421.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 4°01'. Sun, 27 Jun 2021 at 05:26 EDT (1,091 days ago) in Capricornus

422.

June Bootid meteor shower 2021 The June Bootid meteor shower reaches its peak. Sun, 27 Jun 2021 (1,091 days ago) in Bootes

423.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Sun, 27 Jun 2021 at 07:05 EDT (1,091 days ago) in Capricornus

424.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 4°27'. Mon, 28 Jun 2021 at 14:41 EDT (1,090 days ago) in Aquarius

425.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Mon, 28 Jun 2021 at 17:27 EDT (1,090 days ago) in Aquarius

426.

The cluster NGC 6633 is well placed The open star cluster NGC 6633 (mag 4.6) in Ophiuchus culminates at around midnight local time. Mon, 28 Jun 2021 (1,090 days ago) in Ophiuchus

427.

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. Thu, 01 Jul 2021 at 17:11 EDT (1,087 days ago) in Cetus

428.

Messier 22 is well placed The globular cluster M22 (mag 5.2) in Sagittarius, near the Galactic centre, culminates at around midnight local time. Thu, 01 Jul 2021 (1,087 days ago) in Sagittarius

429.

The cluster IC 4756 is well placed The open star cluster IC 4756 (mag 4.6) in Serpens culminates at around midnight local time. Thu, 01 Jul 2021 (1,087 days ago) in Serpens Cauda

430.

Close approach of Venus and M44 Venus and M44 pass close to each other. Sat, 03 Jul 2021 at 07:41 EDT (1,085 days ago) in Cancer

431.

Mercury at greatest elongation west Mercury is bright and well placed in the dawn sky. Mon, 05 Jul 2021 at 00:11 EDT (1,083 days ago) in Taurus

432.

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 (1,083 days ago) in Taurus

433.

The Earth at aphelion The Earth reaches its furthest point from the Sun. Mon, 05 Jul 2021 at 18:27 EDT (1,083 days ago) in Pisces

434.

Comet 15P/Finlay reaches peak brightness Comet 15P/Finlay is forecast to reach the brightest point in its 2021 apparition. Tue, 06 Jul 2021 (1,082 days ago) in Aries

435.

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 (1,080 days ago) in Taurus

436.

Mercury at highest altitude in morning sky Mercury is bright and well placed in the dawn sky. Fri, 09 Jul 2021 (1,079 days ago) in Taurus

437.

Mercury at dichotomy Mercury reaches half phase in the dawn sky. Fri, 09 Jul 2021 at 13:48 EDT (1,079 days ago) in Taurus

438.

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 (1,079 days ago) in Pavo

439.

New Moon The Moon disappears into the Sun's glare for a few days. Fri, 09 Jul 2021 at 21:17 EDT (1,079 days ago) in Gemini

440.

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 (1,079 days ago) in Gemini