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Could aliens discover Earth ?
In July 2015, NASA announced that its Kepler space telescope had discovered an Earth-like exoplanet, Kepler 452b; Earth-like because it was in the habitable zone around its star, not too…
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Astro Hacks: Luminous Tape
How many times have you been out observing or imaging under a dark night sky and said something like “Now where did I put down that pesky red-light torch?” Or…
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Star charts
Getting to grips with star charts: by a novice for novices Venus and Jupiter are unmissable and unforgettable sights in the night sky when they are in the right part…
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All about the Aldershot Observatory
The observatory, a red circular brick building with a hemispherical dome, has stood for many years as a listed building in the centre of Aldershot army garrison, home to the…
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Variable Stars: Rho Cas
Rho Cas Observing Notes 2007-2009 For about 2 years I observed the Semi-regular variable star Rho Cassiopeia. Semi-regular variables have a rough period and rough range, but both these can…
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Variable Stars: U Orionis
U Orionis Observing Notes 2007-2009 The British Astronomical Association made U Orionis, a long-period variable or “Mira” star, its variable star of year for 2008. This star varies over a…
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The “Distance Ladder”
Measuring Distances – the “Distance Ladder” A question we are often asked when we display the wonderful images taken by our members is ‘how far is away is that galaxy”.…
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Hercules
The Constellation of Hercules Image credit : Torsten Bronger CC BY-SA3.0 Published in seasky.org The constellation of Hercules, named after the Roman mythological hero adapted from the Greek hero Heracles,…
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Pegasus
In early Autumn the night sky is dominated by the constellation of Pegasus with the famous Square of Pegasus providing an easily identifiable landmark. Image credit : Torsten Bronger CC…
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Astro Hacks: DIY Tube Ring Marker
I’m sure that many of you will have come across the same frustration that I used to have – I’d set up my ’scope (a 6” Fullerscope newtonian) for my…