Mark A3
- Unique Name: Mark A3
- RA: 20 44 03.82
- Dec: -10 45 37.9
- Mag. V: 14.818
- Mag. B-V: 0.938
- Mag. U-B: 0.651
- Mag. V-R: 0.587
- Mag. R-I: 0.51
- Mag. V-I: 1.098
- N: 22.0
- M: 10.0
- Mean error of the mean V: 0.002
- Mean error of the mean B-V: 0.003
- Mean error of the mean U-B: 0.01
- Mean error of the mean V-R: 0.002
- Mean error of the mean R-I: 0.003
- Mean error of the mean V-I: 0.005