Noctilucent clouds, SQM -measurements, Jupiter and variable stars

Observing session #3/11-12 During couple of last nights I was making some observations. During the night 29/30.7.2011 I was making observations in Turku. First at 01.00 I checked the NLCs from the Kerttulinmäki -hil, and indeed there was a small display going on in the northern sky. The display was restricted to small area in …

Noctilucent clouds 26./27.7.2011

Observed phenomena: Noctilucent clouds Observed NLC forms: I (Veil) IIb (Bands with sharply defined edged) IIIa (Short, straight and narrow streaks) IVa: Whirls with small angular radius (0.1 - 0.5 degrees) IVb (Simple curve(s) with angular radius of 3 – 5 degrees) Brightness of the NLCs: 3 (clearly visible, standing out sharply against the twilight …

Noctilucent clouds in the sky of Turku

Observing session #2/11-12 In the night between 25./26.7.2011 there was a notable noctilucent cloud display visible in the sky of Turku. My observing place was Kerttulinmäki -hill near the downtown of Turku. I was making observations of this display in 02.00-02.15. During that time, the clouds were glowing in the northern sky, where their highest …

Report from the Cygnus -meeting of Ursa 21.-24.7.2011

The traditional summer meeting of the amateur astronomical association Ursa was organized in 21.-24.7.2011 in small town of Jokioinen, in Kanta-Häme region, Southern Finland. The event place was slightly different than usually, because now we were in the middle of agricultural landscape very close to the center of Jokioinen town. Usually the Cygnus -meeting has …

Sunspots June 2011

In June, I spent most of my time in municipality of Kuusamo, in NE Finland, where my observing site was a famous holiday resort, Ruka. Nevertheless, I wasn't having a holiday there but working! Anyway, scenary was absolutely stunning and beautiful and it was almost just like having a holiday! In June, I got many …