81.

Mercury at highest altitude in morning sky Mercury is bright and well placed in the dawn sky. Thu, 28 Dec 2017 (2,314 days ago) in Ophiuchus

82.

The Rosette Nebula is well placed The Rosette Nebula (C49; mag 9.0) in Monoceros culminates at around midnight local time. Fri, 29 Dec 2017 (2,314 days ago) in Monoceros

83.

Close approach of the Moon and Collinder 50 The Moon and Collinder 50 pass close to each other. Sat, 30 Dec 2017 at 16:03 EDT (2,313 days ago) in Taurus

84.

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 (2,313 days ago) in Taurus

85.

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 (2,311 days ago) in Gemini

86.

Mercury at greatest elongation west Mercury is bright and well placed in the dawn sky. Mon, 01 Jan 2018 at 19:51 EDT (2,311 days ago) in Ophiuchus

87.

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 (2,311 days ago) in Gemini

88.

Full Moon The Moon reaches full phase and is visible for much of the night. Mon, 01 Jan 2018 at 21:24 EDT (2,311 days ago) in Gemini

89.

Uranus ends retrograde motion Uranus returns to its usual eastward motion after opposition. Tue, 02 Jan 2018 at 10:24 EDT (2,310 days ago) in Pisces

90.

Asteroid 8 Flora at opposition Asteroid 8 Flora makes closest approach to the Earth. Tue, 02 Jan 2018 at 14:10 EDT (2,310 days ago) in Gemini

91.

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 (2,310 days ago) in Canis Major

92.

The Earth at perihelion The Earth reaches its closest point to the Sun. Wed, 03 Jan 2018 at 00:34 EDT (2,309 days ago) in Pisces

93.

Quadrantid meteor shower 2018 The Quadrantid meteor shower reaches its peak. Wed, 03 Jan 2018 (2,309 days ago) in Bootes

94.

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 (2,307 days ago) in Leo

95.

Close approach of Jupiter and Mars Jupiter and Mars pass within 12' of each other. Sat, 06 Jan 2018 at 19:27 EDT (2,306 days ago) in Libra

96.

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 (2,306 days ago) in Libra

97.

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 (2,304 days ago) in Virgo

98.

Venus at superior solar conjunction Venus passes around the far side of the Sun. Tue, 09 Jan 2018 at 02:36 EDT (2,303 days ago) in Sagittarius

99.

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 (2,303 days ago) in Sagittarius

100.

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 (2,301 days ago) in Libra