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

Ursa Astronomical Association

Great halos in the sky on Wednesday and Thursday

20.5. On Wednesday, fine halos were seen mainly in Muurame and Jämsä. From the latter location on the right is an image by Petri Martikainen showing Wegener arc. On Thursday, in southwestern Finland an exceptionally good odd radius displays was visible as shown by Lasse Nurminen's picture. The quality is also indicated by the fact that some observers saw the 35° halo with the naked eye. Normally, this halo is only detected in the images afterwards.

18 and 19 May halos »

Deep sky from southern Europe

17.5. Two observations from southern lands. On the left, an image by Otto Vehviläinen from the area of Antares and Rho Ophiuchi "in completely dark sky" in Madeira. On the right, UGC 9749, or Ursa Minor Dwarf Galaxy, photographed by Tapio Lahtinen with Spanish remote telescope in the Fregenal de la Sierra. "I've photographed some of these Milky Way dwarf galaxies, and now in the spring I saw a picture of this rather challenging galaxy online," Lahtinen explains the background for his photo.

Deep Sky category in May »

Lightning in Nurmes started the season

16.5. The first lightning strikes in the spring were reported to Skywarden on Sunday, when Eero Karvinen got a few pictures in Nurmes. Coincidentally, 15 May was also the first lightning day last year in Warden. Of course, lightning has been seen much earlier in some years, even in January. These are caught on film much less often, but the lightning that took place on 13 January 2012 in Mikkeli was captured by Aki Taavitsainen's fireball camera.

Recent events in the lower atmosphere

14.5 . The birch pollen corona photographed by Petri Martikainen in Juva on the 13th is the summer's first from this tree. On the same day, Kati Pursiainen noticed a fine mammatus in Helsinki, where also a first-class rainbow was visible. This observation was left by Terhi Hirviniemi, who says the picture was taken by her child. And the day before, Antero Ahola reported the season's first roll cloud to Taivaanvahti at the bird tower in Jyväskylä.

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Newest commented observations

Other special clouds

Other special clouds

22.5.2022 at 13.35 - Rautavaara (III)
Jari Huttunen

Sunday's 'UFOs'.

Comments: 1 pcs

Observation information »

Several halo forms

Several halo forms

22.5.2022 at 05.33 - 19.23 - Turku (II)
Paula Mattila

There were no halos all day, 22r visible without interruption for many hours, the best 22ys + as phase I watched from the pool of the inland swimming pool. In the morning and now in the evening, the side sun also stood out again.

Images: 2 pcs • Comments: 2 pcs

Observation information »

Reflected sunbeams

Reflected sunbeams

21.5.2022 at 20.15 - Puumala (II)
Kati Summanen

Reflected cloud rays, I guess. If, so special, because from this very same point I have already made the very same "rare" observation several times. In the Saimaa archipelago, there is enough water for reflections.

Images: 2 pcs • Comments: 1 pcs

Observation information »

Rare halos

Rare halos

20.5.2022 at 10.45 - 11.00 - Juva (IV)
Petri Martikainen, Ursa (Itä-Suomi)

A dim 23-degree slag observed during field work. There was also a hint of 18-degree stuff, but it didn’t grab the image of the cell phone and remained uncertain. The wind was heading southwest. The situation was over in about a quarter and I didn’t have time to stack.

Comments: 1 pcs

Observation information »

Rare halos

Rare halos

19.5.2022 at 16.03 - 18.25 - Turku (IV)
Paula Mattila

The working day ended at 4 pm and when I got out I glanced at the sky, there was a nice halo arc, it was obviously something other than the basic 22r.

Images: 4 pcs • Comments: 3 pcs

Observation information »

Several bright halo forms

Several bright halo forms

19.5.2022 at 13.00 - Mäntyharju (III)
Markku Siljama, Ursa (Etelä-Suomi)

Short-term and bright halo show.

Images: 2 pcs • Comments: 1 pcs

Observation information »

Sun

Sun

19.5.2022 at 15.20 - Nummenmäki, Turku (V)
Petrus Kurppa, Turun Ursa

Today I just had to get to know the new equipment because of the clouds, but it was a descriptive day today! Calcium K light (393.4 nm) showed a truly massive discharge, estimated to be more than 200,000 kilometers long. Unfortunately, this was already over when I had time to get the hydrogen alpha equipment attached to the telescope.

Comments: 3 pcs

Observation information »

Other special clouds

Other special clouds

19.5.2022 at 11.14 - Raisio (III)
Lasse Nurminen

A tiny hole in the cloud would probably meet the requirements of a hole cloud, came to be boxed while haloing. It gradually shrank into nothingness.

Images: 3 pcs • Comments: 2 pcs

Observation information »

Rare halos

Rare halos

18.5.2022 at 08.00 - 08.05 - Jyväskylä (IV)
Vesa Virtanen

Photographed on a mobile phone yesterday morning at 8.00 in Jyväskylä. The arc of the zenith environment. Is there also an Upper Concave Parry's Arch? How common is it?

Images: 3 pcs • Comments: 1 pcs

Observation information »

Rare halos

Rare halos

19.5.2022 at 14.12 - 14.15 - Raisio (IV)
Mikko Peussa, Ursa (Länsi-Suomi)

A dizzying halo play today and a good pyramid crystal in the air. The first time I saw the 35 ° tire with the naked eye. During the coffee break, I took as many pictures as I could. Figure 1. Stack of 25 images cluttered. Figure 2. Stack of 25 images plated and br-treated. Figure 3. Single box before stack.

Images: 3 pcs • Comments: 2 pcs

Observation information »

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.