21108+3738
- Unique Name: 21108+3738ALI 681
- RA: 21 10 42.87
- Dec: +37 37 37.9
- Discoverer: ALI
- Discoverer Number: 681
- Components:
- First year: 1929
- Last year: 2002
- Observations: 4
- First position angle: 19
- Last position angle: 20
- First separation: 11.9
- Last separation: 11.9
- Mag first component: 11.06
- Mag second component: 12.9
- Spectral type:
- Primary proper motion RA: -2
- Primary proper motion DEC: -4
- Secondary proper motion RA: 11
- Secondary proper motion DEC: 0
- Durchmusterung:
- Notes:
