261.

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 (2,513 days ago) in Ophiuchus

262.

Asteroid 10 Hygiea at opposition Asteroid 10 Hygiea makes closest approach to the Earth. Wed, 28 Jun 2017 at 19:58 EDT (2,513 days ago) in Sagittarius

263.

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 (2,514 days ago) in Leo

264.

June Bootid meteor shower 2017 The June Bootid meteor shower reaches its peak. Tue, 27 Jun 2017 (2,514 days ago) in Bootes

265.

Comet 71P/Clark passes perihelion Comet 71P/Clark makes its closest approach to the Sun. Sun, 25 Jun 2017 (2,516 days ago) in Scorpius

266.

New Moon The Moon disappears into the Sun's glare for a few days. Fri, 23 Jun 2017 at 22:31 EDT (2,518 days ago) in Orion

267.

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 (2,518 days ago) in Corona Australis

268.

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 (2,518 days ago) in Orion

269.

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 (2,518 days ago) in Taurus

270.

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 (2,519 days ago) in Sagittarius

271.

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 (2,519 days ago) in Taurus

272.

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 (2,519 days ago) in Taurus

273.

Mercury at superior solar conjunction Mercury passes around the far side of the Sun. Wed, 21 Jun 2017 at 10:20 EDT (2,520 days ago) in Gemini

274.

June solstice 21 June will be the longest day of 2017 in the northern hemisphere. Wed, 21 Jun 2017 at 00:19 EDT (2,520 days ago) in Taurus

275.

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 (2,521 days ago) in Scorpius

276.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Tue, 20 Jun 2017 at 18:20 EDT (2,521 days ago) in Aries

277.

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 (2,521 days ago) in Aries

278.

Mercury at perihelion Mercury passes its orbit's closest point to the Sun. Mon, 19 Jun 2017 at 09:42 EDT (2,522 days ago) in Taurus

279.

The cluster IC 4665 is well placed The open star cluster IC 4665 (mag 4.2) in Ophiuchus culminates at around midnight local time. Sun, 18 Jun 2017 (2,523 days ago) in Ophiuchus

280.

Asteroid 6 Hebe at opposition Asteroid 6 Hebe makes closest approach to the Earth. Sun, 18 Jun 2017 at 00:46 EDT (2,523 days ago) in Ophiuchus