Atmospheric Refraction
David discusses the way light is bent in the atmosphere.
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Archives
Observer’s Challenge – Mercury at greatest eastern elongation
The orbit of planet Mercury’s lies closer to the Sun than the Earth is, meaning that it always appears close
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The Barlow lens
A close look at the workings of this popular accessory.
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Asteroid with shortest orbital period discovered Jan 3
2019 AQ3 – The fastest orbiting asteroid
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BAA Weekend Meeting, Christchurch, Dorset: 2018 September 7–9
The 2018 Autumn weekend meeting was held on September 7−9 at Christchurch Junior School, Christchurch, Dorset. The Wessex Astronomical Society
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Eridanus: winter nights on the river
Overlooked in favour of the brilliant hunter Orion and his retinue of winter constellations – so choc-a-bloc of deep sky
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