21537+7402
- Unique Name: 21537+7402UC 4591
- RA: 21 53 44.86
- Dec: +74 01 47.2
- Discoverer: UC
- Discoverer Number: 4591
- Components:
- First year: 1999
- Last year: 2003
- Observations: 2
- First position angle: 233
- Last position angle: 234
- First separation: 43.9
- Last separation: 43.8
- Mag first component: 15.7
- Mag second component: 16.2
- Spectral type:
- Primary proper motion RA: -9
- Primary proper motion DEC: 85
- Secondary proper motion RA: -12
- Secondary proper motion DEC: 92
- Durchmusterung:
- Notes: V