21138-3247
- Unique Name: 21138-3247B 2491
- RA: 21 13 49.83
- Dec: -32 47 25.1
- Discoverer: B
- Discoverer Number: 2491
- Components:
- First year: 1911
- Last year: 1999
- Observations: 7
- First position angle: 204
- Last position angle: 201
- First separation: 6.5
- Last separation: 6.5
- Mag first component: 10.06
- Mag second component: 11.1
- Spectral type: G
- Primary proper motion RA: 108
- Primary proper motion DEC: -41
- Secondary proper motion RA: 92
- Secondary proper motion DEC: -87
- Durchmusterung: -3315456
- Notes: