Cygnus -summer meeting of the amateur astronomers of Finland was organized in Vihti 25.7.-28.7.2013

The traditional Cygnus -summer meeting of Finnish amateur astronomers was organized this year between 25th and 28th of July 2013 in Vihti, Southern Finland. The main local organizer of the event was the local astronomy club Kirkkonummen Komeetta (The Comet of Kirkkonummi) and national Ursa astronomical association. The event site was the summer camp site of the local parish. The site was located in the village of Ojakkala, in the shores of the Enäjärvi -lake. Weather was fine during the whole event, only friday it was raining. The amount of participants was about 150, which is clearly higher number than last year!

And because this event is organized in late-July, the nights are already getting darker, and it is possible to do some astronomical observations already! During the nights of the meeting, we did some observing together in the yard of the site, and the atmosphere was just like in some big American star partyes!

The programme was very interesting also this year! For example, lectures were given on following topics: T Pyxidis -recurrent nova (Arto Oksanen), the Moon race of the cold war between USA and USSR (Hannu Määttänen) and a lecture given by professional astrobiologist Kirsi Lehto about the new directions of the astrobiological studies. Also the Stella Arcti -awards were granted in this Cygnus -meeting. The award-winning amateur astronomers this year were Iiro Sairanen (awarded for meritorious, long-lasting visual deep sky observing) and Lauri Kangas (awarded for his active participation in amateur astronomy activities in various ways). Usually these awards have been granted in the Tähtipäivät -event, but it wasn’t organized this year, and that’s why they were granted now in the Cygnus -meeting.

After the event had ended, we had also an opportunity to visit the Komakallio -observatory center of the local astronomy club Kirkkonummen Komeetta (the Comet of Kirkkonummi) that was the main organizer of the Cygnus -meeting. In the site, there are four telescopes in minimalistic sheds. Besides this, they have also a small but warm control room for the telescopes with facilities for overnight stay for three persons. This observatory center is located very close to Helsinki, the capital city of Finland, but the site is nevertheless dark enough for making good astronomical observations!

I think this event was very succesfull, and it was fun to participate!

Copyright of the photos: © Juha Ojanperä

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Bright noctilucent clouds in the sky of Turku 19./20.7.2013

Observed phenomena: Noctilucent clouds
Observed NLC forms:

I (Veil)
IIb (Bands with sharply defined edges)
IIIa (Waves, short, straight and narrow streaks)
IVb: Simple curve(s) with angular radius of 3 – 5 degrees

Brightness of the NLCs: 4 (very bright and attracting the attention of casual observers)

Date: 19./20.7.2013
Time: 00:50-02:15
Observing place: Turku, Finland
Observing method: Photography
Technical information about photographing equipment: Canon EOS 1100D, Canon EF-S 18-55mm IS, Samyang 8mm fish eye

A bright display of noctilucent clouds was observed in the sky of Turku, Finland in the night between 19th and 20th of July, 2013. I was observing the display in the Luolavuori -hill, which is situated few kilometres south from Turku downtown. From the hill, the horizon is totally open to every direction!

On that night, there were two detached NLC areas in the northern sector of the sky. The NLC’s covered the northern half of the sky from west to east, ant the maximum altitude of the NLC’s was about 40°. Especially the NLC area located in the northeastern-eastern sky was very bright. The dominating NLC forms were veil (I), sharp bands (IIb) and short and straight waves (IIIa). These late-July NLC displays are usually very nice to observe, because the background sky is already getting darker, and the NLC’s stand out very clearly from the sky!

Bright display of noctilucent clouds 8./9.7.2013

Observed phenomena: Noctilucent clouds
Observed NLC forms:

  • I (Veil)
  • IIa (Bands with diffuse, blurred edges)
  • IIb (Bands with sharply defined edges)
  • IIIa (Waves, short, straight and narrow streaks)
  • IIIb (Wave-like structure with undulations)
  • IVa: Whirls with small angular radius (0.1 – 0.5 degrees)
  • IVb: Simple curve(s) with angular radius of 3 – 5 degrees
  • O (Unusual forms)

Brightness of the NLCs: 4 (very bright and attracting the attention of casual observers)

Date: 8./9.7.2013
Time: 01:30-02:20
Observing place: Turku, Finland
Observing method: Photography
Technical information about photographing equipment: Canon EOS 1100D, Canon EF-S 18-55mm IS, Samyang 8mm fish eye

I observed a bright display of noctilucent clouds in the night between 8th and 9th of July 2013. This display was clearly the brightest so far this summer! This display was very dynamic and it was evolving rapidly. The NLC’s covered a large area of the sky and they were concentrated on the northern sector of the sky. Only the southern sector of the sky was clear of noctilucent clouds, because the shadow of the Earth was limiting the visibility of the NLC’s. The dominant NLC forms in this display were veil (I) and sharply defined belts (IIb), but also many other forms were present. This NLC display was observed also in many other places in Europe, for example in Denmark.