161.

The Moon at aphelion The Moon recedes to its orbit's furthest point from the Sun, which happens each month around the time of full moon. Tue, 18 Jun 2019 at 04:14 EDT (1,768 days ago) in Sagittarius

162.

Conjunction of Mercury and Mars Mercury and Mars share the same right ascension, at a separation of 14'. Tue, 18 Jun 2019 at 10:35 EDT (1,768 days ago) in Gemini

163.

Close approach of Mercury and Mars Mercury and Mars pass within 13' of each other. Tue, 18 Jun 2019 at 13:57 EDT (1,768 days ago) in Gemini

164.

The cluster IC 4665 is well placed The open star cluster IC 4665 (mag 4.2) in Ophiuchus culminates at around midnight local time. Tue, 18 Jun 2019 (1,768 days ago) in Ophiuchus

165.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 26'. Tue, 18 Jun 2019 at 23:45 EDT (1,768 days ago) in Sagittarius

166.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Tue, 18 Jun 2019 at 23:48 EDT (1,768 days ago) in Sagittarius

167.

Lunar occultation of Saturn The Moon will pass in front of Saturn, creating a lunar occultation visible from countries and territories including Argentina, South Africa, Namibia and Chile amongst others. Tue, 18 Jun 2019 at 23:48 EDT (1,768 days ago) in Sagittarius

168.

The Ptolemy cluster is well placed The Ptolemy Cluster (M7, NGC 6475; mag 3.3) in Scorpius culminates at around midnight local time. Thu, 20 Jun 2019 (1,766 days ago) in Scorpius

169.

Neptune enters retrograde motion Neptune reverses its direction of motion across the sky. Fri, 21 Jun 2019 at 10:13 EDT (1,765 days ago) in Aquarius

170.

June solstice 21 June will be the longest day of 2019 in the northern hemisphere. Fri, 21 Jun 2019 at 11:47 EDT (1,765 days ago) in Taurus

171.

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. Sun, 23 Jun 2019 at 03:49 EDT (1,763 days ago) in Aquarius

172.

The Lagoon Nebula is well placed The Lagoon Nebula (M8; mag 5.8) in Sagittarius culminates at around midnight local time. Sun, 23 Jun 2019 (1,763 days ago) in Sagittarius

173.

Mercury at greatest elongation east Mercury is bright and well placed in the evening sky. Sun, 23 Jun 2019 at 20:56 EDT (1,763 days ago) in Gemini

174.

NGC 6541 is well placed The globular cluster NGC 6541 (mag 6.6) in Corona Australis culminates at around midnight local time. Mon, 24 Jun 2019 (1,762 days ago) in Corona Australis

175.

Moon at Last Quarter The Moon reaches last quarter phase – rising in the east at around midnight and appearing high in the sky by sunrise. Tue, 25 Jun 2019 at 05:47 EDT (1,761 days ago) in Pisces

176.

Supernova SN2019iex discovered A new supernova has been discovered in NGC 7769. Tue, 25 Jun 2019 (1,760 days ago)

177.

June Bootid meteor shower 2019 The June Bootid meteor shower reaches its peak. Thu, 27 Jun 2019 (1,759 days ago) in Bootes

178.

The cluster NGC 6633 is well placed The open star cluster NGC 6633 (mag 4.6) in Ophiuchus culminates at around midnight local time. Sat, 29 Jun 2019 (1,757 days ago) in Ophiuchus

179.

Messier 22 is well placed The globular cluster M22 (mag 5.2) in Sagittarius, near the Galactic centre, culminates at around midnight local time. Mon, 01 Jul 2019 (1,755 days ago) in Sagittarius

180.

Asteroid 18 Melpomene at opposition Asteroid 18 Melpomene makes closest approach to the Earth. Tue, 02 Jul 2019 at 03:10 EDT (1,754 days ago) in Scutum