541.

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 (1,197 days ago) in Pisces

542.

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 (1,196 days ago) in Gemini

543.

Comet 10P/Tempel passes perihelion Comet 10P/Tempel makes its closest approach to the Sun. Tue, 23 Mar 2021 (1,194 days ago) in Aquarius

544.

Venus at superior solar conjunction Venus passes around the far side of the Sun. Fri, 26 Mar 2021 at 03:30 EDT (1,191 days ago) in Pisces

545.

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 10:48 EDT (1,190 days ago) in Coma Berenices

546.

Full Moon The Moon reaches full phase and is visible for much of the night. Sun, 28 Mar 2021 at 14:48 EDT (1,189 days ago) in Virgo

547.

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 (1,188 days ago) in Aquarius

548.

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 (1,187 days ago) in Virgo

549.

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 (1,187 days ago) in Libra

550.

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 (1,185 days ago) in Scorpius

551.

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 (1,185 days ago) in Virgo

552.

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 (1,182 days ago) in Sagittarius

553.

Asteroid 9 Metis at opposition Asteroid 9 Metis makes closest approach to the Earth. Sun, 04 Apr 2021 at 05:34 EDT (1,182 days ago) in Virgo

554.

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 (1,182 days ago) in Sagittarius

555.

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 (1,182 days ago) in Canes Venatici

556.

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 (1,181 days ago) in Crux

557.

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 (1,180 days ago) in Capricornus

558.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Tue, 06 Apr 2021 at 06:12 EDT (1,180 days ago) in Capricornus

559.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 4°23'. Wed, 07 Apr 2021 at 03:18 EDT (1,179 days ago) in Capricornus

560.

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. Wed, 07 Apr 2021 at 05:34 EDT (1,179 days ago) in Cetus