21010+3647
- Unique Name: 21010+3647SEI1367
- RA: 21 01 00.82
- Dec: +36 46 02.1
- Discoverer: SEI
- Discoverer Number: 1367
- Components:
- First year: 1896
- Last year: 2002
- Observations: 5
- First position angle: 248
- Last position angle: 247
- First separation: 20.3
- Last separation: 20.6
- Mag first component: 10.5
- Mag second component: 11.0
- Spectral type:
- Primary proper motion RA: -9
- Primary proper motion DEC: -30
- Secondary proper motion RA: -9
- Secondary proper motion DEC: -27
- Durchmusterung:
- Notes: