21090+2510
- Unique Name: 21090+2510POU5196
- RA: 21 09 01.94
- Dec: +25 10 09.7
- Discoverer: POU
- Discoverer Number: 5196
- Components:
- First year: 1897
- Last year: 2001
- Observations: 3
- First position angle: 127
- Last position angle: 124
- First separation: 9.0
- Last separation: 8.6
- Mag first component: 14.0
- Mag second component: 14.3
- Spectral type:
- Primary proper motion RA: 3
- Primary proper motion DEC: 11
- Secondary proper motion RA: 29
- Secondary proper motion DEC: -5
- Durchmusterung:
- Notes: