21308+4827
- Unique Name: 21308+4827A 770AB,D
- RA: 21 30 48.00
- Dec: +48 27 25.4
- Discoverer: A
- Discoverer Number: 770
- Components: AB,D
- First year: 1900
- Last year: 2013
- Observations: 10
- First position angle: 20
- Last position angle: 14
- First separation: 92.0
- Last separation: 97.5
- Mag first component: 8.74
- Mag second component: 10.59
- Spectral type:
- Primary proper motion RA: 7
- Primary proper motion DEC: -140
- Secondary proper motion RA: -8
- Secondary proper motion DEC: -18
- Durchmusterung:
- Notes: N
