401.

Asteroid 9 Metis at opposition Asteroid 9 Metis makes closest approach to the Earth. Sun, 04 Apr 2021 at 05:34 EDT (1,199 days ago) in Virgo

402.

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 (1,199 days ago) in Sagittarius

403.

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 (1,199 days ago) in Canes Venatici

404.

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 (1,198 days ago) in Crux

405.

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 (1,197 days ago) in Capricornus

406.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Tue, 06 Apr 2021 at 06:12 EDT (1,197 days ago) in Capricornus

407.

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 (1,196 days ago) in Capricornus

408.

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 04:15 EDT (1,196 days ago) in Cetus

409.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Wed, 07 Apr 2021 at 05:51 EDT (1,196 days ago) in Capricornus

410.

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. Fri, 09 Apr 2021 at 04:32 EDT (1,194 days ago) in Aquarius

411.

New Moon The Moon disappears into the Sun's glare for a few days. Sun, 11 Apr 2021 at 22:32 EDT (1,192 days ago) in Pisces

412.

Centaurus A is well placed Centaurus A (NGC 5128; mag 7.0) culminates at around midnight local time. Tue, 13 Apr 2021 (1,190 days ago) in Centaurus

413.

Omega Centauri is well placed The brightest globular cluster in the sky, Omega Centauri (mag 3.6) culminates at around midnight local time. Tue, 13 Apr 2021 (1,190 days ago) in Centaurus

414.

136199 Eris at solar conjunction 136199 Eris is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Tue, 13 Apr 2021 at 22:55 EDT (1,190 days ago) in Cetus

415.

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. Wed, 14 Apr 2021 at 13:45 EDT (1,189 days ago) in Taurus

416.

The Whirlpool Galaxy is well placed The Whirlpool Galaxy M51 (NGC 5194; mag 8.4) in Canes Venatici culminates at around midnight local time. Wed, 14 Apr 2021 (1,189 days ago) in Canes Venatici

417.

Messier 83 is well placed The Southern Pinwheel Galaxy M83 (NGC 5236; mag 7.2), a face-on spiral galaxy in Hydra culminates at around midnight local time. Fri, 16 Apr 2021 (1,187 days ago) in Hydra

418.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 7'57". Sat, 17 Apr 2021 at 08:08 EDT (1,186 days ago) in Taurus

419.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Sat, 17 Apr 2021 at 08:10 EDT (1,186 days ago) in Taurus

420.

Lunar occultation of Mars The Moon will pass in front of Mars, creating a lunar occultation visible from Asia, Christmas Island, Spratly Islands and Paracel Islands. Sat, 17 Apr 2021 at 08:10 EDT (1,186 days ago) in Taurus