17404+2421
- Unique Name: 17404+2421TDT 461
- RA: 17 40 21.90
- Dec: +24 21 11.6
- Discoverer: TDT
- Discoverer Number: 461
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 17
- Last position angle: 17
- First separation: 0.7
- Last separation: 0.7
- Mag first component: 12.03
- Mag second component: 12.16
- Spectral type:
- Primary proper motion RA: 12
- Primary proper motion DEC: -21
- Secondary proper motion RA: 12
- Secondary proper motion DEC: -21
- Durchmusterung:
- Notes: