Contact information

Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association

Newest commented observations

Pollen corona

9.6.2023 at 22.10 - Mustasaari, Raippaluoto (III)
Timo Alanko, Vaasan Andromeda

I would stop by the Raippaluoto bridge, feeling the pollen ring of the pines. There was no way to fit the pylon of the bridge as cover, when the helicopter had also stayed at home. Well, at home I also tried shooting with a helicopter. Yes, that circle can be seen even in the wide field of view of the copter.

Images: 6 pcs • Comments: 1 pcs

Primary rainbow

4.6.2023 at 20.45 - Kouvola (I)
Tero Sipinen, Ursa (Etelä-Suomi)

Returning from a fishing trip tinged with rain showers, I told my daughter that we might see a rainbow again. After a while I turned my attention to the cloud, the lower part of which was narrowly lit and the upper part was in shadow. The girl noticed that there was a piece of rainbow near the cloud. After a couple of minutes, I found a stopping place where I could document the bad guy. During the shooting phase, the arc was already clearly visible better than at the time of the first sighting, so it was well done. I could very well have missed the entire arc even though I was looking at the c...

Images: 2 pcs • Comments: 1 pcs

Rocket-related clouds

23.3.2023 at 20.10 - 21.00 - Lohja (I)
Jari Virtanen, Ursa (Etelä-Suomi)

The BROR exam in Kiruna was planned for 12-22.3, but the weather prevented the start and the top. starting company and ilm. the last such batch was added on 23.3. On Thursday 16.3, I was already at the shooting location, until the departure was interrupted 1/2 hour before the departure based on the data of the weather balloon sent. After a week I was at the same place for the second time. I followed the departure with my cell phone and when the rocket was launched, I looked at the sky and there it was already first. barium cloud in the sky! Fortunately, I already started the cameras 10 minutes...

Images: 7 pcs • Comments: 1 pcs


9.6.2023 at 11.15 - Tampere (IV)
Tapio Lahtinen, Tampereen Ursa

The cloud fine didn't hit this time when I got the new camera in my hands. It is known that a color camera is not the best choice for solar photography, but the intention is to use the camera for other purposes as well, and the choice was also influenced by the increased surface area and number of pixels. The sun fit comfortably on the cell with the Lunt solar tube, even though 1.5X barlow glass was also used. This still needs some practice, but it looks reasonably promising. Edit: in the afternoon I made a small training animation of the most spectacular prot. And I changed the main image...

Images: 3 pcs • Comments: 1 pcs


9.6.2023 at 08.16 - Porkkala (III)
Ben Kalland, Ursa (Helsinki)

I didn't plan this. I was photographing a sunspot in the morning when Finnair's Airbus hit the picture. If I had left out the barlow lens, the whole machine would have fit. The picture shows how the heat and water vapor coming from the engines messes up the air and reduces visibility. According to Flightradar, it was AY1751 from Helsinki to Milan.

Comments: 2 pcs

Pollen corona

8.6.2023 at 22.00 - 22.45 - Nokia (IV)
Aki Karjalainen, Ursa (Länsi-Suomi)

The pine pollen ring looked quite handsome. A couple of days before, it has already been seen, but so faintly that they were left unphotographed. Now you could see comfortably both before and after sunset.

Images: 3 pcs • Comments: 1 pcs

Anomalous rainbow

8.6.2023 at 20.28 - Oulu (I)
Sirkka Karppinen

A double rainbow would walk across the sky during a rainstorm. The cell phone picture is really dim, but it looks like there are two rainbows. The phenomenon is visible for a very short time.

Images: 2 pcs • Comments: 2 pcs

Anticrepuscular rays

7.6.2023 at 22.15 - 22.40 - Helsinki (III)
Pekka Saastamoinen, Ursa (Helsinki)

Last night I went to photograph the sunset and the blue moment. It didn't really go well now, there weren't even any pretty clouds. Then I thought of turning my back to the sun, so that's where the shadow of the earth was visible, and hastily set up the equipment on the Kaivopuisto beach stones. There are also anti-gray rays in the picture. Thanks to Marko Pekkola and Veikko Mäkelä for their help.

Comments: 1 pcs

Negative observation of missing night shining clouds

7.6.2023 at 00.00 - 01.45 - Turku
Mikko Peussa, Ursa (Länsi-Suomi)

The sky was empty. I watched for a couple of hours.

Comments: 1 pcs

Several halo forms

6.6.2023 at 22.18 - 23.10 - Kannonkoski (II)
Maritta Kinnunen

At first I noticed the sun. It looked special behind the clouds. Then I saw the side sun of the setting sun for the first time. Yay! Looked long and beautifully red.

Images: 6 pcs • Comments: 1 pcs

Skywarden is an observation system maintained by Ursa Astronomical Association. Available observation categories consist of different astronomical and atmospheric phenomena. You are welcome to participate even though you are not member of any Finnish astronomical associations. Easiest way to start browsing observation is by selecting observations with images and stories on the left side of the screen. Answers to your questions about the system can be found from FAQ -page.