401.

Southern δ-Aquariid meteor shower 2020 The Southern δ-Aquariid meteor shower reaches its peak. Wed, 29 Jul 2020 (1,428 days ago) in Aquarius

402.

Lunar occultation of Beta1 Scorpii The Moon will pass in front of Beta1 Scorpii (Acrab), creating a lunar occultation visible from China, Russia and Mongolia. Wed, 29 Jul 2020 at 09:35 EDT (1,428 days ago) in Scorpius

403.

Piscis Austrinid meteor shower 2020 The Piscis Austrinid meteor shower reaches its peak. Tue, 28 Jul 2020 (1,429 days ago) in Piscis Austrinus

404.

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, 27 Jul 2020 at 08:33 EDT (1,430 days ago) in Virgo

405.

Mercury at highest altitude in morning sky Mercury is bright and well placed in the dawn sky. Sun, 26 Jul 2020 (1,431 days ago) in Gemini

406.

Mercury at dichotomy Mercury reaches half phase in the dawn sky. Sun, 26 Jul 2020 at 05:20 EDT (1,431 days ago) in Gemini

407.

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, 25 Jul 2020 at 01:01 EDT (1,432 days ago) in Virgo

408.

Supernova SN2020qmp discovered A new supernova has been discovered in UGC 7125. Thu, 23 Jul 2020 (1,433 days ago)

409.

Comet C/2020 F3 (NEOWISE) passes perigee Comet C/2020 F3 (NEOWISE) makes its closest approach to the Earth. Thu, 23 Jul 2020 (1,434 days ago)

410.

Mercury at greatest elongation west Mercury is bright and well placed in the dawn sky. Wed, 22 Jul 2020 at 18:32 EDT (1,435 days ago) in Gemini

411.

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. Mon, 20 Jul 2020 at 23:28 EDT (1,437 days ago) in Cancer

412.

Saturn at opposition Saturn lies in the opposite direction to the Sun in the sky, making it slightly closer, brighter and larger than at other times. It is also optimally positioned to be observable for much of the night. Mon, 20 Jul 2020 at 18:19 EDT (1,437 days ago) in Sagittarius

413.

New Moon The Moon disappears into the Sun's glare for a few days. Mon, 20 Jul 2020 at 13:34 EDT (1,437 days ago) in Cancer

414.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 3°53'. Sat, 18 Jul 2020 at 23:55 EDT (1,439 days ago) in Gemini

415.

Messier 55 is well placed The globular cluster M55 (NGC 6809l; mag 6.3) in Sagittarius culminates at around midnight local time. Fri, 17 Jul 2020 (1,440 days ago) in Sagittarius

416.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 3°07'. Fri, 17 Jul 2020 at 03:27 EDT (1,440 days ago) in Taurus

417.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Fri, 17 Jul 2020 at 02:07 EDT (1,440 days ago) in Taurus

418.

134340 Pluto at opposition 134340 Pluto lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Wed, 15 Jul 2020 at 22:48 EDT (1,442 days ago) in Sagittarius

419.

Asteroid 2 Pallas at opposition Asteroid 2 Pallas makes closest approach to the Earth. Wed, 15 Jul 2020 at 07:58 EDT (1,442 days ago) in Sagitta

420.

Jupiter at perigee Jupiter reaches its closest point to the Earth – marking the best time to observe it in 1970. Wed, 15 Jul 2020 at 05:56 EDT (1,442 days ago) in Sagittarius