02309+5311
- Unique Name: 02309+5311HJ 2139AD
- RA: 02 30 52.93
- Dec: +53 10 19.0
- Discoverer: HJ
- Discoverer Number: 2139
- Components: AD
- First year: 1931
- Last year: 2002
- Observations: 4
- First position angle: 202
- Last position angle: 203
- First separation: 56.2
- Last separation: 59.2
- Mag first component: 8.85
- Mag second component: 11.93
- Spectral type: F5
- Primary proper motion RA: 16
- Primary proper motion DEC: 8
- Secondary proper motion RA: 27
- Secondary proper motion DEC: -13
- Durchmusterung:
- Notes: