21020+2815
- Unique Name: 21020+2815LDS2936
- RA: 21 01 57.42
- Dec: +28 14 48.9
- Discoverer: LDS
- Discoverer Number: 2936
- Components:
- First year: 1953
- Last year: 1998
- Observations: 2
- First position angle: 231
- Last position angle: 237
- First separation: 5.0
- Last separation: 4.4
- Mag first component: 17.9
- Mag second component: 19.5
- Spectral type:
- Primary proper motion RA: 66
- Primary proper motion DEC: -10
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: