Deep Sky Challenge – Astronomy Now

11 June 2026

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Five deep-sky challenges for spring

11 April 2023 Mark Armstrong

Local Group member Leo 1 is a dwarf spheroidal galaxy that’s a distant satellite of our own Milky Way Galaxy. It’s one of a number of observing challenges that Leo offers up, though it presents unique difficulties.

Deep sky challenge: Skull Nebula

9 October 2014 Owen Brazell

Discovered by William Herschel in 1785, NGC 246 is a large planetary nebula in a star-poor area of Cetus. It must have been quite challenging for him to find as he often used high powers and small fields when searching for nebulae.