21171+4002
- Unique Name: 21171+4002GRV 443
- RA: 21 17 08.00
- Dec: +40 02 16.2
- Discoverer: GRV
- Discoverer Number: 443
- Components:
- First year: 1998
- Last year: 2002
- Observations: 3
- First position angle: 333
- Last position angle: 333
- First separation: 16.6
- Last separation: 16.6
- Mag first component: 11.6
- Mag second component: 15.09
- Spectral type:
- Primary proper motion RA: -13
- Primary proper motion DEC: -16
- Secondary proper motion RA: -20
- Secondary proper motion DEC: -21
- Durchmusterung:
- Notes: