21104+3640
- Unique Name: 21104+3640TDT2802
- RA: 21 10 25.82
- Dec: +36 40 09.2
- Discoverer: TDT
- Discoverer Number: 2802
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 97
- Last position angle: 97
- First separation: 0.5
- Last separation: 0.5
- Mag first component: 11.35
- Mag second component: 11.44
- Spectral type:
- Primary proper motion RA: -7
- Primary proper motion DEC: -12
- Secondary proper motion RA: -7
- Secondary proper motion DEC: -12
- Durchmusterung:
- Notes: