521.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 1°55'. Fri, 19 Mar 2021 at 13:46 EDT (1,245 days ago) in Taurus

522.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Fri, 19 Mar 2021 at 14:47 EDT (1,245 days ago) in Taurus

523.

March equinox Day and night have equal length, marking the beginning of spring in the northern hemisphere and autumn in the southern hemisphere. Sat, 20 Mar 2021 at 05:30 EDT (1,244 days ago) in Pisces

524.

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. Sun, 21 Mar 2021 at 10:41 EDT (1,243 days ago) in Gemini

525.

Comet 10P/Tempel passes perihelion Comet 10P/Tempel makes its closest approach to the Sun. Tue, 23 Mar 2021 (1,241 days ago) in Aquarius

526.

Venus at superior solar conjunction Venus passes around the far side of the Sun. Fri, 26 Mar 2021 at 03:30 EDT (1,238 days ago) in Pisces

527.

136472 Makemake at opposition 136472 Makemake lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Sat, 27 Mar 2021 at 10:46 EDT (1,237 days ago) in Coma Berenices

528.

Full Moon The Moon reaches full phase and is visible for much of the night. Sun, 28 Mar 2021 at 14:48 EDT (1,236 days ago) in Virgo

529.

Conjunction of Mercury and Neptune Mercury and Neptune share the same right ascension, at a separation of 1°23'. Mon, 29 Mar 2021 at 15:15 EDT (1,235 days ago) in Aquarius

530.

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, 30 Mar 2021 at 02:15 EDT (1,234 days ago) in Virgo

531.

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. Tue, 30 Mar 2021 at 19:40 EDT (1,234 days ago) in Libra

532.

Lunar occultation of Beta1 Scorpii The Moon will pass in front of Beta1 Scorpii (Acrab), creating a lunar occultation visible from Oceania, Baker Island, Howland Island, Jarvis Island, Kingman Reef, Palmyra Atoll and Tokelau. Thu, 01 Apr 2021 at 07:39 EDT (1,232 days ago) in Scorpius

533.

The Sombrero Galaxy is well placed The Sombrero Galaxy M104 (NGC 4594; mag 8.6) in Virgo culminates at around midnight local time. Thu, 01 Apr 2021 (1,232 days ago) in Virgo

534.

Lunar occultation of Sigma Sagittarii The Moon will pass in front of Sigma Sagittarii (Nunki), creating a lunar occultation visible from countries and territories including Mauritania, Western Sahara, Senegal and Morocco amongst others. Sun, 04 Apr 2021 at 02:19 EDT (1,229 days ago) in Sagittarius

535.

Asteroid 9 Metis at opposition Asteroid 9 Metis makes closest approach to the Earth. Sun, 04 Apr 2021 at 05:34 EDT (1,229 days ago) in Virgo

536.

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. Sun, 04 Apr 2021 at 06:03 EDT (1,229 days ago) in Sagittarius

537.

Messier 94 is well placed M94 (mag 8.2), a spiral galaxy in Canes Venatici culminates at around midnight local time. Sun, 04 Apr 2021 (1,229 days ago) in Canes Venatici

538.

The Jewel Box cluster is well placed The Jewel Box open star cluster (NGC 4755, also known as the Kappa Crucis Cluster; mag 4.2) in Crux culminates at around midnight local time. Mon, 05 Apr 2021 (1,228 days ago) in Crux

539.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 3°57'. Tue, 06 Apr 2021 at 04:30 EDT (1,227 days ago) in Capricornus

540.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Tue, 06 Apr 2021 at 06:12 EDT (1,227 days ago) in Capricornus