21036+5358
- Unique Name: 21036+5358HDS2999Aa,Ab
- RA: 21 03 38.86
- Dec: +53 57 50.2
- Discoverer: HDS
- Discoverer Number: 2999
- Components: Aa,Ab
- First year: 1991
- Last year: 2006
- Observations: 2
- First position angle: 8
- Last position angle: 358
- First separation: 0.3
- Last separation: 0.3
- Mag first component: 8.8
- Mag second component: 10.5
- Spectral type: A2
- Primary proper motion RA: -2
- Primary proper motion DEC: -14
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +53 2540
- Notes: N
