21078+2945
- Unique Name: 21078+2945MLB 715AB
- RA: 21 07 48.28
- Dec: +29 45 24.4
- Discoverer: MLB
- Discoverer Number: 715
- Components: AB
- First year: 1931
- Last year: 1998
- Observations: 5
- First position angle: 36
- Last position angle: 39
- First separation: 3.6
- Last separation: 5.2
- Mag first component: 9.78
- Mag second component: 13.61
- Spectral type: K8
- Primary proper motion RA: 85
- Primary proper motion DEC: -247
- Secondary proper motion RA: 88
- Secondary proper motion DEC: -248
- Durchmusterung: +29 4321
- Notes: V