661.

Comet C/2019 N1 (ATLAS) passes perihelion Comet C/2019 N1 (ATLAS) makes its closest approach to the Sun. Mon, 30 Nov 2020 (1,325 days ago) in Virgo

662.

Pheonicid meteor shower 2020 The Pheonicid meteor shower reaches its peak. Tue, 01 Dec 2020 (1,323 days ago) in Phoenix

663.

Gaia Early Data Release 3 Astronomers release the most detailed census of the stars in the Milky Way ever made. Thu, 03 Dec 2020 at 06:00 EDT (1,322 days ago)

664.

December φ-Cassiopeid meteor shower 2020 The December φ-Cassiopeid meteor shower reaches its peak. Sat, 05 Dec 2020 (1,320 days ago) in Andromeda

665.

Puppid-Velid meteor shower 2020 The Puppid-Velid meteor shower reaches its peak. Sun, 06 Dec 2020 (1,319 days ago) in Vela

666.

Asteroid 16 Psyche at opposition Asteroid 16 Psyche makes closest approach to the Earth. Mon, 07 Dec 2020 at 04:34 EDT (1,318 days ago) in Taurus

667.

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. Mon, 07 Dec 2020 at 19:37 EDT (1,318 days ago) in Leo

668.

Monocerotid meteor shower 2020 The Monocerotid meteor shower reaches its peak. Tue, 08 Dec 2020 (1,317 days ago) in Monoceros

669.

Comet C/2020 S3 (Erasmus) passes perihelion Comet C/2020 S3 (Erasmus) makes its closest approach to the Sun. Fri, 11 Dec 2020 (1,314 days ago) in Scorpius

670.

Asteroid 79 Eurynome at opposition Asteroid 79 Eurynome makes closest approach to the Earth. Fri, 11 Dec 2020 at 14:10 EDT (1,314 days ago) in Orion

671.

σ-Hydrid meteor shower 2020 The σ-Hydrid meteor shower reaches its peak. Fri, 11 Dec 2020 (1,314 days ago) in Hydra

672.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 47'. Sat, 12 Dec 2020 at 15:40 EDT (1,313 days ago) in Libra

673.

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. Sat, 12 Dec 2020 at 15:42 EDT (1,313 days ago) in Libra

674.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Sat, 12 Dec 2020 at 16:06 EDT (1,313 days ago) in Libra

675.

Lunar occultation of Venus The Moon will pass in front of Venus, creating a lunar occultation visible from countries and territories including the Contiguous United States, Canada, Alaska and Mexico amongst others. Sat, 12 Dec 2020 at 16:06 EDT (1,313 days ago) in Libra

676.

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. Sat, 12 Dec 2020 (1,313 days ago) in Dorado

677.

Geminid meteor shower 2020 The Geminid meteor shower reaches its peak. Sun, 13 Dec 2020 (1,311 days ago) in Gemini

678.

Total solar eclipse There will be an eclipse of the Sun, visible from Argentina and Chile. Mon, 14 Dec 2020 at 11:14 EDT (1,311 days ago) in Ophiuchus

679.

New Moon The Moon disappears into the Sun's glare for a few days. Mon, 14 Dec 2020 at 11:17 EDT (1,311 days ago) in Ophiuchus

680.

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. Tue, 15 Dec 2020 at 09:03 EDT (1,310 days ago) in Sagittarius