21587+2949
- Unique Name: 21587+2949BUP 231
- RA: 21 58 41.08
- Dec: +29 48 48.8
- Discoverer: BUP
- Discoverer Number: 231
- Components:
- First year: 1909
- Last year: 2000
- Observations: 3
- First position angle: 134
- Last position angle: 75
- First separation: 29.8
- Last separation: 55.7
- Mag first component: 6.94
- Mag second component: 13.3
- Spectral type: F8V-VI
- Primary proper motion RA: -357
- Primary proper motion DEC: -388
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +29 4550
- Notes: