21593+2800
- Unique Name: 21593+2800MLB 578
- RA: 21 59 18.45
- Dec: +27 59 43.6
- Discoverer: MLB
- Discoverer Number: 578
- Components:
- First year: 1928
- Last year: 2007
- Observations: 2
- First position angle: 162
- Last position angle: 148
- First separation: 2.8
- Last separation: 3.3
- Mag first component: 9.4
- Mag second component: 13.0
- Spectral type:
- Primary proper motion RA: -5
- Primary proper motion DEC: -26
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: