401.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 6°25'. Fri, 18 Sep 2020 at 17:52 EDT (1,377 days ago) in Virgo

402.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Fri, 18 Sep 2020 at 23:23 EDT (1,377 days ago) in Virgo

403.

Conjunction of Mars and Eris Mars and Eris share the same right ascension, at a separation of 8°09'. Sat, 19 Sep 2020 at 01:02 EDT (1,376 days ago) in Cetus

404.

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, 19 Sep 2020 at 09:06 EDT (1,376 days ago) in Virgo

405.

Lunar occultation of Beta1 Scorpii The Moon will pass in front of Beta1 Scorpii (Acrab), creating a lunar occultation visible from countries and territories including the Contiguous United States, Mexico, Nicaragua and Honduras amongst others. Mon, 21 Sep 2020 at 21:28 EDT (1,374 days ago) in Scorpius

406.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Tue, 22 Sep 2020 at 09:23 EDT (1,373 days ago) in Virgo

407.

Mercury at highest altitude in evening sky Mercury is bright and well placed in the evening sky. Wed, 23 Sep 2020 (1,372 days ago) in Virgo

408.

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. Wed, 23 Sep 2020 at 21:55 EDT (1,372 days ago) in Sagittarius

409.

NGC 55 is well placed NGC 55 (mag 8.2), a barred irregular galaxy in Sculptor culminates at around midnight local time. Thu, 24 Sep 2020 (1,371 days ago) in Sculptor

410.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 1°35'. Fri, 25 Sep 2020 at 02:48 EDT (1,370 days ago) in Sagittarius

411.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Fri, 25 Sep 2020 at 02:56 EDT (1,370 days ago) in Sagittarius

412.

Comet 88P/Howell passes perihelion Comet 88P/Howell makes its closest approach to the Sun. Fri, 25 Sep 2020 (1,370 days ago) in Scorpius

413.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 2°19'. Fri, 25 Sep 2020 at 16:38 EDT (1,370 days ago) in Sagittarius

414.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Fri, 25 Sep 2020 at 17:06 EDT (1,370 days ago) in Sagittarius

415.

Daytime Sextantid meteor shower 2020 The Daytime Sextantid meteor shower reaches its peak. Sun, 27 Sep 2020 (1,368 days ago) in Sextans

416.

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. Sun, 27 Sep 2020 (1,368 days ago) in Tucana

417.

Supernova SN2020ukx discovered A new supernova has been discovered in NGC 2784. Sun, 27 Sep 2020 (1,367 days ago)

418.

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. Mon, 28 Sep 2020 at 20:50 EDT (1,367 days ago) in Aquarius

419.

Saturn ends retrograde motion Saturn returns to its usual eastward motion after opposition. Tue, 29 Sep 2020 at 00:44 EDT (1,366 days ago) in Sagittarius

420.

136472 Makemake at solar conjunction 136472 Makemake 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, 29 Sep 2020 at 04:23 EDT (1,366 days ago) in Coma Berenices