421.

Jupiter at perigee Jupiter reaches its closest point to the Earth – marking the best time to observe it in 1970. Sat, 08 Apr 2017 at 17:23 EDT (2,636 days ago) in Virgo

422.

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. Fri, 07 Apr 2017 at 17:31 EDT (2,637 days ago) in Virgo

423.

Lunar occultation of Regulus The Moon will pass in front of Regulus (Alpha Leonis), creating a lunar occultation visible from Argentina, Chile, French Polynesia and Pitcairn. Fri, 07 Apr 2017 at 00:33 EDT (2,637 days ago) in Leo

424.

Saturn enters retrograde motion Saturn reverses its direction of motion across the sky. Thu, 06 Apr 2017 at 01:18 EDT (2,638 days ago) in Sagittarius

425.

The Jewel Box cluster is well placed The Jewel Box open star cluster (NGC 4755, also known as the Kappa Crucis Cluster; mag 4.2) in Crux culminates at around midnight local time. Wed, 05 Apr 2017 (2,639 days ago) in Crux

426.

Messier 94 is well placed M94 (mag 8.2), a spiral galaxy in Canes Venatici culminates at around midnight local time. Tue, 04 Apr 2017 (2,640 days ago) in Canes Venatici

427.

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. Mon, 03 Apr 2017 at 14:39 EDT (2,641 days ago) in Gemini

428.

The Sombrero Galaxy is well placed The Sombrero Galaxy M104 (NGC 4594; mag 8.6) in Virgo culminates at around midnight local time. Sat, 01 Apr 2017 (2,643 days ago) in Virgo

429.

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, China, Japan and North Korea amongst others. Sat, 01 Apr 2017 at 05:08 EDT (2,643 days ago) in Taurus

430.

Mercury at greatest elongation east Mercury is bright and well placed in the evening sky. Sat, 01 Apr 2017 at 02:00 EDT (2,643 days ago) in Aries

431.

Mercury at highest altitude in evening sky Mercury is bright and well placed in the evening sky. Sat, 01 Apr 2017 (2,643 days ago) in Aries

432.

Close approach of the Moon and Collinder 50 The Moon and Collinder 50 pass close to each other. Sat, 01 Apr 2017 at 01:30 EDT (2,643 days ago) in Taurus

433.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 5°29'. Thu, 30 Mar 2017 at 09:02 EDT (2,645 days ago) in Aries

434.

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. Thu, 30 Mar 2017 at 08:32 EDT (2,645 days ago) in Aries

435.

Mercury at dichotomy Mercury reaches half phase in the evening sky. Thu, 30 Mar 2017 at 01:39 EDT (2,645 days ago) in Pisces

436.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 6°35'. Wed, 29 Mar 2017 at 03:15 EDT (2,646 days ago) in Pisces

437.

New Moon The Moon disappears into the Sun's glare for a few days. Mon, 27 Mar 2017 at 22:58 EDT (2,648 days ago) in Cetus

438.

Conjunction of Mercury and Uranus Mercury and Uranus share the same right ascension, at a separation of 2°24'. Mon, 27 Mar 2017 at 01:57 EDT (2,648 days ago) in Pisces

439.

Venus at inferior solar conjunction Venus passes around the near side of the Sun. Sat, 25 Mar 2017 at 06:12 EDT (2,650 days ago) in Pisces

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. Sat, 25 Mar 2017 at 05:41 EDT (2,650 days ago) in Aquarius