221.

Messier 3 is well placed The globular cluster M3 (NGC 5272; mag 6.3) in Canes Venatici culminates at around midnight local time. Tue, 17 Apr 2018 (2,226 days ago) in Canes Venatici

222.

Saturn enters retrograde motion Saturn reverses its direction of motion across the sky. Tue, 17 Apr 2018 at 21:48 EDT (2,226 days ago) in Sagittarius

223.

Uranus at solar conjunction Uranus is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Wed, 18 Apr 2018 at 09:51 EDT (2,225 days ago) in Pisces

224.

Close approach of the Moon and Collinder 50 The Moon and Collinder 50 pass close to each other. Wed, 18 Apr 2018 at 21:09 EDT (2,225 days ago) in Taurus

225.

Lunar occultation of Aldebaran The Moon will pass in front of Aldebaran (Alpha Tauri), creating a lunar occultation visible from Canada and Alaska. Thu, 19 Apr 2018 at 00:51 EDT (2,224 days ago) in Taurus

226.

The Moon at perigee The Moon makes its monthly closest approach to the Earth, making it appear fractionally larger than at other times of the month. Fri, 20 Apr 2018 at 10:41 EDT (2,223 days ago) in Orion

227.

Lyrid meteor shower 2018 The Lyrid meteor shower reaches its peak. Sun, 22 Apr 2018 (2,221 days ago) in Hercules

228.

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. Sun, 22 Apr 2018 at 17:46 EDT (2,221 days ago) in Cancer

229.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Mon, 23 Apr 2018 at 06:51 EDT (2,220 days ago) in Cetus

230.

π-Puppid meteor shower 2018 The π-Puppid meteor shower reaches its peak. Mon, 23 Apr 2018 (2,220 days ago) in Puppis

231.

Messier 101 is well placed The Pinwheel Galaxy M101 (NGC 5457; mag 7.9) in Ursa Major culminates at around midnight local time. Mon, 23 Apr 2018 (2,220 days ago) in Ursa Major

232.

1 Ceres at perihelion 1 Ceres passes its orbit's closest point to the Sun. Tue, 24 Apr 2018 at 11:42 EDT (2,219 days ago) in Cancer

233.

Lunar occultation of Regulus The Moon will pass in front of Regulus (Alpha Leonis), creating a lunar occultation visible from Russia and Kazakhstan. Tue, 24 Apr 2018 at 16:38 EDT (2,219 days ago) in Leo

234.

Conjunction of Mars and Pluto Mars and Pluto share the same right ascension, at a separation of 1°26'. Thu, 26 Apr 2018 at 09:52 EDT (2,217 days ago) in Sagittarius

235.

Mercury at greatest elongation west Mercury is bright and well placed in the dawn sky. Sun, 29 Apr 2018 at 11:15 EDT (2,214 days ago) in Cetus

236.

Full Moon The Moon reaches full phase and is visible for much of the night. Sun, 29 Apr 2018 at 20:58 EDT (2,214 days ago) in Libra

237.

Mercury at highest altitude in morning sky Mercury is bright and well placed in the dawn sky. Mon, 30 Apr 2018 (2,213 days ago) in Cetus

238.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 3°49'. Mon, 30 Apr 2018 at 13:14 EDT (2,213 days ago) in Libra

239.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Mon, 30 Apr 2018 at 15:16 EDT (2,213 days ago) in Libra

240.

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. Wed, 02 May 2018 at 13:53 EDT (2,211 days ago) in Ophiuchus