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Observatory and Open Nights
Timetable of Open Nights - 2022/2023
Dates Open Time On View Moon State
Dec Primary Dates: Fri 16th, Sat 17th
No Back-up Dates
7:30 pm M13 Globular Cluster, Jupiter, Saturn, Mars
Double Cluster, M42 Orion Nebula, Uranus & Neptune

Moon sets: Fri 00:40(40%), Sat 00:52 (50%)

Christmas & New Year Opening Primary Date: Tue 27th Dec,
Back-up Date: wed 28th Dec
7:30 pm Andromeda Galaxy, M13 & M15 Globular Clusters, Uranus, Neptune, Coathanger OC, Double Cluster & Orion Nebula
Moon Sets: 21:20 (18%)

Back up Date: Moon Sets: 22:44 (28%)

Jan Primary Dates: Fri 13th & Sat 14th
Jan Back-up Dates: Fri 20th, Sat 21st
7:30 pm Jupiter, Mars, Uranus, M31 Andromeda Galaxy
M13 Globular Cluster, Pleiades, Hyades, Orion Nebula
No Moon
Feb Primary Dates: Fri 10th, Sat 11th
Back-up Dates: Fri 17th, Sat 18th
7:30 pm Mars, Uranus, Andromeda Galaxy, M13 Globular Cluster, M45, Orion Nebula, M36, M37, M38, Almach, Beta Monoceros Moon Rise 22:30

Back up Dates: No Moon

March Primary Dates: Fri 17th, Sat 18th
Back-up Dates: Fri 24th, Sat 25th
7:30 pm Andromeda Galaxy, M13 & M92 Globular Clusters, M3, Double Cluster, M42 Orion Nebula, Beehive Cluster No Moon

Back up Date: Fri Moon 10%, sets 22:20

April Primary Dates: Fri 14th, Sat 15th
Back-up Dates: Fri 21st, Sat 22nd
8:30 pm Castor, M35 Open Cluster, M13 Globular Cluster, Leo Triplet, Double Cluster No Moon

Back up Date: Fri Moon 2%, sets 22:13

May Primary Dates: Fri 12th, Sat 13th
None (Too Light)
9:30 pm Mars, Venus, Mizar, Various Galaxies & Double Clusters No Moon

Back up Date: N/a

Map of Rownhams Observatory Map showing location of Observatory, click on image to enlarge.  Map will appear in new tab.
Online Map of Toothill

The club's observatory at Toothill is located in a relatively dark site just outside Southampton, see map below.

It has reopened to the public on the dates to the left.   You will see that weekend sessions are now arranged in pairs, with a "primary" and a "back-up". The primary will take place, weather permitting, but the back-up will only take place if the corresponding primary sessions were both clouded out. Each session is open ended, we stay until we've had enough or the weather closes in.

No need to book, just turn up.

Members admitted free.  Non-members: adults £5,  children free.

Cash payments only, please. No cards

Toilets and free parking are available.

The observatory contains:

  • 14" Meade telescope
  • 8" Meade LX90
  • 6" Celestron Nexstar SE
  • 20 x 80 binoculars
  • Computer with desktop planetarium

The design of the 14" telescope is such that users remain seated, so it is suitable for wheelchair users.


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