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My goal is to make a simple project which consists of classifying stars by applying Wien's displacement law.

I need public spectroscopic data about different stars from a space telescope, so that I can find the stars' peak wavelengths. Also, I need the spectoscopic data to include wavelengths from 50 nm to about 860 nm.

Here's my request: I'd like a recommendation for a space telescope that would be adequate for these purposes.

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  • $\begingroup$ Probably no single satellite covers your full range, but see archive.stsci.edu/missions-and-data $\endgroup$
    – James K
    Commented Jul 13, 2023 at 5:28
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    $\begingroup$ How much do you need down to 50nm in the UV ? Hubble (HST)-STIS cuts off at 115nm, HST-COS at 82nm and Swift-UVOT around 150nm. As @JamesK says this is likely to need combining data, for which the HST CALSPEC set of calibration standards is likely your best if you don't that farthest bit of the far UV $\endgroup$
    – astrosnapper
    Commented Jul 13, 2023 at 16:59
  • $\begingroup$ Does it have to be a space telescope? There are plenty of ground-based telescopes that have tons of data for this such as SDSS. $\endgroup$
    – zephyr
    Commented Jul 13, 2023 at 18:00
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    $\begingroup$ @zephyr you can't do shorter wavelengths than ~300nm from the ground due to the ozone cutoff in atmospheric transmission $\endgroup$
    – astrosnapper
    Commented Jul 13, 2023 at 18:35
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    $\begingroup$ Note that spectroscopic classification doesn't use Wien's law but it is an instructive exercise nonetheless. $\endgroup$
    – ProfRob
    Commented Jul 14, 2023 at 10:32

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