121.

Daytime Sextantid meteor shower The Daytime Sextantid meteor shower reaches its peak. Thu, 27 Sep 2018 (550 days ago) in Sextans

122.

Venus at greatest brightness Venus reaches its greatest brightness in the evening sky. Tue, 25 Sep 2018 at 00:16 EDT (552 days ago) in Virgo

123.

Full Moon The Moon is visible for much of the night. Mon, 24 Sep 2018 at 22:53 EDT (553 days ago) in Pisces

124.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Sat, 22 Sep 2018 at 21:39 EDT (555 days ago) in Virgo

125.

The Moon at aphelion The Moon reaches its furthest point from the Sun. Fri, 21 Sep 2018 at 20:56 EDT (556 days ago) in Capricornus

126.

Mercury at superior solar conjunction Mercury passes around the far side of the Sun. Thu, 20 Sep 2018 at 21:36 EDT (557 days ago) in Virgo

127.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 4°46'. Thu, 20 Sep 2018 at 02:40 EDT (557 days ago) in Capricornus

128.

Close approach of the Moon and Mars The Moon and Mars pass within 4°43' of each other. Thu, 20 Sep 2018 at 01:20 EDT (557 days ago) in Capricornus

129.

The Moon at apogee The Moon appears small as it recedes to its furthest point from the Earth. Wed, 19 Sep 2018 at 20:53 EDT (558 days ago) in Capricornus

130.

Asteroid 30 Urania at opposition Asteroid 30 Urania is well placed for observation. Tue, 18 Sep 2018 at 22:22 EDT (559 days ago) in Pisces

131.

Close approach of the Moon and Saturn The Moon and Saturn pass within 2°03' of each other. Mon, 17 Sep 2018 at 12:44 EDT (560 days ago) in Sagittarius

132.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 2°03'. Mon, 17 Sep 2018 at 12:29 EDT (560 days ago) in Sagittarius

133.

Moon at First Quarter The Moon appears high in the sky at sunset and sets in the west at around midnight. Sun, 16 Sep 2018 at 19:15 EDT (561 days ago) in Ophiuchus

134.

Mars at perihelion Mars reaches its closest point to the Sun. Sun, 16 Sep 2018 at 08:52 EDT (561 days ago) in Capricornus

135.

Close approach of the Moon and Jupiter The Moon and Jupiter pass within 4°10' of each other. Fri, 14 Sep 2018 at 00:44 EDT (563 days ago) in Libra

136.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 4°22'. Thu, 13 Sep 2018 at 22:20 EDT (564 days ago) in Libra

137.

The Moon at perihelion The Moon reaches its closest point to the Sun. Tue, 11 Sep 2018 at 22:12 EDT (566 days ago) in Virgo

138.

21P/Giacobini-Zinner at perihelion 21P/Giacobini-Zinner makes its closest approach to the Sun. Mon, 10 Sep 2018 (567 days ago) in Auriga

139.

21P/Giacobini-Zinner reaches its brightest 21P/Giacobini-Zinner is well placed for observation. Mon, 10 Sep 2018 (567 days ago) in Auriga

140.

New Moon The Moon disappears into the Sun's glare. Sun, 09 Sep 2018 at 14:02 EDT (568 days ago) in Leo