| Virgo I | |
| Epoch: | J2000 |
| Type: | dSph |
| Dist Ly: | kly (87 kpc) |
| Half Light Radius Pc: | pc |
| Half Light Radius Arcminsec: | 1.5′ |
| Constellation Name: | Virgo |
| Absmag V: | −0.8 ± 0.9 |
| Ellipticity: | 0.44 |
| Names: | Virgo I |
Virgo I is an extremely faint satellite galaxy of the Milky Way.[1] It was discovered in the Subaru Strategic Survey. Virgo I has an absolute visual magnitude of −0.8 making it one of the least luminous galaxies confirmed thus far. The galaxy has a radius of 124 light years, (half light radius 38 pc) meaning that it is too big to be a globular cluster.[1] Cetus II is dimmer, but too small to be classed as a galaxy.[1] Virgo I is dimmer than Segue I, the previous dimmest known. The distance to Virgo I is 87kpc.[2]