21310-4822
- Unique Name: 21310-4822HJ 5273
- RA: 21 30 56.13
- Dec: -48 21 34.5
- Discoverer: HJ
- Discoverer Number: 5273
- Components:
- First year: 1834
- Last year: 1999
- Observations: 11
- First position angle: 103
- Last position angle: 96
- First separation: 3.0
- Last separation: 7.0
- Mag first component: 10.36
- Mag second component: 11.4
- Spectral type: K1/2
- Primary proper motion RA: -67
- Primary proper motion DEC: -107
- Secondary proper motion RA: -24
- Secondary proper motion DEC: -112
- Durchmusterung: -4813920
- Notes: N
