321.

η-Aquariid meteor shower 2020 The η-Aquariid meteor shower reaches its peak. Tue, 05 May 2020 (1,534 days ago) in Aquarius

322.

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. Tue, 05 May 2020 at 23:02 EDT (1,534 days ago) in Virgo

323.

Full Moon The Moon reaches full phase and is visible for much of the night. Thu, 07 May 2020 at 06:45 EDT (1,532 days ago) in Libra

324.

η-Lyrid meteor shower 2020 The η-Lyrid meteor shower reaches its peak. Fri, 08 May 2020 (1,531 days ago) in Lyra

325.

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. Sat, 09 May 2020 at 07:48 EDT (1,530 days ago) in Ophiuchus

326.

Mercury at perihelion Mercury passes its orbit's closest point to the Sun. Sun, 10 May 2020 at 00:48 EDT (1,529 days ago) in Taurus

327.

Saturn enters retrograde motion Saturn reverses its direction of motion across the sky. Sun, 10 May 2020 at 23:38 EDT (1,529 days ago) in Capricornus

328.

Messier 5 is well placed The globular cluster M5 (NGC 5904; mag 5.7) in Serpens culminates at around midnight local time. Mon, 11 May 2020 (1,528 days ago) in Serpens Caput

329.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 2°15'. Tue, 12 May 2020 at 05:40 EDT (1,527 days ago) in Sagittarius

330.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Tue, 12 May 2020 at 06:09 EDT (1,527 days ago) in Sagittarius

331.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 2°40'. Tue, 12 May 2020 at 14:10 EDT (1,527 days ago) in Capricornus

332.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Tue, 12 May 2020 at 14:54 EDT (1,527 days ago) in Capricornus

333.

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. Thu, 14 May 2020 at 10:03 EDT (1,525 days ago) in Capricornus

334.

Jupiter enters retrograde motion Jupiter reverses its direction of motion across the sky. Thu, 14 May 2020 at 10:33 EDT (1,525 days ago) in Sagittarius

335.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 2°45'. Thu, 14 May 2020 at 22:01 EDT (1,525 days ago) in Aquarius

336.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Thu, 14 May 2020 at 23:51 EDT (1,525 days ago) in Aquarius

337.

Comet C/2017 T2 (PANSTARRS) reaches peak brightness Comet C/2017 T2 (PANSTARRS) is forecast to reach the brightest point in its 2020 apparition. Sat, 16 May 2020 (1,523 days ago) in Camelopardalis

338.

Close approach of Jupiter and Saturn Jupiter and Saturn pass within 4°41' of each other. Mon, 18 May 2020 at 00:42 EDT (1,521 days ago) in Capricornus

339.

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. Mon, 18 May 2020 at 03:44 EDT (1,521 days ago) in Cetus

340.

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. Wed, 20 May 2020 at 10:46 EDT (1,519 days ago) in Cetus