21517+2134
- Unique Name: 21517+2134BRT2501
- RA: 21 51 37.79
- Dec: +21 34 28.5
- Discoverer: BRT
- Discoverer Number: 2501
- Components:
- First year: 1894
- Last year: 2009
- Observations: 7
- First position angle: 321
- Last position angle: 323
- First separation: 5.5
- Last separation: 5.0
- Mag first component: 10.6
- Mag second component: 10.7
- Spectral type:
- Primary proper motion RA: 24
- Primary proper motion DEC: -4
- Secondary proper motion RA: 9
- Secondary proper motion DEC: 14
- Durchmusterung:
- Notes: