501.

Monocerotid meteor shower 2022 The Monocerotid meteor shower reaches its peak. Fri, 09 Dec 2022 (569 days ago) in Monoceros

502.

1 Ceres at perihelion 1 Ceres passes its orbit's closest point to the Sun. Fri, 09 Dec 2022 at 11:41 EDT (569 days ago) in Virgo

503.

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. Sun, 11 Dec 2022 at 19:28 EDT (567 days ago) in Cancer

504.

σ-Hydrid meteor shower 2022 The σ-Hydrid meteor shower reaches its peak. Mon, 12 Dec 2022 (566 days ago) in Hydra

505.

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. Mon, 12 Dec 2022 (566 days ago) in Dorado

506.

Geminid meteor shower 2022 The Geminid meteor shower reaches its peak. Wed, 14 Dec 2022 (564 days ago) in Gemini

507.

Comet 81P/Wild passes perihelion Comet 81P/Wild makes its closest approach to the Sun. Thu, 15 Dec 2022 (563 days ago) in Virgo

508.

The Orion Nebula is well placed The Orion Nebula (M42; mag 4.0) culminates at around midnight local time. Thu, 15 Dec 2022 (563 days ago) in Orion

509.

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. Thu, 15 Dec 2022 (563 days ago) in Orion

510.

Comae Berenicid meteor shower 2022 The Comae Berenicid meteor shower reaches its peak. Fri, 16 Dec 2022 (562 days ago) in Leo

511.

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. Fri, 16 Dec 2022 at 03:56 EDT (562 days ago) in Virgo

512.

Comet C/2017 K2 (PANSTARRS) passes perihelion Comet C/2017 K2 (PANSTARRS) makes its closest approach to the Sun. Mon, 19 Dec 2022 (559 days ago) in Pavo

513.

December Leonis Minorid meteor shower 2022 The December Leonis Minorid meteor shower reaches its peak. Tue, 20 Dec 2022 (558 days ago) in Leo Minor

514.

Lunar occultation of Delta Scorpii The Moon will pass in front of Delta Scorpii (Dschubba), creating a lunar occultation visible from the Americas. Wed, 21 Dec 2022 at 07:02 EDT (557 days ago) in Scorpius

515.

Mercury at greatest elongation east Mercury is bright and well placed in the evening sky. Wed, 21 Dec 2022 at 13:47 EDT (557 days ago) in Sagittarius

516.

December solstice 21 December will be the shortest day of 2022 in the northern hemisphere. Wed, 21 Dec 2022 at 16:43 EDT (557 days ago) in Sagittarius

517.

Ursid meteor shower 2022 The Ursid meteor shower reaches its peak. Thu, 22 Dec 2022 (556 days ago) in Ursa Minor

518.

New Moon The Moon disappears into the Sun's glare for a few days. Fri, 23 Dec 2022 at 05:17 EDT (555 days ago) in Sagittarius

519.

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, 23 Dec 2022 at 13:15 EDT (555 days ago) in Sagittarius

520.

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, 24 Dec 2022 at 03:26 EDT (554 days ago) in Sagittarius