501.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 12'. Sun, 29 Jun 2025 at 21:04 EDT (346 days away) in Leo

502.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Sun, 29 Jun 2025 at 21:16 EDT (346 days away) in Leo

503.

Lunar occultation of Mars The Moon will pass in front of Mars, creating a lunar occultation visible from Peru, Ecuador, Colombia and Clipperton Island. Sun, 29 Jun 2025 at 21:16 EDT (346 days away) in Leo

504.

Messier 22 is well placed The globular cluster M22 (mag 5.2) in Sagittarius, near the Galactic centre, culminates at around midnight local time. Tue, 01 Jul 2025 (348 days away) in Sagittarius

505.

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, 01 Jul 2025 (348 days away) in Serpens Cauda

506.

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, 02 Jul 2025 at 15:30 EDT (349 days away) in Virgo

507.

Close approach of Mercury and M44 Mercury and M44 pass close to each other. Thu, 03 Jul 2025 at 02:02 EDT (350 days away) in Cancer

508.

The Earth at aphelion The Earth reaches its furthest point from the Sun. Thu, 03 Jul 2025 at 15:54 EDT (350 days away) in Pisces

509.

Lunar occultation of Spica The Moon will pass in front of Spica (Alpha Virginis), creating a lunar occultation visible from countries and territories including Antarctica, Argentina, Chile and Falkland Islands amongst others. Thu, 03 Jul 2025 at 17:40 EDT (350 days away) in Virgo

510.

Conjunction of Venus and Uranus Venus and Uranus share the same right ascension, at a separation of 2°25'. Thu, 03 Jul 2025 at 20:55 EDT (350 days away) in Taurus

511.

Mercury at greatest elongation east Mercury is bright and well placed in the evening sky. Fri, 04 Jul 2025 at 00:37 EDT (351 days away) in Cancer

512.

Neptune enters retrograde motion Neptune reverses its direction of motion across the sky. Fri, 04 Jul 2025 at 17:30 EDT (351 days away) in Pisces

513.

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. Fri, 04 Jul 2025 at 22:28 EDT (351 days away) in Virgo

514.

Lunar occultation of Antares The Moon will pass in front of Antares (Alpha Scorpii), creating a lunar occultation visible from countries and territories including Antarctica, Australia, South Africa and Namibia amongst others. Mon, 07 Jul 2025 at 14:10 EDT (354 days away) in Scorpius

515.

The Great Peacock Globular Cluster is well placed The bright globular cluster NGC 6752 (mag 5.4) in Pavo culminates at around midnight local time. Wed, 09 Jul 2025 (356 days away) in Pavo

516.

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. Thu, 10 Jul 2025 at 06:12 EDT (357 days away) in Sagittarius

517.

Full Moon The Moon reaches full phase and is visible for much of the night. Thu, 10 Jul 2025 at 16:36 EDT (357 days away) in Sagittarius

518.

Saturn enters retrograde motion Saturn reverses its direction of motion across the sky. Sun, 13 Jul 2025 at 00:00 EDT (360 days away) in Pisces

519.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Mon, 14 Jul 2025 at 08:48 EDT (361 days away) in Cancer

520.

Close approach of the Moon, Pluto, Saturn and Neptune The Moon, Pluto, Saturn and Neptune pass close to one another. Wed, 16 Jul 2025 at 03:21 EDT (363 days away) in Pisces