In the morning, a very long protuberance could be seen at the edge of the sun, which was moving quite quickly. I started the timelapse shooting on the balcony while I continued doing remote work at home. In one video, a seagull happened to fly right in front of the sun.

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In the evening, I noticed that the JUICE sonar, launched earlier that day, could be seen just above the trees at the Komakallio observatory in Kirkkonummi. There were some clouds in the southern sky, but the sonar could still be seen. Next to the probe, the second stage of the launch vehicle also traveled in the same direction.

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On the night of the shoot, comet C/2022 E3 (ZTF) passed Mars from here on Earth, and the pass fit perfectly into the field of view of my telescope. I photographed the object for about three hours that evening. The post-processing of the images was challenging, as both the comet and Mars moved a considerable amount relative to the stars during the three hours. We had to "cheat" a bit in the image processing, so that the long-exposed comet, the stars and Mars were simultaneously accurate. The images were first aligned according to the stars. Median stacking these images resulted in an image wher...

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I photographed such a one-night quick project from the classic site of Kassiopeia, Sydänsumu IC 1805. The exposure took a total of 4.5 hours, but the subject is so bright that the picture turned out quite spectacular. There are many interesting details in the image, such as the planetary nebula WeBo 1, which was only discovered in 1995, in the last close-up.

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I have photographed this IC 5146 nebula, called the Shell Nebula, on a total of seven different nights throughout the fall, and the exposure accumulated in total for about 10 hours. Often, only that bright red emission haze is shown from this object, but with such a wide image field, there was also a lot of surrounding dark fog, which is not visible unless you expose the object for a very long time. The weather hasn't really been kind throughout the fall, that's why I spent the whole fall like this, but I'm quite satisfied with the end result. The image was challenging to process d...

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I was on a summer vacation in Lofoten, Norway. 31.8. it was my last evening in the photogenic village of Reine, and the weather was about to clear up after the rain showers in the morning. Nights in northern Norway are quite short, and it didn't get really dark yet. However, I followed the aurora borealis forecasts and was outside with the camera for quite a long time, but nothing could be seen in the direction of the Sakrisøy island in the north. Then I looked to the south and there in the direction I could see a dim arc in the pale sky. The arch can be seen in the seventh image of the ob...

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The Heavens-Above service predicted that a long line of Starlink communication satellites could be seen in the sky, the launch vehicle of which was visible in the Finnish sky the other night. I went to hang out on the balcony and the view surprised me with its spectacularity. I quickly tried to shoot a video of the satellite line with the phone's camera, and adjust the video to be brighter in post-processing. The image quality is not very flattering, and the focus escapes at one point in the video, but at the beginning of the video, you can still see quite comfortably a bunch of satellites...

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Weather permitting, I photographed the sun again at the H-alpha wavelength with a self-built Sol'Ex spectroheliograph. The image is a stack of several scans over the sun.

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Over the early summer, I built Sol’Ex spectral heliography according to Christian Buil’s instructions . The device can capture the sun at any wavelength of visible light. Attached is an image of the chromosphere of the sun this morning in the light of the H-alpha wavelength (656 nanometers).

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I photographed these traditional spring objects Messier 81 and Messier 82 with the dream of also seeing the dimly visible Integrated Flux Nebula (IFN) around the galaxy, which is made up of clouds of gas and dust illuminated by the entire Milky Way and not a single star. Surprisingly, that then finally came to light, although the images may not take terribly close viewing even after 13 hours of exposure. I collected exposures for this project on a total of three different nights during March.

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The image on the left shows the reflection fog IC 2169, and on the right the emission fog surrounding the Christmas tree set. I’ve been filming this whole thing on three different nights here over the winter. The observation also has a couple of tighter delimitations to get a better look at the details.

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I photographed the Seulaste constellation in the constellation Taurus on two nights in January, for a total of five hours. If the weather had favored, I would have photographed this subject for much longer, but clear moonless climates have been rare. Somewhat dim clouds of dust still stand out around the Screens, and I'm quite happy with the result.

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In the footsteps of Arto Oksanen, I photographed the James Webb space telescope, which is diverging from Earth. The whole evening was very cloudy, but just before midnight the sky opened to a quarter, and I got 9 minutes of exposure, which was found as if a small moving point had been found. I connected to the observation the maximum stack of images in which the object appears as a streak, and an animation in which the motion of the space telescope is shown.

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The fog of Orion and its surroundings will not be visible to Komakallio in Kirkkonummi for a very long time at a time, so I photographed this subject on four different nights. The image is a 3-part mosaic, and each part is exposed for a total of about 4 hours. At the bottom left you can see both the Flame Nebula NGC 2024 and the Horse Head Fog IC 434, and at the top right you can see Orion's large gas fog M 42.

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I photographed this subject as early as December 2021, but the images have been waiting to be processed for a few months due to other hustle and bustle. Now I finally got the reading to the point where I bothered to put the picture out. The image shows the emission nebula NGC 1499, or California nebula, found in the constellation of Perseus. The bright blue star at the top of the picture is Menkib, whose ultraviolet radiation causes the mist to glow at a few different wavelengths. The fog is about 100 light-years long in total, and is visible in the sky at about two and a half degrees, filling...

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I photographed a very wide 4x4 mosaic of the most interesting area of the constellation Swan. Because there have been only limited clear weather and the mosaic processing is laborious, each mosaic panel has been exposed for only 5 minutes with three different narrowband filters, for a total of 15 minutes. Because there are 16 panels, 4 hours have been spent on the entire image over a couple of evenings. The size of the image finally came to a whopping 330 megapixels! At the top left is the famous North American fog, or NGC 7000. At the bottom right is the Butterfly Fog IC 1318 and the Sickle F...

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Last Monday, much of the night was clear, so I put a new camera to capture the Triangle galaxy for four hours. This seems to be the first "broadband image" I photographed with the new camera and filters, the previous ones have been narrowband images. It feels good for this purpose too! In the early evening in the sky, some upper clouds sailed, but I photographed a different subject at the time. Later in the evening, the sky became completely clear, just as I switched to this destination.

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Despite the cloudy weather in the fall, I photographed a two-part mosaic of Harsosumu, a large supernova remnant in the constellation of Swan. The image was taken with 3 nm narrowband filters. H-alpha images were shot during the full moon on October 18th. O-III and S-II images are described on 1.11. at about the new moon. During the filming, a thin cloud of overhead sailed in the sky, so transparency was not at its best. The exposure on both mosaic panels is only 50 minutes per filter, which is much less than I hoped for, but the weather is what it is. The second image of the observation is an...

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During the summer, I switched a notch to a larger star camera, and finally got to take the official first light with it. I targeted the classic North American fog, which is very hollow this fall. With the new camera, the field of view is so wide that it can also accommodate the adjacent Pelican Mist, i.e. the IC 5070. In addition to the full view, I added a couple of details in 100% size to the observation. The other little bit sadly left a small satellite chip that I missed during the stacking phase, and I no longer wanted to leave to do the whole processing again because of the Streak.

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I followed the weather radars as I approached the fast-moving rainforest front towards Helsinki. I was at work, and I managed to slip in for a short time to peek out the windows of the meeting room in the corner of the house. At about 2:10 p.m., a fine avalanche began to separate over the downtown houses. The cloud moved quickly across the sky. The rainy area behind the avalanche stood out strikingly green. As the cloud swept over, I returned to work and watched the rain and lightning from the window. Apparently there were severe gusts of wind, but they are more difficult to detect in the city...

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