Hampshire Astronomical GroupEstablished 1960, Online since 1998 | ![]() |
Observatory Accessibility
GOOD
Hampshire Astronomical Group welcome you!
The Hampshire Astronomical Group, operates from its Clanfield Observatory on the border of the villages of Horndean and Clanfield, and is reputed to be one of the best equipped amateur observatories in the UK. The observatory is situated on the edge of the beautiful South Downs National Park.
From autumn to spring we run our very popular Open Evenings for the general public. These always book up very quickly so please keep an eye on the website for the release of new events.
We also take private visits from Guides, Scouts, U3A and other interested groups. Details can be found on the 'Schools and Club Visits' page.
Also popular are our astronomy courses which start in September and January. More details on these can be found in this website under ‘Astronomy Courses’ and then choosing ‘Astronomy for Beginners Course’.
Our monthly public lectures are held at Clanfield Memorial Hall. The latest program can be found on our ‘Public Talks page’. All are welcome and admission is £4 for non-members (£2 for under 16).
Thank you for visiting our website and we hope to see you in person in the not-too-distant future. If you have any queries, please do not hesitate to contact us via the ‘Contact Information’ page.
Steve Bosley
Chairman: Hampshire Astronomical Group
What's on in the next month...
| Saturday, 17th October 2026 |
Public Open Evening Sold Out! Moon & Saturn - start time 7:15pm |
More details... |
| Sunday, 18th October 2026 |
Public Open Evening Sold Out! Moon & Saturn - start time 7:15pm |
More details... |
| Friday, 13th November 2026 |
A History of Hampshire Astronomical Group Richard Judd Clanfield Memorial Hall - start time 8:00pm |
More details... |
Open Evenings at the Observatory

We have now set some dates for Open Evenings from January to April 2027.
Open Evening Dates Available are:
Sunday 17th January 2027
Saturday 13th & Sunday 14th February 2027
Sunday 28th February 2027
Sunday 14th March 2027
Saturday 10th & Sunday 11th April 2027 -- Adults Only Evening
Tickets can be purchased on our website through Ticket Tailor.
https://hantsastro.org.uk/ openevenings/index.php
Please Note: Minimum age is set at 8 years old.
Tickets are selling fast.
New dates for September to December 2027 Open Evenings will be uploaded to the website on the 15th September 2027.
What's on between next month and 6 months...
| Saturday, 21st November 2026 |
Public Open Evening Sold Out! Moon & Saturn - start time 7:15pm |
More details... |
| Sunday, 22nd November 2026 |
Public Open Evening Sold Out! Moon & Saturn - start time 7:15pm |
More details... |
| Friday, 11th December 2026 |
Aurorae TBC A talk by Dr John Mason of the South Downs Planetarium Clanfield Memorial Hall - start time 8:00pm |
More details... |
| Saturday, 19th December 2026 |
Public Open Evening Sold Out! Moon & Saturn - start time 7:15pm |
More details... |
| Sunday, 20th December 2026 |
Public Open Evening Sold Out! Moon & Saturn - start time 7:15pm |
More details... |
| Friday, 8th January 2027 |
Hunting for Outbursting Young Stars - 10 years on A talk by Dr Dirk Froebrich, University of Kent Clanfield Observatory - start time 8:00pm |
More details... |
| Saturday, 16th January 2027 |
Public Open Evening Sold Out! Moon & Saturn - start time 7:15pm |
More details... |
| Sunday, 17th January 2027 |
Public Open Evening Moon & Saturn Clanfield Observatory - start time 7:15pm |
More details... |
| Friday, 12th February 2027 |
EUCLID and its Impact A talk by Prof Adam Amara, Chief Scientist, UK Space Agency Clanfield Memorial Hall - start time 8:00pm |
More details... |
| Saturday, 13th February 2027 |
Public Open Evening Moon & Saturn - start time 7:15pm |
More details... |
| Sunday, 14th February 2027 |
Public Open Evening Moon & Saturn Clanfield Observatory - start time 7:15pm |
More details... |
| Saturday, 27th February 2027 |
Public Open Evening Sold Out! Saturn, Jupiter & Mars - start time 7:15pm |
More details... |
| Sunday, 28th February 2027 |
Public Open Evening Saturn, Jupiter & Mars Clanfield Observatory - start time 7:15pm |
More details... |
| Friday, 12th March 2027 |
Astronomy Art Workshop Led by Mary McIntyre FRAS Clanfield Memorial Hall - start time 8:00pm |
More details... |
| Saturday, 13th March 2027 |
Public Open Evening Sold Out! Moon, Jupiter & Mars - start time 7:15pm |
More details... |
| Sunday, 14th March 2027 |
Public Open Evening Moon, Jupiter & Mars Clanfield Observatory - start time 7:15pm |
More details... |
| Friday, 9th April 2027 |
The Antikithera Mechanism Revisited A talk by Professor Mike Edmunds MA PhD FRAS, University of Cardiff Clanfield Memorial Hall - start time 8:00pm |
More details... |
| Saturday, 10th April 2027 |
Public Open Evening -- Adults Only Night Moon, Jupiter & Mars Clanfield Observatory - start time 7:45pm |
More details... |
| Sunday, 11th April 2027 |
Public Open Evening - Adults Only Night Moon, Jupiter & Mars - start time 7:45pm |
More details... |
Astronomical Events for October 2026

Moon
![]() |
Third Quarter |
![]() |
New Moon |
![]() |
First Quarter |
![]() |
Full Moon |
5 Oct – 06:08 BST – The planet seen 40 arcminutes south of the crescent Moon is Mars.
7 Oct – morning – This is a good time to view Flamsteed, a 22km crater. The low Sun angle will reveal some relief features in the region.
14 Oct – 22:00 BST – 0.4° north of the Moon is Antares.
26 Oct – 04:12 UT – Today’s full moon is known as a perigee full Moon, which means it is slightly brighter and with a larger apparent diameter than the average full Moon.
28 Oct – 18:02 UT – The Moon reaches Perigee.
Clair-obscur Effects
20 Oct – evening – When the light of the lunar dawn hits the peaks of the Montes Jura mountain range, this creates the effect known as the Jewelled Handle.
Lunar Occultations
19 Oct – 17:00 BST – Plato’s Hook can be seen; this effect is created when the “curved” rim-peak shadow falls on the floor of the crater Plato.
28 Oct – early morning – The Moon will cross the northern portion of the Pleiades, occulting several stars. Start watching from 23:45 UT on 27 October until 02:30 UT on the 28th October.
Planets
1 Oct – Saturn is approaching opposition, making this a good time to look at the planet’s rings where they will appear to brighten due to a phenomenon called the opposition effect.
4 Oct – Saturn reaches opposition, when the rings will be at their brightest.
4 Oct – Minor planet 2 Pallas is at opposition and can be seen in Cetus.
6 Oct – 11:24 BST – A good opportunity to view Jupiter in daylight when it will be 30 arcminutes north of the crescent Moon.
10 Oct – Mars will begin to cross the middle of the M44 (the Beehive Cluster) and will take three days to cross the open cluster.
12 Oct – Mercury reaches greatest elongation, however its poor position at sunset makes it unlikely to be seen.
13 Oct – Vesta (mag. +6.5) reaches opposition and can be seen in Cetus.
24 Oct – Venus reaches inferior conjunction when it will pass 6.5° south of the Sun, as it transitions from the evening to the morning sky.
31 Oct – Start of an alignment between Mars, Jupiter and Regulus.
Meteor Shower
21 Oct – evening – Peak of the Orionid meteor shower. Best time to view is for 4-5 hours on the morning of 21 October, and 3 hours before dawn on 22 October.
Comets
October – Comet 11P/Tempel-Swift-LINEAR can be seen using a 200mm scope or larger. The RA and Dec coordinates for October are: 1 Oct – RA 01h 56m, Dec +39° 39’; 10 Oct – RA 02h 09m, Dec +38° 58’; 20 Oct – RA 02h 23m, Dec +36° 42’; 30 Oct – RA 02h 36m, Dec +32° 10’.
Miscellaneous
25 Oct – 02:00 BST – End of Daylight saving when the clocks go back one hour to 01:00 UT.
Binocular Objects
Rho and 94 Piscium – A pair of stars 7.5 arcminutes apart. The more orange of the two stars is 94 Piscium.
TX Piscium – this is the easternmost star in the Circlet of Pisces and is it also one of the reddest to be seen in the night sky.
Saturn and Neptune – Focus on Saturn, try and minimise the planet’s colour fringing. Titan can be seen about an arcminute from Saturn. To the right of Saturn and slightly above is Neptune which will be 4° west of 10 Ceti.
Asteroid 4 Vesta – At the beginning of the month Vesta will be in line with a pair of 5th mag. Stars. As it nears opposition on the 13th it will have travelled about 7° towards 25 Ceti.
Deep Sky Objects
NGC 40 (the Bow-Tie Nebula) – RA 00h 13m 00s, Dec +72° 31’ 18” – a planetary nebula located in the eastern part of Cepheus, close to Cassiopeia. It can be seen using a 100mm scope and will show a circular, grey glow just under 1 arcminute across along with the central star, but a 200mm scope may hint at the structure that gives it its name, and a 300mm scope will show the nebula’s brighter southeastern edge.
NGC 281 (the Pacman Nebula) – RA 00h 52m 59s, Dec +56° 37’ 18” – this is an HII ionized region in Cassiopeia. A 150mm scope will show a faint glow with a low surface brightness and appears approximately 12 arcminutes across with four embedded stars within. With a 120x magnification, it will be possible to see the central star as a close triple. Larger scopes will show the emission nebula appear to be broken into separate areas. In dark skies, and using a nebular filter, it may be possible to see the structure.
NGC 457 (the Owl Cluster) – RA 01h 19m 32s, Dec +58° 17‘ 26“ – this is an open cluster in Cassiopeia. A 150mm scope will be more than 40 stars in a 15 arcminute circle, and 100 stars can be seen using a 200mm scope. This nebula also has the name The ET Cluster due to the line of stars forming a right angle to the main rectangular block which can be visualised as the outstretched arms of an alien, with the Phi and HIP 6229 its eyes.
NGC 488 – RA 01h 21m 47s, Dec +05° 15’ 24” – a face-on spiral galax in Pisces. A 80mm telescope will show it as a smudge of nebulosity, so it is best seen using a scope of 500mm or more.
NGC 660 – RA 01h 43m 01s, Dec +13° 38’ 42” – a peculiar spiral galaxy in Pisces, belonging to a rare class called polar-ring galaxies, and exhibits an outer orbital ring, a belt of gas and stars that rotates over its poles. A 150mm scope will show it as an oval glow.
NGC 474 – RA 01h 20m 07s, Dec +03° 24’ 55” – a lenticular galaxy in Pisces 250,000 light years across. Best seen using telescopes 400mm or larger.
NGC 7789 (Caroline’s Rose) – RA 23h 57m 24s, Dec +56° 42’ 29” – an open cluster in the constellation of Cassiopeia, with an apparent diameter of 16 arcminutes. This cluster is about 1.6 billion years old and 16 arcminutes across. A 150mm scope will show about 50 stars, whilst a 250mm scope will resolve about 150 stars.
M74 (NGC 628) – RA 01h 36m 42s, Dec +15°, 47‘ 01“ – a spiral galaxy in Pisces. A 200mm scope will show its unresolved spiral arms as a misty halo, and a 300mm scope will show some unevenly bright patches.
IC 1805 – RA 02h 32m 41s, Dec +61° 27‘ 24“ – this is a star cluster + nebula in Cassiopeia and forms the large Heart Nebula. A 150mm scope will show around 25 stars surrounded by a haze; a 250mm scope will show the main group better, along with many fainter stars shimmering in the background.
Moon Image Credit: Steve Broadbent
Saturn Image Credit: NASA
What's on after the next 6 months...
| Friday, 14th May 2027 |
Interstellar Comets A talk by Nick James, BAA Comet Section Director Clanfield Memorial Hall - start time 8:00pm |
More details... |
| Friday, 11th June 2027 |
Volcanoes of the Solar System A talk by Diana Challis Clanfield Memorial Hall - start time 8:00pm |
More details... |
| Friday, 9th July 2027 |
TBA A talk by TBA Clanfield Memorial Hall - start time 8:00pm |
More details... |




