Observing site: Stormälö, Parainen, Finland
Instrument: N250/1200 mm (10” Newton)
SQM: 21.03 – 21.00
Darkness of the background sky: from 2 (a scale from 1 to 5, 1 best, 5 worst)
Seeing: 2 (a scale from 1 to 5, 1 best, 5 worst)
Weather: Clear sky, calm, light breeze, only very thin layer of snow on the ground, no Moon, +2C – -3C, some mist rising from the sea at the end of the session
Objects observed: NGC 1980, 2215
This was my last observing session in January 2017. This time I was able to do some observing in my Stormälö observing site in Parainen. During the night conditions were relatively good, but dew and frost were causing problems in the later part of the session. During this session I observed two objects listed in Herschel 400 list: NGC 1980 and 2215.
This object is a small bright nebula immediately to south from famous Orion Nebula Messier 42. The cluster is also known as Collinder 72. NGC 1980 refers to the nebula. I tried to observe the nebula, and I was quite convinced that I was able to see it. Of my observation, I wrote following notes:
@50x: a small, poor cluster, that is located immediately south of M42, the cluster is relatively well detached. Not very well concentrated. Some weak nebulosity is visible around the brightest star of the cluster (iota Ori) and slightly SW from that star. The outer edges of M42 are extending all the way to iota Ori. The nebulas were visible without filter, UHC filter enhanced the view only slightly. No moisture observable on optical surfaces, good conditions.
My second and last object for this session was NGC 2215, an open cluster in Monoceros. This object is located 2 degrees WSW from beta Mon. About this object I wrote as follows:
@71x: an obvious open cluster, pretty well concentrated, well detached, relatively faint-starred.
So, that was my last observing session in January 2017. Next time I was making observations in February, I’ll post something about the February observing sessions later.