Contact information

Skywarden,
Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki
taivaanvahti(at)ursa.fi

Ursa Astronomical Association

3 observations and 0 comments in queue.

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

Starscape image

2.9.2016 at 23.25 - Porkkalanniemi (IV)
Janne Sievinen, Ursa (Helsinki)

Milky way atmosphere in Porkkalanniemi. The image is a panorama of four horizontal shots extending from the horizon through the zenith to the Cassiopeia area. There were so many challenges in seaming the white balances between the images and the vignetting effects created by the 17mm lens that I decided to monochromatize the sky with popularity, just to create a more cohesive impressionistic mood. The foreground was painted slightly with a flashlight during the exposure to bring out the rock landscape.

Active aurora band

27.8.2015 at 00.40 - 01.40 - Espoo, Nuuksio (III)
Janne Sievinen, Ursa (Helsinki)

The calm northern lights belt at the beginning of the night was activated from about 00.45, when for a while the northern lights could even be described as bright. The most active phase with belts and rays lasted about a quarter, after which the play calmed down. Shooting times: 0.54 0.53 0.50 0.49 and 01.36. The last image was also hit by a satellite flash in the northeast. Image histograms and color balance are adjusted with Lightroom.

Images: 5 pcs • Comments: 5 pcs

Iridium 90

20.8.2015 at 00.09 - Espoo, Nuuksio (III)
Janne Sievinen, Ursa (Helsinki)

There were plenty of flashes of Iridium on offer, in the picture Iridium 90, captured from above the trees in Nuuksio, with a brightness of about -5.4 according to the tables.

Perseids

18.8.2015 at 00.12 - Espoo & Vantaa (IV)
Janne Sievinen, Pentti Arpalahti, Ursa (Helsinki)

In the autumn of 2015, during the Perseidi swarm, we accidentally shot the same meteor with Pentti Arpalahti at a distance of about 12 kilometers from each other in Paloheinä, Vantaa, and Röylä, Espoo. Looking at the images, attention was drawn to the clearly observable parallax, which provided an opportunity to try to reconstruct the orbit of the meteor. The azimuth of the observed ignition and extinction points of the meteor and the determination of the altitude coordinates for each observation site were straightforward using star map software because the observation time and the coordinates...

Images: 2 pcs • Comments: 5 pcs

A fireball at night, brigter than the venus

14.12.2015 at 21.43 - Espoo (III)
Janne Sievinen, Ursa (Helsinki)

In connection with the shooting of the northern lights, a fireball also hit the screen. I used to make a visual observation only in the blink of an eye with the side eye. Attached is a full illuminated frame and a partial magnification showing the trajectory of the fireball partly behind the clouds on the horizon. Youtube also has a timelapse https://youtu.be/AGlaADdyASY where the car box is paused.

Images: 2 pcs • Comments: 3 pcs

Quiet aurora arc

12.10.2017 at 00.53 - Espoo (II)
Janne Sievinen, Ursa (Helsinki)

The first northern lights of the season, for my part, were photographed in Solvalla, Espoo. The shooting started at around 11:17 pm, when the slightly more active period seemed to be coming to an end, and at 00:53, at the beginning of a more active session, the camera battery was running low. The balance 330 shots with 15-second exposures, a video of which is attached. For the first time, a battery-operated lens heater was also included, without which shooting would have stopped after just a few pictures, as the air cooled to +2 C and the relative humidity was exactly 100%. However, the fogs r...

Images: 5 pcs

Total lunar eclipse

28.7.2018 at 00.27 - Espoo (IV)
Janne Sievinen, Ursa (Helsinki)

The transition phase of a complete lunar eclipse, where the main shadow is already moving past the left edge of the moon. This was, in my opinion, almost the finest stage of the whole eclipse, when looking with my eyes a handsome "diamond ring" effect was created, the image of which created the image quite flat.

Negative observation of missing night shining clouds

10.8.2015 at 23.15 - 00.50 - Espoo
Janne Sievinen

During the short observation tour of the Persians, the night clouds were also kept in mind - the northern skyline was beautiful, but the night clouds were still a negative observation. In a couple of hours, 7 persecutes or other stellar flights were observed, three of which left a glowing old one behind. Admittedly, none of them hit the limited angle of view of the universal lens. The photo was taken on 11/08/2015 at 00.07 north.

Clearly visible night shining clouds

14.7.2016 at 02.07 - Espoo (III)
Janne Sievinen, Ursa (Helsinki)

Beautiful night clouds lingered in the northern sky for another hour. The brightness seemed to vary somewhat, though perhaps quite a contrast to the clouds flying from time to time. The photo was taken in the Suurpello area of Espoo over Ring Road II.

Comments: 1 pcs

Bright night shining clouds

1.8.2016 at 01.00 - 02.45 - Espoo (IV)
Janne Sievinen, Ursa (Helsinki)

Fine night clouds lingered for a couple of hours north of the sun reddening the horizon. Photo taken in Nuuksio on the top of Solvalla's Swinghill ski slope. During the night, more than a hundred photos were taken with the aim of making a time series film - but even if a finger accidentally swept the focus sadly wrong at the beginning of the series ... The initial exposure experiment produced a sharp image, and the clouds were beautiful to watch live!

Bright night shining clouds

7.8.2016 at 22.45 - 00.10 - Espoo (IV)
Janne Sievinen, Ursa (Helsinki)

Bright night clouds and gauze from Suurpello, Espoo, photographed over Ring Road II. Pictured is about a third of the entire play at 11:22 p.m. The brightness compared nicely to the street lighting in the area.

Clearly visible night shining clouds

8.7.2018 at 00.28 - Espoo (III)
Janne Sievinen, Ursa (Helsinki)

Moderately clear night clouds, which I watched between about 00:15 and 01:10 in the port of Haukilahti in Espoo. In the attached image taken at 00:28, the histogram is (calmly) adjusted so that the fine structure of the clouds is slightly more noticeable than visually.

Comments: 2 pcs

Bright night shining clouds

10.7.2020 at 00.30 - 02.00 - Espoo (IV)
Janne Sievinen, Ursa (Helsinki)

A great and wide-ranging night cloud play, which was a pleasure to watch above the port of Haukilahti in Espoo! There were plenty of different shapes on display and it would have been nice to get their shots shot with a slightly wider focal length lens, even a movie clip - maybe next time! The horizontal image was taken at 01:18 and the vertical image at 00:47 heading northwest. Both images are lightly processed with Adobe Lightroom software to increase contrast.

Images: 2 pcs

Clearly visible night shining clouds

30.6.2021 at 01.03 - 01.55 - Espoo (III)
Janne Sievinen, Ursa (Helsinki)

Well-lit illuminated night clouds to the north and east, photographed in Espoo along the Länsiväylä. Timing of images 1.45 (main image) 1.03, 1.18, 1.38 and 1.55.

Images: 5 pcs • Comments: 2 pcs

Starscape image

2.12.2015 at 21.15 - Espoo (III)
Janne Sievinen, Ursa (Helsinki)

The rise of Orion over Lauttasaari. The Castor and Pollux of the Twins are also included at the top right of the picture. Image processing with Lightroom, histograms and especially white balance to transfer yellowish sodium light to a bluish tint with slightly artistic freedoms.

Comments: 1 pcs

M42

10.12.2015 at 02.21 - Espoo (III)
Janne Sievinen, Ursa (Helsinki)

Orion's M42 and M43 in Espoo from the balcony photographed through light pollution. SLR directly on the TAL-200K's focal plane, with only a few short exposures of less than 10 seconds due to lack of pole orientation. Stacking without image calibrations in Photoshop and histograms in Lightroom.

Starscape image

28.12.2015 at 23.55 - Espoo (III)
Janne Sievinen, Ursa (Helsinki)

Orion in the winter clouds. Sirius also flashes on the low right. Histograms and white balance adjusted with Lightroom.

Starscape image

31.10.2017 at 21.18 - Espoo (III)
Janne Sievinen, Ursa (Helsinki)

Starry evening on a late autumn beach. The constellations of Ajomiehi and Taurus shine with the lights of Helsinki and Espoo in the eastern sky. The bright moonlight creates shadows on the beach landscape, which is colored from the opposite direction by the warmer tones of the houses and the narrow light wedges of the street lamp. The foreground brightness of the image has been increased in post-processing.

At least 10 lightning strikes seen

9.8.2013 at 01.28 - 01.32 - Espoo (V)
Janne Sievinen, Ursa (Helsinki)

Great lightning seen from Westend!

Images: 4 pcs • Comments: 2 pcs

Lightning photo

6.8.2015 at 04.44 - Espoo (V)
Janne Sievinen

Lightning seen from Westend in the direction of Miessaarenselä.

Comments: 1 pcs

Search result contains observations from time period 1.1.2000 klo 00.00 - 25.9.2021 klo 10.22.