21490+6323
- Unique Name: 21490+6323MLB 177
- RA: 21 48 54.56
- Dec: +63 22 07.1
- Discoverer: MLB
- Discoverer Number: 177
- Components:
- First year: 1920
- Last year: 1983
- Observations: 2
- First position angle: 44
- Last position angle: 57
- First separation: 2.5
- Last separation: 2.6
- Mag first component: 12.07
- Mag second component: 12.5
- Spectral type:
- Primary proper motion RA: 4
- Primary proper motion DEC: 9
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: