Asteroid 2020 SW making a very close pass of Earth on Sept. 24
Ten-metre-wide asteroid 2020 SW misses Earth by 22,000 kilometres on September 24. At 1:15 UT that morning, see it close to Algenib in the Square of Pegasus.
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Phosphine in the Atmosphere of Venus – life or exotic chemistry?
Phosphine in the Atmosphere of Venus
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See the 11-day-old Moon occult Epsilon Capricorni on 27 September
The entire British Isles can view (weather permitting) this magnitude +4.5 star slide behind the dark lunar limb.
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The old Moon and Venus buzz the Beehive at dawn on 14 September
Start the week with a beautiful dawn conjunction of the old crescent Moon, Venus and the Beehive Cluster, M44.
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Observer’s Challenge – Hunting the moons of Mars
Challenge for October : Hunting for Phobos and Deimos
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How to find Triton, Neptune’s largest moon
Neptune reaches opposition on 11 September 2020. Our Track Triton web app shows you where to find the outermost planet’s largest moon.
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Which side of Mars will I see tonight?
Our interactive Mars Mapper web app helps you identify the Red Planet’s surface features for the 2020-2021 apparition.
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Observer’s Challenge – Re-discovering Pluto
Can you find Pluto
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Exoplanet Transit Imaging and Analysis
Mark Salisbury details how to acquire, analyse and publish data on exoplanet transits
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Finder telescopes
Users of all but the smallest wide-field telescopes will have need for some aid in getting their telescope aligned on
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