401.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Mon, 20 Mar 2017 at 06:53 EDT (2,594 days ago) in Sagittarius

402.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 3°26'. Mon, 20 Mar 2017 at 06:28 EDT (2,594 days ago) in Sagittarius

403.

March equinox Day and night have equal length, marking the beginning of spring in the northern hemisphere and autumn in the southern hemisphere. Mon, 20 Mar 2017 at 06:25 EDT (2,594 days ago) in Pisces

404.

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. Sat, 18 Mar 2017 at 13:25 EDT (2,596 days ago) in Ophiuchus

405.

Comet 2P/Encke passes perigee Comet 2P/Encke makes its closest approach to the Earth. Thu, 16 Mar 2017 (2,598 days ago) in Aquarius

406.

Supernova SN2017cfd discovered A new supernova has been discovered in IC 511. Wed, 15 Mar 2017 (2,598 days ago)

407.

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. Wed, 15 Mar 2017 at 09:33 EDT (2,599 days ago) in Virgo

408.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Tue, 14 Mar 2017 at 17:34 EDT (2,600 days ago) in Virgo

409.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 2°27'. Tue, 14 Mar 2017 at 16:04 EDT (2,600 days ago) in Virgo

410.

γ-Normid meteor shower 2017 The γ-Normid meteor shower reaches its peak. Tue, 14 Mar 2017 (2,600 days ago) in Norma

411.

Comet 2P/Encke passes perihelion Comet 2P/Encke makes its closest approach to the Sun. Mon, 13 Mar 2017 (2,601 days ago) in Pisces

412.

Full Moon The Moon reaches full phase and is visible for much of the night. Sun, 12 Mar 2017 at 10:53 EDT (2,602 days ago) in Leo

413.

Lunar occultation of Regulus The Moon will pass in front of Regulus (Alpha Leonis), creating a lunar occultation visible from countries and territories including South Africa, South Georgia and the South Sandwich Islands, Namibia and French Southern Territories amongst others. Fri, 10 Mar 2017 at 17:21 EDT (2,604 days ago) in Leo

414.

Supernova SN2017cbv discovered A new supernova has been discovered in NGC 5643. Thu, 09 Mar 2017 (2,604 days ago)

415.

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. Wed, 08 Mar 2017 (2,606 days ago) in Carina

416.

Mercury at superior solar conjunction Mercury passes around the far side of the Sun. Mon, 06 Mar 2017 at 19:37 EDT (2,608 days ago) in Aquarius

417.

Supernova SN2017bzc discovered A new supernova has been discovered in NGC 7552. Mon, 06 Mar 2017 (2,607 days ago)

418.

Supernova SN2017bzb discovered A new supernova has been discovered in NGC 7424. Mon, 06 Mar 2017 (2,607 days ago)

419.

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, 05 Mar 2017 at 06:32 EDT (2,609 days ago) in Taurus

420.

Lunar occultation of Aldebaran The Moon will pass in front of Aldebaran (Alpha Tauri), creating a lunar occultation visible from countries and territories including the Contiguous United States, Mexico, Cuba and Nicaragua amongst others. Sat, 04 Mar 2017 at 21:59 EDT (2,610 days ago) in Taurus