21487-4737
- Unique Name: 21487-4737DAM 638
- RA: 21 48 41.24
- Dec: -47 36 50.7
- Discoverer: DAM
- Discoverer Number: 638
- Components:
- First year: 1998
- Last year: 2000
- Observations: 3
- First position angle: 17
- Last position angle: 17
- First separation: 13.8
- Last separation: 13.7
- Mag first component: 15.4
- Mag second component: 16.23
- Spectral type:
- Primary proper motion RA: 92
- Primary proper motion DEC: -33
- Secondary proper motion RA: 97
- Secondary proper motion DEC: -37
- Durchmusterung:
- Notes: V