21001+2555
- Unique Name: 21001+2555GRV 401AB
- RA: 21 00 10.86
- Dec: +25 55 15.1
- Discoverer: GRV
- Discoverer Number: 401
- Components: AB
- First year: 1893
- Last year: 2001
- Observations: 6
- First position angle: 22
- Last position angle: 21
- First separation: 50.1
- Last separation: 49.5
- Mag first component: 12.63
- Mag second component: 12.82
- Spectral type:
- Primary proper motion RA: -13
- Primary proper motion DEC: -20
- Secondary proper motion RA: -13
- Secondary proper motion DEC: -23
- Durchmusterung:
- Notes: N
