01398-2031
- Unique Name: 01398-2031DON 21
- RA: 01 39 50.42
- Dec: -20 31 03.4
- Discoverer: DON
- Discoverer Number: 21
- Components:
- First year: 1929
- Last year: 1986
- Observations: 4
- First position angle: 346
- Last position angle: 357
- First separation: 2.0
- Last separation: 2.7
- Mag first component: 9.6
- Mag second component: 14.0
- Spectral type: F5
- Primary proper motion RA: 55
- Primary proper motion DEC: 0
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: -21 274
- Notes: