21230+2858
- Unique Name: 21230+2858STF2792AB
- RA: 21 23 05.00
- Dec: +28 57 18.3
- Discoverer: STF
- Discoverer Number: 2792
- Components: AB
- First year: 1828
- Last year: 2010
- Observations: 21
- First position angle: 332
- Last position angle: 330
- First separation: 6.0
- Last separation: 7.3
- Mag first component: 9.19
- Mag second component: 10.63
- Spectral type: A7
- Primary proper motion RA: 3
- Primary proper motion DEC: -3
- Secondary proper motion RA: 5
- Secondary proper motion DEC: -6
- Durchmusterung: +28 4072
- Notes: