Observing site: Ulvila Observatory, Finland
Instrument: C280/2750 mm (11” Catadioptric)
Darkness of the background sky: 3
Weather: Clear sky, calm, no Moon, no snow, 0C, aurora belt/arc in northern sky
Objects observed: NGC 4151, 4156
During this night I was again at Ulvila observatory. During the night, there was again the weekly club meeting of Porin Karhunvartijat. After most people had left, I stayed at the observatory with couple of my astro friends. We were casually observing some common objects, and I was able to do one proper observation. This time I observed NGC 4151 and 4156 in Canes Venatici.
My main target was NGC 4151, a barred spiral galaxy located in Canes Venatici. The object is classified as SBab R. This object is located about 5 degrees SW from beta CVi. In the same field with this galaxy, there was also a smaller and fainter galaxy, NGC 4156. This SBb galaxy is located only 5′ NE from 4151. Of these two I wrote following notes:
@165x: two galaxies in the field: NGC 4151 and 4156. NGC 4151 is the brightest of these two, it is rather bright and slightly oval-shaped, the galaxy has a bright, stellar core. NGC 4156: this galaxy appears as faint, diffuse featureless patch of light.
After having observed NGC 4151, I had observed every galaxy in Canes Venatici that are listed in Herschel 400!
This observing session was my third in March 2017 and second last in season 2016-2017. So I still had one more observing session before summer break. I’ll write more about that later!