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

Ursa Astronomical Association

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

Pollen corona

27.5.2023 at 14.00 - 18.00 - Mäntyharju (III)
Markku Siljama, Ursa (Etelä-Suomi)

A bright sp ring is acceptable. The ring shows brightenings, i.e. pine pollen is included. Weather partly cloudy, +14 degrees, 3-6 m/s, 40 percent.

Images: 2 pcs

Several halo forms

21.5.2023 at 10.00 - 18.00 - Mäntyharju (II)
Markku Siljama, Ursa (Etelä-Suomi)

All day it was 22r, which was joined later by a weak 22ys. Weather +21 degrees, weak northwest wind Today's sounding data showed that the zero temperature limit was at about 3 km, so the halo crystals were above it, somewhere..

Images: 2 pcs • Comments: 1 pcs

Pollen corona

14.5.2023 at 13.30 - Mäntyharju (IV)
Markku Siljama, Ursa (Etelä-Suomi)

After a small thunderstorm cloud passed, a bright sp ring appeared. Filming location in a dense forest and a wide birch grove on the windward side. The first 3-fold ring.

Pollen corona

13.5.2023 at 15.00 - Mäntyharju (III)
Markku Siljama, Ursa (Etelä-Suomi)

A bright sp ring in the sky all day. Even though the wind is weak, you can see it surprisingly clearly. Weather +22 degrees, 3-5 m/s, 27 percent.

Several halo forms

11.5.2023 at 06.30 - 14.00 - Mikkeli (II)
Markku Siljama, Ursa (Etelä-Suomi)

When I went to work in the morning, I could see the bright side sun, picture 1. During the lunch break I could already see more, 22r, 22ys, saur and hr. The weather is cloudy, +17 degrees, 4-8 m/s, humidity 28 percent. There is no hope for sp-frames when there was a thin layer of clouds in the sky. Long meandering streamers of the spray could be seen in the sky.

Images: 4 pcs

Pollen corona

10.5.2023 at 11.00 - Mikkeli (IV)
Markku Siljama, Ursa (Etelä-Suomi)

A clear sp ring in the sky of Rantakylä. +16 degrees, wind 4-8 m/s, humidity 33 pros, weather information 960 m from Mikkeli airport.

Comments: 1 pcs

One halo form

9.5.2023 at 11.00 - 15.00 - Mäntyharju (I)
Markku Siljama, Ursa (Etelä-Suomi)

At times clear 22r. In picture 2, the traces of the spray in the halo Picture 3 sometimes you had to look at your feet so you don't walk where it hurts..:) +15 degrees, wind 4-7 m/s, humidity 30 percent

Images: 3 pcs

Pollen corona

8.5.2023 at 13.00 - 16.00 - Mäntyharju (IV)
Markku Siljama, Ursa (Etelä-Suomi)

A ring of pollen visible in the sky all day, with a birch. Pictures 2-4 are test pictures against a 110kV power line, nothing special. +14 degrees, wind 3-6 m/s, humidity 26 percent.

Images: 4 pcs

Several halo forms

7.5.2023 at 18.00 - 20.00 - Mäntyharju (II)
Markku Siljama, Ursa (Etelä-Suomi)

It's hard to say hello spring. Now only dim 22r and sauris.

Images: 3 pcs

Pollen corona

7.5.2023 at 13.00 - Mäntyharju (II)
Markku Siljama, Ursa (Etelä-Suomi)

Warm and windy and clear air and sp ring. Not particularly bright but visible with the naked eye.

Images: 2 pcs

Primary rainbow

29.4.2023 at 15.00 - Mäntyharju (III)
Markku Siljama, Ursa (Etelä-Suomi)

During the boat launch trip, a small rain cloud passed over and conjured up the opposite shore of the rainbow. The opposite shore 500 m away. The sun's height was 37 degrees, so the rainbow remained very low.

Images: 2 pcs • Comments: 1 pcs

Aurora rays

21.4.2023 at 23.30 - 01.15 - Mäntyharju (III)
Markku Siljama, Ursa (Etelä-Suomi)

At first a calm arc which later turned into a radiant active play. The reddish part of the upper part could be seen deep red even with the naked eye..! The last two control images to the east and west, no special features were visible. The weather is warm, a couple of hours outside and the keys don't freeze.

Images: 7 pcs

One halo form

13.4.2023 at 12.00 - 18.00 - Mikkeli (I)
Markku Siljama, Ursa (Etelä-Suomi)

I got an alert from Juva about the halo, but I didn't get to photograph it until 12 o'clock during my lunch break. Dim 22r which was visible until the evening.

One halo form

11.4.2023 at 10.00 - 17.00 - Mäntyharju (I)
Markku Siljama, Ursa (Etelä-Suomi)

All-day 22r halo. At 14:51-14:53 a shower flew through the halo, but it did not cause any changes to the halo. The halo crystal cloud seems to have been much higher than the shower. +12 degrees, calm, summer tires under..

Images: 4 pcs

Rocket-related clouds

29.3.2023 at 22.59 - 23.06 - Mäntyharju (IV)
Markku Siljama, Ursa (Etelä-Suomi)

The Russian spy satellite left Plesetsk. At first nothing was visible until a bright cloud of exhaust gas lit up about 10 degrees north. It slowly traveled towards the northern horizon where it disappeared. It was clearly visible and rose surprisingly high. 1.rises on the northeastern horizon in 2259 8. a bluish cloud of exhaust gas was left in the sky and moved to the west. The weather is clear, calm, -10 degrees, the moon is high in the south. #raketti: Soyuz 2.1y #satelliitti: Kosmos 2568

Images: 8 pcs

Several halo forms

17.3.2023 at 09.00 - 15.00 - Joutsa (II)
Markku Siljama, Ursa (Etelä-Suomi)

All day outside work and at the same time we followed the development of the halos. In the morning 22r and later 22r was joined by 22ys and a very dim horizon ring. The weather in the morning was -10 degrees and very warm during the day, the eaves were dripping and gloves were no longer needed for outdoor work. A lone swan was seen.

Images: 3 pcs

One halo form

13.3.2023 at 15.00 - Mäntyharju (I)
Markku Siljama, Ursa (Etelä-Suomi)

Weak 22r. At the same time, rare halos were visible in Juva, but from my own observation, none were found, except for 9r, which may or may not be visible.. The picture was a little blurry in a hurry.

Images: 2 pcs

Light pillars

12.3.2023 at 19.40 - 20.15 - Mäntyharju (II)
Markku Siljama, Ursa (Etelä-Suomi)

The rocket launch of Kiiruna was not visible, but a few artificial light pillars were visible. The pillars were created 6 km away from the street lights at the intersection of Valtatie-5 and Toivolantie. The weather is -7 degrees and calm.

Images: 2 pcs

Quiet aurora arc

10.3.2023 at 20.15 - 21.15 - Mäntyharju (II)
Markku Siljama, Ursa (Etelä-Suomi)

A calm aurora arc in the north. A few weak rays that moved to the west. Nothing special outside the oval. 1. west, red color upper part of some ray 4.rays 5. The lights of Mäntyharju 5 km away photographed with aurora settings, light pollution that can't be helped. Weather -5 degrees, calm, photographed from the ice of Pyhävesi.

Images: 5 pcs

One halo form

7.3.2023 at 22.30 - Mäntyharju (I)
Markku Siljama, Ursa (Etelä-Suomi)

Dim 22r around the Moon. Weather -18 degrees, calm.

Search result contains observations from time period 1.1.2000 klo 00.00 - 2.6.2023 klo 15.27.