17556+2102
- Unique Name: 17556+2102TDT 577
- RA: 17 55 38.73
- Dec: +21 02 07.5
- Discoverer: TDT
- Discoverer Number: 577
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 150
- Last position angle: 150
- First separation: 2.3
- Last separation: 2.3
- Mag first component: 12.14
- Mag second component: 12.37
- Spectral type:
- Primary proper motion RA: 12
- Primary proper motion DEC: 3
- Secondary proper motion RA: 12
- Secondary proper motion DEC: 3
- Durchmusterung:
- Notes: