21052+6942
- Unique Name: 21052+6942MLB 303
- RA: 21 05 15.04
- Dec: +69 42 36.9
- Discoverer: MLB
- Discoverer Number: 303
- Components:
- First year: 1923
- Last year: 2003
- Observations: 4
- First position angle: 351
- Last position angle: 0
- First separation: 4.9
- Last separation: 6.1
- Mag first component: 11.01
- Mag second component: 13.0
- Spectral type:
- Primary proper motion RA: -10
- Primary proper motion DEC: -7
- Secondary proper motion RA: -10
- Secondary proper motion DEC: 13
- Durchmusterung:
- Notes: