21535+5417
- Unique Name: 21535+5417BU 841
- RA: 21 53 32.26
- Dec: +54 17 24.5
- Discoverer: BU
- Discoverer Number: 841
- Components:
- First year: 1881
- Last year: 1991
- Observations: 8
- First position angle: 194
- Last position angle: 198
- First separation: 2.0
- Last separation: 2.1
- Mag first component: 9.36
- Mag second component: 11.62
- Spectral type: K5
- Primary proper motion RA: 2
- Primary proper motion DEC: -1
- Secondary proper motion RA: 2
- Secondary proper motion DEC: -1
- Durchmusterung: +53 2728
- Notes: N