20100+1021
- Unique Name: 20100+1021A 1199AC
- RA: 20 09 59.56
- Dec: +10 20 59.0
- Discoverer: A
- Discoverer Number: 1199
- Components: AC
- First year: 1915
- Last year: 2001
- Observations: 3
- First position angle: 294
- Last position angle: 293
- First separation: 49.3
- Last separation: 50.4
- Mag first component: 9.14
- Mag second component: 12.94
- Spectral type: A0V
- Primary proper motion RA: 15
- Primary proper motion DEC: -9
- Secondary proper motion RA: -9
- Secondary proper motion DEC: 3
- Durchmusterung:
- Notes: N
