Henry Weiland discovered a possible comet on CCD images taken with the ATLAS search system on 25 may. After he posted this on the PCPP of the minor planetcenter, i decided to use a remote … Read more
I received the 0.4-m primary mirror back from Orion Optics without any charge. This is very professional of Orion Optics to help me with this problem. I tested the mirror with Foucault an ronchi and … Read more
With remote telescope from iTelescope.net i observed comet C/2016 M1 (PANSTARRS) with luminance and R-Bessel filter for Af(rho) parameter.
2 spectra are obtained during night of 19 may: 10 Cas and 6-Cep V382
H-alpha detail high-resolution spectroscopic observations of gam Cas, Phecda and cx Draconis.
several spectroscopic high-resolutions observations of stars: zet Oph, omi Her, HD138749 and 7-chi Oph
spectroscopic observations of 2 stars during night on 15 may 2018: 58-nu Cyg, kap Draconis, cx Draconis