21333+3940
- Unique Name: 21333+3940MLB 900
- RA: 21 33 20.96
- Dec: +39 39 49.6
- Discoverer: MLB
- Discoverer Number: 900
- Components:
- First year: 1933
- Last year: 2002
- Observations: 3
- First position angle: 282
- Last position angle: 279
- First separation: 6.6
- Last separation: 6.9
- Mag first component: 13.4
- Mag second component: 14.4
- Spectral type:
- Primary proper motion RA: 0
- Primary proper motion DEC: 3
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: