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Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association

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Only observations that have a description and at least one image attached.

Telescopic comet

9.11.2021 at 00.00 - 00.10 - Ulvila (I)
Tomi Kurri, Vesa Puistovaara, Porin Karhunvartijat

The last observation of the November frost night was the comet 67 / P Churyumov-Gerasimenko. This comet, which moves through the constellation of Gemini, is the same one that ESA's Rosette probe visited in 2014. We photographed a comet at the Ulvila observatory in Pori. I managed to grab a total of 8min exposure from the comet with LRGB filters before the clouds arrived.

NGC 6888

8.11.2021 at 00.00 - Nakkila (IV)
Tomi Kurri, Porin Karhunvartijat

My autumn observation project has been the Sickle Nebula in the constellation Joutsenen. There is a lot of opaque hydrogen mist around the site, which is aided by rapid optics. The total exposure time of the image is almost 10 hours. The camera is a ZWO 183MC Pro color camera.

Comments: 4 pcs

IC 1396

3.10.2021 at 01.00 - Ulvila (III)
Vesa Puistovaara, Tomi Kurri, Porin Karhunvartijat

A piece of the most beautiful space ... small, but the most famous and described part of the object itself IC 1396. Forecasts for the weather seemed completely unworthy for most of the week, but as if by order for Saturday night, there was a fairly clear observation time! It must have been true to try to take advantage of. The evening went quite calmly, without thinking about major worries - the coffee was consumed almost in a pan and time passed surprisingly quickly. Observations were made at several sites, both at the observatory and remotely. In the "Picture of the Hour" last night's gi...

NGC 281

27.9.2021 at 00.00 - Nakkila (IV)
Tomi Kurri, Porin Karhunvartijat

NGC 281, or Pacman Nebula, located in the constellation of Cassiopeia, is an emission nebula and consists mainly of hydrogen. At a distance, the fog is about 9,200 light-years away from us. I photographed the subject on several autumn evenings and the data was collected in both RGB and narrowband. The total exposure time of the image is 5.5 hours.

Comments: 2 pcs


15.9.2021 at 00.00 - 05.00 - Nakkila (IV)
Tomi Kurri, Porin Karhunvartijat

During the dark nights of autumn, there was an opportunity to photograph the classic object of the night sky, the M33 of the Triangle Galaxy. This spiral galaxy, 2.7 million light-years away, is part of our galactic neighborhood.


30.8.2021 at 00.00 - 03.00 - Nakkila (V)
Tomi Kurri, Porin Karhunvartijat

The weekend was surprisingly clear for a couple of nights and I got to test a new telescope on this distant galaxy, also known as M31. The distance to Andromeda is 2.5 million light-years. The figure also shows the companion galaxies M32 and M110.


26.7.2021 at 01.45 - Ulvila (V)
Tomi Kurri, Porin Karhunvartijat

Saturn, the pearl of the night sky. The planet is visible in the southern sky as early as July. The very calm seeing made it possible to describe the details despite the low height of the planet.


25.7.2021 at 03.50 - Nakkila (IV)
Tomi Kurri, Porin Karhunvartijat

Summer night Jupiter with moon. Used, the busy Meade got into the first true test, a surprisingly good planetary tube. Photographed with 2x Barlow without follow-up. Moons on the left including Europa, Ganymedes and Io.

Comments: 3 pcs


18.7.2021 at 02.40 - Ulvila (IV)
Tomi Kurri, Porin Karhunvartijat

The start of the season in terms of planetary photography! I drove to the Pori Bear Guard's observatory in Ulvila to photograph the planets of the summer night. Jupiter and Saturn were nicely in the holls and the setting moon brought atmosphere to the evening. The red dot of Jupiter and the shadow of Ganymede on the surface of the planet were well visible, though the seeing was not strange.

Images: 3 pcs


12.6.2021 at 11.43 - Mikkeli, Launiainen (IV)
Petrus Kurppa, Tomi Kurri

During the summer holiday provincial trip in Mikkeli, there was an opportunity to try the DayStar Solar Scout SS60-DS telescope. In the light of the online writings, I didn’t think too much about the performance of a small hydrogen alpine tube at first, but with the first light, the mind changed. Visually, the celebrities and filaments came out nicely. The MacGyver-inspired shooting tuning gave a little foretaste of what can be accomplished with the tube. Today the wind and clouds took the victory from a longer exploration.

Images: 2 pcs • Comments: 2 pcs

IC 1396

11.4.2021 at 02.00 - 03.00 - Kangasala (IV)
Tomi Kurri, Porin Karhunvartijat

A bright April night on the edge of the Milky Way. As the dark nights drew to a close, I decided to photograph the area of Cepheus, with a particular focus on IC 1396, or Elephant Fly Nebula. Next to IC 1393 is Sh2-129 "Flying Bat Nebula". The picture also shows several dark mists. This is my first constellation with a modified full-cell camera. The total exposure time of the image is 54 min.

Mare Crisium

16.2.2021 at 18.34 - Tampere (IV)
Tomi Kurri, Porin Karhunvartijat

I finally got to test my new ZWO 224MC camera. This time the subject was Mare Crisium, the Sea of Dangers.

One halo form

29.1.2021 at 00.18 - Ulvila (I)
Tomi Kurri, Porin Karhunvartijat

A picture of the lunar halo ring captured by the Bear Camera at Ulvila Observatory. We recently installed an ultra-wide-angle lens on the camera. This greatly facilitates observations. More pictures and videos:

Comments: 3 pcs

Landscape image of a planet

17.12.2020 at 08.24 - Tampere (IV)
Tomi Kurri, Porin Karhunvartijat

Venus was nicely visible at dusk after the cloud wall broke for a moment.


8.12.2020 at 22.04 - Tampere (IV)
Tomi Kurri, Porin Karhunvartijat

The receding Mars, which still showed a surprising amount of detail.

Jupiter ja Saturnus

8.12.2020 at 16.44 - Tampere (IV)
Tomi Kurri, Porin Karhunvartijat

The conjunction of Jupiter and Saturn. The planets appear beautifully at dusk.

Binocular comet ATLAS

22.11.2020 at 03.00 - Kokemäki (III)
Tomi Kurri, Porin Karhunvartijat

The second night of the Bear Guards Acturus 2020 observation trip, in addition to the northern lights, also provided an opportunity to photograph the ATLAS comet in the constellation of Orion. The comet has already moved above Orion's head. The red hydrogen mist is SH2-264 or "Lambda Orionis Ring". Due to random clouds, I only got a shutter speed of 13 minutes this time, but that was enough.

Comments: 2 pcs

Caldwell 49

21.11.2020 at 03.00 - 04.00 - Kokemäki (IV)
Tomi Kurri, Porin Karhunvartijat

I photographed the Rosette Nebula area at the Bear Watchers Arcturus 2020 Autumn Event. The Rosette itself appears in the upper right of the image, on the left the Christmas Tree Cluster and the Conical Nebula. Together with Jari Kuula and Juha Ojanperä, we noticed that by zooming in on the image, you can also see Hubble's changing fog (NGC 2261) near Kartiosumu. Fast camera optics showed their nails again. Also in this image, the shutter speed is only 51 minutes. Overall, the Bear Guard observation trip was like winning the lottery, as I shot three different subjects for a total of 8.5 ho...


21.11.2020 at 00.23 - 03.31 - Kokemäki
Tomi Kurri, Porin Karhunvartijat

Orion's belt and sword photographed at the Bear Guards' Arcturus 2020 event in Kokemäki. This time the weather favored and I filmed all night. The lower left corner shows the Horsehead Nebula and the center right of the image shows Orion's large gas mist and "Running Man Nebula". For this picture, I collected less than a couple of hours of exposure.


16.10.2020 at 21.44 - 01.47 - Tampere (IV)
Tomi Kurri, Porin Karhunvartijat

A bright Friday night around the Martian opposition, a rare treat. I photographed the planet from the balcony observatory for a total of 4 hours, with an 8-inch Celestron as a telescope. The animation consists of 15 images, each stacked from a separate video and processed with Registax. The variation of seeing during the evening is well visible in the video. As Mars revolves, the grand canyon Valles Marineris turns hidden and the largest volcano in the solar system, Olympus Mons, appears. In the animation, the air directions are in the right direction. Once upon a time, the spectacular sightin...

Images: 2 pcs • Comments: 4 pcs

Search result contains observations from time period 1.1.2000 klo 00.00 - 6.12.2021 klo 6.37.