581.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 5°03'. Thu, 21 Jan 2021 at 00:35 EDT (1,272 days ago) in Aries

582.

Close approach of the Moon, Mars and Uranus The Moon, Mars and Uranus pass close to one another. Thu, 21 Jan 2021 at 04:49 EDT (1,272 days ago) in Aries

583.

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. Thu, 21 Jan 2021 at 08:10 EDT (1,272 days ago) in Aries

584.

Asteroid 15 Eunomia at opposition Asteroid 15 Eunomia makes closest approach to the Earth. Thu, 21 Jan 2021 at 11:46 EDT (1,272 days ago) in Cancer

585.

Conjunction of Mars and Uranus Mars and Uranus share the same right ascension, at a separation of 1°43'. Thu, 21 Jan 2021 at 18:41 EDT (1,272 days ago) in Aries

586.

Comet C/2021 A2 (NEOWISE) passes perihelion Comet C/2021 A2 (NEOWISE) makes its closest approach to the Sun. Fri, 22 Jan 2021 (1,271 days ago) in Vela

587.

The cluster NGC 2547 is well placed The open star cluster NGC 2547 (mag 4.7) in Vela culminates at around midnight local time. Sat, 23 Jan 2021 (1,270 days ago) in Vela

588.

Mercury at greatest elongation east Mercury is bright and well placed in the evening sky. Sat, 23 Jan 2021 at 21:10 EDT (1,270 days ago) in Capricornus

589.

Saturn at solar conjunction Saturn 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, 23 Jan 2021 at 21:51 EDT (1,270 days ago) in Capricornus

590.

Mercury at highest altitude in evening sky Mercury is bright and well placed in the evening sky. Sun, 24 Jan 2021 (1,268 days ago) in Capricornus

591.

Mercury at dichotomy Mercury reaches half phase in the evening sky. Mon, 25 Jan 2021 at 02:45 EDT (1,268 days ago) in Capricornus

592.

Asteroid 14 Irene at opposition Asteroid 14 Irene makes closest approach to the Earth. Mon, 25 Jan 2021 at 06:58 EDT (1,268 days ago) in Cancer

593.

Jupiter at apogee Jupiter reaches its furthest point from the Earth, as it passes around the far side of the Sun. Wed, 27 Jan 2021 at 21:16 EDT (1,266 days ago) in Capricornus

594.

Full Moon The Moon reaches full phase and is visible for much of the night. Thu, 28 Jan 2021 at 14:16 EDT (1,265 days ago) in Cancer

595.

Jupiter at solar conjunction Jupiter 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, 28 Jan 2021 at 20:28 EDT (1,265 days ago) in Capricornus

596.

Mercury at perihelion Mercury passes its orbit's closest point to the Sun. Thu, 28 Jan 2021 at 21:03 EDT (1,265 days ago) in Capricornus

597.

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. Fri, 29 Jan 2021 at 11:27 EDT (1,264 days ago) in Leo

598.

The Beehive cluster is well placed The Beehive open star cluster (M44, NGC 2632, also known as Praesepe; mag 3.1) culminates at around midnight local time. Sat, 30 Jan 2021 (1,263 days ago) in Cancer

599.

The Omicron Velorum cluster is well placed The Omicron Velorum open star cluster (IC 2391; mag 2.5) in Vela culminates at around midnight local time. Sun, 31 Jan 2021 (1,262 days ago) in Vela

600.

The cluster IC 2395 is well placed The open star cluster IC 2395 (mag 4.0) in Vela culminates at around midnight local time. Sun, 31 Jan 2021 (1,262 days ago) in Vela