21104+4253
- Unique Name: 21104+4253BRT1144
- RA: 21 10 21.39
- Dec: +42 52 26.0
- Discoverer: BRT
- Discoverer Number: 1144
- Components:
- First year: 1895
- Last year: 2000
- Observations: 3
- First position angle: 128
- Last position angle: 163
- First separation: 3.0
- Last separation: 4.8
- Mag first component: 11.6
- Mag second component: 11.6
- Spectral type:
- Primary proper motion RA:
- Primary proper motion DEC:
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: