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Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association


Taivaanvahti can also be used in Swedish and English

24.9. completed maintenance break brought new features to Taivaanvahti and opened the system in Swedish (Himlakollen) and in English (Skywarden) for users from Northern Europe. We hope that the changes will make the site easier to use for the Swedish-speaking minority and enable new forms of Nordic co-operation. The change would not have been possible without the support of the Svenska Kulturfonden and the effort that individual enthusiasts put into the translations. Warm thanks to everyone involved in the project!

Tulip mist in the golden palette

23.9. Sh2-101, or Tulip Nebula, is a rarely described object, of which there are already five observations in Skywarden. Now Erik Pirtala has also taken the fog to the desktop and brought a strong sixth contribution , the color palette of which emphasizes golden tones. From the beginning of September, the object photographed received 15,5 hours of light.

The perimeter of the moon lit the colors of the flames in the cloud

23.9. The perimeter on a full moon was dramatically looking in Ikaalinen Sisätö the other night when it lit the Altocumulus clouds with an orange flare. The picture was taken by Heidi Rikala .

The first artificial light pillars in the sky

22.9. Artificial light pillars are familiar from winter ice mists, but they are also seen as short snippets in the crystal clouds above in other seasons as well. These Petri Hakanen 22.9. The pillars seen in Kokemäki in the evening are the first of the autumn season after Maija Perttola photographed the last of spring at midnight 13/14. April. The early observation after the summer break is from 2016, when Matti Helin spotted the pillars at midnight 24/25. July.

The perimeter of the moon foretold the ring to the foot of the owls

21.9. For the old people, the perimeter phenomenon could mean a change in the weather. However, this perimeter of the Moon last night was a sign for the pearl owl in the picture that a ring was coming to the foot. Petri Martikainen, who took the picture, ringed another pearl the same night.

Cloud specialties in the skies of Helsinki and Raisio

21.9. In addition to high-atmosphere clouds, the Sky Watch special clouds category also includes six tropospheric clouds. Here are two of them recently described. On the left, the crests of the Kelvin-Helmholtz clouds seen by Georg Kieninger from a small cloud hole in Helsinki. On the right, Lasse Nurminen captured a horseshoe swirl that lasted just over a minute and was captured in Raisio.

The classic M33 in the autumn photos

20.9. The galaxy M33 in the constellation of the triangle is one of the basic objects in the night sky. This picture of Tomi Kurri is the second in Taivaanvahti after the summer break. M33 belongs to the so-called local group, the most famous member of which, in addition to our own galaxy, is the Andromeda galaxy. The exposure to Kurr's image accumulated a little on for five hours. Vesa Puistovaara took the first picture of the object in the autumn.

Thursday evening 16.9. the fireball ended up in the Baltic Sea

16.9. less than 30 observations have arrived at the Sky Watch from the fireball seen at 11:51 p.m. By far the majority of reports are from Turku and the surrounding area. According to Jaakko Visuri , the fireball working group, meteorites that may have survived from the atmosphere fell into the Baltic Sea.

Fillarilla to see the Milky Way

15.9. Field, Milky Way and cyclist admiring it. It contains the ingredients for a composition that is worth stopping by. Kari Kangasluoma says that this is his first photo of the Milky Way this autumn. We look forward to the following variations on the theme.

Northern lights 10/11. September in northern Finland

14.9. During the days, photographs of the northern lights seen in the northern parts of the country on 10 / 11.9 nights have seeped into the sky. Seija Hakala took this picture on Pallas in Muonio when she returned from a rainy trip to Norway. "There was a belt, gauze and rays. I didn't know where to shoot," says Hakala. "The disappointment of the rain disappeared while watching the fire."

The fog of North America in all its glory

12.9. The swan constellation NGC 7000, or North American Nebula, is a vast target in the sky. While the full moon is half a degree in diameter, NGC 7000 covers an area of six degrees. The fog has fit well into this canvas made by Harri Kiiskinen , which has been parsed into one of the eight partial images. In the upper right corner shines the Swan star Deneb.

The clouds of the second-night rocket were visible at dusk

11.9. The launch of the Soyuz 2.1v rocket from Russia on 9 September was visible almost throughout Finland at 11 p.m. The lingering cloud-like clouds also remained in the upper parts of the atmosphere. We know of these Terhi Törmälä, who is returning from the Northern Lights, on September 10th. thanks to the images he captured at dusk. Attached is Törmälä's sample of the phenomenon at 4.50.

The number of spots in the sun increased

11.9. It is clear from the picture taken by Kari Kuure on September 10 that there is now enough comma in our daylight. Kuure says the sunspot number is 124, which is a big number at this time of the dot cycle. “Indeed, it appears that the activated Sun has evolved remarkably rapidly in a higher direction if compared to predictions,” he writes.

Rocket launch in the sky last night

10.9. After yesterday at 11 pm, a rocket launch was seen over Finland and Sweden. The night was largely clear and this phenomenon, which lasted only minutes, has already become more than 50 observations across the country . Attached is a picture of the view taken by Pirjo Koski and Riku Poskiparra at 11.12 pm in Pyhäranta. “A dazzling silver-bluish light phenomenon that brightened in the eyes,” they describe the impression. Rocket launches are a rare treat in Finland, the previous one was seen in April 2019.

All Finnish asteroids were photographed in Artjärvi

9.9. Inspired by the Finland 100 anniversary year, the project came to an end when the last of the 201 asteroids discovered by Finns was photographed on 3 September. The first observation of the project implemented by a small team in Artjärvi was made on March 24, 2017, when the target was the asteroid 1504 Lappeenranta. Attached is a shooting contract now completed for 7267 Victormeen. A small number of observers from other parts of Finland also participated in the project. Photo K. Laihia, V. Mäkelä, T. Veikkolainen, R. Päivinen, CO Cambiselis .

The galaxy of Andromeda is in sight again

8.9. Two stunning interpretations have been uploaded to the Sky Guard from the neighboring galaxy Andromeda. Here is Aleksi Ruotsila's version , which is already the Fifth for him. “I didn’t spare with colors when the image data was good for once, and there was no need to fight with noise,” says Ruotsila. The exposure accumulated for a total of 10.3 hours. One of the pictures was taken by Erik Pirtala .

Jupiter and Saturn on autumn night

7.9. Satu Juvonen's landscape planet picture shows Jupiter and Saturn. The former is so bright that it has been surrounded by a mist rising from the pond. Juvonen says the image is a minute's exposure with tracking.

Northern lights in the Artery

6.9. Eero Karvinen photographed the northern lights in the morning hours of Sun-Mon night. This image, dominated by green and blue shapes, has captured the sub-storm that occurred at 3 p.m. "The blue rays were distinguishable for a while," Karvinen writes. He also sheds light on the formation of color, which occurs from "a suitable mixture of cationic nitrogen molecule and atomic oxygen emission."

In the north, on the other hand, spectacular halos

6.9. For the third time in a short time, a handsome halo show is seen in the north facing the country. This time starring halos that emerged from tile crystals. They created a horizon ring with a powerful 120 ° side sun and an arc of a bright zenith environment shining high into the sky in the spectrum. Here on the left are photos of Joni Alavesa from Simo and on the right a sample of I from an anonymous observer.

Sumukaari and glooria dronella

6.9. The drone offers the photographer a longer hand than a natural light photographer, especially when it comes to fog phenomena. Petri Martikainen had been waiting for foggy weather for a long time to get his drone into action and finally succeeded this morning. A mist mattress less than 50 meters thick was beautifully drawn by a thick fog arc and a small gloor disc. A few days earlier, Vesa Toropainen photographed a similar view while soaring down above the clouds.