18121+4015
- Unique Name: 18121+4015LEO 1
- RA: 18 12 07.00
- Dec: +40 15 00.6
- Discoverer: LEO
- Discoverer Number: 1
- Components:
- First year: 1916
- Last year: 2010
- Observations: 9
- First position angle: 153
- Last position angle: 147
- First separation: 1.4
- Last separation: 1.5
- Mag first component: 10.35
- Mag second component: 11.34
- Spectral type: F8
- Primary proper motion RA: -13
- Primary proper motion DEC: -9
- Secondary proper motion RA: -13
- Secondary proper motion DEC: -9
- Durchmusterung: +40 3309
- Notes: