20533-2821
- Unique Name: 20533-2821COO 290
- RA: 20 53 19.52
- Dec: -28 21 04.8
- Discoverer: COO
- Discoverer Number: 290
- Components:
- First year: 1913
- Last year: 1999
- Observations: 9
- First position angle: 248
- Last position angle: 248
- First separation: 8.2
- Last separation: 7.3
- Mag first component: 10.21
- Mag second component: 10.47
- Spectral type: B F6/7V
- Primary proper motion RA: -2
- Primary proper motion DEC: -15
- Secondary proper motion RA: -26
- Secondary proper motion DEC: -22
- Durchmusterung: -2816968
- Notes: L
