21423+0715
- Unique Name: 21423+0715HU 279
- RA: 21 42 15.15
- Dec: +07 15 14.9
- Discoverer: HU
- Discoverer Number: 279
- Components:
- First year: 1900
- Last year: 2009
- Observations: 23
- First position angle: 358
- Last position angle: 356
- First separation: 2.6
- Last separation: 2.4
- Mag first component: 10.44
- Mag second component: 10.94
- Spectral type: F0
- Primary proper motion RA: -2
- Primary proper motion DEC: -1
- Secondary proper motion RA: -2
- Secondary proper motion DEC: -1
- Durchmusterung: +06 4884
- Notes: