21509-3151
- Unique Name: 21509-3151LDS4915
- RA: 21 50 47.79
- Dec: -31 51 26.5
- Discoverer: LDS
- Discoverer Number: 4915
- Components:
- First year: 1960
- Last year: 1999
- Observations: 2
- First position angle: 141
- Last position angle: 124
- First separation: 3.5
- Last separation: 3.2
- Mag first component: 11.61
- Mag second component: 12.1
- Spectral type:
- Primary proper motion RA: -232
- Primary proper motion DEC: -46
- Secondary proper motion RA: -232
- Secondary proper motion DEC: -46
- Durchmusterung:
- Notes: