Comet C/2020 F3 NEOWISE, showing blue ion tail
The NEOWISE pics I've posted so far have been taken via a lens or small telescope on a static tripod, which limited exposure length. With the comet now visible against darker skies as the Moon wanes, I've used a star tracker here to allow longer exposures and therefore to bring out the comet's ion tail, seen here pointing towards the 12 o'clock position. (The thin line to the right of the comet is a satellite track that was on one frame).
8 x 1-minute exposures at f/4 and ISO 3200. Astro-modified Canon EOS 600D and Zeiss Jena 135mm f/3.5 lens on a Vixen Polarie star tracker.
Frames stacked in DeepSkyStacker software; curves and colour balance adjusted in Canon Photo Professional; noise reduced using Cyberlink PhotoDirector.
Comet C/2020 F3 NEOWISE, showing blue ion tail
The NEOWISE pics I've posted so far have been taken via a lens or small telescope on a static tripod, which limited exposure length. With the comet now visible against darker skies as the Moon wanes, I've used a star tracker here to allow longer exposures and therefore to bring out the comet's ion tail, seen here pointing towards the 12 o'clock position. (The thin line to the right of the comet is a satellite track that was on one frame).
8 x 1-minute exposures at f/4 and ISO 3200. Astro-modified Canon EOS 600D and Zeiss Jena 135mm f/3.5 lens on a Vixen Polarie star tracker.
Frames stacked in DeepSkyStacker software; curves and colour balance adjusted in Canon Photo Professional; noise reduced using Cyberlink PhotoDirector.