Hydrogen Epsilon-Prime, extracted from the Epsilon-Raw and an adjacent context for continuum
Since Google is no longer our friend[1], thus finding the things we are looking for has become harder and harder[2], I decided to assemble a few things that help me tame JSol’Ex.
JSol’Ex Repo: https://github.com/melix/astro4j
JSol’Ex downloads: https://melix.github.io/astro4j/latest/en/jsolex.html
Help/Docs (at ImageMath): https://melix.github.io/astro4j/latest/fr/jsolex.html#imagemath
Extracting the Hydrogen Epsilon line, like it was He I D3, simple version (where, relative to CaH, epsilon is at +25px)
[outputs]
epsilon = min(range(23,27,1))
kontinuum2 = avg(range(14,18,1))
delta2 = fix_banding(epsilon – kontinuum2, 100, 50)
prime_stretched2 = linear_stretch(epsilon * delta2 + delta2)
prime_rot2 = rotate_rad(prime_stretched2, angleP)
A verbose and more complex version of the epsilon script:
