661.

Mercury at greatest elongation west Mercury is bright and well placed in the dawn sky. Mon, 05 Jul 2021 at 00:11 EDT (1,108 days ago) in Taurus

662.

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, 05 Jul 2021 at 10:46 EDT (1,108 days ago) in Taurus

663.

The Earth at aphelion The Earth reaches its furthest point from the Sun. Mon, 05 Jul 2021 at 18:27 EDT (1,108 days ago) in Pisces

664.

Comet 15P/Finlay reaches peak brightness Comet 15P/Finlay is forecast to reach the brightest point in its 2021 apparition. Tue, 06 Jul 2021 (1,107 days ago) in Aries

665.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 3°45'. Thu, 08 Jul 2021 at 00:39 EDT (1,105 days ago) in Taurus

666.

Mercury at highest altitude in morning sky Mercury is bright and well placed in the dawn sky. Fri, 09 Jul 2021 (1,104 days ago) in Taurus

667.

Mercury at dichotomy Mercury reaches half phase in the dawn sky. Fri, 09 Jul 2021 at 13:48 EDT (1,104 days ago) in Taurus

668.

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. Fri, 09 Jul 2021 (1,104 days ago) in Pavo

669.

New Moon The Moon disappears into the Sun's glare for a few days. Fri, 09 Jul 2021 at 21:17 EDT (1,104 days ago) in Gemini

670.

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. Fri, 09 Jul 2021 at 21:50 EDT (1,104 days ago) in Gemini

671.

Comet C/2020 T2 (Palomar) passes perihelion Comet C/2020 T2 (Palomar) makes its closest approach to the Sun. Sat, 10 Jul 2021 (1,103 days ago) in Virgo

672.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 3°15'. Mon, 12 Jul 2021 at 05:09 EDT (1,101 days ago) in Leo

673.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 3°46'. Mon, 12 Jul 2021 at 06:10 EDT (1,101 days ago) in Leo

674.

Mars at aphelion Mars passes the furthest point along its orbit from the Sun. Mon, 12 Jul 2021 at 21:36 EDT (1,101 days ago) in Leo

675.

Conjunction of Venus and Mars Venus and Mars share the same right ascension, at a separation of 29'. Tue, 13 Jul 2021 at 03:08 EDT (1,100 days ago) in Leo

676.

Comet 15P/Finlay passes perihelion Comet 15P/Finlay makes its closest approach to the Sun. Tue, 13 Jul 2021 (1,100 days ago) in Taurus

677.

Close approach of Venus and Mars Venus and Mars pass within 28' of each other. Tue, 13 Jul 2021 at 09:34 EDT (1,100 days ago) in Leo

678.

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, 17 Jul 2021 at 06:11 EDT (1,096 days ago) in Virgo

679.

Messier 55 is well placed The globular cluster M55 (NGC 6809l; mag 6.3) in Sagittarius culminates at around midnight local time. Sat, 17 Jul 2021 (1,096 days ago) in Sagittarius

680.

Asteroid 6 Hebe at opposition Asteroid 6 Hebe makes closest approach to the Earth. Sun, 18 Jul 2021 at 07:58 EDT (1,095 days ago) in Aquila