21331+3938
- Unique Name: 21331+3938MLB 899AB
- RA: 21 33 08.33
- Dec: +39 38 09.6
- Discoverer: MLB
- Discoverer Number: 899
- Components: AB
- First year: 1933
- Last year: 1935
- Observations: 3
- First position angle: 41
- Last position angle: 51
- First separation: 3.5
- Last separation: 3.2
- Mag first component: 11.0
- Mag second component: 11.4
- Spectral type: PN
- Primary proper motion RA: -12
- Primary proper motion DEC: -17
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: N
