20306+2158
- Unique Name: 20306+2158BRT2478
- RA: 20 30 34.04
- Dec: +21 57 43.2
- Discoverer: BRT
- Discoverer Number: 2478
- Components:
- First year: 1892
- Last year: 2011
- Observations: 12
- First position angle: 119
- Last position angle: 297
- First separation: 3.3
- Last separation: 3.5
- Mag first component: 9.9
- Mag second component: 10.0
- Spectral type:
- Primary proper motion RA: 8
- Primary proper motion DEC: -6
- Secondary proper motion RA: 1
- Secondary proper motion DEC: -5
- Durchmusterung:
- Notes: N
