481.

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. Fri, 12 May 2023 at 10:28 EDT (411 days ago) in Capricornus

482.

Messier 5 is well placed The globular cluster M5 (NGC 5904; mag 5.7) in Serpens culminates at around midnight local time. Fri, 12 May 2023 (411 days ago) in Serpens Caput

483.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 3°17'. Sat, 13 May 2023 at 09:07 EDT (410 days ago) in Aquarius

484.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Sat, 13 May 2023 at 11:26 EDT (410 days ago) in Aquarius

485.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Sun, 14 May 2023 at 15:27 EDT (409 days ago) in Aries

486.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Wed, 17 May 2023 at 08:40 EDT (406 days ago) in Pisces

487.

Lunar occultation of Jupiter The Moon will pass in front of Jupiter, creating a lunar occultation visible from countries and territories including Canada, the Contiguous United States, Greenland and Mexico amongst others. Wed, 17 May 2023 at 08:40 EDT (406 days ago) in Pisces

488.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 47'. Wed, 17 May 2023 at 09:18 EDT (406 days ago) in Pisces

489.

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, 17 May 2023 at 20:22 EDT (406 days ago) in Aries

490.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 3°35'. Wed, 17 May 2023 at 21:36 EDT (406 days ago) in Aries

491.

New Moon The Moon disappears into the Sun's glare for a few days. Fri, 19 May 2023 at 11:54 EDT (404 days ago) in Taurus

492.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 2°12'. Tue, 23 May 2023 at 08:09 EDT (400 days ago) in Gemini

493.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Tue, 23 May 2023 at 08:37 EDT (400 days ago) in Gemini

494.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 3°45'. Wed, 24 May 2023 at 13:33 EDT (399 days ago) in Cancer

495.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Wed, 24 May 2023 at 15:19 EDT (399 days ago) in Cancer

496.

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. Thu, 25 May 2023 at 21:38 EDT (398 days ago) in Leo

497.

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. Sat, 27 May 2023 at 11:22 EDT (396 days ago) in Leo

498.

Messier 4 is well placed The globular cluster M4 (NGC 6121; mag 5.4) in Scorpius culminates at around midnight local time. Sun, 28 May 2023 (395 days ago) in Scorpius

499.

Mercury at greatest elongation west Mercury is bright and well placed in the dawn sky. Mon, 29 May 2023 at 03:44 EDT (394 days ago) in Aries

500.

Mars at aphelion Mars passes the furthest point along its orbit from the Sun. Tue, 30 May 2023 at 15:30 EDT (393 days ago) in Cancer