- 3 Jul, 07:58 Vilnius time: new moon.
- 11 Jul, 03:18 Vilnius time: first quarter.
- 18 Jul, 20:41 Vilnius time: full moon, traditionally the Buck Moon.
- 25 Jul, 16:31 Vilnius time: last quarter.
- During July 1989 the Moon passes through all eight phases. One full cycle takes about 29.5 days.
- The next full moon after this month is on 17 August 1989 (August 1989).
Moon phase times, July 1989
The four principal phases are moments, not whole days. Times are given in UTC and in Europe/Vilnius time.
| Date | Phase | Europe/Vilnius | UTC |
|---|---|---|---|
| Mon 3 Jul | New moon | 07:58 | 04:58 |
| Tue 11 Jul | First quarter | 03:18 | 00:18 |
| Tue 18 Jul | Full moon · Buck Moon | 20:41 | 17:41 |
| Tue 25 Jul | Last quarter | 16:31 | 13:31 |
The sky: July 1989
Planets and sky events this month, as seen in London. The Moon's phases are in the calendar above.
Planets visible (mid-month)
Events
| Sat 1 Jul | The Moon near Mercury | About 5.7° apart, but Mercury is not visible that night. |
| Sun 2 Jul | The Moon near Jupiter | About 4.9° apart, but Jupiter is not visible that night. |
| Sun 2 Jul | Saturn at opposition | The planet is opposite the Sun: it rises at sunset, is up all night and at its brightest of the year. |
| Sun 2 Jul | Mercury and Jupiter together | 0.6° apart, but not in a dark sky. |
| Wed 5 Jul | The Moon near Venus | About 0.2° apart, but Venus is not visible that night. |
| Wed 5 Jul | The Moon near Mars | About 0.2° apart, but Mars is not visible that night. |
| Wed 12 Jul | Venus and Mars together | 0.4° apart, but not in a dark sky. |
| Mon 17 Jul | The Moon near Saturn | About 4.4° apart. Look for Saturn next to the Moon. |
| Sat 29 Jul | The Moon near Jupiter | About 4.7° apart. Look for Jupiter next to the Moon. |
| Sat 29 Jul | Southern Delta Aquariids meteor shower peak | Up to 25 meteors an hour in a perfect sky. The Moon is 7% lit and will not interfere. |
| Sat 29 Jul | Alpha Capricornids meteor shower peak | Up to 5 meteors an hour in a perfect sky. The Moon is 7% lit and will not interfere. |
How to read the moon calendar
Each day shows its date, the share of the Moon’s disc that is lit at noon, and the Moon’s shape that day. When a full moon, new moon or quarter falls on a day, it is named at the bottom of the cell.
Illumination is the part of the disc lit by the Sun. It grows from new moon to full moon (waxing) and shrinks from full moon to new moon (waning). Each day opens its own page with every signal for that date.
Full moon dates 1989
| Date | Time (UTC) | Traditional name | |
|---|---|---|---|
| Sun 22 Jan | 21:33 | Wolf Moon | passed |
| Mon 20 Feb | 15:31 | Snow Moon | passed |
| Wed 22 Mar | 09:57 | Worm Moon | passed |
| Fri 21 Apr | 03:13 | Pink Moon | passed |
| Sat 20 May | 18:16 | Flower Moon | passed |
| Mon 19 Jun | 06:57 | Strawberry Moon | passed |
| Tue 18 Jul | 17:41 | Buck Moon | passed |
| Thu 17 Aug | 03:06 | Sturgeon Moon | passed |
| Fri 15 Sep | 11:50 | Harvest Moon | passed |
| Sat 14 Oct | 20:31 | Hunter’s Moon | passed |
| Mon 13 Nov | 05:51 | Beaver Moon | passed |
| Tue 12 Dec | 16:29 | Cold Moon | passed |
New moon dates 1989
| Date | Time (UTC) | |
|---|---|---|
| Sat 7 Jan | 19:21 | passed |
| Mon 6 Feb | 07:36 | passed |
| Tue 7 Mar | 18:18 | passed |
| Thu 6 Apr | 03:32 | passed |
| Fri 5 May | 11:46 | passed |
| Sat 3 Jun | 19:52 | passed |
| Mon 3 Jul | 04:58 | passed |
| Tue 1 Aug | 16:05 | passed |
| Thu 31 Aug | 05:44 | passed |
| Fri 29 Sep | 21:46 | passed |
| Sun 29 Oct | 15:26 | passed |
| Tue 28 Nov | 09:40 | passed |
| Thu 28 Dec | 03:19 | passed |
The eight moon phases explained
Four principal phases are exact instants; the four in between are the days that connect them.
Solar and lunar eclipses in 1989
No eclipse data for 1989.
The waning moon is traditionally a time for finishing
Questions people ask
When is the full moon in July 1989?
The full moon is on 18 July 1989. Its traditional name is the Buck Moon. The exact time is in the table on this page.
When is the new moon in July 1989?
The new moon is on 3 July 1989. The Moon can’t be seen that night: it sits between Earth and the Sun with its lit side turned away.
What do the percentages mean?
They show how much of the Moon’s disc is lit at noon. 0% is new moon, 100% is full moon and 50% is a quarter.
Why does another calendar give a different date?
A phase is a moment. When it falls near midnight, the date can differ by one day between time zones. This calendar uses Europe/Vilnius time for the days.
How often is there a full moon?
About every 29.5 days. Some months have two; the second is called a Blue Moon.
- Jean Meeus, Astronomical Algorithms, 2nd ed., Willmann-Bell, 1998, chapters 48 and 49.
- NASA Eclipse Web Site (eclipse dates and visibility).
Numbers update through the day from public sources. The text for each day is written from that day’s data and checked by the editor. Every past day keeps its own page in the archive.