21241+2519
- Unique Name: 21241+2519BU 447AC
- RA: 21 24 07.42
- Dec: +25 18 44.6
- Discoverer: BU
- Discoverer Number: 447
- Components: AC
- First year: 1917
- Last year: 2009
- Observations: 5
- First position angle: 187
- Last position angle: 191
- First separation: 56.6
- Last separation: 57.8
- Mag first component: 6.2
- Mag second component: 11.7
- Spectral type: A2V
- Primary proper motion RA: 40
- Primary proper motion DEC: 9
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: N
