00521+5539
- Unique Name: 00521+5539TDS1643
- RA: 00 52 08.20
- Dec: +55 38 33.2
- Discoverer: TDS
- Discoverer Number: 1643
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 175
- Last position angle: 175
- First separation: 0.5
- Last separation: 0.5
- Mag first component: 11.43
- Mag second component: 11.49
- Spectral type:
- Primary proper motion RA: -4
- Primary proper motion DEC: -7
- Secondary proper motion RA: -4
- Secondary proper motion DEC: -7
- Durchmusterung:
- Notes: