621.

Comet C/2021 D1 (SWAN) passes perihelion Comet C/2021 D1 (SWAN) makes its closest approach to the Sun. Sat, 27 Feb 2021 (1,235 days ago) in Pegasus

622.

The cluster IC 2581 is well placed The open star cluster IC 2581 (mag 4.0) in Carina culminates at around midnight local time. Sat, 27 Feb 2021 (1,235 days ago) in Carina

623.

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, 28 Feb 2021 at 22:57 EDT (1,234 days ago) in Virgo

624.

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. Tue, 02 Mar 2021 at 00:17 EDT (1,232 days ago) in Virgo

625.

Comet C/2020 R4 (ATLAS) passes perihelion Comet C/2020 R4 (ATLAS) makes its closest approach to the Sun. Tue, 02 Mar 2021 (1,232 days ago) in Aquarius

626.

Mercury at dichotomy Mercury reaches half phase in the dawn sky. Tue, 02 Mar 2021 at 09:18 EDT (1,232 days ago) in Capricornus

627.

Asteroid 4 Vesta at opposition Asteroid 4 Vesta makes closest approach to the Earth. Wed, 03 Mar 2021 at 16:34 EDT (1,231 days ago) in Leo

628.

The Theta Carinae cluster is well placed The Theta Carinae open star cluster (IC 2602, also known as the Southern Pleiades; mag 1.9) culminates at around midnight local time. Wed, 03 Mar 2021 (1,231 days ago) in Carina

629.

Lunar occultation of Beta1 Scorpii The Moon will pass in front of Beta1 Scorpii (Acrab), creating a lunar occultation visible from Sub-Saharan Africa and Brazil. Thu, 04 Mar 2021 at 23:37 EDT (1,229 days ago) in Scorpius

630.

Close approach of Jupiter and Mercury Jupiter and Mercury pass within 19' of each other. Fri, 05 Mar 2021 at 00:54 EDT (1,229 days ago) in Capricornus

631.

Conjunction of Jupiter and Mercury Jupiter and Mercury share the same right ascension, at a separation of 19'. Fri, 05 Mar 2021 at 01:45 EDT (1,229 days ago) in Capricornus

632.

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. Fri, 05 Mar 2021 at 20:30 EDT (1,229 days ago) in Ophiuchus

633.

Mercury at greatest elongation west Mercury is bright and well placed in the dawn sky. Sat, 06 Mar 2021 at 04:58 EDT (1,228 days ago) in Capricornus

634.

Lunar occultation of Sigma Sagittarii The Moon will pass in front of Sigma Sagittarii (Nunki), creating a lunar occultation visible from Kazakhstan. Sun, 07 Mar 2021 at 19:49 EDT (1,227 days ago) in Sagittarius

635.

The Wishing Well cluster is well placed The Wishing Well open star cluster (NGC 3532; mag 3.0) in Carina culminates at around midnight local time. Mon, 08 Mar 2021 (1,226 days ago) in Carina

636.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 3°40'. Tue, 09 Mar 2021 at 17:58 EDT (1,225 days ago) in Capricornus

637.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Tue, 09 Mar 2021 at 19:24 EDT (1,225 days ago) in Capricornus

638.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 4°02'. Wed, 10 Mar 2021 at 10:37 EDT (1,224 days ago) in Capricornus

639.

Neptune at solar conjunction Neptune is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Wed, 10 Mar 2021 at 18:52 EDT (1,224 days ago) in Aquarius

640.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 3°41'. Wed, 10 Mar 2021 at 20:02 EDT (1,224 days ago) in Capricornus