1.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Sun, 02 Jan 2000 at 13:28 EDT (8,941 days ago) in Sagittarius

2.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 2°36'. Sun, 02 Jan 2000 at 22:46 EDT (8,941 days ago) in Scorpius

3.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Mon, 03 Jan 2000 at 00:09 EDT (8,940 days ago) in Scorpius

4.

The Earth at perihelion The Earth reaches its closest point to the Sun. Mon, 03 Jan 2000 at 00:17 EDT (8,940 days ago) in Pisces

5.

Quadrantid meteor shower 2000 The Quadrantid meteor shower reaches its peak. Tue, 04 Jan 2000 (8,939 days ago) in Bootes

6.

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, 04 Jan 2000 at 07:22 EDT (8,939 days ago) in Ophiuchus

7.

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. Thu, 06 Jan 2000 at 08:11 EDT (8,937 days ago) in Sagittarius

8.

New Moon The Moon disappears into the Sun's glare for a few days. Thu, 06 Jan 2000 at 13:15 EDT (8,937 days ago) in Sagittarius

9.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 1°53'. Mon, 10 Jan 2000 at 13:36 EDT (8,933 days ago) in Aquarius

10.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Mon, 10 Jan 2000 at 14:43 EDT (8,933 days ago) in Aquarius

11.

Conjunction of Venus and Pluto Venus and Pluto share the same right ascension, at a separation of 9°10'. Mon, 10 Jan 2000 at 18:29 EDT (8,933 days ago) in Ophiuchus

12.

Saturn ends retrograde motion Saturn returns to its usual eastward motion after opposition. Tue, 11 Jan 2000 at 23:45 EDT (8,931 days ago) in Aries

13.

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, 14 Jan 2000 at 08:34 EDT (8,929 days ago) in Pisces

14.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 4°19'. Fri, 14 Jan 2000 at 10:00 EDT (8,929 days ago) in Pisces

15.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Fri, 14 Jan 2000 at 12:41 EDT (8,929 days ago) in Pisces

16.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 3°02'. Sat, 15 Jan 2000 at 11:45 EDT (8,928 days ago) in Aries

17.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Sat, 15 Jan 2000 at 13:25 EDT (8,928 days ago) in Aries

18.

Mercury at superior solar conjunction Mercury passes around the far side of the Sun. Sat, 15 Jan 2000 at 20:31 EDT (8,928 days ago) in Sagittarius

19.

Close approach of the Moon and Collinder 50 The Moon and Collinder 50 pass close to each other. Mon, 17 Jan 2000 at 10:44 EDT (8,926 days ago) in Taurus

20.

Lunar occultation of Aldebaran The Moon will pass in front of Aldebaran (Alpha Tauri), creating a lunar occultation visible from Greenland, Canada and Russia. Mon, 17 Jan 2000 at 14:19 EDT (8,926 days ago) in Taurus