401.

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, 01 Feb 2018 at 14:01 EDT (2,337 days ago) in Leo

402.

The cluster IC 2395 is well placed The open star cluster IC 2395 (mag 4.0) in Vela culminates at around midnight local time. Wed, 31 Jan 2018 (2,338 days ago) in Vela

403.

The Omicron Velorum cluster is well placed The Omicron Velorum open star cluster (IC 2391; mag 2.5) in Vela culminates at around midnight local time. Wed, 31 Jan 2018 (2,338 days ago) in Vela

404.

The Beehive cluster is well placed The Beehive open star cluster (M44, NGC 2632, also known as Praesepe; mag 3.1) culminates at around midnight local time. Wed, 31 Jan 2018 (2,338 days ago) in Cancer

405.

Total lunar eclipse There will be an eclipse of the Moon, visible from Russia, Asia, the Americas, Oceania, Alaska and Antarctica. Wed, 31 Jan 2018 at 08:30 EDT (2,338 days ago) in Cancer

406.

Blue Moon The Moon reaches full phase and is visible for much of the night. Wed, 31 Jan 2018 at 08:26 EDT (2,338 days ago) in Cancer

407.

1 Ceres at opposition 1 Ceres lies in the opposite direction to the Sun in the sky, making it closer and brighter than at other times. It is also optimally positioned to be observable for much of the night. Wed, 31 Jan 2018 at 06:51 EDT (2,338 days ago) in Cancer

408.

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, 30 Jan 2018 at 04:57 EDT (2,339 days ago) in Gemini

409.

Lunar occultation of Aldebaran The Moon will pass in front of Aldebaran (Alpha Tauri), creating a lunar occultation visible from countries and territories including Russia, Canada, Alaska and China amongst others. Sat, 27 Jan 2018 at 05:21 EDT (2,342 days ago) in Taurus

410.

Close approach of the Moon and Collinder 50 The Moon and Collinder 50 pass close to each other. Sat, 27 Jan 2018 at 01:42 EDT (2,342 days ago) in Taurus

411.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Thu, 25 Jan 2018 at 06:21 EDT (2,344 days ago) in Sagittarius

412.

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, 24 Jan 2018 at 17:20 EDT (2,345 days ago) in Cetus

413.

Conjunction of Mercury and Pluto Mercury and Pluto share the same right ascension, at a separation of 1°33'. Wed, 24 Jan 2018 at 16:34 EDT (2,345 days ago) in Sagittarius

414.

The cluster NGC 2547 is well placed The open star cluster NGC 2547 (mag 4.7) in Vela culminates at around midnight local time. Tue, 23 Jan 2018 (2,346 days ago) in Vela

415.

Venus at aphelion Venus passes the furthest point along its orbit from the Sun. Tue, 23 Jan 2018 at 03:21 EDT (2,346 days ago) in Capricornus

416.

The cluster NGC 2516 is well placed The open star cluster NGC 2516 (mag 3.8) in Volans culminates at around midnight local time. Sat, 20 Jan 2018 (2,349 days ago) in Carina

417.

Supernova SN2018is discovered A new supernova has been discovered in NGC 5054. Fri, 19 Jan 2018 (2,349 days ago)

418.

γ-Ursae Minorid meteor shower 2018 The γ-Ursae Minorid meteor shower reaches its peak. Fri, 19 Jan 2018 (2,350 days ago) in Ursa Minor

419.

The cluster NGC 2451 is well placed The open star cluster NGC 2451 (mag 2.8) in Puppis culminates at around midnight local time. Wed, 17 Jan 2018 (2,352 days ago) in Puppis

420.

New Moon The Moon disappears into the Sun's glare for a few days. Tue, 16 Jan 2018 at 21:18 EDT (2,353 days ago) in Sagittarius