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

Ursa Astronomical Association

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Aurora rays

19.9.2023 at 22.21 - 22.23 - Turku (III)
Mikko Peussa, Ursa (Länsi-Suomi)

One of the most special northern lights tours I've experienced. Just before these pictures, I was under the clouds in the rain on the outskirts of Turku and I was sitting in the car. A strong wind then blew the clouds away and the live show began almost immediately. The observation period is only 2 minutes, during which I took all these pictures. That highest beam rose really fast up to the zenith, where the Corona was also visible for a while. Such a two-minute session right after the rain is quite a coincidence and pure luck.

Images: 5 pcs

Half-sky auroras

18.9.2023 at 21.50 - 23.30 - Turku (IV)
Mikko Peussa, Ursa (Länsi-Suomi)

I photographed the northern lights in Rusko and Turku. At the same time, my old camera filmed a series by itself on the balcony at home. I put together such a quick (approx. 6 seconds) gif animation from those pictures from 23:00 to 23:30 at the end.

Images: 8 pcs • Comments: 3 pcs

Rare halos

18.9.2023 at 13.18 - 13.23 - Turku (IV)
Mikko Peussa, Ursa (Länsi-Suomi)

The halos of the day in a stack of 49 pictures USMattuna and BR processed. A triangle is a single square from the bottom of the stack. I also suspected Lowitz on the right side, but I leave it unmarked now as I'm too uncertain.

Images: 3 pcs

Auroras seen through breaks in the clouds

17.9.2023 at 01.30 - 01.40 - Rusko (III)
Mikko Peussa, Ursa (Länsi-Suomi)

Waiting didn't help. The clouds just hung in front from one hour to the next, but the statistical repos are now recovered.

Images: 3 pcs • Comments: 1 pcs

Quiet aurora arc

14.9.2023 at 23.05 - 00.15 - Turku (II)
Mikko Peussa, Ursa (Länsi-Suomi)

In the Turku region, the sky opened a little late, but the wide aurora borealis was still visible when the cloud cover receded. I photographed Turku first from my balcony and then from the fields of neighboring Rusko.

Images: 5 pcs

Several halo forms

14.9.2023 at 16.05 - 16.55 - Turku (II)
Mikko Peussa, Ursa (Länsi-Suomi)

Afternoon halos. Another 46° tire was found in the small pile.

Images: 3 pcs • Comments: 1 pcs

Volcanic/ash sunset

13.9.2023 at 19.50 - Nousiainen (IV)
Mikko Peussa, Ursa (Länsi-Suomi)

A peculiarly reddish sunset, apparently due to the dust of the Sahara. The sky glowed for five minutes in colors whose levels were seen sometime in the early 90s after the eruption of the Pinatubo volcano. Now let's emphasize that the colors of the picture have not been processed in any way, but the picture is straight from the camera. Only the sharpness has been slightly increased.

One halo form

13.9.2023 at 17.30 - Turku (I)
Mikko Peussa, Ursa (Länsi-Suomi)

Afternoon hello to statistics.

One halo form

10.9.2023 at 13.40 - 13.45 - Turku (I)
Mikko Peussa, Ursa (Länsi-Suomi)

Even a small stack of 55 pictures did not add value to the observation. The dull 22° tire became somewhat clearer. The second picture is a single square from the middle of the stack.

Images: 2 pcs

Rare halos

8.9.2023 at 12.18 - 12.24 - Turku (IV)
Mikko Peussa, Ursa (Länsi-Suomi)

The morning halos in a stack of 78 pictures, where I found that upper concave Parry, 46° underside arch and 46° ring. The other shapes were also distinguishable by the eyes. The upper dim 46° arc must be a ring because the Sun is above 32° altitude. Figure 1. Stack of 78 images + USM. Figure 2. Stack of 78 images + lighter USM and BR. Figure 3. Single square from the bottom of the stack.

Images: 3 pcs

Several halo forms

7.9.2023 at 18.50 - 19.10 - Turku (II)
Mikko Peussa, Ursa (Länsi-Suomi)

Evening halos.

Images: 2 pcs

Aurora rays

5.9.2023 at 22.55 - 23.05 - Rusko (II)
Mikko Peussa, Ursa (Länsi-Suomi)

The show was weak, but let's count these dim aurora borealis now. I don't mark the colors when I can't even see the whole aurora with my eyes like this.

Images: 4 pcs

Reflected sunbeams

5.9.2023 at 19.30 - 19.36 - Turku (III)
Mikko Peussa, Ursa (Länsi-Suomi)

The reflected cloud rays were visible for a long time. However, the series filming for the gif animation was too short, because I didn't make it to the shooting location in time.

Images: 2 pcs

Tertiary rainbow

2.9.2023 at 18.03 - Turku (I)
Mikko Peussa, Ursa (Länsi-Suomi)

Good rain in the direction of the Sun and to the left conditions for the third rainbow. 7 pictures quickly in the stack, a little USMaus and BR processing on top, so a clip of the third became dimly visible.

Images: 3 pcs • Comments: 2 pcs

Several halo forms

25.8.2023 at 12.44 - 12.46 - Turku (II)
Mikko Peussa, Ursa (Länsi-Suomi)

I only managed to take ten pictures, but even with them I was able to test the new desktop computer and the newer version of Gimp for USMaus and BR processing. The triple and quadruple images are single frames. A dull 46° tire with BR treatment was found in Nelos. With the help of this small stack, the Horizon Ring and Sauri became better visible in the first and second picture.

Images: 4 pcs

Primary rainbow

24.8.2023 at 15.30 - 15.35 - Turku (III)
Mikko Peussa, Ursa (Länsi-Suomi)

A low rainbow after a small thunderstorm.

Images: 2 pcs

Image of an exceptional thunder cloud

24.8.2023 at 14.00 - 15.20 - Turku (III)
Mikko Peussa, Ursa (Länsi-Suomi)

I saw a couple of flashes from this cloud and heard a distant rumble, but this thunderstorm was quite quiet.

Images: 3 pcs

Primary rainbow

22.8.2023 at 16.42 - 19.56 - Rusko (III)
Mikko Peussa, Ursa (Länsi-Suomi)

In the course of a few hours, rainbows were seen several times. The sun was shining through small gaps in the clouds, so I didn't have time to photograph these for a long time.

Images: 2 pcs

Other storm phenomenon

20.8.2023 at 00.45 - 02.15 - Turku (III)
Mikko Peussa, Ursa (Länsi-Suomi)

Several dozens of kalevantuli from the southern parts of Estonia. At first they were only visible in photos, but when the night got darker, there was quite a flash near the horizon, just by looking at it. Distance to lightning is estimated at 250 - 350 km.

Comments: 3 pcs

Primary rainbow

18.8.2023 at 21.14 - Nousiainen (III)
Mikko Peussa, Ursa (Länsi-Suomi)

A short clip of a rainbow before sunset.

Search result contains observations from time period 1.1.2000 klo 00.00 - 21.9.2023 klo 12.36.