21154+4539
- Unique Name: 21154+4539TDT2860
- RA: 21 15 25.03
- Dec: +45 38 33.0
- Discoverer: TDT
- Discoverer Number: 2860
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 256
- Last position angle: 256
- First separation: 2.7
- Last separation: 2.7
- Mag first component: 11.74
- Mag second component: 12.16
- Spectral type:
- Primary proper motion RA: -1
- Primary proper motion DEC: -2
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: