561.

136108 Haumea at solar conjunction 136108 Haumea is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Thu, 21 Oct 2021 at 18:07 EDT (1,000 days ago) in Bootes

562.

Close approach of the Moon and Uranus The Moon and Uranus pass close to each other. Thu, 21 Oct 2021 at 18:39 EDT (1,000 days ago) in Aries

563.

Mercury at dichotomy Mercury reaches half phase in the dawn sky. Sat, 23 Oct 2021 at 18:40 EDT (998 days ago) in Virgo

564.

Leonis Minorid meteor shower 2021 The Leonis Minorid meteor shower reaches its peak. Sun, 24 Oct 2021 (997 days ago) in Leo Minor

565.

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. Sun, 24 Oct 2021 at 11:28 EDT (997 days ago) in Taurus

566.

Mercury at highest altitude in morning sky Mercury is bright and well placed in the dawn sky. Sun, 24 Oct 2021 (996 days ago) in Virgo

567.

Mercury at greatest elongation west Mercury is bright and well placed in the dawn sky. Sun, 24 Oct 2021 at 23:45 EDT (997 days ago) in Virgo

568.

The Perseus Double Cluster is well placed The Perseus Double Cluster (NGC 869 and NGC 884; combined mag 4.3) culminates at around midnight local time. Tue, 26 Oct 2021 (995 days ago) in Perseus

569.

Venus at dichotomy Venus reaches half phase in the evening sky. Thu, 28 Oct 2021 at 10:28 EDT (993 days ago) in Ophiuchus

570.

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, 28 Oct 2021 at 16:05 EDT (993 days ago) in Cancer

571.

Venus at greatest elongation east Venus is bright and well placed in the evening sky. Fri, 29 Oct 2021 at 10:57 EDT (992 days ago) in Ophiuchus

572.

Comet 67P/Churyumov-Gerasimenko passes perihelion Comet 67P/Churyumov-Gerasimenko makes its closest approach to the Sun. Tue, 02 Nov 2021 (988 days ago) in Gemini

573.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 1°13'. Wed, 03 Nov 2021 at 14:39 EDT (987 days ago) in Virgo

574.

Lunar occultation of Mercury The Moon will pass in front of Mercury, creating a lunar occultation visible from Canada and the Contiguous United States. Wed, 03 Nov 2021 at 15:36 EDT (987 days ago) in Virgo

575.

New Moon The Moon disappears into the Sun's glare for a few days. Thu, 04 Nov 2021 at 17:15 EDT (986 days ago) in Libra

576.

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. Thu, 04 Nov 2021 at 19:49 EDT (986 days ago) in Aries

577.

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, 05 Nov 2021 at 18:17 EDT (985 days ago) in Libra

578.

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. Sat, 06 Nov 2021 at 13:22 EDT (984 days ago) in Ophiuchus

579.

Comet 67P/Churyumov-Gerasimenko reaches peak brightness Comet 67P/Churyumov-Gerasimenko is forecast to reach the brightest point in its 2021 apparition. Sun, 07 Nov 2021 (983 days ago) in Gemini

580.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 1°06'. Mon, 08 Nov 2021 at 00:20 EDT (982 days ago) in Sagittarius