10209-5603
- Unique Name: 10209-5603RMK 13AC
- RA: 10 20 54.81
- Dec: -56 02 35.6
- Discoverer: RMK
- Discoverer Number: 13
- Components: AC
- First year: 1834
- Last year: 2000
- Observations: 19
- First position angle: 188
- Last position angle: 191
- First separation: 30.0
- Last separation: 36.2
- Mag first component: 4.49
- Mag second component: 9.22
- Spectral type: B3IIIe
- Primary proper motion RA: -18
- Primary proper motion DEC: 2
- Secondary proper motion RA: -19
- Secondary proper motion DEC: 7
- Durchmusterung: -55 3285
- Notes: N
