1541.

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. Tue, 07 Sep 2027 at 14:31 EDT (1,162 days away) in Scorpius

1542.

September ε-Perseid meteor shower 2027 The September ε-Perseid meteor shower reaches its peak. Thu, 09 Sep 2027 (1,165 days away) in Perseus

1543.

Lunar occultation of Sigma Sagittarii The Moon will pass in front of Sigma Sagittarii (Nunki), creating a lunar occultation visible from the Contiguous United States, Canada and Mexico. Thu, 09 Sep 2027 at 21:40 EDT (1,164 days away) in Sagittarius

1544.

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. Sat, 11 Sep 2027 at 19:37 EDT (1,166 days away) in Capricornus

1545.

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. Sun, 12 Sep 2027 at 02:46 EDT (1,167 days away) in Leo

1546.

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, 12 Sep 2027 at 21:10 EDT (1,167 days away) in Capricornus

1547.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Tue, 14 Sep 2027 at 02:04 EDT (1,169 days away) in Virgo

1548.

Mercury at highest altitude in evening sky Mercury is bright and well placed in the evening sky. Tue, 14 Sep 2027 (1,169 days away) in Virgo

1549.

Uranus enters retrograde motion Uranus reverses its direction of motion across the sky. Wed, 15 Sep 2027 at 06:16 EDT (1,170 days away) in Taurus

1550.

Full Moon The Moon reaches full phase and is visible for much of the night. Wed, 15 Sep 2027 at 19:03 EDT (1,170 days away) in Pisces

1551.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 8°20'. Sat, 18 Sep 2027 at 17:15 EDT (1,173 days away) in Pisces

1552.

Asteroid 29 Amphitrite at opposition Asteroid 29 Amphitrite makes closest approach to the Earth. Mon, 20 Sep 2027 at 15:10 EDT (1,175 days away) in Pisces

1553.

Close approach of the Moon and M45 The Moon and M45 pass close to each other. Tue, 21 Sep 2027 at 01:49 EDT (1,176 days away) in Taurus

1554.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Thu, 23 Sep 2027 at 02:06 EDT (1,178 days away) in Virgo

1555.

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. Thu, 23 Sep 2027 at 06:20 EDT (1,178 days away) in Taurus

1556.

Mercury at greatest elongation east Mercury is bright and well placed in the evening sky. Fri, 24 Sep 2027 at 11:59 EDT (1,179 days away) in Virgo

1557.

NGC 55 is well placed NGC 55 (mag 8.2), a barred irregular galaxy in Sculptor culminates at around midnight local time. Sat, 25 Sep 2027 (1,180 days away) in Sculptor

1558.

Close approach of the Moon and M44 The Moon and M44 pass close to each other. Sat, 25 Sep 2027 at 21:43 EDT (1,180 days away) in Cancer

1559.

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. Mon, 27 Sep 2027 at 16:10 EDT (1,182 days away) in Leo

1560.

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. Mon, 27 Sep 2027 (1,182 days away) in Tucana