New moon dates 2004
- 2004: 12 × new moon — 21 January 2004, 20 February 2004, 21 March 2004, 19 April 2004, 19 May 2004, 17 June 2004, 17 July 2004, 16 August 2004, 14 September 2004, 14 October 2004, 12 November 2004, 12 December 2004.
New moon dates 2004
| Date | Time (UTC) | |
|---|---|---|
| Wed 21 Jan | 21:04 | passed |
| Fri 20 Feb | 09:17 | passed |
| Sun 21 Mar | 22:41 | passed |
| Mon 19 Apr | 13:21 | passed |
| Wed 19 May | 04:51 | passed |
| Thu 17 Jun | 20:26 | passed |
| Sat 17 Jul | 11:23 | passed |
| Mon 16 Aug | 01:23 | passed |
| Tue 14 Sep | 14:28 | passed |
| Thu 14 Oct | 02:48 | passed |
| Fri 12 Nov | 14:27 | passed |
| Sun 12 Dec | 01:28 | passed |
Questions people ask
What is a moon day?
A moon day counts the days since the last new moon: the first moon day starts at the new moon, the fifteenth around the full moon. The count on this page is the whole number of days since the last new moon plus one.
Is the moon waxing or waning?
Waxing means the lit part is growing (from new moon to full moon); waning means it is shrinking (from full moon to new moon). In the northern hemisphere a waxing moon is lit on the right.
How are the phase times calculated?
With the algorithms published by Jean Meeus in Astronomical Algorithms (1998), including the periodic terms, which give the phase instants to about one minute.