1.

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 (922 days ago) in Capricornus

2.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Thu, 14 Oct 2021 at 04:37 EDT (922 days ago) in Capricornus

3.

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 (921 days ago) in Capricornus

4.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Fri, 15 Oct 2021 at 08:21 EDT (921 days ago) in Capricornus

5.

The Triangulum Galaxy is well placed The Triangulum Galaxy M33 (mag 5.8) culminates at around midnight local time. Fri, 15 Oct 2021 (921 days ago) in Triangulum

6.

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 (919 days ago) in Cetus

7.

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 (919 days ago) in Aquarius

8.

Jupiter ends retrograde motion Jupiter returns to its usual eastward motion after opposition. Mon, 18 Oct 2021 at 01:13 EDT (918 days ago) in Capricornus

9.

ε-Geminid meteor shower 2021 The ε-Geminid meteor shower reaches its peak. Mon, 18 Oct 2021 (918 days ago) in Gemini

10.

Mercury at perihelion Mercury passes its orbit's closest point to the Sun. Tue, 19 Oct 2021 at 19:51 EDT (917 days ago) in Virgo

11.

Full Moon The Moon reaches full phase and is visible for much of the night. Wed, 20 Oct 2021 at 10:56 EDT (916 days ago) in Pisces

12.

Orionid meteor shower 2021 The Orionid meteor shower reaches its peak. Thu, 21 Oct 2021 (915 days ago) in Orion

13.

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 (915 days ago) in Bootes

14.

Close approach of the Moon and Uranus The Moon and Uranus pass close to each other. Thu, 21 Oct 2021 at 18:39 EDT (915 days ago) in Aries

15.

Mercury at dichotomy Mercury reaches half phase in the dawn sky. Sat, 23 Oct 2021 at 18:40 EDT (913 days ago) in Virgo

16.

Leonis Minorid meteor shower 2021 The Leonis Minorid meteor shower reaches its peak. Sun, 24 Oct 2021 (912 days ago) in Leo Minor

17.

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 (912 days ago) in Taurus

18.

Mercury at highest altitude in morning sky Mercury is bright and well placed in the dawn sky. Sun, 24 Oct 2021 (911 days ago) in Virgo

19.

Mercury at greatest elongation west Mercury is bright and well placed in the dawn sky. Sun, 24 Oct 2021 at 23:45 EDT (912 days ago) in Virgo

20.

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 (910 days ago) in Perseus