421.

Saturn at opposition Saturn lies in the opposite direction to the Sun in the sky, making it slightly closer, brighter and larger than at other times. It is also optimally positioned to be observable for much of the night. Mon, 02 Aug 2021 at 02:06 EDT (1,021 days ago) in Capricornus

422.

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, 02 Aug 2021 at 03:35 EDT (1,021 days ago) in Taurus

423.

New Moon The Moon disappears into the Sun's glare for a few days. Sun, 08 Aug 2021 at 09:51 EDT (1,015 days ago) in Cancer

424.

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. Mon, 09 Aug 2021 at 14:41 EDT (1,014 days ago) in Leo

425.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 4°17'. Mon, 09 Aug 2021 at 20:42 EDT (1,014 days ago) in Leo

426.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 4°17'. Wed, 11 Aug 2021 at 02:59 EDT (1,012 days ago) in Virgo

427.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Wed, 11 Aug 2021 at 06:26 EDT (1,012 days ago) in Virgo

428.

Perseid meteor shower 2021 The Perseid meteor shower reaches its peak. Thu, 12 Aug 2021 (1,011 days ago) in Perseus

429.

Messier 15 is well placed The globular cluster M15 (NGC 7078; mag 6.3) in Pegasus culminates at around midnight local time. Sat, 14 Aug 2021 (1,009 days ago) in Pegasus

430.

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. Sun, 15 Aug 2021 at 11:20 EDT (1,008 days ago) in Libra

431.

Messier 2 is well placed The globular cluster M2 (NGC 7089; mag 6.6) in Aquarius culminates at around midnight local time. Sun, 15 Aug 2021 (1,008 days ago) in Aquarius

432.

Lunar occultation of Beta1 Scorpii The Moon will pass in front of Beta1 Scorpii (Acrab), creating a lunar occultation visible from Antarctica, New Zealand and Macquarie Island. Mon, 16 Aug 2021 at 05:00 EDT (1,007 days ago) in Scorpius

433.

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, 17 Aug 2021 at 05:15 EDT (1,006 days ago) in Ophiuchus

434.

κ-Cygnid meteor shower 2021 The κ-Cygnid meteor shower reaches its peak. Tue, 17 Aug 2021 (1,005 days ago) in Draco

435.

Lunar occultation of Sigma Sagittarii The Moon will pass in front of Sigma Sagittarii (Nunki), creating a lunar occultation visible from the Americas, Bonaire, Saint Eustatius and Saba, Clipperton Island, Grenada and Navassa Island. Wed, 18 Aug 2021 at 23:28 EDT (1,005 days ago) in Sagittarius

436.

Conjunction of Mercury and Mars Mercury and Mars share the same right ascension, at a separation of 4'48". Thu, 19 Aug 2021 at 00:09 EDT (1,004 days ago) in Leo

437.

Asteroid 43 Ariadne at opposition Asteroid 43 Ariadne makes closest approach to the Earth. Thu, 19 Aug 2021 at 07:58 EDT (1,004 days ago) in Aquarius

438.

Jupiter at opposition Jupiter lies in the opposite direction to the Sun in the sky, making it slightly closer, brighter and larger than at other times. It is also optimally positioned to be observable for much of the night. Thu, 19 Aug 2021 at 20:20 EDT (1,004 days ago) in Capricornus

439.

Uranus enters retrograde motion Uranus reverses its direction of motion across the sky. Thu, 19 Aug 2021 at 20:57 EDT (1,004 days ago) in Aries

440.

Jupiter at perigee Jupiter reaches its closest point to the Earth – marking the best time to observe it in 1970. Fri, 20 Aug 2021 at 01:25 EDT (1,003 days ago) in Capricornus