Sunspot group 2415 in hydrogen alpha.
Taken by Gary Meehan on September 18, 2015 @
Boston, MA
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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
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Details:
I imaged solar active region 2415 on 9/18/15 at 15:01 UT using my StellarVue SV90T (90mm f/7) refractor equipped with a Solar Spectrum 0.5Angstrom filter, imaged with an Imaging Source DMK 21AU618.AS camera.
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