21090+0410
- Unique Name: 21090+0410HJ 5515AC
- RA: 21 08 40.30
- Dec: +04 13 19.8
- Discoverer: HJ
- Discoverer Number: 5515
- Components: AC
- First year: 2000
- Last year: 2000
- Observations: 2
- First position angle: 68
- Last position angle: 68
- First separation: 48.0
- Last separation: 47.9
- Mag first component: 12.4
- Mag second component: 12.7
- Spectral type:
- Primary proper motion RA: 12
- Primary proper motion DEC: -6
- Secondary proper motion RA: 1
- Secondary proper motion DEC: 3
- Durchmusterung:
- Notes: N
