21591+0116
- Unique Name: 21591+0116HJ 3078
- RA: 21 59 07.86
- Dec: +01 16 25.5
- Discoverer: HJ
- Discoverer Number: 3078
- Components:
- First year: 1830
- Last year: 2003
- Observations: 25
- First position angle: 195
- Last position angle: 183
- First separation: 3.0
- Last separation: 4.4
- Mag first component: 10.45
- Mag second component: 10.84
- Spectral type: K0
- Primary proper motion RA: 35
- Primary proper motion DEC: 18
- Secondary proper motion RA: 41
- Secondary proper motion DEC: 6
- Durchmusterung: +00 4802
- Notes: D
