21509+1243
- Unique Name: 21509+1243FMR 165
- RA: 21 50 51.16
- Dec: +12 43 21.5
- Discoverer: FMR
- Discoverer Number: 165
- Components:
- First year: 1997
- Last year: 2000
- Observations: 3
- First position angle: 306
- Last position angle: 306
- First separation: 38.1
- Last separation: 38.3
- Mag first component: 10.7
- Mag second component: 18.1
- Spectral type: K1V+K9VI
- Primary proper motion RA: 158
- Primary proper motion DEC: -83
- Secondary proper motion RA: 161
- Secondary proper motion DEC: -98
- Durchmusterung:
- Notes: V
