21045+2730
- Unique Name: 21045+2730J 1180
- RA: 21 04 32.36
- Dec: +27 29 37.8
- Discoverer: J
- Discoverer Number: 1180
- Components:
- First year: 1907
- Last year: 2002
- Observations: 7
- First position angle: 275
- Last position angle: 276
- First separation: 3.0
- Last separation: 4.0
- Mag first component: 9.5
- Mag second component: 10.9
- Spectral type:
- Primary proper motion RA: -5
- Primary proper motion DEC: -8
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: