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A 12-year sequence of telescope images of a star and four planets orbiting

402 points · 82 comments · mariuz

  1. Kaxo · · focus · HN ↗
    The noise from the blocked-out star noticably decreases in 2017. Is that due to changes in the stars' activity cycle, or is that due to better processing/capture technology?
    1. ajcp · · focus · HN ↗
      I believe it's because the star's brightness does fluctuate, so activity cycle based?
      1. wthomp · · focus · HN ↗
        Not stellar activity — a flare wouldn’t be visible on this scale of image. The main concerns are the observatory —- how aligned all the many dozens of optics are — and the earths atmosphere on the nights the target was observed.
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