21040+2353
- Unique Name: 21040+2353POU5121
- RA: 21 04 02.43
- Dec: +23 52 36.3
- Discoverer: POU
- Discoverer Number: 5121
- Components:
- First year: 1898
- Last year: 2008
- Observations: 4
- First position angle: 168
- Last position angle: 162
- First separation: 9.7
- Last separation: 9.6
- Mag first component: 12.91
- Mag second component: 13.9
- Spectral type:
- Primary proper motion RA: -13
- Primary proper motion DEC: -6
- Secondary proper motion RA: 11
- Secondary proper motion DEC: 7
- Durchmusterung:
- Notes:
