401.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 1°47'. Tue, 17 Oct 2017 at 06:05 EDT (2,407 days ago) in Virgo

402.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Tue, 17 Oct 2017 at 07:12 EDT (2,407 days ago) in Virgo

403.

136108 Haumea at solar conjunction 136108 Haumea is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Tue, 17 Oct 2017 at 12:07 EDT (2,407 days ago) in Bootes

404.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 1°58'. Tue, 17 Oct 2017 at 20:21 EDT (2,407 days ago) in Virgo

405.

ε-Geminid meteor shower 2017 The ε-Geminid meteor shower reaches its peak. Wed, 18 Oct 2017 (2,406 days ago) in Gemini

406.

Uranus at opposition Uranus lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Thu, 19 Oct 2017 at 13:26 EDT (2,405 days ago) in Pisces

407.

New Moon The Moon disappears into the Sun's glare for a few days. Thu, 19 Oct 2017 at 15:13 EDT (2,405 days ago) in Virgo

408.

Orionid meteor shower 2017 The Orionid meteor shower reaches its peak. Sat, 21 Oct 2017 (2,403 days ago) in Orion

409.

Comet 96P/Machholz passes perihelion Comet 96P/Machholz makes its closest approach to the Sun. Sat, 21 Oct 2017 (2,403 days ago) in Virgo

410.

Asteroid 2 Pallas at opposition Asteroid 2 Pallas makes closest approach to the Earth. Sun, 22 Oct 2017 at 15:10 EDT (2,402 days ago) in Eridanus

411.

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. Sun, 22 Oct 2017 at 15:24 EDT (2,402 days ago) in Scorpius

412.

Leonis Minorid meteor shower 2017 The Leonis Minorid meteor shower reaches its peak. Tue, 24 Oct 2017 (2,400 days ago) in Leo Minor

413.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 3°15'. Tue, 24 Oct 2017 at 07:36 EDT (2,400 days ago) in Ophiuchus

414.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Tue, 24 Oct 2017 at 08:13 EDT (2,400 days ago) in Ophiuchus

415.

Jupiter at apogee Jupiter reaches its furthest point from the Earth, as it passes around the far side of the Sun. Tue, 24 Oct 2017 at 18:19 EDT (2,400 days ago) in Virgo

416.

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. Tue, 24 Oct 2017 at 22:25 EDT (2,400 days ago) in Sagittarius

417.

Jupiter at solar conjunction Jupiter is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Thu, 26 Oct 2017 at 13:58 EDT (2,398 days ago) in Virgo

418.

The Perseus Double Cluster is well placed The Perseus Double Cluster (NGC 869 and NGC 884; combined mag 4.3) culminates at around midnight local time. Thu, 26 Oct 2017 (2,398 days ago) in Perseus

419.

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. Fri, 27 Oct 2017 at 18:22 EDT (2,397 days ago) in Capricornus

420.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Sun, 29 Oct 2017 at 08:05 EDT (2,395 days ago) in Libra