21002+0406
- Unique Name: 21002+0406HEI 820
- RA: 21 00 13.48
- Dec: +04 06 27.8
- Discoverer: HEI
- Discoverer Number: 820
- Components:
- First year: 1979
- Last year: 1997
- Observations: 4
- First position angle: 64
- Last position angle: 67
- First separation: 2.1
- Last separation: 2.2
- Mag first component: 11.46
- Mag second component: 12.3
- Spectral type:
- Primary proper motion RA: 14
- Primary proper motion DEC: -3
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: