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Blackett Observatory Dome
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SpaceWeather | More weather... Coordinates: 51.25.25 N and 1.44.24 W
Marlborough College
Oxford Astrophysics
Green Templeton College

Summer School week 3: Dome visit on Tuesday 29th. Details and sign-up list in SS office.


NASA Astronomy Picture of the Day
Cosmic Crab Nebula

What's Up - 21st July

  • The nights are now getting longer and Astronomical Twighlight now ends again for about an hour at 0046 BST at the strt of the week and 0006 BST at the end

  • The Moon is waning and will be New on Saturday

  • The Sun is extremely quiet and indeed has recently had no sunspots at all

  • There are no ISS passes this week

  • There are three bright evening Iridium flares; on Wednesday at 22.57.07 at 34 degrees altitude in NE, Friday at 21.10.14 at 70 degrees in ENE and Saturday at 21.04.12, 71 degrees altitude in ENE

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Random Blackett Image
Past Events - Solar Weather Summer School - July 2006

News - 24th July

Summer School week 2: Some 35 guests joined CEB and JAG at the Dome on perhaps the warmest night in memory, even at 11.30pm. Scattered cloud interupted viewing but Mars was seen in the 10 inch with the ice-cap making one hemisphere brighter and the Saturn was viewed with Titan and one other moon fairly easily seen. The viewing was not ideal given the twilight and the warmth and hence poor Seeing. Several satellites were seen and the Milky Way was faintly visible

21st June

Solstice observing: A small group of Friends and College staff gathered late on a superbly clear and warm evening. Though some whispy cloud closed in, the string of targets in the South afforded some firsts for those assembled. Mars was very bright and clearly showed it gibbous phase with 15 percent or so missing and clearly not spherical. A hint of dark features could also be believed in the top hemisphere. Saturn was very clear and showed some banding. The Cassini Division was clear and with Titan bright on one, side as the sky darkened, 4 more moons became visible. Rhea and Dione near the planet and harder to see Tethys and much further away from the planet Iapetus onthe opposire side to Titan. Vesta was viewed and, though only 1" arc, could be resolved as a disc. Ceres, though larger in actual diameter as the closest Dwarf Planets, is further and nearly 3 times dimmer and was barely resolved, though its image was steady and not starlike

15th May

Solar open day: A small group including an OM and family and some staff and family and Friends of the telescope attended the Dome and in, sunny pathces, were able to view the Sun through solar goggles, the solar scope (which showed 8 sunspot groups) and then in H-alpha using the 10 inch which showed a number of large quiescent prominences. The disc itself showed fine detail and large disturbed regions (light coloured plages) around spot 2060

6th May

Prep School evening: CEB held a Q&A evening 'To infinity and Beyond' for 60 scholarship form pupils at Windlesham House School in West Sussex

3rd April

Sun-Earth Day lecture: CEB gave the 12th S-E day lecture 'Close Encounters-Misunderstanding Comets' to a small audience of Friends and visitors

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