281.

Mercury at greatest elongation west Mercury is bright and well placed in the dawn sky. Wed, 17 May 2017 at 19:06 EDT (2,618 days ago) in Pisces

282.

Supernova SN2017eaw discovered A new supernova has been discovered in NGC 6946. Sat, 13 May 2017 (2,621 days ago)

283.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Sat, 13 May 2017 at 19:10 EDT (2,622 days ago) in Sagittarius

284.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 3°04'. Sat, 13 May 2017 at 18:45 EDT (2,622 days ago) in Sagittarius

285.

The Moon at aphelion The Moon recedes to its orbit's furthest point from the Sun, which happens each month around the time of full moon. Sat, 13 May 2017 at 02:20 EDT (2,622 days ago) in Ophiuchus

286.

The Moon at apogee The Moon recedes to its orbit's furthest point from the Earth, making it appear fractionally smaller than at other times of the month. Fri, 12 May 2017 at 15:51 EDT (2,623 days ago) in Ophiuchus

287.

Conjunction of Mercury and Eris Mercury and Eris share the same right ascension, at a separation of 9°39'. Fri, 12 May 2017 at 08:56 EDT (2,623 days ago) in Cetus

288.

Messier 5 is well placed The globular cluster M5 (NGC 5904; mag 5.7) in Serpens culminates at around midnight local time. Thu, 11 May 2017 (2,624 days ago) in Serpens Caput

289.

Full Moon The Moon reaches full phase and is visible for much of the night. Wed, 10 May 2017 at 17:42 EDT (2,625 days ago) in Libra

290.

η-Lyrid meteor shower 2017 The η-Lyrid meteor shower reaches its peak. Mon, 08 May 2017 (2,627 days ago) in Lyra

291.

Conjunction of Mercury and Uranus Mercury and Uranus share the same right ascension, at a separation of 2°13'. Sun, 07 May 2017 at 19:19 EDT (2,628 days ago) in Pisces

292.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Sun, 07 May 2017 at 18:45 EDT (2,628 days ago) in Virgo

293.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 2°06'. Sun, 07 May 2017 at 17:25 EDT (2,628 days ago) in Virgo

294.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Sat, 06 May 2017 at 09:49 EDT (2,629 days ago) in Pisces

295.

η-Aquariid meteor shower 2017 The η-Aquariid meteor shower reaches its peak. Fri, 05 May 2017 (2,629 days ago) in Aquarius

296.

Lunar occultation of Regulus The Moon will pass in front of Regulus (Alpha Leonis), creating a lunar occultation visible from countries and territories including Australia, New Zealand, Indonesia and Papua New Guinea amongst others. Thu, 04 May 2017 at 05:58 EDT (2,631 days ago) in Leo

297.

Moon at First Quarter The Moon reaches first quarter phase – appearing high in the sky at sunset and setting in the west at around midnight. Tue, 02 May 2017 at 22:47 EDT (2,633 days ago) in Cancer

298.

Supernova SN2017drh discovered A new supernova has been discovered in NGC 6384. Tue, 02 May 2017 (2,632 days ago)

299.

Conjunction of Mercury and Uranus Mercury and Uranus share the same right ascension, at a separation of 9'09". Fri, 28 Apr 2017 at 13:49 EDT (2,637 days ago) in Pisces

300.

Lunar occultation of Aldebaran The Moon will pass in front of Aldebaran (Alpha Tauri), creating a lunar occultation visible from Africa, Europe, Russia, Turkey, Corsica, Menorca, Mallorca, Ibiza, Isla de Alborán, Melilla and Islas Chafarinas. Fri, 28 Apr 2017 at 13:35 EDT (2,637 days ago) in Taurus