GPI was originally thought able to directly image tens of planets but so far has only discovered one new planet?

Why is this?

From Gemini Observatory; Adaptive optics

Gemini Science Image posted on Gemini Observatory web page, 13 August 2015


  • $\begingroup$ Just the one is extremely impressive IMO. The angualar separation is tiny. $\endgroup$
    – StephenG
    Jun 4 '21 at 6:59
  • 2
    $\begingroup$ The Gemini Planet Imager Exoplanet Survey has, halfway through its total sample of 600 stars, detected a total of six planets (and three brown dwarfs), although most of these had been previously identified in earlier, smaller studies (ui.adsabs.harvard.edu/abs/2019AJ....158...13N/abstract). $\endgroup$ Jun 4 '21 at 8:40
  • 2
    $\begingroup$ Can you say where you saw that the GPI would discover tens of new planets (as opposed to directly imaging tens of planets, which is obviously something different)? $\endgroup$
    – ProfRob
    Jun 4 '21 at 12:49
  • 1
    $\begingroup$ @ProfRob It was years ago. I may have misremembered. $\endgroup$
    – sno
    Jun 4 '21 at 16:31

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