21441+2845
- Unique Name: 21441+2845ES 521DE
- RA: 21 44 19.17
- Dec: +28 46 53.7
- Discoverer: ES
- Discoverer Number: 521
- Components: DE
- First year: 1907
- Last year: 2012
- Observations: 5
- First position angle: 270
- Last position angle: 283
- First separation: 14.3
- Last separation: 12.6
- Mag first component: 6.94
- Mag second component: 13.3
- Spectral type: A5
- Primary proper motion RA: -1
- Primary proper motion DEC: -54
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +28 4171
- Notes: NU
