New moon dates 2013
- 2013: 12 × new moon — 11 January 2013, 10 February 2013, 11 March 2013, 10 April 2013, 10 May 2013, 8 June 2013, 8 July 2013, 7 August 2013, 5 September 2013, 5 October 2013, 3 November 2013, 3 December 2013.
New moon dates 2013
| Date | Time (UTC) | |
|---|---|---|
| Fri 11 Jan | 19:43 | passed |
| Sun 10 Feb | 07:20 | passed |
| Mon 11 Mar | 19:50 | passed |
| Wed 10 Apr | 09:35 | passed |
| Fri 10 May | 00:28 | passed |
| Sat 8 Jun | 15:56 | passed |
| Mon 8 Jul | 07:14 | passed |
| Wed 7 Aug | 21:50 | passed |
| Thu 5 Sep | 11:36 | passed |
| Sat 5 Oct | 00:34 | passed |
| Sun 3 Nov | 12:49 | passed |
| Tue 3 Dec | 00:22 | 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.