301.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Mon, 03 May 2021 at 14:49 EDT (1,117 days ago) in Capricornus

302.

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. Mon, 03 May 2021 at 15:50 EDT (1,117 days ago) in Capricornus

303.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 4°36'. Tue, 04 May 2021 at 17:02 EDT (1,116 days ago) in Aquarius

304.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Tue, 04 May 2021 at 19:55 EDT (1,116 days ago) in Aquarius

305.

η-Aquariid meteor shower 2021 The η-Aquariid meteor shower reaches its peak. Wed, 05 May 2021 (1,114 days ago) in Aquarius

306.

η-Lyrid meteor shower 2021 The η-Lyrid meteor shower reaches its peak. Sat, 08 May 2021 (1,112 days ago) in Lyra

307.

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. Sun, 09 May 2021 at 06:26 EDT (1,111 days ago) in Pisces

308.

New Moon The Moon disappears into the Sun's glare for a few days. Tue, 11 May 2021 at 15:01 EDT (1,109 days ago) in Aries

309.

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. Tue, 11 May 2021 at 17:53 EDT (1,109 days ago) in Aries

310.

Messier 5 is well placed The globular cluster M5 (NGC 5904; mag 5.7) in Serpens culminates at around midnight local time. Tue, 11 May 2021 (1,109 days ago) in Serpens Caput

311.

Mercury at dichotomy Mercury reaches half phase in the evening sky. Wed, 12 May 2021 at 01:20 EDT (1,108 days ago) in Taurus

312.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 42'. Wed, 12 May 2021 at 18:03 EDT (1,108 days ago) in Taurus

313.

Lunar occultation of Venus The Moon will pass in front of Venus, creating a lunar occultation visible from New Zealand, French Polynesia and Pitcairn. Wed, 12 May 2021 at 18:30 EDT (1,108 days ago) in Taurus

314.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 2°08'. Thu, 13 May 2021 at 13:58 EDT (1,107 days ago) in Taurus

315.

Mercury at highest altitude in evening sky Mercury is bright and well placed in the evening sky. Sat, 15 May 2021 (1,105 days ago) in Taurus

316.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 1°28'. Sun, 16 May 2021 at 00:47 EDT (1,104 days ago) in Gemini

317.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Sun, 16 May 2021 at 00:51 EDT (1,104 days ago) in Gemini

318.

Mercury at greatest elongation east Mercury is bright and well placed in the evening sky. Mon, 17 May 2021 at 04:14 EDT (1,103 days ago) in Taurus

319.

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. Wed, 19 May 2021 at 15:13 EDT (1,101 days ago) in Leo

320.

Saturn enters retrograde motion Saturn reverses its direction of motion across the sky. Sun, 23 May 2021 at 05:36 EDT (1,097 days ago) in Capricornus