141.

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, 10 Sep 2019 at 03:15 EDT (1,697 days ago) in Aquarius

142.

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. Wed, 11 Sep 2019 at 06:15 EDT (1,696 days ago) in Capricornus

143.

Comet 260P/McNaught passes perihelion Comet 260P/McNaught makes its closest approach to the Sun. Wed, 11 Sep 2019 (1,696 days ago) in Aries

144.

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. Fri, 13 Sep 2019 at 09:32 EDT (1,694 days ago) in Aquarius

145.

Full Moon The Moon reaches full phase and is visible for much of the night. Sat, 14 Sep 2019 at 00:32 EDT (1,693 days ago) in Aquarius

146.

Saturn ends retrograde motion Saturn returns to its usual eastward motion after opposition. Wed, 18 Sep 2019 at 04:25 EDT (1,689 days ago) in Sagittarius

147.

Moon at Last Quarter The Moon reaches last quarter phase – rising in the east at around midnight and appearing high in the sky by sunrise. Sat, 21 Sep 2019 at 22:41 EDT (1,686 days ago) in Orion

148.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Mon, 23 Sep 2019 at 03:43 EDT (1,684 days ago) in Virgo

149.

Close approach of the Moon and M44 The Moon and M44 pass close to each other. Tue, 24 Sep 2019 at 18:00 EDT (1,683 days ago) in Cancer

150.

NGC 55 is well placed NGC 55 (mag 8.2), a barred irregular galaxy in Sculptor culminates at around midnight local time. Wed, 25 Sep 2019 (1,682 days ago) in Sculptor

151.

Comet C/2018 W2 (Africano) reaches peak brightness Comet C/2018 W2 (Africano) is forecast to reach the brightest point in its 2019 apparition. Thu, 26 Sep 2019 (1,681 days ago) in Pegasus

152.

Comet C/2018 W2 (Africano) passes perigee Comet C/2018 W2 (Africano) makes its closest approach to the Earth. Fri, 27 Sep 2019 (1,680 days ago) in Pegasus

153.

Daytime Sextantid meteor shower 2019 The Daytime Sextantid meteor shower reaches its peak. Fri, 27 Sep 2019 (1,680 days ago) in Sextans

154.

Asteroid 21 Lutetia at opposition Asteroid 21 Lutetia makes closest approach to the Earth. Fri, 27 Sep 2019 at 19:58 EDT (1,680 days ago) in Pisces

155.

47 Tuc is well placed The second brightest globular cluster in the sky, 47 Tuc (NGC 104; mag 4.0), in Tucana culminates at around midnight local time. Fri, 27 Sep 2019 (1,680 days ago) in Tucana

156.

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. Fri, 27 Sep 2019 at 22:23 EDT (1,680 days ago) in Virgo

157.

New Moon The Moon disappears into the Sun's glare for a few days. Sat, 28 Sep 2019 at 14:27 EDT (1,679 days ago) in Virgo

158.

136472 Makemake at solar conjunction 136472 Makemake is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Sat, 28 Sep 2019 at 22:12 EDT (1,679 days ago) in Coma Berenices

159.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 6°14'. Sun, 29 Sep 2019 at 18:01 EDT (1,678 days ago) in Virgo

160.

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, 01 Oct 2019 at 00:12 EDT (1,676 days ago) in Libra