421.

Mercury at dichotomy Mercury reaches half phase in the evening sky. Mon, 17 Dec 2029 at 06:54 EDT (1,995 days away) in Sagittarius

422.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Mon, 17 Dec 2029 at 10:16 EDT (1,995 days away) in Aries

423.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 5°38'. Mon, 17 Dec 2029 at 12:31 EDT (1,995 days away) in Aries

424.

Neptune ends retrograde motion Neptune returns to its usual eastward motion after opposition. Wed, 19 Dec 2029 at 04:43 EDT (1,997 days away) in Cetus

425.

Close approach of the Moon and Uranus The Moon and Uranus pass close to each other. Wed, 19 Dec 2029 at 15:43 EDT (1,997 days away) in Taurus

426.

Lunar occultation of Uranus The Moon will pass in front of Uranus, creating a lunar occultation visible from countries and territories including Russia, Greenland, Mongolia and China amongst others. Wed, 19 Dec 2029 at 15:43 EDT (1,997 days away) in Taurus

427.

December Leonis Minorid meteor shower 2029 The December Leonis Minorid meteor shower reaches its peak. Wed, 19 Dec 2029 (1,998 days away) in Leo Minor

428.

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, 19 Dec 2029 at 20:10 EDT (1,997 days away) in Taurus

429.

Total lunar eclipse There will be an eclipse of the Moon, visible from the Americas, Asia, Russia, Africa and Europe. Thu, 20 Dec 2029 at 17:42 EDT (1,998 days away) in Taurus

430.

Full Moon The Moon reaches full phase and is visible for much of the night. Thu, 20 Dec 2029 at 17:46 EDT (1,998 days away) in Taurus

431.

December solstice 21 December will be the shortest day of 2029 in the northern hemisphere. Fri, 21 Dec 2029 at 09:20 EDT (1,999 days away) in Sagittarius

432.

Ursid meteor shower 2029 The Ursid meteor shower reaches its peak. Sat, 22 Dec 2029 (2,000 days away) in Ursa Minor

433.

Conjunction of Mars and Pluto Mars and Pluto share the same right ascension, at a separation of 4°38'. Wed, 26 Dec 2029 at 17:03 EDT (2,004 days away) in Capricornus

434.

Mercury at perihelion Mercury passes its orbit's closest point to the Sun. Thu, 27 Dec 2029 at 17:42 EDT (2,005 days away) in Sagittarius

435.

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, 28 Dec 2029 at 04:49 EDT (2,006 days away) in Virgo

436.

The cluster NGC 2232 is well placed The open star cluster NGC 2232 (mag 4.2) in Monoceros culminates at around midnight local time. Fri, 28 Dec 2029 (2,006 days away) in Monoceros

437.

Mars at perihelion Mars passes its orbit's closest point to the Sun. Sat, 29 Dec 2029 at 08:23 EDT (2,007 days away) in Capricornus

438.

The Rosette Nebula is well placed The Rosette Nebula (C49; mag 9.0) in Monoceros culminates at around midnight local time. Sat, 29 Dec 2029 (2,007 days away) in Monoceros