equipment: Takahashi FSQ-106ED, F3 Reducer 0.6x, and Canon EOS 5Dmk3-sp4, modified by Seo-san on Takahashi EM-200 Temma 2 Jr, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, Starlight Xpress Lodestar Autoguider, and PHD Guiding 2 exposure: 4 times x 5 minutes at ISO 1,600 and f/3.2 The first exposure started at 05:07:49 May 1, 2017UTC. Frames were registered at the comet with trans2 command of IRIS. site: 2,317m above sea level at lat. 24 38 26 South and long. 70 17 13 West on route B-750 near the access road to Armazones Observatory in Atacama Desert Chile |
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