21529-0135
- Unique Name: 21529-0135BU 840
- RA: 21 52 54.78
- Dec: -01 35 07.6
- Discoverer: BU
- Discoverer Number: 840
- Components:
- First year: 1881
- Last year: 2001
- Observations: 13
- First position angle: 39
- Last position angle: 40
- First separation: 2.6
- Last separation: 3.0
- Mag first component: 10.1
- Mag second component: 11.4
- Spectral type: G0
- Primary proper motion RA: 1
- Primary proper motion DEC: -29
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: -02 5650
- Notes: