20100+2421
- Unique Name: 20100+2421POU4237
- RA: 20 09 55.91
- Dec: +24 20 29.7
- Discoverer: POU
- Discoverer Number: 4237
- Components:
- First year: 1899
- Last year: 2001
- Observations: 3
- First position angle: 115
- Last position angle: 121
- First separation: 9.9
- Last separation: 9.8
- Mag first component: 14.0
- Mag second component: 14.2
- Spectral type:
- Primary proper motion RA: -51
- Primary proper motion DEC: 47
- Secondary proper motion RA: 77
- Secondary proper motion DEC: -55
- Durchmusterung:
- Notes: