21010+0704
- Unique Name: 21010+0704HEI 821
- RA: 21 00 59.62
- Dec: +07 04 13.0
- Discoverer: HEI
- Discoverer Number: 821
- Components:
- First year: 1990
- Last year: 1990
- Observations: 1
- First position angle: 92
- Last position angle: 92
- First separation: 2.2
- Last separation: 2.2
- Mag first component: 10.6
- Mag second component: 12.6
- Spectral type:
- Primary proper motion RA: 18
- Primary proper motion DEC: 4
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +06 4722
- Notes: