Austronomer76
Comet NEOWISE on July 14th 2020
I have never seen a comet as bright as this before!
Absolutely amazing is the amount of dust and vapor this comet ejects every second: 10 tons!
Curious is the red part of the ion tail, reported to be caused by sodium.
I replaced this photograph on July 24th 2020 with a version of more subtle processing and comprising 100 instead of the former 55 exposures.
This is a stack of 100 exposures of 30 seconds each. Taken on July 14th 2020 in rural Lower Austria with a Nikon D750 and a 135mm Sigma Art lens at f/3.5 and ISO 1600. Tracking with Astrotrac; processed with Astro Pixel Processor and Photoshop.
Comet NEOWISE on July 14th 2020
I have never seen a comet as bright as this before!
Absolutely amazing is the amount of dust and vapor this comet ejects every second: 10 tons!
Curious is the red part of the ion tail, reported to be caused by sodium.
I replaced this photograph on July 24th 2020 with a version of more subtle processing and comprising 100 instead of the former 55 exposures.
This is a stack of 100 exposures of 30 seconds each. Taken on July 14th 2020 in rural Lower Austria with a Nikon D750 and a 135mm Sigma Art lens at f/3.5 and ISO 1600. Tracking with Astrotrac; processed with Astro Pixel Processor and Photoshop.