321.

Messier 10 is well placed The globular cluster M10 (NGC 6254; mag 6.6) in Ophiuchus culminates at around midnight local time. Sat, 05 Jun 2021 (1,138 days ago) in Ophiuchus

322.

Messier 62 is well placed The globular cluster M62 (NGC 6266; mag 6.4) in Ophiuchus culminates at around midnight local time. Sun, 06 Jun 2021 (1,137 days ago) in Ophiuchus

323.

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. Mon, 07 Jun 2021 at 22:27 EDT (1,136 days ago) in Aries

324.

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. Tue, 08 Jun 2021 at 23:43 EDT (1,135 days ago) in Taurus

325.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Wed, 09 Jun 2021 at 21:21 EDT (1,134 days ago) in Taurus

326.

Annular solar eclipse There will be an eclipse of the Sun, visible from eastern Canada, western Greenland and eastern Russia. Thu, 10 Jun 2021 at 06:42 EDT (1,133 days ago) in Taurus

327.

New Moon The Moon disappears into the Sun's glare for a few days. Thu, 10 Jun 2021 at 06:54 EDT (1,133 days ago) in Taurus

328.

Daytime Arietid meteor shower 2021 The Daytime Arietid meteor shower reaches its peak. Thu, 10 Jun 2021 (1,133 days ago) in Aries

329.

Mercury at inferior solar conjunction Mercury passes around the near side of the Sun. Thu, 10 Jun 2021 at 21:07 EDT (1,133 days ago) in Taurus

330.

Messier 92 is well placed The globular cluster M92 (NGC 6341; mag 6.5) in Hercules culminates at around midnight local time. Fri, 11 Jun 2021 (1,132 days ago) in Hercules

331.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 1°28'. Sat, 12 Jun 2021 at 02:42 EDT (1,131 days ago) in Gemini

332.

Venus at perihelion Venus passes its orbit's closest point to the Sun. Sat, 12 Jun 2021 at 17:18 EDT (1,131 days ago) in Gemini

333.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 2°48'. Sun, 13 Jun 2021 at 15:52 EDT (1,130 days ago) in Cancer

334.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Sun, 13 Jun 2021 at 16:47 EDT (1,130 days ago) in Cancer

335.

NGC 6388 is well placed The globular cluster NGC 6388 (mag 6.8) in Scorpius culminates at around midnight local time. Tue, 15 Jun 2021 (1,128 days ago) in Scorpius

336.

The Butterfly cluster is well placed The Butterfly open star cluster (M6, NGC 6405; mag 4.2) in Scorpius culminates at around midnight local time. Wed, 16 Jun 2021 (1,127 days ago) in Scorpius

337.

Comet 15P/Finlay passes perigee Comet 15P/Finlay makes its closest approach to the Earth. Thu, 17 Jun 2021 (1,126 days ago) in Pisces

338.

NGC 6397 is well placed The globular cluster NGC 6397 (mag 5.6) in Ara culminates at around midnight local time. Thu, 17 Jun 2021 (1,126 days ago) in Ara

339.

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. Thu, 17 Jun 2021 at 23:54 EDT (1,126 days ago) in Virgo

340.

The cluster IC 4665 is well placed The open star cluster IC 4665 (mag 4.2) in Ophiuchus culminates at around midnight local time. Fri, 18 Jun 2021 (1,125 days ago) in Ophiuchus