21243+3740
- Unique Name: 21243+3740WSI 7
- RA: 21 24 16.13
- Dec: +37 39 44.2
- Discoverer: WSI
- Discoverer Number: 7
- Components:
- First year: 1999
- Last year: 2012
- Observations: 5
- First position angle: 55
- Last position angle: 44
- First separation: 0.1
- Last separation: 0.1
- Mag first component: 7.81
- Mag second component: 0.0
- Spectral type: G5
- Primary proper motion RA: 145
- Primary proper motion DEC: 8
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +37 4295
- Notes: O