301.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 2°42'. Sat, 01 Jul 2017 at 03:29 EDT (2,552 days ago) in Virgo

302.

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. Fri, 30 Jun 2017 at 20:51 EDT (2,553 days ago) in Virgo

303.

The cluster NGC 6633 is well placed The open star cluster NGC 6633 (mag 4.6) in Ophiuchus culminates at around midnight local time. Wed, 28 Jun 2017 (2,555 days ago) in Ophiuchus

304.

Asteroid 10 Hygiea at opposition Asteroid 10 Hygiea makes closest approach to the Earth. Wed, 28 Jun 2017 at 19:58 EDT (2,555 days ago) in Sagittarius

305.

Lunar occultation of Regulus The Moon will pass in front of Regulus (Alpha Leonis), creating a lunar occultation visible from Peru and Ecuador. Tue, 27 Jun 2017 at 20:49 EDT (2,556 days ago) in Leo

306.

June Bootid meteor shower 2017 The June Bootid meteor shower reaches its peak. Tue, 27 Jun 2017 (2,556 days ago) in Bootes

307.

Comet 71P/Clark passes perihelion Comet 71P/Clark makes its closest approach to the Sun. Sun, 25 Jun 2017 (2,558 days ago) in Scorpius

308.

New Moon The Moon disappears into the Sun's glare for a few days. Fri, 23 Jun 2017 at 22:31 EDT (2,560 days ago) in Orion

309.

NGC 6541 is well placed The globular cluster NGC 6541 (mag 6.6) in Corona Australis culminates at around midnight local time. Fri, 23 Jun 2017 (2,560 days ago) in Corona Australis

310.

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. Fri, 23 Jun 2017 at 14:50 EDT (2,560 days ago) in Orion

311.

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. Fri, 23 Jun 2017 at 06:51 EDT (2,560 days ago) in Taurus

312.

The Lagoon Nebula is well placed The Lagoon Nebula (M8; mag 5.8) in Sagittarius culminates at around midnight local time. Thu, 22 Jun 2017 (2,561 days ago) in Sagittarius

313.

Lunar occultation of Aldebaran The Moon will pass in front of Aldebaran (Alpha Tauri), creating a lunar occultation visible from Mexico. Thu, 22 Jun 2017 at 10:37 EDT (2,561 days ago) in Taurus

314.

Close approach of the Moon and Collinder 50 The Moon and Collinder 50 pass close to each other. Thu, 22 Jun 2017 at 07:08 EDT (2,561 days ago) in Taurus

315.

Mercury at superior solar conjunction Mercury passes around the far side of the Sun. Wed, 21 Jun 2017 at 10:20 EDT (2,562 days ago) in Gemini

316.

June solstice 21 June will be the longest day of 2017 in the northern hemisphere. Wed, 21 Jun 2017 at 00:19 EDT (2,562 days ago) in Taurus

317.

The Ptolemy cluster is well placed The Ptolemy Cluster (M7, NGC 6475; mag 3.3) in Scorpius culminates at around midnight local time. Tue, 20 Jun 2017 (2,563 days ago) in Scorpius

318.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Tue, 20 Jun 2017 at 18:20 EDT (2,563 days ago) in Aries

319.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 2°22'. Tue, 20 Jun 2017 at 17:11 EDT (2,563 days ago) in Aries

320.

Mercury at perihelion Mercury passes its orbit's closest point to the Sun. Mon, 19 Jun 2017 at 09:42 EDT (2,564 days ago) in Taurus