10121+4751
- Unique Name: 10121+4751HJ 2522
- RA: 10 12 03.80
- Dec: +47 50 47.7
- Discoverer: HJ
- Discoverer Number: 2522
- Components:
- First year: 1831
- Last year: 2004
- Observations: 9
- First position angle: 147
- Last position angle: 148
- First separation: 25.0
- Last separation: 29.9
- Mag first component: 9.6
- Mag second component: 12.04
- Spectral type: G0
- Primary proper motion RA: 33
- Primary proper motion DEC: -62
- Secondary proper motion RA: 35
- Secondary proper motion DEC: -59
- Durchmusterung: +48 1845
- Notes: