1.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 4°43'. Tue, 09 Apr 2019 at 02:39 EDT (1,845 days ago) in Taurus

2.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Tue, 09 Apr 2019 at 04:49 EDT (1,845 days ago) in Taurus

3.

Supernova SN2019dfa discovered A new supernova has been discovered in IC 582. Tue, 09 Apr 2019 (1,844 days ago)

4.

Conjunction of Venus and Neptune Venus and Neptune share the same right ascension, at a separation of 18'. Tue, 09 Apr 2019 at 23:46 EDT (1,845 days ago) in Aquarius

5.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Wed, 10 Apr 2019 at 03:53 EDT (1,844 days ago) in Aquarius

6.

Jupiter enters retrograde motion Jupiter reverses its direction of motion across the sky. Wed, 10 Apr 2019 at 12:52 EDT (1,844 days ago) in Ophiuchus

7.

Mercury at greatest elongation west Mercury is bright and well placed in the dawn sky. Thu, 11 Apr 2019 at 11:45 EDT (1,843 days ago) in Aquarius

8.

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. Fri, 12 Apr 2019 at 15:06 EDT (1,842 days ago) in Gemini

9.

Mercury at dichotomy Mercury reaches half phase in the dawn sky. Fri, 12 Apr 2019 at 21:22 EDT (1,842 days ago) in Aquarius

10.

Close approach of the Moon and M44 The Moon and M44 pass close to each other. Sat, 13 Apr 2019 at 16:46 EDT (1,841 days ago) in Cancer

11.

Centaurus A is well placed Centaurus A (NGC 5128; mag 7.0) culminates at around midnight local time. Sat, 13 Apr 2019 (1,841 days ago) in Centaurus

12.

136199 Eris at solar conjunction 136199 Eris is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Sat, 13 Apr 2019 at 23:06 EDT (1,841 days ago) in Cetus

13.

Omega Centauri is well placed The brightest globular cluster in the sky, Omega Centauri (mag 3.6) culminates at around midnight local time. Sun, 14 Apr 2019 (1,840 days ago) in Centaurus

14.

The Whirlpool Galaxy is well placed The Whirlpool Galaxy M51 (NGC 5194; mag 8.4) in Canes Venatici culminates at around midnight local time. Sun, 14 Apr 2019 (1,840 days ago) in Canes Venatici

15.

136108 Haumea at opposition 136108 Haumea lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Tue, 16 Apr 2019 at 04:18 EDT (1,838 days ago) in Bootes

16.

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. Tue, 16 Apr 2019 at 18:04 EDT (1,838 days ago) in Leo

17.

Messier 83 is well placed The Southern Pinwheel Galaxy M83 (NGC 5236; mag 7.2), a face-on spiral galaxy in Hydra culminates at around midnight local time. Tue, 16 Apr 2019 (1,838 days ago) in Hydra

18.

Venus at aphelion Venus passes the furthest point along its orbit from the Sun. Wed, 17 Apr 2019 at 22:25 EDT (1,837 days ago) in Pisces

19.

Messier 3 is well placed The globular cluster M3 (NGC 5272; mag 6.3) in Canes Venatici culminates at around midnight local time. Thu, 18 Apr 2019 (1,836 days ago) in Canes Venatici

20.

Full Moon The Moon reaches full phase and is visible for much of the night. Fri, 19 Apr 2019 at 07:12 EDT (1,835 days ago) in Virgo