21092+2820
- Unique Name: 21092+2820MLB 537
- RA: 21 09 09.58
- Dec: +28 19 56.7
- Discoverer: MLB
- Discoverer Number: 537
- Components:
- First year: 1897
- Last year: 2011
- Observations: 6
- First position angle: 97
- Last position angle: 100
- First separation: 6.3
- Last separation: 6.9
- Mag first component: 9.7
- Mag second component: 10.0
- Spectral type:
- Primary proper motion RA: 11
- Primary proper motion DEC: -8
- Secondary proper motion RA: 26
- Secondary proper motion DEC: -13
- Durchmusterung:
- Notes: