21421+1328
- Unique Name: 21421+1328LDS4904
- RA: 21 42 08.54
- Dec: +13 28 44.3
- Discoverer: LDS
- Discoverer Number: 4904
- Components:
- First year: 1960
- Last year: 2000
- Observations: 3
- First position angle: 344
- Last position angle: 343
- First separation: 22.0
- Last separation: 22.9
- Mag first component: 16.87
- Mag second component: 18.15
- Spectral type:
- Primary proper motion RA: 330
- Primary proper motion DEC: -93
- Secondary proper motion RA: 331
- Secondary proper motion DEC: -102
- Durchmusterung:
- Notes: N