Hipparcos Parallel Coordinates

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    <h1>Parallel Coordinates - <a href="https://astrostatistics.psu.edu/datasets/HIP_star.html">Hipparcos dataset</a> - <a href="https://en.wikipedia.org/wiki/Hertzsprung%E2%80%93Russell_diagram">Hertzsprung-Russell Diagram</a></h1>
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    <button id="hide-ticks">Hide Ticks</button>
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      Drag along a vertical axis to brush<br/>
      Tap the axis to remove its brush                                          
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