21576+1157
- Unique Name: 21576+1157STTA227
- RA: 21 57 37.44
- Dec: +11 56 50.2
- Discoverer: STT
- Discoverer Number: 0
- Components:
- First year: 1875
- Last year: 2004
- Observations: 20
- First position angle: 33
- Last position angle: 32
- First separation: 78.9
- Last separation: 78.0
- Mag first component: 7.51
- Mag second component: 9.03
- Spectral type: A0
- Primary proper motion RA: 9
- Primary proper motion DEC: -2
- Secondary proper motion RA: 6
- Secondary proper motion DEC: -2
- Durchmusterung: +11 4700
- Notes: N
