What's New

8th Jan 2010	Last updated Results 2010 Jan-Jun MPECs
8th Jan 2010	Last updated Results on IAU circulars
8th Jan 2010	Last updated observing statistics
(see page)	Last updated Minor Planet Ephemerides details

8th Jan 2010	Added new Main Belt discovery 2009 VJ₄₂ to the Minor Planet Discovery Circumstances and Ephemerides pages. Updated the Closest Observed Approaches to the Earth by Minor Planets page.
15th Nov 2009	Added ephemeris for the (probable) distant artificial satellite 9U01FF6 on the Man made Satellite Orbit and Ephemerides Page. Added new Main Belt discovery 2009 VC to the Minor Planet Discovery Circumstances and Ephemerides pages.
14th Oct 2009	Added new Main Belt discoveries 2009 SG₁₇₁ and 2009 TQ₂ to the Minor Planet Discovery Circumstances and Ephemerides pages.
18th Sep 2009	Added ephemeris for the distant artificial satellite 9O0DC57 on the Man made Satellite Orbit and Ephemerides Page. Added new Main Belt discovery 2009 SO to the Minor Planet Discovery Circumstances and Ephemerides pages. Moved 2009 FK₁ (= 2007 RA₇₁) to the non-principal designations list on the Minor Planet Discovery Circumstances page.
31st May 2009	Added new Main Belt discoveries 2009 HR₁₂ and 2009 HW₅₈ to the Minor Planet Discovery Circumstances and Ephemerides pages.
7th Apr 2009	Added new Main Belt discoveries 2009 EE₃ and 2009 FK₁ to the Minor Planet Discovery Circumstances and Ephemerides pages.
8th Mar 2009	Added new Main Belt discoveries 2009 EJ, 2009 EK, 2009 EL₂, 2009 EM₂ to the Minor Planet Discovery Circumstances and Ephemerides pages.
18th Feb 2009	Added new Main Belt discoveries 2009 CU₃, 2009 CB₄, 2009 CC₄, 2009 CL₆ and 2009 CQ₆ to the Minor Planet Discovery Circumstances and Ephemerides pages. Revised ephemerides for the distant artificial satellites WMAP and THEMIS-B (=2007-004B) on the Man made Satellite Orbit and Ephemerides Pages.
1st Feb 2009	Changed home page picture to 'Aircraft interloper "frozen" by strobe tail light'. Added new Main Belt discoveries 2009 BC₁₀ and 2009 BG₁₀ to the Minor Planet Discovery Circumstances and Ephemerides pages.
22nd Jan 2009	Updated and added links on the Useful Links page. Revised ephemerides for the distant artificial satellites Geotail, WMAP and THEMIS-B (=2007-004B) on the Man made Satellite Orbit and Ephemerides Pages. Added new Main Belt discoveries 2009 AJ₂, 2009 AK₂and 2009 AL₂ to the Minor Planet Discovery Circumstances and Ephemerides pages.
11th Jan 2009	Added new Main Belt discoveries 2009 AN₁ and 2009 AO₁ to the Minor Planet Discovery Circumstances and Ephemerides pages.
4th Jan 2009	Added a link for the Fog and Low Cloud animation provided by EUMETSAT to the Moon etc. page. Added new Main Belt discovery 2008 YT₂₄ to the Minor Planet Discovery Circumstances and Ephemerides pages.
29th Dec 2008	Revised ephemeris for artificial satellite THEMIS-B (=2007-004B) on the Man made Satellite Orbit and Ephemerides Pages.
24th Dec 2008	Added new Main Belt discoveries 2008 XZ₆ and 2008 XE₇ to the Minor Planet Discovery Circumstances and Ephemerides pages.
11th Dec 2008	Updated pseudo-MPEC ephemerides for the distant artificial satellites IMP8, 1983-020A, 1983-020D, Geotail and WMAP on the Man made Satellite Orbit and Ephemerides Pages following recent observations.
30th Nov 2008	Added new Main Belt asteroid discovery 2008 WH₂ to the Minor Planet Discovery Circumstances and Ephemerides pages.
9th Nov 2008	Added account of co-pilot Coen van Uden to the 2008 TC₃ - Eyewitness accounts of the final moments
4th Nov 2008	Added new inner Main Belt asteroid discovery 2008 UX₂₀₂ to the Minor Planet Discovery Circumstances and Ephemerides pages.
1st Nov 2008	Added new Main Belt discoveries 2008 UH₉₅ and 2008 UE₉₉ to the Minor Planet Discovery Circumstances and Ephemerides pages.
30th Oct 2008	Added new Main Belt discoveries 2008 UH₁, 2008 UF₃ and 2008 UO₅ to the Minor Planet Discovery Circumstances and Ephemerides pages. Corrected September 2008 figures on the Observing Statistics page.
20th Oct 2008	Added 2008 TC₃ - The first asteroid to be discovered before impacting Earth and 2008 TC₃ - Eyewitness account of the final moments to the Asteroid Gallery. Updated Closest Observed Approaches of NEOs to Earth with details of 2008 TC₃ and 2008 TS₂₆.
18th Oct 2008	Added new Main Belt discoveries 2008 TV₉, 2008 TC₂₆ and 2008 TR₁₅₆ to the Minor Planet Discovery Circumstances and Ephemerides pages.
10th Oct 2008	Added new Main Belt discovery 2008 TG₉ to the Minor Planet Discovery Circumstances and Ephemerides pages.
5th Oct 2008	Added new Main Belt discoveries 2008 SB₈₃, 2008 TV and 2008 TR₁ to the Minor Planet Discovery Circumstances and Ephemerides pages and added 2008 SE₈₅ to the non-principal designations list on the Discovery Circumstances page.
19th Sep 2008	Added new Main Belt discovery 2008 QM₂₀ to the Minor Planet Discovery Circumstances and Ephemerides pages and added 2008 QE₂₀ to the non-principal designations list on the Discovery Circumstances page.
1st Aug 2008	Added NGC 7380 (Open cluster and nebula in Cepheus) to the Deep Sky Gallery. Added SAGAS Summer meeting of 19th July 2008 to the Meetings page.
7th July 2008	Updated Closest Observed Approaches of NEOs to Earth with details of 2008 JL₂₄. Updated IMP8 ephemeris on the Artificial Satellite Pseudo MPECs page following recently acquired astrometry. Updated Observatory Location lat/long/alt with measurements from GoogleEarth .
10th Apr 2008	Added new Main Belt discoveries 2008 GB₂, 2008 GD₃ and 2008 GE₃ to the Minor Planet Discovery Circumstances and Ephemerides pages.
31st Mar 2008	Updated Closest Observed Approaches of NEOs to Earth with details of 2008 FP. Added new Main Belt discovery 2008 FM₅ to the Minor Planet Discovery Circumstances and Ephemerides pages.
23rd Mar 2008	Changed home page picture to 'Telescope mounting being tested March 2008' following equipment failure on 12 March 2008.
9th Mar 2008	Updated Closest Observed Approaches of NEOs to Earth with details of 2008 EZ₇. Added ephemeris for 2007-004B to the Man made Satellite Orbit and Ephemerides Page.
4th Mar 2008	Added ephemerides for Geotail and WMAP to the Man made Satellite Orbit and Ephemerides Page and updated the ephemerides for 1983-020A, 1983-020D and IMP-8.
23rd Feb 2008	Updated Closest Observed Approaches of NEOs to Earth with details of 2008 AF₃.
20th Feb 2008	Added a link on the Ephemerides page to Juan Lacruz's Observation Log Query page (which includes J95 in its list of observatories). Changed name of 6R10DB9 to 2006 RH₁₂₀ in Closest Observed Approaches, A second Moon for the Earth? and related pages following its recent designation as a minor planet.
20th Jan 2008	Added new Main Belt discovery 2008 AV₇₂ to the Minor Planet Discovery Circumstances and Ephemerides pages.
7th Jan 2008	Moved 2007 XW₁₆ from the list of Minor Planet Discoveries to the list of Non-principal designations on the Minor Planet Discovery Circumstances page following its identification with 2003 AG₂₀, which had been observed 5-8 Jan 2003.
4th Jan 2008	Added new Main Belt discovery 2007 YP₄₇ to the Minor Planet Discovery Circumstances and Ephemerides pages. The Ephemerides page has been combined with the previously available Minor Planet Opposition Date page to provide more information in one location.
30th Dec 2007	Updated Closest Observed Approaches of NEOs to Earth with details of 2007 VF₁₈₉.
24th Dec 2007	Added new Main Belt discoveries 2007 YL₂ and 2007 YM₂to the Minor Planet Discovery Circumstances pages. Only two nights of positions were possible before the Moon interfered, so the status of both objects is insecure until the next dark of the Moon.
18th Dec 2007	Added new Main Belt discoveries 2007 XS₁₆, 2007 XT₁₆, 2007 XV₁₆, 2007 XW₁₆, 2007 XY₁₇, 2007 XB₁₈, 2007 XC₁₈, 2007 XD₁₈ & 2007 XU₂₃to the Minor Planet Discovery Circumstances pages.
27th Nov 2007	Added a 43'x43' wide, 9 tile mosaic image of Comet 17P/Holmes in the Comet Gallery, taken at full Moon with the Moon just 27° distant. Changed format of Minor Planet opposition date details page to include more columns and to identify currently observable objects.
15th Nov 2007	Added Comet P/2007 T₂ (Kowalski) to the Comet Gallery.
9th Nov 2007	Updated Comet 17P/Holmes page in the Comet Gallery with an 8-date animation of the expanding inner coma.
28th Oct 2007	Added Comet 17P/Holmes to the Comet Gallery.
27th Oct 2007	Updated details following the recent numbering of 2005 EC₁ as (164359) and, just two months after discovery, 2007 PY₁ as (168270) on the Ephemerides and the Minor Planet Discovery Circumstances pages.
2nd Oct 2007	Updated Closest Observed Approaches of NEOs to Earth with details of 6R10DB9 and 2007 RS₁.
20th Sep 2007	Added new Main Belt discoveries 2007 RE₁₃₃ & 2007 RF₁₃₃ to the Ephemerides and the Minor Planet Discovery Circumstances pages.
13th Sep 2007	Added new Main Belt discoveries 2007 RV₁₀ & 2007 RA₁₂ to the Ephemerides and the Minor Planet Discovery Circumstances pages.
21st Aug 2007	Added Comet 73P/Schwassmann-Wachmann The Spitzer Space Telescope image page showing comet fragment identifications and also The full-size Spitzer Space telescope image and Summary of Fragments pages. Added a Spitzer close-up of fragments near H & N to Comet 73P/Schwassmann-Wachmann page 2.
18th Aug 2007	Added new Main Belt discoveries 2007 PO₂₉, 2007 PP₂₉ and 2007 QK to the Ephemerides and the Minor Planet Discovery Circumstances pages.
13th Aug 2007	Added new Main Belt discoveries 2007 PL, 2007 PG₁, 2007 PY₁, 2007 PN₉ and 2007 PO₉ to the Ephemerides and the Minor Planet Discovery Circumstances pages.
1st Aug 2007	Updated details following the recent numbering of 2003 NL₈ as (159786).on the Ephemerides and the Minor Planet Discovery Circumstances pages.
28th July 2007	Added lists of archived 'Previous NEO Confirmation Page Objects' to the LINKS page.
27th July 2007	Changed home page picture to Summer floods in Great Shefford, taken 20th Jul 2007.
19th July 2007	Added comet C/2007 O1 (LINEAR) to the Comet Gallery.
25th June 2007	Updated 6R10DB9 page and its pseudo-MPEC orbit solution using observations from 14 Sep 2006 to 22 June 2007.
19th June 2007	Added a four frame animation to the 6R10DB9 page from 15 June 2007.
16th June 2007	Updated 6R10DB9 page with details of new astrometry obtained 15 June 2007.
9th June 2007	Moved details from the 2005 UW₅ page and added them to a new Closest Observed Approaches to the Earth by Minor Planets page.
5th June 2007	Added 2nd June 2007 BAA ARPS meeting to the Meetings page. Added a pseudo MPEC for artificial satellite IMP8 to the Man made Satellite Orbit and Ephemerides Page with ephemeris covering 2007-June - 2008-July.
21st May 2007	Added Aten 2007 HA passing irregular galaxy NGC 4449 to the Deep Sky Gallery. Amended details for two-nighter 2004 VM₆₄from minor planet discovery to non-principal designation on the Minor Planet Discovery Circumstances page following its re-discovery and re-designation as 2007 HG₇. Added 11th May 2007 meeting to the Meetings page.
11th May 2007	Amended details for 2007 GA from minor planet discovery to non-principal designation on the Minor Planet Discovery Circumstances page following its identification with 2004 TN₂₀₀.
23rd Apr 2007	Added new Main Belt discoveries 2007 HQ₄, 2007 HR₄ and 2007 HB₅ to the Ephemerides and the Minor Planet Discovery Circumstances pages.
7th Apr 2007	Added new Main Belt discovery 2007 GA and updated details following the recent numbering of 2005 VV₂ as (155216).on the Ephemerides and the Minor Planet Discovery Circumstances pages.
2nd Apr 2007	Added 6R10DB9 - A second Moon for the Earth? to the Asteroid Gallery. Updated Closest Observed Approaches of NEOs to Earth with details of 2007 EH and 2007 EK.
29th Mar 2007	Added 2007 EH - A Very Fast Moving Object to the Asteroid Gallery.
22nd Mar 2007	Added new Main Belt discovery 2007 EA₁₈₃ to the Ephemerides and the Minor Planet Discovery Circumstances pages.
15th Mar 2007	Added new Main Belt discovery 2007 CB₆₄ and updated details following the recent numbering of 2005 TV₄₉ as (152298).on the Ephemerides and the Minor Planet Discovery Circumstances pages.
4th Mar 2007	Added GS733A and updated details on the Man made Satellite Orbit and Ephemerides Pages in the Man made Satellite Gallery.
11th Feb 2007	Added 2006 CJ (recovery at 2nd opposition) to the Asteroid Gallery.
8th Feb 2007	Changed home page picture to a Wintry Scene in Great Shefford, taken 8th Feb 2007.
1st Feb 2007	Updated Closest Observed Approaches of NEOs to Earth with details of 2007 BD.
28th Jan 2007	Added Apollo asteroid 2007 BD₇ and Planetary Nebula PK 164.8+31.1 to the Deep Sky Gallery.
23rd, 24th Jan 2007	Added new Main Belt discovery 2007 BC₃ to the Ephemerides and the Minor Planet Discovery Circumstances pages. Added/updated page listing upcoming opposition dates for Great Shefford Minor Planet discoveries.
21st Jan 2007	Added new Main Belt discovery 2007 AN₉ to the Ephemerides and the Minor Planet Discovery Circumstances pages.
8th Jan 2007	Corrected details & external URL for MPC observatories 480 and 502 on Location Map page. Updated details on Ephemerides and the Minor Planet Discovery Circumstances pages following the recent numbering of 2005 TW₄₉ as (147833). Added home page 'cover' image archive with link from bottom of home page.
1st Jan 2007	Added observing statistics totals for the year of 2006.
17th Dec 2006	Added new Main Belt discoveries 2006 XY₄ and 2006 XZ₄ to the Ephemerides and the Minor Planet Discovery Circumstances pages.
14th Dec 2006	Updated Closest Observed Approaches of NEOs to Earth with details of 2006 WV. Updated details on Ephemerides and the Minor Planet Discovery Circumstances pages following the recent numbering of 2006 GP₃ as (145535).
2nd Dec 2006	Added new Main Belt discoveries 2006 WJ₄, 2006 WE₂₉ and 2006 WU₁₂₉ to the Ephemerides and the Minor Planet Discovery Circumstances pages.
7th Nov 2006	Added new Main Belt discovery 2006 VP₁ to the Ephemerides page.
30th Oct 2006	Added 2006 UT₂₁₅ to the non-principal designations table on the Minor Planet Discovery Circumstances page.
28th Oct 2006	Added Comet P/2006 U1 (LINEAR) to the Comet Gallery.
27th Oct 2006	Added two images of Comet P/2006 T1 (Levy) passing galaxy NGC 3521, guided and unguided, to the P/2006 T1 (Levy) page in the Comet Gallery and linked to the Deep Sky Gallery.
18th, 23rd Oct 2006	Added links to 1 and 5+ year observability charts for minor planets on the Ephemerides page, generated using the Lowell Observatory Asteroid Observation Chart Builder tool. Updated recent details on the Minor Planet Discovery Circumstances page.
15th Oct 2006	Updated Comet C/2006 A1 (Pojmanski) with image from 2006 Sep 7 in the Comet Gallery.
10th Oct 2006	Added Comet C/2006 M4 (SWAN) to the Comet Gallery, changed designation of comet C/2006 T1 (Levy) to periodic comet designation P/2006 T1.
5th Oct 2006	Added images of Comet C/2006 T1 (Levy) from 04 Oct 2006 to the C/2006 T1 page. Added new Main Belt discoveries 2006 TX, 2006 TY, 2006 TZ and 2006 TY₆ to the Ephemerides and the Minor Planet Discovery Circumstances pages.
3rd Oct 2006	Added Comet C/2006 T1 (Levy) to the Comet Gallery.
28th Sep 2006	Updated Closest Observed Approaches of NEOs to Earth with details of 2006 QM₁₁₁.Updated Observatory lat./long.on Location page.
24th Sep 2006	Added Meetings page to the main navigation, including four supernova discoverers page, IHW Astrometry net 1984 group photo page and a link to the presentation Direct determination of NEO distance by parallax as delivered by Monty Robson and Peter Birtwhistle at MACE 2006 in Vienna on 12 May 2006 (make sure "Notes" are selected so that dialogue can be followed). The same link also added to the Direct Distance Measurement of NEOs by Parallax page. Updated GS697A and added GS61LA to the Artificial Satellite MPEC list in the Artificial Satellite Gallery
11th Sep 2006	Added Artificial Satellite MPEC list (elements and ephemerides) to the Artificial Satellite Gallery
30th Aug 2006	Added Comet 112P (Urata-Niijima) to the Comet Gallery.
28th Aug 2006	Added image of Comet 177P (Barnard) from 2006 Aug 21 to the Comet Gallery.
5th Aug 2006	Added Comet P/2006 HR₃₀ (Siding Spring) to the Comet Gallery.
4th Aug 2006	Added Comet 102P (Shoemaker) to the Comet Gallery.
24th July 2006	Updated Closest Observed Approaches of NEOs to Earth with details of 2006 OK₃.
23rd July 2006	Added Comet 177P (Barnard) to the Comet Gallery.
24th June 2006	Added Comet C/2006 M1 (LINEAR) to the Comet Gallery.
11th June 2006	Replaced images of 73P-C/Schwassmann-Wachmann from 20 Mar 2006 and 73P-B from 02 Apr 2006 and 04 Apr 2006 with DDP processed versions, revealing more inner coma detail.
6th June 2006	Minor updates to the Location and History pages.
29th May 2006	Added images taken on 06 May 2006 of fragments 73P-AP and 73P-BC to the continuation page of Comet 73P/Schwassmann-Wachmann in the Comet Gallery and component 73P-C from 11 May 2006 to the main 73P/Schwassmann-Wachmann page.
27th May 2006	Replaced some out of date weather links on the Moon etc. page and added various other weather links, including a clear sky clock for the Great Shefford area. Added Sun and Moon rising/setting times from WeatherUnderground to the foot of each page.
25th May 2006	Added Interlaced Stacking to the Stacking Techniques pages in the Methods section. Updated next apparition details for some objects on the Ephemerides page.
21st May 2006	Updated 73P images with recently named fragments 73P-BO, BP & BQ on the continuation page for Comet 73P/Schwassmann-Wachmann in the Comet Gallery. Replaced the Equipment page with details of the 16" Meade LX200GPS telescope and Apogee Alta U47+ CCD. The previous page with details of 12" LX200GPS and Apogee AP47p CCD in use from 2002-2005 is now available here.
20th May 2006	Added images taken on 11 May 2006 of the debris trail from component B to the Comet 73P/Schwassmann-Wachmann page in the Comet Gallery.
18th May 2006	Changed home page picture to an image from MACE 2006 in Vienna. Fixed a problem with the Contact Us page that had prevented messages being sent to Great Shefford Observatory webmaster since the change of domain to www.birtwhistle.org on 7th Mar 2006.
7th May 2006	Added images of the inner coma and debris trail from component B to the Comet 73P/Schwassmann-Wachmann page in the Comet Gallery.
1st May 2006	Added images of 8 fragments near H & N from Apr 28 and 30 to a continuation page for Comet 73P/Schwassmann-Wachmann in the Comet Gallery.
19th Apr 2006	Added animation of fragments M & N from Apr 18 (showing split of fragment N) to the Comet 73P/Schwassmann-Wachmann page in the Comet Gallery.
14th Apr 2006	Added new Main Belt discovery 2006 GQ₃ and probable Hilda type Minor Planet discovery 2006 GS₃ to the Ephemerides and the Minor Planet Discovery Circumstances pages.
11th Apr 2006	Added 17 day animation of fragments H, M & N to the Comet 73P/Schwassmann-Wachmann page in the Comet Gallery. Added new Main Belt discovery 2006 GP₃ to the Ephemerides and the Minor Planet Discovery Circumstances pages.
9th Apr 2006	Added new Main Belt discoveries 2006 GD₁, 2006 GZ₁, 2006 GA₂ and 2006 GG₂ to the Ephemerides and the Minor Planet Discovery Circumstances pages. Added 2002 GH₈₅ =2005 FE₃₅to the list of discoveries with non-principal designations.
4th Apr 2006	Added component B & P to the Comet 73P/Schwassmann-Wachmann page in the Comet Gallery.
30th Mar 2006	Updated orbit details of Comet P/2006 F1 (Kowalski) including close approach to Jupiter in Jan 2003.
27th Mar 2006	Added Comet C/2006 F1 (Kowalski) to the Comet Gallery.
24th Mar 2006	Added Comet 73P/Schwassmann-Wachmann to the Comet Gallery. Updated details for recent discoveries on Ephemerides page and also the recent numbering of 2004 OJ₉ as (128465), also updated on 2004 OH9, 204 OJ9, 2004 PN2, 2004 PO95 page.
11th Mar 2006	Updated Closest Observed Approaches of NEOs to Earth with details of 2006 EC. Added new Main Belt discovery 2006 EN₄₅ to the Ephemerides and the Minor Planet Discovery Circumstances pages. Removed last updated dates of Results on MPECs, IAUCs and observing statistics and summarised into new table at top of What's New page.
7th Mar 2006	Added Comet C/2006 A1 (Pojmanski) to the Comet Gallery. Added new Main Belt discoveries 2006 EN, 2006 EQ and 2006 EJ₁ to the Ephemerides and the Minor Planet Discovery Circumstances pages. Great Shefford Observatory web site moved from birtwhi.demon.co.uk domain to birtwhistle.org.
25th Feb 2006	Updated Closest Observed Approaches of NEOs to Earth with details of 2006 DD₁.
23rd Feb 2006	Added new Main Belt discovery 2006 DH to the Ephemerides and the Minor Planet Discovery Circumstances pages.
7th Feb 2006	Added close approach NEO 2006 BV₃₉ to the Asteroid Gallery and updated the diagram of Closest Observed Approaches to include it and other recent NEOs. Updated several next apparition details on the Ephemerides page.
23rd Jan 2006	Revised Links page, including adding Emil Neata's Night Sky Info and MPC's NEAObs. Updated several next apparition details on the Ephemerides page and UCAC2 status on the Software page.
2nd Jan 2006	Added observing statistics totals for the year of 2005.
26th Dec 2005	Added new Main Belt discovery 2005 YA to the Ephemerides and the Minor Planet Discovery Circumstances pages.
17th Dec 2005	Added Searching using NEOCP Variant Orbits to the Stacking Techniques page. Added new Main Belt discovery 2005 WN₆₀ to the Ephemerides and the Minor Planet Discovery Circumstances pages and updated several next apparition details.
4th Dec 2005	Added new Main Belt discoveries 2005 WQ₅₇ , 2005 WR₅₇ and 2005 WU₅₇ to the Ephemerides and the Minor Planet Discovery Circumstances pages.
29th Nov 2005	Added close approach of 2005 WN₃ to the Asteroid Gallery.
17th Nov 2005	Added new Main Belt discoveries 2005 VJ₇ and 2005 VW₇to the Ephemerides and the Minor Planet Discovery Circumstances pages.
9th Nov 2005	Added new Main Belt discovery 2005 VV₂ to the Ephemerides and the Minor Planet Discovery Circumstances pages and also added a table of non-principal designations to the latter. Added new columns [G] and [H] to the observing statistics for October 2005.
1st Nov 2005	Added close approach of 2005 UW₅ to the Asteroid Gallery. Added new Main Belt discoveries 2005 UZ₆, 2005 UA₇and 2005 UB₇ to the Ephemerides and the Minor Planet Discovery Circumstances pages.
29th Oct 2005	Removed 2005 US₃ from the Ephemerides and the Minor Planet Discovery Circumstances pages after linking to (principle designation) 2001 QD₂₅₂.
28th Oct 2005	Added new Main Belt discoveries 2005 UR₃ and 2005 US₃ to the Ephemerides and the Minor Planet Discovery Circumstances pages.
21st Oct 2005	Added Planetary Satellites and Mars & Deimos page to the Gallery. Updated uncertainty figures on the Ephemerides page.
11th Oct 2005	Added new Main Belt discoveries 2005 SO₁₃₄, 2005 TV₄₉ and 2005 TW₄₉ to the Ephemerides and the Minor Planet Discovery Circumstances pages.
29th Sep 2005	Added new Main Belt discoveries 2005 SW₂₁ and 2005 SX₂₁ to the Ephemerides and the Minor Planet Discovery Circumstances pages. Minor changes made to home page and Equipment page.
28th Sep 2005	Added new Main Belt discoveries 2005 SR₁₉ and 2005 SS₁₉ to the Ephemerides and the Minor Planet Discovery Circumstances pages.
15th Sep 2005	Added 2005 RV₂₄ & NGC 7009 (Saturn Nebula) to the Deep Sky Gallery.
6th Sep 2005	Added North Observatory, Clanfield (J69) to the local observatories Location Map. Updated next apparition details for recent discovery 2005 PZ₄ on the Ephemerides page.
20th Aug 2005	Added a 7 day animation to the comet P/2002 EX₁₂ (NEAT) page in the Comet Gallery.
19th Aug 2005	Added new Main Belt discovery 2005 PZ₄ to the Ephemerides and the Minor Planet Discovery Circumstances pages.
16th Aug 2005	Added 2003 UB₃₁₃ to the Asteroid Gallery.
2nd Aug 2005	Added comet P/2002 EX₁₂ (NEAT) to the Comet Gallery.
22nd Jul 2005	Added comet C/2005 N₁ (Juels-Holvorcem) to the Comet Gallery.
14th Jul 2005	Added comet C/2005 N₅ (CATALINA) to the Comet Gallery.
7th Jul 2005	Added image of SN 2005cs from 6 July 2005 to Supernova 2005cs page in Supernova Gallery. Added PoleAlignMax to the Software page.
1st Jul 2005	Added Supernova 2005cs to Supernova Gallery. Updated First Light and Equipment Upgrade June 2005 pages.
26th Jun 2005	Following the installation of a new 16" telescope updated Equipment Upgrade June 2005 page.
11th Jun 2005	Updated next apparition details for 2005 GZ₆₀ and 2004 DN₂₅on the Ephemerides page.
9th Jun 2005	Updated Equipment Upgrade June 2005 page and added Shutter latency details on Equipment page.
5th Jun 2005	Added Equipment Upgrade June 2005 page.
30th May 2005	Updated 2004 DN₂₅ page with second apparition recovery details.
19th May 2005	Added comet C/2005 K₁ (Skiff) to the Comet Gallery. Updated the recovery page of 2003 NZ₆.
6th May 2005	Added Met Office latest infrared satellite image and the Theyr cloudcast to the Moon etc. page.
21st Apr 2005	Changed image of Great Shefford Observatory on home page. Updated next apparition details for 2005 GZ₆₀ on the Ephemerides page.
13th Apr 2005	Added new Main Belt Discovery 2005 GZ₆₀ to the Ephemerides page and to the Minor Planet Discovery Circumstances page. Updated next apparition details for recent discoveries on the Ephemerides page.
4th Apr 2005	Updated next apparition details for recent discoveries on the Ephemerides page.
16th Mar 2005	Added new Main Belt Discovery 2005 EJ₂₂₂ to the Ephemerides page and to the Minor Planet Discovery Circumstances page..
7th Mar 2005	Updated Direct Distance Measurement of NEOs by Parallax after visit by Dr Jeff Tarvin to Great Shefford. Added new Main Belt Discovery 2005 EF₃₀ to the Ephemerides page and to the Minor Planet Discovery Circumstances page.
4th Mar 2005	Added four new Main Belt Discoveries (found in the same field while recovering 2003 TQ₃ at its second apparition) to the Ephemerides page and the Minor Planet Discovery Circumstances page. Added next apparition data to Ephemerides page.
13th Feb 2005	Added Uncertainty Maps & Variant Orbits to the Stacking Techniques part of the Methods section. Added comet C/2004 U₁ to the Comet Gallery (originally prepared 24 Oct 2004).
29th Jan 2005	Added discovery circumstances page for 2005 AH and 2005 AJ (note: page contains ~400k image) and added a Discovery Circumstances page to the Results page.
22nd Jan 2005	Added new Shefford main belt discovery 2005 AD₄₆ to Ephemerides page.
6th Jan 2005	Added new Shefford main belt discoveries 2005 AH and 2005 AJ to Ephemerides page. Updated the first Shefford discovery 2003 NL8 with recovery images.
2nd Jan 2005	Updated observing statistics with totals for 2004. Amended baseline distance and contact details on Direct Distance Measurement of NEOs by Parallax page.
30th Dec 2004	Added Direct Distance Measurement of NEOs by Parallax to the Methods page.
27th Dec 2004	Added 2004 MN4 to the Asteroid Gallery, updated Results 2004 Jul-Dec MPECs and added column to Statistics page (Time CCD exposing)
8th Dec 2004	Added comet P/2004 WR9 to the Comet Gallery.
5th Dec 2004	Added link to Metcheck 48 hour cloudcast forecast on Moon etc. page
25th Nov 2004	Updated the MPC Listed Observatories Location map.
18th Nov 2004	Added new Shefford main belt discovery 2004 VD70 to Ephemerides page.
16th Nov 2004	Added new Shefford main belt discoveries 2004 VM64 and 2004 VK65 to Ephemerides page. Amended name of P/2003 YM159 to P/2004 V5.
11th Nov 2004	Added split comet P/2003 YM159 to the Comet Gallery.
7th Nov 2004	Added the first of several pages on Track & Stack techniques for Astrometrica. Updated some links on Results page.
13th Oct 2004	Updated external link on 2002 AA29 page
12th Sep 2004	Added a further image of C/2004 Q2 (Machholz) to the Comet Gallery and new Shefford main belt discovery 2004 RF to Ephemerides page. Added Site Map to Navigation bar.
2nd Sep 2004	Removed Great Shefford weather forecasts from the Moon etc page (functionality removed by provider).
28th Aug 2004	Added C/2004 Q1 (Tucker) and C/2004 Q2 (Machholz) to the Comet Gallery.
24th Aug 2004	Added C/2004 P1 (NEAT) to the Comet Gallery.
21st Aug 2004	Added new Shefford main belt discoveries 2004 OH9, 204 OJ9, 2004 PN2, 2004 PO95 page and to Ephemerides page.
6th Aug 2004	Updated the Equipment page with details of ADSL coming to Great Shefford and the effect on precise timekeeping.
29th Jul 2004	Added new Shefford main belt discoveries 2004 OH₉ and 2004 OJ₉ to the Ephemerides page.
19th Jul 2004	Added 2004 OD4 to the Asteroid gallery.
10th Jul 2004	Made minor changes to Methods page. Added Great Shefford weather forecasts to Moon etc.
9th Jul 2004	Added 2004 MC to the Asteroid gallery including details of visit from Juan Lacruz,
4th Jul 2004	Added C/2004 K3 (LINEAR) to the Comet Gallery.
17th Jun 2004	Added 2004 LA₁₀ to the Asteroid gallery, added image to C/2003 K4 (LINEAR) page on the Comet Gallery.
28th Apr 2004	Added 2004 GC₁₉ to the Asteroid Gallery. Updated Dimension4 (version 4.5) details on software page..
16th Apr 2004	Added 2004 FY₃₁ to the Asteroid Gallery. Added Comet P/2004 F3 (NEAT) to the Comet Gallery.
28th Mar 2004	Added 2004 FK₅ to the Asteroid Gallery.
27th Mar 2004	Added 2004 DW, 2004 EL₂₀ and 2004 ER₂₁ to the Asteroid Gallery.
5th Mar 2004	Added Great Shefford's fourth minor planet discovery 2004 DN₂₅ to the Asteroid Gallery.
3rd Mar 2004	Added 2004 CZ₁ to the Asteroid Gallery.
2nd Mar 2004	Added pages for 2004 DF₂, 2004 DA₅₃ and 2000 EV₇₀ to the Asteroid Gallery. Changed 7th Feb 2004 image of C/2002 T7 from positive to negative. Added new Shefford discovery 2004 DN25 and recently named 65100 to the Ephemerides page
12th Feb 2004	Added page for 2004 CQ to the Asteroid Gallery. Added an image of C/2002 T7 from 7th Feb 2004, added page for man-made satellite GS428A.
2nd Feb 2004	Added page for 2004 AS₁ to the Asteroid Gallery. Added observing statistics totals for 2004.
20th Jan 2004	Added First Light at Great Shefford to the home page, added (3184) Raab and NGC 3628 to the Deep Sky Gallery..
11th Jan 2004	Added further image of C/2002 T7 from January 11th to the Comet Gallery and added images of 2003 YG₁₁₈ to the Asteroid gallery and the Deep Sky Gallery
3rd Jan 2004	Added further image of C/2002 T7 from December 17th to the Comet Gallery.
25th Dec 2003	Added a further image of Comet P/2003 T1=157P/Tritton to the Comet Gallery.
17th Dec 2003	Added image of Comet P/2003 XD₁₀ to the Comet Gallery.
13th Dec 2003	Added image of Apollo 2003 XH₁₀ and updated 2003 XJ₇ on the Asteroid Gallery.
11th Dec 2003	Added image of Apollo 2003 XJ₇ to the Asteroid Gallery.
3rd Dec 2003	Added image of Aten 2003 WT₁₅₃ to the Asteroid Gallery. Added details of Minor Planet Checker and New Object Ephemeris Generator to the LINKS page.
29th Nov 2003	Added further image of C/2002 T7 to the Comet Gallery.
21st Nov 2003	Added images of C/2002 T7 to the Comet Gallery.
20th Nov 2003	Added images of C/2003 S3 and P/2003 O3 to the Comet Gallery. Added images of IMP-8 and article by Reiner Stoss to the Satellite Gallery.
6th Nov 2003	Added image of 2003 TQ₃ to the Asteroid Gallery.
1st Nov 2003	Added images of Atens 2003 UT₅₅ and 2003 RU₁₁ to the Asteroid Gallery.
26th Oct 2003	Added further images of P/2003 T1 to the Comet Gallery
24th Oct 2003	Added images of comets C/2003 T4 and C/2003 U1 to the Comet Gallery
22nd Oct 2003	Added image of comet 2P/Encke to the Comet Gallery, added Great Shefford's third asteroid discovery (2003 TQ₃) to the Ephemerides page.
19th Oct 2003	Added image of fade of comet P/2003 T1 to the Comet Gallery
12th Oct 2003	Added image of comet P/2003 T1 to the Comet Gallery. Updated Software (FocusMax).
2nd Oct 2003	Added images of Apollo 2003 SQ₂₂₂ to the Asteroid Gallery.
1st Oct 2003	Added images from 29th and 30th September of Apollo 2003 SM₂₁₅ to the Asteroid Gallery.
29th Sep 2003	Added image of Apollo 2003 SM₂₁₅ to the Asteroid Gallery.
27th Sep 2003	Added image of Apollo 2003 SR₈₄ to the Asteroid Gallery.
25th Sep 2003	Added image of comet P/2003 S2 (NEAT) to the Comet Gallery.
24th Sep 2003	Added image of comet P/2003 S1 (NEAT) to the Comet Gallery
20th Sep 2003	Added Great Shefford's second Discovery of 2003 RV₁₀ to Asteroid Gallery. Added a page to generate ephemerides from the MPC. Software page (UCAC2).updated.
12th Sep 2003	Added Discovery of 2003 NL₈ to Asteroid Gallery. Added page on Moon (and how to avoid it).
6th Sep 2003	Added M35 & 2003 QC₁₀ to the Asteroid Gallery and Deep Sky Gallery. Minor changes to text on NGC 6992 & 2003 MK₄ page.
5th Sep 2003	Added images of P/2002 T6 to the Comet Gallery.
25th Aug 2003	Animation of 2003 QB₃₀ added to the Asteroid Gallery.
20th Aug 2003	Added images of Supernovae 2003 gw in UGC 3252 and 2003 gx in MGC +06-3-7 to the Supernova Gallery. Added an image of P/2003 O3 to the Comet Gallery.
17th Aug 2003	Added images of Supernovae 2003 gu in UGC 12331 and 2003 hc in UGC1993 to the Supernova Gallery. Added an image of C/2003 O1 to the Comet Gallery.
10th Aug 2003	Added an image of P/2003 O2 and flat coma profile to Comet Gallery, added Supernova Gallery and image of 2003 gd in M74 to the Supernova Gallery.
7th Aug 2003	Added a personal account of the 2003 close approach of the Aten 2003 NZ₆ to the Asteroid Gallery
5th Aug 2003	Added montage of P/2003 O3 to Comet Gallery, fixed broken link on Methods page.
4th Aug 2003	Added image of 2P/Encke to Comet Gallery.
1st Aug 2003	Added close ups of C/2003 O2 (LINEAR)'s diffuse coma to Comet Gallery.
31st July 2003	Added image of C/2003 O2 (LINEAR) to Comet Gallery.
28th July 2003	Results Jul-Dec 2003 MPECs updated
27th July 2003	Added Jul 14 2003 image of C/2001 K5 to Comet Gallery
25th July 2003	Added comet images of P/2003 A1, P/2003 CP7, C/2003 E1, C/2003 F1, P/2003 F2, C/2003 G1, C/2003 G2, C/2003 H1, C/2003 H2, C/2003 H3, P/2003 H4, C/2003 K1, P/2003 KV2, C/2003 K4 to Comet gallery.
21st July 2003	Added animation of C/2003 O1 to Comet Gallery.
18th July 2003	'Best Deep Sky image' added.
11th July 2003	2003 LP₆ added to Asteroid gallery.
5th July 2003	Web site created