Comet Burnham, photographed by H.N.A. Maclean (Niagara) on 1960 May 2 (22:33-22:38 EST) with an 8" f/8 reflector, 250x.
This image is from the RASC Comet and Nova Section Archive. [View Source [5]]
Links:
[1] http://www.rasc.ca/category/archivetags/1960
[2] http://www.rasc.ca/category/archivetags/comet
[3] http://www.rasc.ca/category/archivetags/hughmaclean
[4] http://www.rasc.ca/category/image-galleries/national-archives/archives-1960s-0
[5] http://www.rasc.ca/content/600503cometburnham