| Type: | partial |
| Date: | 10 December 1973 |
| Axis: | 0.9823° |
| Gamma: | 0.96441 |
| Magnitude: | 0.10069 |
| Saros Ser: | 115 |
| Saros No: | 55 of 72 |
| Partiality: | 68 minutes, 29.4 seconds |
| Penumbral: | 252 minutes, 7.4 seconds |
| P1: | 23:38:19.1 (9 Dec) |
| U1: | 01:10:09.7 (10 Dec) |
| Greatest: | 01:44:21.9 (10 Dec) |
| U4: | 02:18:39.1 (10 Dec) |
| P4: | 03:50:26.5 (10 Dec) |
| Previous: | July 1973 |
| Next: | June 1974 |
A partial lunar eclipse took place on Monday, December 10, 1973, the last of four lunar eclipses in 1973. At maximum eclipse, a small bite out of the Moon should have been visible. The eclipse lasted for 1 hour, 8 minutes and 29.4 seconds, with just 10.069% of the Moon in shadow at maximum.[1] It occurred near perigee, and as described, such event was known as a supermoon.
A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[2] This lunar eclipse is related to two partial solar eclipses of Solar Saros 122.