1.

Quadrantid meteor shower 2015 The Quadrantid meteor shower reaches its peak. Sat, 03 Jan 2015 (3,436 days ago) in Bootes

2.

134340 Pluto at solar conjunction 134340 Pluto is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Sun, 04 Jan 2015 at 00:15 EDT (3,436 days ago) in Sagittarius

3.

The Earth at perihelion The Earth reaches its closest point to the Sun. Sun, 04 Jan 2015 at 01:36 EDT (3,436 days ago) in Pisces

4.

Supernova SN2015B discovered A new supernova has been discovered in NGC 4782. Sun, 04 Jan 2015 (3,435 days ago)

5.

Full Moon The Moon reaches full phase and is visible for much of the night. Sun, 04 Jan 2015 at 23:53 EDT (3,435 days ago) in Gemini

6.

Supernova ASASSN-15aj discovered A new supernova has been discovered in NGC 3449. Wed, 07 Jan 2015 (3,432 days ago)

7.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Thu, 08 Jan 2015 at 00:37 EDT (3,432 days ago) in Leo

8.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 5°03'. Thu, 08 Jan 2015 at 03:21 EDT (3,432 days ago) in Leo

9.

Supernova ASASSN-15ak discovered A new supernova has been discovered in UGC 110. Thu, 08 Jan 2015 (3,431 days ago)

10.

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. Tue, 13 Jan 2015 at 04:47 EDT (3,427 days ago) in Virgo

11.

Mercury at greatest elongation east Mercury is bright and well placed in the evening sky. Wed, 14 Jan 2015 at 16:55 EDT (3,426 days ago) in Capricornus

12.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 1°51'. Fri, 16 Jan 2015 at 06:31 EDT (3,424 days ago) in Libra

13.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Fri, 16 Jan 2015 at 06:59 EDT (3,424 days ago) in Libra

14.

Mercury at dichotomy Mercury reaches half phase in the evening sky. Fri, 16 Jan 2015 at 09:01 EDT (3,424 days ago) in Capricornus

15.

Mercury at highest altitude in evening sky Mercury is bright and well placed in the evening sky. Fri, 16 Jan 2015 (3,424 days ago) in Capricornus

16.

γ-Ursae Minorid meteor shower 2015 The γ-Ursae Minorid meteor shower reaches its peak. Mon, 19 Jan 2015 (3,421 days ago) in Ursa Minor

17.

Conjunction of Mars and Neptune Mars and Neptune share the same right ascension, at a separation of 13'. Mon, 19 Jan 2015 at 16:25 EDT (3,421 days ago) in Aquarius

18.

Close approach of Mars and Neptune Mars and Neptune pass within 12' of each other. Mon, 19 Jan 2015 at 19:14 EDT (3,421 days ago) in Aquarius

19.

New Moon The Moon disappears into the Sun's glare for a few days. Tue, 20 Jan 2015 at 08:14 EDT (3,420 days ago) in Sagittarius

20.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 2°58'. Wed, 21 Jan 2015 at 12:38 EDT (3,419 days ago) in Capricornus