1.

Mercury at superior solar conjunction Mercury passes around the far side of the Sun. Fri, 10 Jan 2020 at 10:32 EDT (1,570 days ago) in Sagittarius

2.

Penumbral lunar eclipse There will be an eclipse of the Moon, visible from Asia, Russia, Africa, Europe, Oceania, Greenland, north-eastern Canada and Alaska. Fri, 10 Jan 2020 at 14:10 EDT (1,570 days ago) in Gemini

3.

Full Moon The Moon reaches full phase and is visible for much of the night. Fri, 10 Jan 2020 at 14:21 EDT (1,570 days ago) in Gemini

4.

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. Fri, 10 Jan 2020 at 16:08 EDT (1,570 days ago) in Gemini

5.

Uranus ends retrograde motion Uranus returns to its usual eastward motion after opposition. Fri, 10 Jan 2020 at 21:53 EDT (1,570 days ago) in Aries

6.

Supernova SN2020ue discovered A new supernova has been discovered in NGC 4636. Sat, 11 Jan 2020 (1,568 days ago)

7.

Close approach of the Moon and M44 The Moon and M44 pass close to each other. Sat, 11 Jan 2020 at 19:50 EDT (1,569 days ago) in Cancer

8.

Saturn at solar conjunction Saturn is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Mon, 13 Jan 2020 at 10:06 EDT (1,567 days ago) in Sagittarius

9.

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. Mon, 13 Jan 2020 at 15:18 EDT (1,567 days ago) in Sagittarius

10.

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, 13 Jan 2020 at 15:21 EDT (1,567 days ago) in Leo

11.

1 Ceres at solar conjunction 1 Ceres 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, 14 Jan 2020 at 00:44 EDT (1,566 days ago) in Sagittarius

12.

Asteroid 511 Davida at opposition Asteroid 511 Davida makes closest approach to the Earth. Tue, 14 Jan 2020 at 21:22 EDT (1,566 days ago) in Gemini

13.

The cluster Messier 47 is well placed The open star cluster M47 (NGC 2422; mag 4.4) in Puppis culminates at around midnight local time. Wed, 15 Jan 2020 (1,565 days ago) in Puppis

14.

NGC 2403 is well placed NGC 2403 (mag 8.9), a spiral galaxy in Camelopardalis culminates at around midnight local time. Wed, 15 Jan 2020 (1,565 days ago) in Camelopardalis

15.

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. Fri, 17 Jan 2020 at 07:59 EDT (1,563 days ago) in Virgo

16.

The cluster NGC 2451 is well placed The open star cluster NGC 2451 (mag 2.8) in Puppis culminates at around midnight local time. Fri, 17 Jan 2020 (1,563 days ago) in Puppis

17.

Supernova SN2020afp discovered A new supernova has been discovered in IC 3900. Fri, 17 Jan 2020 (1,562 days ago)

18.

γ-Ursae Minorid meteor shower 2020 The γ-Ursae Minorid meteor shower reaches its peak. Sun, 19 Jan 2020 (1,561 days ago) in Ursa Minor

19.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 2°15'. Mon, 20 Jan 2020 at 14:11 EDT (1,560 days ago) in Ophiuchus

20.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Mon, 20 Jan 2020 at 15:08 EDT (1,560 days ago) in Ophiuchus