441.

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. Sun, 31 Dec 2028 at 03:23 EDT (1,649 days away) in Gemini

442.

Mercury at greatest elongation east Mercury is bright and well placed in the evening sky. Sat, 30 Dec 2028 at 22:30 EDT (1,648 days away) in Sagittarius

443.

The Rosette Nebula is well placed The Rosette Nebula (C49; mag 9.0) in Monoceros culminates at around midnight local time. Fri, 29 Dec 2028 (1,647 days away) in Monoceros

444.

The cluster NGC 2232 is well placed The open star cluster NGC 2232 (mag 4.2) in Monoceros culminates at around midnight local time. Thu, 28 Dec 2028 (1,646 days away) in Monoceros

445.

Close approach of the Moon and M45 The Moon and M45 pass close to each other. Thu, 28 Dec 2028 at 10:40 EDT (1,646 days away) in Taurus

446.

1 Ceres at solar conjunction 1 Ceres is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Tue, 26 Dec 2028 at 23:31 EDT (1,645 days away) in Sagittarius

447.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 7°50'. Tue, 26 Dec 2028 at 13:51 EDT (1,644 days away) in Cetus

448.

Comet 185P/Petriew passes perihelion Comet 185P/Petriew makes its closest approach to the Sun. Mon, 25 Dec 2028 (1,643 days away) in Aquarius

449.

Jupiter at aphelion Jupiter passes the furthest point along its orbit from the Sun. Mon, 25 Dec 2028 at 05:29 EDT (1,643 days away) in Virgo

450.

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. Sat, 23 Dec 2028 at 16:45 EDT (1,641 days away) in Pisces

451.

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, 23 Dec 2028 at 16:00 EDT (1,641 days away) in Pisces

452.

Ursid meteor shower 2028 The Ursid meteor shower reaches its peak. Fri, 22 Dec 2028 (1,640 days away) in Ursa Minor

453.

December solstice 21 December will be the shortest day of 2028 in the northern hemisphere. Thu, 21 Dec 2028 at 03:26 EDT (1,639 days away) in Sagittarius

454.

December Leonis Minorid meteor shower 2028 The December Leonis Minorid meteor shower reaches its peak. Tue, 19 Dec 2028 (1,637 days away) in Leo Minor

455.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 1°58'. Sun, 17 Dec 2028 at 01:55 EDT (1,635 days away) in Sagittarius

456.

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. Sat, 16 Dec 2028 at 20:51 EDT (1,634 days away) in Sagittarius

457.

Neptune ends retrograde motion Neptune returns to its usual eastward motion after opposition. Sat, 16 Dec 2028 at 17:37 EDT (1,634 days away) in Pisces

458.

New Moon The Moon disappears into the Sun's glare for a few days. Fri, 15 Dec 2028 at 21:07 EDT (1,633 days away) in Ophiuchus

459.

Comae Berenicid meteor shower 2028 The Comae Berenicid meteor shower reaches its peak. Fri, 15 Dec 2028 (1,633 days away) in Leo

460.

Asteroid 14 Irene at opposition Asteroid 14 Irene makes closest approach to the Earth. Thu, 14 Dec 2028 at 23:46 EDT (1,633 days away) in Taurus