Photons from the Devonian
The easiest Blazar is well placed now
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Fireball on Jupiter
Amateur videos have detected a bright explosion on Jupiter – the first for 4 years.
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Observing the Transit of Mercury, 2016 May 9
On 2016 May 9, Mercury will pass in front of the Sun, casting a small black silhouette in front of the solar disk.
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M67 the other open cluster in Cancer
A crab and two clusters
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The spring sky
Brian Mills takes a look at the sky in April and May
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Right ascention and declination
Paul explains how to navigate around the celestial sphere
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Fireball over Southern England on 2016 March 17
Several meteor observers have reported seeing a spectacular fireball at 3:16 UTC on 2016 March 17.
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Two million visual observations in the Variable Star Section Database
On 2016 March 17 the two-millionth visual observation was added to the Variable Star Section’s online database.
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Jupiter’s moons in front of their shadows
Images of the double transit at opposition have been posted.
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A galaxy challenge in Leo
Easy to find but difficult to see
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