<html><head></head><body><div class="ydp75644aa7yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><span><div dir="ltr"><br></div><div dir="ltr">Donald E. Machholz, Jr., Colfax, CA, U.S.A., reports his visual discovery of<br></div><div dir="ltr">a mag 10 comet on 2018 Nov. 7.531UT with a 0.47-m reflector (113x), the<br></div><div dir="ltr">object being diffuse with a coma diameter of 3' and showing slight motion<br></div><div dir="ltr">toward the west-southwest over 30 minutes of observation<br></div><div dir="ltr"><br></div><div dir="ltr">This is Donald's twelfth comet discovery, coming 746 search hours after his<br></div><div dir="ltr">discovery of C/2010 F4 He also observed the comet with similar appearance on<br></div></span><div><span>Nov.8.533.</span></div><div><span><br></span></div><div><div><span><span>Róbert Fidrich reports Photometry of performed by Daniel Bamberger on my 60-60s CCD images made using T20 refractor with green filters at itelescope.net Mayhill, NM show 10.2 magnitude total brighness.</span></span></div><div><span><span></span></span><br></div><div><br></div><span><span>https://www.dropbox.com/s/flb6mbw4r33eer9/machholz.gif?dl=0</span><br></span></div></div></body></html>