19402+2331
- Unique Name: 19402+2331A 166
- RA: 19 40 10.51
- Dec: +23 30 43.1
- Discoverer: A
- Discoverer Number: 166
- Components:
- First year: 1900
- Last year: 2010
- Observations: 31
- First position angle: 236
- Last position angle: 243
- First separation: 0.7
- Last separation: 0.9
- Mag first component: 9.24
- Mag second component: 9.54
- Spectral type: F2
- Primary proper motion RA: -5
- Primary proper motion DEC: -14
- Secondary proper motion RA: -5
- Secondary proper motion DEC: -14
- Durchmusterung: +23 3728
- Notes: