21177+2449
- Unique Name: 21177+2449POU5318AB
- RA: 21 17 43.36
- Dec: +24 49 12.9
- Discoverer: POU
- Discoverer Number: 5318
- Components: AB
- First year: 1898
- Last year: 2009
- Observations: 5
- First position angle: 230
- Last position angle: 232
- First separation: 11.7
- Last separation: 8.8
- Mag first component: 10.6
- Mag second component: 12.9
- Spectral type:
- Primary proper motion RA: -17
- Primary proper motion DEC: -18
- Secondary proper motion RA: -5
- Secondary proper motion DEC: -7
- Durchmusterung:
- Notes: N
