Observing

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  See prime-time Neptune’s close encounter with star φ Aquarii during September

  1 September 2019

  Neptune reaches opposition on 10 September 2019 having returned to Aquarius, the constellation in which it was discovered in 1846. We show you how to locate the outermost planet using binoculars, a task made easier this month due to Neptune’s close passage to naked-eye star phi (φ) Aquarii on 6 September.

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  Watch the crescent Moon graze a double star at dawn on 27 August

  26 August 2019

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  See the Moon hide a trio of Hyades stars at dawn on 24 August

  20 August 2019