1.

Full Moon The Moon reaches full phase and is visible for much of the night. Wed, 02 Jan 1980 at 04:02 EDT (16,176 days ago) in Gemini

2.

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. Wed, 02 Jan 1980 at 08:18 EDT (16,176 days ago) in Gemini

3.

The Earth at perihelion The Earth reaches its closest point to the Sun. Thu, 03 Jan 1980 at 09:44 EDT (16,175 days ago) in Pisces

4.

Quadrantid meteor shower 1980 The Quadrantid meteor shower reaches its peak. Thu, 03 Jan 1980 (16,174 days ago) in Bootes

5.

Lunar occultation of Regulus The Moon will pass in front of Regulus (Alpha Leonis), creating a lunar occultation visible from countries and territories including Brazil, Argentina, Peru and Bolivia amongst others. Sun, 06 Jan 1980 at 01:58 EDT (16,172 days ago) in Leo

6.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Sun, 06 Jan 1980 at 02:33 EDT (16,172 days ago) in Sagittarius

7.

Saturn enters retrograde motion Saturn reverses its direction of motion across the sky. Sun, 06 Jan 1980 at 17:48 EDT (16,172 days ago) in Virgo

8.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Sun, 06 Jan 1980 at 23:04 EDT (16,171 days ago) in Leo

9.

Lunar occultation of Jupiter The Moon will pass in front of Jupiter, creating a lunar occultation visible from Sub-Saharan Africa, South America, the Caribbean, Bonaire, Saint Eustatius and Saba and Grenada. Sun, 06 Jan 1980 at 23:04 EDT (16,171 days ago) in Leo

10.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 15'. Sun, 06 Jan 1980 at 23:13 EDT (16,171 days ago) in Leo

11.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Mon, 07 Jan 1980 at 09:13 EDT (16,171 days ago) in Leo

12.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 2°06'. Mon, 07 Jan 1980 at 10:33 EDT (16,171 days ago) in Leo

13.

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, 08 Jan 1980 at 03:04 EDT (16,170 days ago) in Virgo

14.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 10'. Tue, 08 Jan 1980 at 09:24 EDT (16,170 days ago) in Virgo

15.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Tue, 08 Jan 1980 at 09:31 EDT (16,170 days ago) in Virgo

16.

Lunar occultation of Saturn The Moon will pass in front of Saturn, creating a lunar occultation visible from countries and territories including Hawaii, Midway Atoll, Kingman Reef and Marshall Islands amongst others. Tue, 08 Jan 1980 at 09:31 EDT (16,170 days ago) in Virgo

17.

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. Thu, 10 Jan 1980 at 06:50 EDT (16,168 days ago) in Virgo

18.

Mars enters retrograde motion Mars reverses its direction of motion across the sky. Wed, 16 Jan 1980 at 01:13 EDT (16,162 days ago) in Leo

19.

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. Wed, 16 Jan 1980 at 23:38 EDT (16,161 days ago) in Sagittarius

20.

New Moon The Moon disappears into the Sun's glare for a few days. Thu, 17 Jan 1980 at 16:20 EDT (16,161 days ago) in Sagittarius