Noctilucent Cloud and What to Look For
Get ready for the new NLC season
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Observer’s Challenge – Finding Einstein
Date: Early morning 2019 May 3rd & 4th, and again early morning 2019 June 1st & 2nd The crater Einstein is
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Campaign to observe the old nova HR Lyr
Help the Variable Star Section observe this old nova 100 years after its discovery
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Observer’s Challenge – Occultation of M44 the Beehive Cluster by the Moon
Date: 2019 April 13thStart Time: 2000 UT (2100 BST) to 2300 UT (Midnight BST) On 2019 April 13th, a 62%
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Filters for visual observations of deep sky objects
Owen describes the development of deep sky filters, how they work and how to use them
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Observer’s Challenge – Two bright asteroids at opposition
Try tracking two bright asteroids close to opposition
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Observer’s Challenge – M81 and M82
Stewart sets us a challenge to observe M81 and M82
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Atmospheric Refraction
David discusses the way light is bent in the atmosphere.
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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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