321.

Lunar occultation of Mercury The Moon will pass in front of Mercury, creating a lunar occultation visible from Antarctica. Wed, 20 Sep 2028 at 01:22 EDT (1,547 days away) in Virgo

322.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 1°13'. Wed, 20 Sep 2028 at 02:07 EDT (1,547 days away) in Virgo

323.

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. Wed, 20 Sep 2028 at 19:41 EDT (1,547 days away) in Virgo

324.

Comet 58P/Jackson-Neujmin passes perigee Comet 58P/Jackson-Neujmin makes its closest approach to the Earth. Thu, 21 Sep 2028 (1,548 days away) in Eridanus

325.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Fri, 22 Sep 2028 at 07:51 EDT (1,549 days away) in Virgo

326.

NGC 55 is well placed NGC 55 (mag 8.2), a barred irregular galaxy in Sculptor culminates at around midnight local time. Sun, 24 Sep 2028 (1,551 days away) in Sculptor

327.

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. Mon, 25 Sep 2028 at 09:10 EDT (1,552 days away) in Sagittarius

328.

Daytime Sextantid meteor shower 2028 The Daytime Sextantid meteor shower reaches its peak. Wed, 27 Sep 2028 (1,554 days away) in Sextans

329.

47 Tuc is well placed The second brightest globular cluster in the sky, 47 Tuc (NGC 104; mag 4.0), in Tucana culminates at around midnight local time. Wed, 27 Sep 2028 (1,554 days away) in Tucana

330.

Jupiter at apogee Jupiter reaches its furthest point from the Earth, as it passes around the far side of the Sun. Fri, 29 Sep 2028 at 04:51 EDT (1,556 days away) in Virgo

331.

Neptune at opposition Neptune lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Fri, 29 Sep 2028 at 22:39 EDT (1,556 days away) in Cetus

332.

Jupiter at solar conjunction Jupiter is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Sat, 30 Sep 2028 at 08:40 EDT (1,557 days away) in Virgo

333.

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. Sat, 30 Sep 2028 at 09:43 EDT (1,557 days away) in Aquarius

334.

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, 01 Oct 2028 at 17:38 EDT (1,558 days away) in Pisces

335.

The Andromeda Galaxy is well placed The Andromeda Galaxy M31 (mag 3.4) culminates at around midnight local time. Sun, 01 Oct 2028 (1,558 days away) in Andromeda

336.

Mercury at inferior solar conjunction Mercury passes around the near side of the Sun. Mon, 02 Oct 2028 at 06:33 EDT (1,559 days away) in Virgo

337.

NGC 253 is well placed The Sculptor Galaxy NGC 253 (mag 7.1) culminates at around midnight local time. Mon, 02 Oct 2028 (1,559 days away) in Sculptor

338.

Full Moon The Moon reaches full phase and is visible for much of the night. Tue, 03 Oct 2028 at 12:24 EDT (1,560 days away) in Pisces

339.

The Small Magellanic Cloud is well placed The Milky Way's dwarf companion, the Small Magellanic Cloud (SMC; mag 2.7), in Tucana culminates at around midnight local time. Wed, 04 Oct 2028 (1,561 days away) in Tucana

340.

NGC 300 is well placed NGC 300 (mag 8.1), a spiral galaxy in Sculptor culminates at around midnight local time. Wed, 04 Oct 2028 (1,561 days away) in Sculptor