21577-0038
- Unique Name: 21577-0038A 891
- RA: 21 57 41.19
- Dec: -00 37 44.3
- Discoverer: A
- Discoverer Number: 891
- Components:
- First year: 1904
- Last year: 2008
- Observations: 26
- First position angle: 57
- Last position angle: 76
- First separation: 0.4
- Last separation: 0.6
- Mag first component: 9.5
- Mag second component: 9.55
- Spectral type: G0
- Primary proper motion RA: -59
- Primary proper motion DEC: -60
- Secondary proper motion RA: -59
- Secondary proper motion DEC: -60
- Durchmusterung: -01 4222
- Notes: