21041+3609
- Unique Name: 21041+3609SEI1386
- RA: 21 04 07.19
- Dec: +36 09 02.2
- Discoverer: SEI
- Discoverer Number: 1386
- Components:
- First year: 1896
- Last year: 2011
- Observations: 4
- First position angle: 103
- Last position angle: 151
- First separation: 25.7
- Last separation: 26.0
- Mag first component: 10.55
- Mag second component: 14.6
- Spectral type: G0
- Primary proper motion RA: -2
- Primary proper motion DEC: -5
- Secondary proper motion RA: 24
- Secondary proper motion DEC: 4
- Durchmusterung: +35 4381
- Notes: