21187+3604
- Unique Name: 21187+3604TDT2896
- RA: 21 18 40.12
- Dec: +36 04 04.8
- Discoverer: TDT
- Discoverer Number: 2896
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 231
- Last position angle: 231
- First separation: 2.5
- Last separation: 2.5
- Mag first component: 11.5
- Mag second component: 12.42
- Spectral type:
- Primary proper motion RA: 1
- Primary proper motion DEC: 8
- Secondary proper motion RA: 1
- Secondary proper motion DEC: 8
- Durchmusterung:
- Notes: