21009+5929
- Unique Name: 21009+5929MLR 241
- RA: 21 00 54.53
- Dec: +59 29 06.9
- Discoverer: MLR
- Discoverer Number: 241
- Components:
- First year: 1971
- Last year: 2008
- Observations: 9
- First position angle: 168
- Last position angle: 173
- First separation: 0.9
- Last separation: 0.9
- Mag first component: 10.41
- Mag second component: 10.53
- Spectral type: G
- Primary proper motion RA: -18
- Primary proper motion DEC: 5
- Secondary proper motion RA: -18
- Secondary proper motion DEC: 5
- Durchmusterung: +58 2208
- Notes: N