21508-2756
- Unique Name: 21508-2756HJ 3059
- RA: 21 50 46.28
- Dec: -27 55 56.5
- Discoverer: HJ
- Discoverer Number: 3059
- Components:
- First year: 1830
- Last year: 1999
- Observations: 12
- First position angle: 258
- Last position angle: 252
- First separation: 15.0
- Last separation: 25.6
- Mag first component: 7.51
- Mag second component: 10.64
- Spectral type: B8.5V
- Primary proper motion RA: 13
- Primary proper motion DEC: 5
- Secondary proper motion RA: 13
- Secondary proper motion DEC: 1
- Durchmusterung: -2817477
- Notes: D
