20423+2109
- Unique Name: 20423+2109BRT2480
- RA: 20 42 14.28
- Dec: +21 09 15.4
- Discoverer: BRT
- Discoverer Number: 2480
- Components:
- First year: 1894
- Last year: 2006
- Observations: 4
- First position angle: 231
- Last position angle: 233
- First separation: 4.6
- Last separation: 5.1
- Mag first component: 11.12
- Mag second component: 11.7
- Spectral type:
- Primary proper motion RA: 4
- Primary proper motion DEC: 2
- Secondary proper motion RA: -13
- Secondary proper motion DEC: -39
- Durchmusterung:
- Notes: