401.

Ursid meteor shower 2019 The Ursid meteor shower reaches its peak. Sun, 22 Dec 2019 (1,647 days ago) in Ursa Minor

402.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 3°31'. Sun, 22 Dec 2019 at 20:48 EDT (1,648 days ago) in Libra

403.

December solstice 22 December will be the shortest day of 2019 in the northern hemisphere. Sat, 21 Dec 2019 at 23:12 EDT (1,648 days ago) in Sagittarius

404.

December Leonis Minorid meteor shower 2019 The December Leonis Minorid meteor shower reaches its peak. Fri, 20 Dec 2019 (1,650 days ago) in Leo Minor

405.

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. Wed, 18 Dec 2019 at 23:57 EDT (1,651 days ago) in Virgo

406.

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. Wed, 18 Dec 2019 at 15:25 EDT (1,652 days ago) in Leo

407.

Comae Berenicid meteor shower 2019 The Comae Berenicid meteor shower reaches its peak. Mon, 16 Dec 2019 (1,654 days ago) in Leo

408.

The Running Man cluster is well placed The Running Man cluster NGC 1977 (mag 4.2) in Orion's sword culminates at around midnight local time. Sun, 15 Dec 2019 (1,655 days ago) in Orion

409.

The Orion Nebula is well placed The Orion Nebula (M42; mag 4.0) culminates at around midnight local time. Sun, 15 Dec 2019 (1,655 days ago) in Orion

410.

Close approach of the Moon and M44 The Moon and M44 pass close to each other. Sun, 15 Dec 2019 at 11:51 EDT (1,655 days ago) in Cancer

411.

Geminid meteor shower 2019 The Geminid meteor shower reaches its peak. Sat, 14 Dec 2019 (1,656 days ago) in Gemini

412.

Conjunction of Venus and Pluto Venus and Pluto share the same right ascension, at a separation of 1°08'. Fri, 13 Dec 2019 at 12:26 EDT (1,657 days ago) in Sagittarius

413.

The Large Magellanic Cloud is well placed The Milky Way's dwarf companion, the Large Magellanic Cloud (LMC; mag 0.9), in Dorado culminates at around midnight local time. Thu, 12 Dec 2019 (1,658 days ago) in Dorado

414.

σ-Hydrid meteor shower 2019 The σ-Hydrid meteor shower reaches its peak. Thu, 12 Dec 2019 (1,658 days ago) in Hydra

415.

Full Moon The Moon reaches full phase and is visible for much of the night. Thu, 12 Dec 2019 at 00:12 EDT (1,658 days ago) in Taurus

416.

Close approach of Venus and Saturn Venus and Saturn pass within 1°47' of each other. Wed, 11 Dec 2019 at 04:28 EDT (1,659 days ago) in Sagittarius

417.

Conjunction of Venus and Saturn Venus and Saturn share the same right ascension, at a separation of 1°48'. Tue, 10 Dec 2019 at 23:45 EDT (1,659 days ago) in Sagittarius

418.

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, 10 Dec 2019 at 16:41 EDT (1,660 days ago) in Taurus

419.

Monocerotid meteor shower 2019 The Monocerotid meteor shower reaches its peak. Mon, 09 Dec 2019 (1,661 days ago) in Monoceros

420.

Comet 2I/Borisov passes perihelion Comet 2I/Borisov makes its closest approach to the Sun. Sun, 08 Dec 2019 (1,662 days ago) in Crater