20438-2031
- Unique Name: 20438-2031HJ 2990
- RA: 20 43 45.32
- Dec: -20 30 49.2
- Discoverer: HJ
- Discoverer Number: 2990
- Components:
- First year: 1830
- Last year: 1999
- Observations: 5
- First position angle: 318
- Last position angle: 308
- First separation: 12.0
- Last separation: 19.6
- Mag first component: 9.84
- Mag second component: 12.3
- Spectral type: A0m A9-F0
- Primary proper motion RA: 10
- Primary proper motion DEC: -1
- Secondary proper motion RA: 8
- Secondary proper motion DEC: 7
- Durchmusterung: -21 5807
- Notes: