1.

The Perseus Double Cluster is well placed The Perseus Double Cluster (NGC 869 and NGC 884; combined mag 4.3) culminates at around midnight local time. Tue, 26 Oct 2021 (912 days ago) in Perseus

2.

Mercury at greatest elongation west Mercury is bright and well placed in the dawn sky. Sun, 24 Oct 2021 at 23:45 EDT (914 days ago) in Virgo

3.

Mercury at highest altitude in morning sky Mercury is bright and well placed in the dawn sky. Sun, 24 Oct 2021 (913 days ago) in Virgo

4.

The Moon at apogee The Moon recedes to its orbit's furthest point from the Earth, making it appear fractionally smaller than at other times of the month. Sun, 24 Oct 2021 at 11:28 EDT (914 days ago) in Taurus

5.

Leonis Minorid meteor shower 2021 The Leonis Minorid meteor shower reaches its peak. Sun, 24 Oct 2021 (914 days ago) in Leo Minor

6.

Mercury at dichotomy Mercury reaches half phase in the dawn sky. Sat, 23 Oct 2021 at 18:40 EDT (915 days ago) in Virgo

7.

Close approach of the Moon and Uranus The Moon and Uranus pass close to each other. Thu, 21 Oct 2021 at 18:39 EDT (917 days ago) in Aries

8.

136108 Haumea at solar conjunction 136108 Haumea is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Thu, 21 Oct 2021 at 18:08 EDT (917 days ago) in Bootes

9.

Orionid meteor shower 2021 The Orionid meteor shower reaches its peak. Thu, 21 Oct 2021 (917 days ago) in Orion

10.

Full Moon The Moon reaches full phase and is visible for much of the night. Wed, 20 Oct 2021 at 10:56 EDT (918 days ago) in Pisces

11.

Mercury at perihelion Mercury passes its orbit's closest point to the Sun. Tue, 19 Oct 2021 at 19:51 EDT (919 days ago) in Virgo

12.

ε-Geminid meteor shower 2021 The ε-Geminid meteor shower reaches its peak. Mon, 18 Oct 2021 (920 days ago) in Gemini

13.

Jupiter ends retrograde motion Jupiter returns to its usual eastward motion after opposition. Mon, 18 Oct 2021 at 01:13 EDT (920 days ago) in Capricornus

14.

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. Sun, 17 Oct 2021 at 21:12 EDT (921 days ago) in Aquarius

15.

136199 Eris at opposition 136199 Eris lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Sun, 17 Oct 2021 at 12:40 EDT (921 days ago) in Cetus

16.

The Triangulum Galaxy is well placed The Triangulum Galaxy M33 (mag 5.8) culminates at around midnight local time. Fri, 15 Oct 2021 (923 days ago) in Triangulum

17.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Fri, 15 Oct 2021 at 08:21 EDT (923 days ago) in Capricornus

18.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 4°08'. Fri, 15 Oct 2021 at 06:02 EDT (923 days ago) in Capricornus

19.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Thu, 14 Oct 2021 at 04:37 EDT (924 days ago) in Capricornus

20.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 3°56'. Thu, 14 Oct 2021 at 03:08 EDT (924 days ago) in Capricornus