1.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Mon, 20 Nov 2023 at 07:58 PDT (600 days ago) in Aquarius

2.

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. Mon, 20 Nov 2023 at 07:19 PDT (600 days ago) in Libra

3.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 2°43'. Mon, 20 Nov 2023 at 06:06 PDT (600 days ago) in Aquarius

4.

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. Mon, 20 Nov 2023 at 02:50 PDT (600 days ago) in Aquarius

5.

The Pleiades cluster is well placed The Pleiades open star cluster (M45; mag 1.3) in Taurus culminates at around midnight local time. Sat, 18 Nov 2023 (602 days ago) in Taurus

6.

Leonid meteor shower 2023 The Leonid meteor shower reaches its peak. Fri, 17 Nov 2023 (602 days ago) in Leo

7.

Mars at solar conjunction Mars is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Fri, 17 Nov 2023 at 21:14 PDT (603 days ago) in Libra

8.

The Moon at perihelion The Moon passes its orbit's closest point to the Sun, which happens each month around the time of new moon. Tue, 14 Nov 2023 at 19:37 PDT (606 days ago) in Scorpius

9.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 1°39'. Tue, 14 Nov 2023 at 06:39 PDT (606 days ago) in Scorpius

10.

Uranus at opposition Uranus lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Mon, 13 Nov 2023 at 09:12 PDT (607 days ago) in Aries

11.

New Moon The Moon disappears into the Sun's glare for a few days. Mon, 13 Nov 2023 at 01:28 PDT (607 days ago) in Libra

12.

Northern Taurid meteor shower 2023 The Northern Taurid meteor shower reaches its peak. Sun, 12 Nov 2023 (608 days ago) in Taurus

13.

Comet C/2023 H2 (Lemmon) reaches peak brightness Comet C/2023 H2 (Lemmon) is forecast to reach the brightest point in its 2023 apparition. Fri, 10 Nov 2023 (610 days ago) in Hercules

14.

Comet C/2023 H2 (Lemmon) passes perigee Comet C/2023 H2 (Lemmon) makes its closest approach to the Earth. Fri, 10 Nov 2023 (610 days ago) in Hercules

15.

Lunar occultation of Venus The Moon will pass in front of Venus, creating a lunar occultation visible from Africa, Asia, Europe, Greenland, Russia, Corsica, Guernsey, Svalbard, Menorca, Mallorca, Ibiza, Shetland, Orkney, Northern Ireland and RAF Akrotiri. Thu, 09 Nov 2023 at 02:34 PDT (611 days ago) in Virgo

16.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Thu, 09 Nov 2023 at 02:34 PDT (611 days ago) in Virgo

17.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 1°00'. Thu, 09 Nov 2023 at 01:30 PDT (611 days ago) in Virgo

18.

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. Mon, 06 Nov 2023 at 13:48 PDT (614 days ago) in Leo

19.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Mon, 06 Nov 2023 at 09:40 PDT (614 days ago) in Libra

20.

Asteroid 18 Melpomene at opposition Asteroid 18 Melpomene makes closest approach to the Earth. Sun, 05 Nov 2023 at 08:46 PDT (615 days ago) in Eridanus