#bongaalinnunrata sky near Ylänen is dark to southern Finns, and I have spent numerous companies in this place. It is 40 km as the crow flies to the center of Turku, but the horizon to the south is still quite pale. I will also include one old (taken on 9 September 2013) picture from Enontekiö, because on my autumn trip this autumn, the clouds did not allow the Milky Way to be seen. The sky in Lapland is really dark, especially in Enontekiö, as there are no large ski resorts with illuminated slopes. The photo was taken just 10 km east of Enontekiö's largest agglomeration, Heta. Although th...

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One question I often hear is, "What is that bright star down near the horizon that flickers in all the colors of the rainbow?" Usually it is Sirius whose light is scattered like a prism by the variation of atmospheric refraction. I experimented with what Sirus looks like when photographed from the arm with a multi-second exposure. There were quite interesting looking and colored patterns.

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For once, I happened to be in the right place at the right time, and the weather also favored shooting the moonrise.

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Having recently been admired mainly by the clouds, I came to examine a rainbow image from last summer showing an interference arc and a side rainbow. What caught my attention was that the distance between the side and main rainbow is not constant and the main rainbow does not look like a circle. If the interference arcs are caused by flattening of appropriately sized droplets, the main rainbow should also be slightly flattened at the apex (David K. Lynch & William Livingston: Color and Light in Nature, pp. 119-121). In the second image, I cut a circular section from the original. The image is ...

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I tried a new tik-tak tracking device in Saaronniemi, Ruissalo. The image is combined from two images: the starry sky is exposed for 279 s with an aperture of 2.8 ISO 200, the landscape for 45 s with an aperture of 2.8 ISO 400.

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A rare, distinctive 22-degree tire in the Turku sky.

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Tursa Ursa organized Bonga Milky Way evening in Ruissalo Saaronniemi on September 24. As you can see from the picture, there were a lot of people there. The weather favored the event, the Milky Way was visible to the naked eye, although the wasted light faded from the sky pretty much. Visitors received information about the starry sky and star hobby, as well as star photography guidance. Deep sky objects were also viewed with a telescope. The disadvantages of wasted light, and especially glare, did not need to be demonstrated, the bright lights of the beach, with considerable lateral leakage, ...

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#bongaalinnunrata Finally a bright evening. Ruissalo's Saaronniemi opens up a moderately wasteless sky between the south and the west, so the cape is a popular place to shoot when there is no time to go further. This time the view was somehow dim and the sky around the horizon was lighter than usual - was it due to the cloud of smoke and dust mentioned in the news the next morning? I crunched an image like this, but the contrast to the eye was considerably weaker; especially near the horizon the Milky Way was just barely visible.

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#bongaalinnunrata I tried to catch the Milky Way on a cell in Luolavuori, a couple of kilometers from the center of Tutu. The shooting landscape is away from the center, but the sky is very light. The Milky Way is barely visible in the original image; I have processed this image to improve the contrast. With the naked eye I could not detect the Milky Way. At the same time, I paid attention to the efficient floodlights at the nearby heating center, which are directed horizontally and also dazzle the traffic coming to the center downright dangerously. In addition, the road section itself is unli...

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#bongaalinnunrata There was already fog in the city when we left, but we got to Kolkannokka in Saaronniemi 15 minutes before the arrival of the fog, which was accompanied by the roar of the fog horns of Swedish ships. I only had time to take three pictures, and the composition was left uncorrected. However, the Milky Way was nicely visible, better than the last time the Sahara dust and Portuguese smoke faded from the sky.

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I was in a hurry when, as I picked up the morning paper from the box, I noticed a colorful circle around the Moon - and the cloud that caused the circle was just flying in front of the Moon. I had time to take a couple of pictures, but the focus had to be done a bit hastily. In image processing, I didn’t touch on color adjustments (“Vibrance” and “Saturation”), but I did control sharpness, exposure, and “Clarity”. Interestingly, the hoops are irregular. Is it due to a variation in the crystal / droplet size of the cloud?

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The ring was visible for a while, but judging by Paula Mattila's observation, it was also a little earlier that day. Clearly the perimeter is forming in the same cloud that later reached me

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On the day of the crossing, Turku had great observation and shooting weather. My companion and I agreed that he would show the passage to those interested (everyone who came to the scene wanted to look into the telescope) and I would shoot. I took a series of pictures every 20 minutes and a few more, Kuta's series Mercury's print in front of the Sun. In Turku, the overpass was completely visible in theory, but in practice Mercury disappeared into thermal vibration a few minutes before the end of the overpass, as the Sun was below one degree. Combining a series of images turned out to b...

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As the opening image of the Milky Way, I took a fisheye photo in Sastamala. A meteor or satellite also happened to this image. I’m not sure which one, because on closer inspection, the wire seems to have been cut at both ends. The subject has thus moved during the 30-second exposure of the angular interval shown in the image - in my opinion a slow meteor

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In the picture, the brightest stars have a clear perimeter. I experienced it as a disadvantage and suspected that the perimeter was due to a slight fogging of the lens, but I am sending a picture of Lasse Nurminen's picture as an extension of the awakened central house. There were no frames in the pictures I took earlier that night.

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On Christmas Eve, I snuck for a moment to photograph Wirta. Without tracking and when the Moon was still almost full, the result didn't have to be mentioned, but I tried Väisälä's colon method and turned the image into a negative for the pictures I took every 15 minutes - Väisälä's records are also negative. This is a must try for one of their little planets!

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Seen from a cliff northeast of Naantali, there are no very bad sources of wasted light in the west, but light pollution from the east fades the sky so much that the zodiac light is barely visible in the picture - at least it seems to me. I couldn't tell it apart. Looking at the pictures later, I noticed distant northern lights together.

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A good weather and moderate raven forecast predicted me to spend the night in Kurjenrahka National Park. The northern lights were quite modest, but in between there were dim rays above a brighter arc.

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At the request of the northern lights, I spent the night in Kurjenrahka National Park. There were quite modest northern lights on the north side, but the starry sky over the old forest was more impressive. The Milky Way was otherwise well visible, but its lower part was dimmed by the waste light.

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The perimeter around the Sun, I think, resembles a pollen perimeter, which of course it is not. I only noticed it in the picture because the Sun was so bright you couldn’t look at it - my friend called it soft-edged. The image was taken at a focal length of 34 mm for an MFT cell, so the width of the image area is about 28 degrees. We were just on the upper limit of the ice mist, and the humidity in the air was so high that the bigger camera fogged up so fast I couldn’t shoot with it. The smaller one I got warmed with my hands enough that the outer surface of the lens finally dried. When we lef...

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