241.

Lunar occultation of Aldebaran The Moon will pass in front of Aldebaran (Alpha Tauri), creating a lunar occultation visible from countries and territories including Canada, Greenland, the Contiguous United States and Russia amongst others. Sat, 30 Dec 2017 at 19:35 EDT (2,331 days ago) in Taurus

242.

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. Mon, 01 Jan 2018 at 16:48 EDT (2,329 days ago) in Gemini

243.

Mercury at greatest elongation west Mercury is bright and well placed in the dawn sky. Mon, 01 Jan 2018 at 19:51 EDT (2,329 days ago) in Ophiuchus

244.

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. Mon, 01 Jan 2018 at 20:55 EDT (2,329 days ago) in Gemini

245.

Full Moon The Moon reaches full phase and is visible for much of the night. Mon, 01 Jan 2018 at 21:24 EDT (2,329 days ago) in Gemini

246.

Uranus ends retrograde motion Uranus returns to its usual eastward motion after opposition. Tue, 02 Jan 2018 at 10:24 EDT (2,328 days ago) in Pisces

247.

Asteroid 8 Flora at opposition Asteroid 8 Flora makes closest approach to the Earth. Tue, 02 Jan 2018 at 14:10 EDT (2,328 days ago) in Gemini

248.

The cluster Messier 41 is well placed The open star cluster M41 (NGC 2287; mag 4.5) in Canis Major culminates at around midnight local time. Tue, 02 Jan 2018 (2,328 days ago) in Canis Major

249.

The Earth at perihelion The Earth reaches its closest point to the Sun. Wed, 03 Jan 2018 at 00:34 EDT (2,327 days ago) in Pisces

250.

Quadrantid meteor shower 2018 The Quadrantid meteor shower reaches its peak. Wed, 03 Jan 2018 (2,327 days ago) in Bootes

251.

Lunar occultation of Regulus The Moon will pass in front of Regulus (Alpha Leonis), creating a lunar occultation visible from countries and territories including Canada, Greenland, Alaska and Svalbard amongst others. Fri, 05 Jan 2018 at 03:11 EDT (2,325 days ago) in Leo

252.

Close approach of Jupiter and Mars Jupiter and Mars pass within 12' of each other. Sat, 06 Jan 2018 at 19:27 EDT (2,324 days ago) in Libra

253.

Conjunction of Jupiter and Mars Jupiter and Mars share the same right ascension, at a separation of 12'. Sat, 06 Jan 2018 at 22:40 EDT (2,324 days ago) in Libra

254.

Moon at Last Quarter The Moon reaches last quarter phase – rising in the east at around midnight and appearing high in the sky by sunrise. Mon, 08 Jan 2018 at 17:25 EDT (2,322 days ago) in Virgo

255.

Venus at superior solar conjunction Venus passes around the far side of the Sun. Tue, 09 Jan 2018 at 02:36 EDT (2,321 days ago) in Sagittarius

256.

134340 Pluto at solar conjunction 134340 Pluto is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Tue, 09 Jan 2018 at 10:58 EDT (2,321 days ago) in Sagittarius

257.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 4°20'. Thu, 11 Jan 2018 at 00:57 EDT (2,319 days ago) in Libra

258.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Thu, 11 Jan 2018 at 03:24 EDT (2,319 days ago) in Libra

259.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 4°33'. Thu, 11 Jan 2018 at 05:02 EDT (2,319 days ago) in Libra

260.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Thu, 11 Jan 2018 at 07:39 EDT (2,319 days ago) in Libra