21024+3409
- Unique Name: 21024+3409GYL 29
- RA: 21 02 24.77
- Dec: +34 08 34.6
- Discoverer: GYL
- Discoverer Number: 29
- Components:
- First year: 1893
- Last year: 2012
- Observations: 7
- First position angle: 171
- Last position angle: 178
- First separation: 13.6
- Last separation: 14.0
- Mag first component: 8.81
- Mag second component: 10.3
- Spectral type: K5
- Primary proper motion RA: 13
- Primary proper motion DEC: -5
- Secondary proper motion RA: -4
- Secondary proper motion DEC: -12
- Durchmusterung: +33 4126
- Notes: