<p>My goal is to make a simple project which consists of classifying stars by applying <a href="https://en.wikipedia.org/wiki/Wien%27s_displacement_law" rel="nofollow noreferrer">Wien's displacement law</a>.</p>
<p>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.</p>
<p>Here's my request: I'd like a recommendation for a space telescope that would be adequate for these purposes.</p>

CC BY-SA 4.0
2023-07-13T05:28:52.337Z
Probably no single satellite covers your full range, but see https://archive.stsci.edu/missions-and-data
James K
CC BY-SA 4.0
2023-07-13T16:59:15.697Z
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](https://www.stsci.edu/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/calspec) set of calibration standards is likely your best if you don't that farthest bit of the far UV
astrosnapper
CC BY-SA 4.0
2023-07-13T18:00:09.860Z
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.
zephyr
CC BY-SA 4.0
2023-07-13T18:35:58.043Z
@zephyr you can't do shorter wavelengths than ~300nm from the ground due to the ozone cutoff in atmospheric transmission
astrosnapper
CC BY-SA 4.0
2023-07-14T10:32:24.380Z
Note that spectroscopic classification doesn't use Wien's law but it is an instructive exercise nonetheless.
ProfRob
<observational-astronomy><amateur-observing><spectroscopy><stellar-classification>
Space telescope spectroscopic data for stellar classification using Wien's law
periwwinkle
# Space telescope spectroscopic data for stellar classification using Wien's law

(Asked by: username_0 on 2023-07-13)

My goal is to make a simple project which consists of classifying stars by applying [Wien's displacement law](https://en.wikipedia.org/wiki/Wien%27s_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.

**Tags:** observational-astronomy, amateur-observing, spectroscopy, stellar-classification
> **Comments:**
> **username_1**: Probably no single satellite covers your full range, but see https://archive.stsci.edu/missions-and-data  
> **username_2**: 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](https://www.stsci.edu/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/calspec) set of calibration standards is likely your best if you don't that farthest bit of the far UV  
> **username_3**: 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.  
> **username_2**: @zephyr you can't do shorter wavelengths than ~300nm from the ground due to the ozone cutoff in atmospheric transmission  
> **username_4**: Note that spectroscopic classification doesn't use Wien's law but it is an instructive exercise nonetheless.  

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## 0 answers

