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Lightbulb 50micron slit 15mmeyepiece StarAnalyzer1 grating Web


Lightbulb 50micron slit 15mmeyepiece StarAnalyzer1 grating Web

Spectrum of my office incandescent light fixture (with a glowing filament) imaged with my Skywatcher EvoGuide 50mm f4.8 apo refractor with a right angle diagonal, a 2x barlow lens with a 50 micron slit seated at the front end, and a StarAnalyzer 100 grating located 65mm from the sensor of my ZWO ASI178MM camera.

It took three separate frames (each was a stack of 10 each in AutoStakkert) stitched together seamlessly to get the whole spectrum on a single image. This spectral image was 3864 pixels wide. To meet posting guidelines I reduced this to 1600 pixels and posted in jpg format.






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