21409+1915
- Unique Name: 21409+1915HDS3086
- RA: 21 40 52.94
- Dec: +19 15 26.0
- Discoverer: HDS
- Discoverer Number: 3086
- Components:
- First year: 1991
- Last year: 1991
- Observations: 2
- First position angle: 67
- Last position angle: 66
- First separation: 1.1
- Last separation: 1.1
- Mag first component: 8.14
- Mag second component: 11.84
- Spectral type: A2
- Primary proper motion RA: 13
- Primary proper motion DEC: -11
- Secondary proper motion RA: 11
- Secondary proper motion DEC: -7
- Durchmusterung: +18 4835
- Notes: