21072+2833
- Unique Name: 21072+2833COU 528
- RA: 21 07 08.98
- Dec: +28 33 26.9
- Discoverer: COU
- Discoverer Number: 528
- Components:
- First year: 1970
- Last year: 1991
- Observations: 2
- First position angle: 79
- Last position angle: 82
- First separation: 0.7
- Last separation: 1.3
- Mag first component: 11.56
- Mag second component: 12.11
- Spectral type:
- Primary proper motion RA: -4
- Primary proper motion DEC: -15
- Secondary proper motion RA: -4
- Secondary proper motion DEC: -15
- Durchmusterung:
- Notes: