21026+2141
- Unique Name: 21026+2141HO 599CD
- RA: 21 02 31.42
- Dec: +21 40 51.1
- Discoverer: HO
- Discoverer Number: 599
- Components: CD
- First year: 1891
- Last year: 2013
- Observations: 12
- First position angle: 155
- Last position angle: 175
- First separation: 19.5
- Last separation: 18.3
- Mag first component: 8.02
- Mag second component: 14.0
- Spectral type: K0
- Primary proper motion RA: 52
- Primary proper motion DEC: 1
- Secondary proper motion RA: -2
- Secondary proper motion DEC: -5
- Durchmusterung: +21 4444
- Notes: