21002+3658
- Unique Name: 21002+3658HO 147AB
- RA: 21 00 13.54
- Dec: +36 57 47.0
- Discoverer: HO
- Discoverer Number: 147
- Components: AB
- First year: 1885
- Last year: 1906
- Observations: 3
- First position angle: 353
- Last position angle: 353
- First separation: 7.0
- Last separation: 7.0
- Mag first component: 8.01
- Mag second component: 14.1
- Spectral type: K5
- Primary proper motion RA: 6
- Primary proper motion DEC: -10
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +36 4365
- Notes: