gnu: Add python-stsynphot.

* gnu/packages/astronomy.scm (python-stsynphot): New variable.

Signed-off-by: Efraim Flashner <efraim@flashner.co.il>

gnu/packages/astronomy.scm

@@ -2122,6 +2122,40 @@ task}.")
 image processing functions: @code{xyxymatch}, @code{geomap}.")
     (license license:bsd-3)))
 
+(define-public python-stsynphot
+  (package
+    (name "python-stsynphot")
+    (version "1.2.0")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "stsynphot" version))
+              (sha256
+               (base32
+                "0qkdh47j84v7fzri7bmi1jcmggdqq0a8byamfm73d8mbz86v8sn4"))))
+    (build-system pyproject-build-system)
+    (arguments
+     (list
+      ;; XXX: Tests fails on missing file, it might need to be downloaded,
+      ;; disable them for now.  astropy.utils.exceptions.AstropyUserWarning:
+      ;; Failed to load Vega spectrum from
+      ;; /grp/redcat/trds/calspec/alpha_lyr_stis_010.fits;
+      #:tests? #f))
+    (propagated-inputs (list python-astropy
+                             python-beautifulsoup4
+                             python-matplotlib
+                             python-numpy
+                             python-scipy
+                             python-synphot))
+    (native-inputs (list python-pytest python-pytest-astropy
+                         python-pytest-astropy-header python-setuptools-scm))
+    (home-page "https://github.com/spacetelescope/stsynphot_refactor")
+    (synopsis "Synthetic photometry using Astropy for HST and JWST")
+    (description
+     "This package provides a replacement for IRAF STSDAS SYNPHOT and ASTROLIB
+PYSYNPHOT, utilizing Astropy covering instrument specific portions of the old
+packages for HST.")
+    (license license:bsd-3)))
+
 (define-public libnova
   (package
     (name "libnova")