21047+5831
- Unique Name: 21047+5831HDS3002
- RA: 21 04 39.71
- Dec: +58 31 14.1
- Discoverer: HDS
- Discoverer Number: 3002
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 327
- Last position angle: 327
- First separation: 0.2
- Last separation: 0.2
- Mag first component: 8.48
- Mag second component: 10.19
- Spectral type: A0
- Primary proper motion RA: 9
- Primary proper motion DEC: 4
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +57 2281
- Notes: