Location of Photo:
Pommier Observatory, Portland, OR, USA
Date/Time of photo:
2020-07-19 05:59-06:23 UT
Telescope/Mount: Celestron Super C8+ with f/6.3 focal reducer/corrector, Byers Drive. Camera: Canon EOS 20D Location: Pommier Observatory, Portland, OR, USA Date: 2020-07-19 05:59-06:23 GMT Exposures: Twenty-four x 15 seconds at ISO 800.
This image of comet NEOWISE (C/2020 F3) taken July 19, 2020 GMT, shows significant changes from my image taken July 13, 2020 GMT (seen several posts back). The tail points a different direction as the comet proceeds in its orbit around the sun. The tail is no longer bifurcated. Instead, it now shows multiple streamer rays. The coma now glows teal-green, due to the gasses carbon monoxide, cyanide, and diatomic carbon being stimulated by ultraviolet sunlight.