21581+3650
- Unique Name: 21581+3650TDT3263
- RA: 21 58 07.31
- Dec: +36 50 00.6
- Discoverer: TDT
- Discoverer Number: 3263
- Components:
- First year: 1991
- Last year: 2009
- Observations: 2
- First position angle: 18
- Last position angle: 163
- First separation: 0.4
- Last separation: 0.8
- Mag first component: 10.9
- Mag second component: 11.11
- Spectral type:
- Primary proper motion RA: -23
- Primary proper motion DEC: -82
- Secondary proper motion RA: -23
- Secondary proper motion DEC: -82
- Durchmusterung:
- Notes: