241.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Tue, 20 Jun 2017 at 18:20 EDT (2,503 days ago) in Aries

242.

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 (2,503 days ago) in Scorpius

243.

June solstice 21 June will be the longest day of 2017 in the northern hemisphere. Wed, 21 Jun 2017 at 00:19 EDT (2,502 days ago) in Taurus

244.

Mercury at superior solar conjunction Mercury passes around the far side of the Sun. Wed, 21 Jun 2017 at 10:20 EDT (2,502 days ago) in Gemini

245.

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 (2,501 days ago) in Taurus

246.

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 (2,501 days ago) in Taurus

247.

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 (2,501 days ago) in Sagittarius

248.

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 (2,500 days ago) in Taurus

249.

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 (2,500 days ago) in Orion

250.

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 (2,500 days ago) in Corona Australis

251.

New Moon The Moon disappears into the Sun's glare for a few days. Fri, 23 Jun 2017 at 22:31 EDT (2,500 days ago) in Orion

252.

June Bootid meteor shower 2017 The June Bootid meteor shower reaches its peak. Tue, 27 Jun 2017 (2,496 days ago) in Bootes

253.

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 (2,496 days ago) in Leo

254.

Asteroid 10 Hygiea at opposition Asteroid 10 Hygiea makes closest approach to the Earth. Wed, 28 Jun 2017 at 17:34 EDT (2,495 days ago) in Sagittarius

255.

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 (2,495 days ago) in Ophiuchus

256.

Comet 71P/Clark passes perihelion Comet 71P/Clark makes its closest approach to the Sun. Thu, 29 Jun 2017 (2,494 days ago) in Scorpius

257.

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 (2,493 days ago) in Virgo

258.

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 (2,492 days ago) in Virgo

259.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Sat, 01 Jul 2017 at 05:13 EDT (2,492 days ago) in Virgo

260.

Messier 22 is well placed The globular cluster M22 (mag 5.2) in Sagittarius, near the Galactic centre, culminates at around midnight local time. Sat, 01 Jul 2017 (2,492 days ago) in Sagittarius