Orbit of the star Sirius B

• Orbit of the star Sirius B by cube on 22 Feb, 2022 15:15
• Hello, star Sirius A is about 8.6 ly from Earth Sirius B orbiting Sirius A is about 8.7 ly from us (a difference of 0.1 ly or 6324 AU), yet Sirius B's orbit is at maximum at 31.5 AU from Sirius A and even taking into account the margin of error of their parallax the two stars are still much further apart than 31.5 AU. What can explain this?
• #1 by Orbiter on 22 Feb, 2022 15:33
• Sirius is exactly 8.611 lyr from Earth. Sirius B being listed as being 8.7 lyr from Earth is probably just a typo or an error.
• #2 by daedalus1 on 22 Feb, 2022 15:33
• Your distance from earth is wrong. They are the same distance.
• #3 by cube on 22 Feb, 2022 16:23
• I found the parallax of the two stars here:
  Sirius A: http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=sirius+a&submit=SIMBAD+search
  Sirius B: http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=sirius+b&submit=SIMBAD+search
  
  and here for a parallax calculator to be faster: https://www.translatorscafe.com/unit-converter/fr-FR/calculator/parallax-distance/
  
  And I looked at the Sirius B star on the Gaia catalog and it has the same parallax as on simbad.
  This error is weird