21487+3231
- Unique Name: 21487+3231GRV 508
- RA: 21 48 42.60
- Dec: +32 31 23.9
- Discoverer: GRV
- Discoverer Number: 508
- Components:
- First year: 1999
- Last year: 2002
- Observations: 3
- First position angle: 8
- Last position angle: 8
- First separation: 48.7
- Last separation: 48.7
- Mag first component: 13.23
- Mag second component: 13.86
- Spectral type:
- Primary proper motion RA: -12
- Primary proper motion DEC: -18
- Secondary proper motion RA: -6
- Secondary proper motion DEC: -22
- Durchmusterung:
- Notes: