21157+4135
- Unique Name: 21157+4135POP 170
- RA: 21 15 45.61
- Dec: +41 34 26.6
- Discoverer: POP
- Discoverer Number: 170
- Components:
- First year: 1982
- Last year: 2000
- Observations: 2
- First position angle: 77
- Last position angle: 76
- First separation: 1.3
- Last separation: 1.4
- Mag first component: 10.92
- Mag second component: 11.8
- Spectral type:
- Primary proper motion RA: 1
- Primary proper motion DEC: -10
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: