| C/1948 V1 | |
| Discovery Date: | 1 November 1948 |
| Designations: | Eclipse Comet of 1948 1948 V1 1948 XI |
| Observation Arc: | 137 days |
| Obs: | 17 |
| Epoch: | 10 January 1949 (JD 2432926.5) |
| Semimajor: | 1,574.79 AU |
| Perihelion: | 0.1354 AU |
| Aphelion: | 3,149.44 AU |
| Eccentricity: | 0.9999 |
| Inclination: | 23.116° |
| Asc Node: | 211.043° |
| Arg Peri: | 107.249° |
| Period: | 62,494.39 years |
| Tjup: | 0.423 |
| Earth Moid: | 0.1883 AU |
| Jupiter Moid: | 1.8182 AU |
| Last P: | 27 October 1948 |
| M1: | 9.0 |
| Magnitude: | –1.0 (1948 apparition) |
| B Semimajor: | 1,931 AU --> |
| B Period: | ~84,800 years --> |
The Eclipse Comet of 1948, formally known as C/1948 V1, was an especially bright comet discovered during a solar eclipse on November 1, 1948. Although there have been several comets that have been seen during solar eclipses, the Eclipse Comet of 1948 is perhaps the best-known; it was however, best viewed only from the Southern Hemisphere.
When it was first discovered during totality, it was already quite bright, at magnitude –1.0; as it was near perihelion, this was its peak brightness. Its visibility during morning twilight improved as it receded outward from the Sun; it peaked near zero magnitude, and at one point displayed a tail roughly 30 degrees in length, before falling below naked eye visibility by the end of December.