20129+2913
- Unique Name: 20129+2913HJ 1492A,BC
- RA: 20 12 55.23
- Dec: +29 12 31.8
- Discoverer: HJ
- Discoverer Number: 1492
- Components: A,BC
- First year: 1828
- Last year: 2005
- Observations: 16
- First position angle: 59
- Last position angle: 54
- First separation: 15.0
- Last separation: 18.3
- Mag first component: 10.28
- Mag second component: 10.54
- Spectral type: A2
- Primary proper motion RA: 5
- Primary proper motion DEC: -5
- Secondary proper motion RA: 5
- Secondary proper motion DEC: -3
- Durchmusterung: +28 3668
- Notes: