12539+7440
- Unique Name: 12539+7440STF1698
- RA: 12 54 47.82
- Dec: +74 39 06.1
- Discoverer: STF
- Discoverer Number: 1698
- Components:
- First year: 1831
- Last year: 2008
- Observations: 25
- First position angle: 111
- Last position angle: 109
- First separation: 10.5
- Last separation: 10.1
- Mag first component: 9.64
- Mag second component: 10.24
- Spectral type: A2
- Primary proper motion RA: 24
- Primary proper motion DEC: -12
- Secondary proper motion RA: 24
- Secondary proper motion DEC: -12
- Durchmusterung: +75 490
- Notes: N D
