321.

Conjunction of Mars and Mercury Mars and Mercury share the same right ascension, at a separation of 3°50'. Sun, 07 Jul 2019 at 09:46 EDT (1,820 days ago) in Cancer

322.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Sun, 07 Jul 2019 at 03:13 EDT (1,820 days ago) in Cancer

323.

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, 05 Jul 2019 at 00:59 EDT (1,822 days ago) in Cancer

324.

The Earth at aphelion The Earth reaches its furthest point from the Sun. Thu, 04 Jul 2019 at 18:10 EDT (1,823 days ago) in Pisces

325.

Close approach of the Moon and M44 The Moon and M44 pass close to each other. Thu, 04 Jul 2019 at 11:43 EDT (1,823 days ago) in Cancer

326.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 3°15'. Thu, 04 Jul 2019 at 04:35 EDT (1,823 days ago) in Cancer

327.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 5'18". Thu, 04 Jul 2019 at 01:39 EDT (1,823 days ago) in Cancer

328.

The cluster IC 4756 is well placed The open star cluster IC 4756 (mag 4.6) in Serpens culminates at around midnight local time. Tue, 02 Jul 2019 (1,825 days ago) in Serpens Cauda

329.

Total solar eclipse There will be an eclipse of the Sun, visible from Argentina and northern Chile. Tue, 02 Jul 2019 at 15:23 EDT (1,825 days ago) in Gemini

330.

New Moon The Moon disappears into the Sun's glare for a few days. Tue, 02 Jul 2019 at 15:17 EDT (1,825 days ago) in Gemini

331.

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, 02 Jul 2019 at 08:23 EDT (1,825 days ago) in Gemini

332.

Asteroid 18 Melpomene at opposition Asteroid 18 Melpomene makes closest approach to the Earth. Mon, 01 Jul 2019 at 22:22 EDT (1,826 days ago) in Scutum

333.

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 (1,826 days ago) in Sagittarius

334.

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 (1,828 days ago) in Ophiuchus

335.

June Bootid meteor shower 2019 The June Bootid meteor shower reaches its peak. Thu, 27 Jun 2019 (1,830 days ago) in Bootes

336.

Supernova SN2019iex discovered A new supernova has been discovered in NGC 7769. Tue, 25 Jun 2019 (1,831 days ago)

337.

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 (1,832 days ago) in Pisces

338.

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 (1,833 days ago) in Corona Australis

339.

Mercury at greatest elongation east Mercury is bright and well placed in the evening sky. Sun, 23 Jun 2019 at 20:56 EDT (1,834 days ago) in Gemini

340.

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 (1,834 days ago) in Sagittarius