comet and spectroscopic observation in night 17/18 aug. 2018

some cirrus clouds are in the sky, but i started with the observations of comets and see what happen further during night.  comets that are observed are: 21P/G-Z, 29P/S-W, 37P, 38P, 46P, 64P, 78P, 137P, 200P (not detected), C/2017 K2, C/2017 K4, C/2017 M4, C/2017 M5, C/2018 KJ3, P/2018 L4 (not detected).

As spectroscopic observation i obtained a high resolution H-alpha detail of lam Cyg with the L200 spectrograph with 1800 l/mm on a C11 telescope.

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