241.

Comet C/2019 U6 (Lemmon) reaches peak brightness Comet C/2019 U6 (Lemmon) is forecast to reach the brightest point in its 2020 apparition. Mon, 22 Jun 2020 (1,486 days ago) in Hydra

242.

The Lagoon Nebula is well placed The Lagoon Nebula (M8; mag 5.8) in Sagittarius culminates at around midnight local time. Mon, 22 Jun 2020 (1,486 days ago) in Sagittarius

243.

Neptune enters retrograde motion Neptune reverses its direction of motion across the sky. Mon, 22 Jun 2020 at 22:58 EDT (1,486 days ago) in Aquarius

244.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Tue, 23 Jun 2020 at 00:17 EDT (1,485 days ago) in Gemini

245.

NGC 6541 is well placed The globular cluster NGC 6541 (mag 6.6) in Corona Australis culminates at around midnight local time. Tue, 23 Jun 2020 (1,485 days ago) in Corona Australis

246.

June Bootid meteor shower 2020 The June Bootid meteor shower reaches its peak. Sat, 27 Jun 2020 (1,481 days ago) in Bootes

247.

Asteroid 7 Iris at opposition Asteroid 7 Iris makes closest approach to the Earth. Sat, 27 Jun 2020 at 15:10 EDT (1,481 days ago) in Sagittarius

248.

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. Sun, 28 Jun 2020 at 04:16 EDT (1,480 days ago) in Virgo

249.

Comet C/2019 U6 (Lemmon) passes perigee Comet C/2019 U6 (Lemmon) makes its closest approach to the Earth. Sun, 28 Jun 2020 (1,480 days ago) in Sextans

250.

The cluster NGC 6633 is well placed The open star cluster NGC 6633 (mag 4.6) in Ophiuchus culminates at around midnight local time. Sun, 28 Jun 2020 (1,480 days ago) in Ophiuchus

251.

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. Mon, 29 Jun 2020 at 22:12 EDT (1,479 days ago) in Virgo

252.

Messier 22 is well placed The globular cluster M22 (mag 5.2) in Sagittarius, near the Galactic centre, culminates at around midnight local time. Tue, 30 Jun 2020 (1,478 days ago) in Sagittarius

253.

Supernova SN2020nvb discovered A new supernova has been discovered in NGC 4457. Tue, 30 Jun 2020 (1,477 days ago)

254.

Mercury at inferior solar conjunction Mercury passes around the near side of the Sun. Tue, 30 Jun 2020 at 22:47 EDT (1,478 days ago) in Gemini

255.

The cluster IC 4756 is well placed The open star cluster IC 4756 (mag 4.6) in Serpens culminates at around midnight local time. Wed, 01 Jul 2020 (1,477 days ago) in Serpens Cauda

256.

Comet 2P/Encke passes perihelion Comet 2P/Encke makes its closest approach to the Sun. Thu, 02 Jul 2020 (1,476 days ago) in Gemini

257.

Asteroid 532 Herculina at opposition Asteroid 532 Herculina makes closest approach to the Earth. Thu, 02 Jul 2020 at 19:58 EDT (1,476 days ago) in Sagittarius

258.

The Earth at aphelion The Earth reaches its furthest point from the Sun. Sat, 04 Jul 2020 at 07:34 EDT (1,474 days ago) in Pisces

259.

Comet C/2020 F3 (NEOWISE) passes perihelion Comet C/2020 F3 (NEOWISE) makes its closest approach to the Sun. Sat, 04 Jul 2020 (1,474 days ago) in Auriga

260.

Penumbral lunar eclipse There will be an eclipse of the Moon, visible from Antarctica, the Americas and Africa. Sun, 05 Jul 2020 at 00:30 EDT (1,473 days ago) in Sagittarius