21577+8433
- Unique Name: 21577+8433TDT3261
- RA: 21 57 42.31
- Dec: +84 33 01.2
- Discoverer: TDT
- Discoverer Number: 3261
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 271
- Last position angle: 271
- First separation: 0.4
- Last separation: 0.4
- Mag first component: 11.18
- Mag second component: 11.22
- Spectral type: A2
- Primary proper motion RA: -1
- Primary proper motion DEC: -4
- Secondary proper motion RA: -1
- Secondary proper motion DEC: -4
- Durchmusterung:
- Notes: