12440+2110
- Unique Name: 12440+2110STT 253
- RA: 12 43 59.85
- Dec: +21 10 22.9
- Discoverer: STT
- Discoverer Number: 253
- Components:
- First year: 1843
- Last year: 2012
- Observations: 23
- First position angle: 232
- Last position angle: 238
- First separation: 5.8
- Last separation: 6.3
- Mag first component: 7.99
- Mag second component: 10.51
- Spectral type: B0
- Primary proper motion RA: -20
- Primary proper motion DEC: 25
- Secondary proper motion RA: -24
- Secondary proper motion DEC: 22
- Durchmusterung: +21 2451
- Notes: D
