21089+2417
- Unique Name: 21089+2417OSO 142AD
- RA: 21 08 51.92
- Dec: +24 17 02.7
- Discoverer: OSO
- Discoverer Number: 142
- Components: AD
- First year: 1994
- Last year: 2001
- Observations: 3
- First position angle: 30
- Last position angle: 32
- First separation: 18.6
- Last separation: 20.2
- Mag first component: 13.32
- Mag second component: 15.9
- Spectral type:
- Primary proper motion RA: -156
- Primary proper motion DEC: -187
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: N
