21040+2539
- Unique Name: 21040+2539SLE 515
- RA: 21 03 58.36
- Dec: +25 39 03.8
- Discoverer: SLE
- Discoverer Number: 515
- Components:
- First year: 1998
- Last year: 2008
- Observations: 3
- First position angle: 349
- Last position angle: 349
- First separation: 20.2
- Last separation: 19.9
- Mag first component: 10.8
- Mag second component: 13.1
- Spectral type:
- Primary proper motion RA: 3
- Primary proper motion DEC: 0
- Secondary proper motion RA: -42
- Secondary proper motion DEC: 26
- Durchmusterung:
- Notes:
