161.

September ε-Perseid meteor shower 2021 The September ε-Perseid meteor shower reaches its peak. Thu, 09 Sep 2021 (959 days ago) in Perseus

162.

Comet 4P/Faye passes perihelion Comet 4P/Faye makes its closest approach to the Sun. Thu, 09 Sep 2021 (959 days ago) in Taurus

163.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 4°04'. Thu, 09 Sep 2021 at 22:08 EDT (959 days ago) in Virgo

164.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Fri, 10 Sep 2021 at 01:17 EDT (958 days ago) in Virgo

165.

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. Sat, 11 Sep 2021 at 06:03 EDT (957 days ago) in Libra

166.

Asteroid 2 Pallas at opposition Asteroid 2 Pallas makes closest approach to the Earth. Sat, 11 Sep 2021 at 07:58 EDT (957 days ago) in Pisces

167.

Lunar occultation of Beta1 Scorpii The Moon will pass in front of Beta1 Scorpii (Acrab), creating a lunar occultation visible from Antarctica. Sun, 12 Sep 2021 at 10:20 EDT (956 days ago) in Scorpius

168.

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, 13 Sep 2021 at 16:39 EDT (955 days ago) in Ophiuchus

169.

Mercury at greatest elongation east Mercury is bright and well placed in the evening sky. Mon, 13 Sep 2021 at 17:55 EDT (955 days ago) in Virgo

170.

Neptune at opposition Neptune lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Tue, 14 Sep 2021 at 05:12 EDT (954 days ago) in Aquarius

171.

Lunar occultation of Sigma Sagittarii The Moon will pass in front of Sigma Sagittarii (Nunki), creating a lunar occultation visible from countries and territories including Australia, Papua New Guinea, Indonesia and Solomon Islands amongst others. Wed, 15 Sep 2021 at 05:23 EDT (953 days ago) in Sagittarius

172.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 3°45'. Thu, 16 Sep 2021 at 22:33 EDT (952 days ago) in Capricornus

173.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Thu, 16 Sep 2021 at 23:57 EDT (952 days ago) in Capricornus

174.

Mercury at dichotomy Mercury reaches half phase in the evening sky. Fri, 17 Sep 2021 at 22:57 EDT (951 days ago) in Virgo

175.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 3°57'. Sat, 18 Sep 2021 at 02:54 EDT (950 days ago) in Capricornus

176.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Sat, 18 Sep 2021 at 05:07 EDT (950 days ago) in Capricornus

177.

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. Sat, 18 Sep 2021 at 12:44 EDT (950 days ago) in Aquarius

178.

Mars at apogee Mars reaches its furthest point from the Earth, as it passes around the far side of the Sun. Mon, 20 Sep 2021 at 07:33 EDT (948 days ago) in Virgo

179.

Full Moon The Moon reaches full phase and is visible for much of the night. Mon, 20 Sep 2021 at 19:54 EDT (948 days ago) in Pisces

180.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Wed, 22 Sep 2021 at 15:14 EDT (946 days ago) in Virgo