21230+2858
- Unique Name: 21230+2858STF2792AC
- RA: 21 23 05.00
- Dec: +28 57 18.3
- Discoverer: STF
- Discoverer Number: 2792
- Components: AC
- First year: 1905
- Last year: 2010
- Observations: 4
- First position angle: 163
- Last position angle: 160
- First separation: 22.4
- Last separation: 23.2
- Mag first component: 9.17
- Mag second component: 12.9
- Spectral type: A7
- Primary proper motion RA: 3
- Primary proper motion DEC: -3
- Secondary proper motion RA: 23
- Secondary proper motion DEC: -6
- Durchmusterung:
- Notes: