21310-1740
- Unique Name: 21310-1740HU 1313
- RA: 21 31 01.59
- Dec: -17 40 00.3
- Discoverer: HU
- Discoverer Number: 1313
- Components:
- First year: 1906
- Last year: 1991
- Observations: 15
- First position angle: 253
- Last position angle: 224
- First separation: 0.5
- Last separation: 0.7
- Mag first component: 10.59
- Mag second component: 10.17
- Spectral type: F5V
- Primary proper motion RA: 14
- Primary proper motion DEC: 2
- Secondary proper motion RA: 14
- Secondary proper motion DEC: 2
- Durchmusterung: -18 5951
- Notes: