21538+6237
- Unique Name: 21538+6237ES 144AC
- RA: 21 53 48.11
- Dec: +62 36 51.9
- Discoverer: ES
- Discoverer Number: 144
- Components: AC
- First year: 1898
- Last year: 2003
- Observations: 4
- First position angle: 279
- Last position angle: 279
- First separation: 20.7
- Last separation: 20.6
- Mag first component: 7.07
- Mag second component: 12.62
- Spectral type: B1V
- Primary proper motion RA: -3
- Primary proper motion DEC: -1
- Secondary proper motion RA: -5
- Secondary proper motion DEC: 0
- Durchmusterung:
- Notes: N
