Contact information

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.

Aurora rays

22.9.2021 at 03.14 - 03.21 - Helsinki (II)
Pentti Arpalahti

Timing is essential. When the Tampere camera had a nice-looking belt and the window showed greenery after one, I went through three outdoor observation sites in less than an hour and a half - after going through> 40 images in a few images, an uncertain belt that wasn't enough to exceed the reporting threshold. At the end of the toil, a glance at the celestial cameras and out of the window -> For seven minutes, a vibrant belt appeared and beautiful splashes of rays that were clearly visible to the naked eye!

Images: 8 pcs • Comments: 2 pcs

One halo form

20.9.2021 at 14.57 - 15.19 - Helsinki (I)
Pentti Arpalahti

It was dim that 22r, but persevered for a while.

Images: 3 pcs

One halo form

14.9.2021 at 13.30 - Helsinki (I)
Pentti Arpalahti

22r chopped from among the crumbly clouds. No other was found with BR treatment, but the ring is more regular.

Images: 2 pcs

One halo form

7.9.2021 at 12.47 - Helsinki (I)
Pentti Arpalahti

The sky was fittingly hazy -> 22r.

Several halo forms

6.9.2021 at 19.34 - Helsinki (II)
Pentti Arpalahti

At the top side point, the spot and something pillar-like was perhaps most clearly distinguished enough to be checked enough. 22r with little handling was confirmed. In the second image, the pillar area is bent in an arc. There may be clouds in the mess. In the cool-adjusted triangle image, there is a spot between the Sun and the top of the 22r, probably a piece of pillar. The old plane spun over.

Images: 5 pcs

Yksi halomuoto

5.9.2021 at 11.30 - Helsinki (I)
Pentti Arpalahti

Hentoon harsoon muodostui 22r.

Primary rainbow

1.9.2021 at 19.32 - Helsinki (III)
Pentti Arpalahti

The rainbow and a piece of side arch were visible for a couple of minutes.

Images: 2 pcs

Hyvin heikkoja yöpilviä

16.8.2021 at 02.59 - 03.35 - Helsinki (I)
Pentti Arpalahti

Kävin tarkistamassa ennen puoltayötä havaintoikkunan iltahaaran, mutta ei mitään. Kahden jälkeen oli vuorossa aamuhaara: 1. Luode-koillis-havaintopaikka ei mitään. 2. Siirryin Nurmijärventielle, josta on näkymä matalalle pohjoiseen ja koilliseen sekä vähän huonommin itään. Katuvalojen takia piti taiteilla flaren kanssa. Onneksi kriittisellä suunnalla osa liittymän valoista ei ollut toiminnassa remontin takia. Kolmen jälkeen kuviin ilmestyi jotain. Klo 3:20 pitkulainen pilvi ystävällisesti liukui kokonaan siron pikkunäytöksen edestä. Yksi vyö oli niin kirkas, että se loisti hieman pilven läpi, ...

Images: 6 pcs • Comments: 9 pcs

Negative observation of missing night shining clouds

15.8.2021 at 23.03 - 23.22 - Helsinki
Pentti Arpalahti

Nega. The beginning and end of the observation period are the timestamp of the backup images taken in the terrain. There is a visual portion of ten minutes at each end of the episode.

Images: 2 pcs

Negatiivinen yöpilvihavainto

13.8.2021 at 00.30 - 01.45 - Helsinki
Pentti Arpalahti

Pilvetön taivas mutta utuinen. Negademot havaintopaikkojen niistä koloista, joista hankalimmat positiiviset ovat löytyneet pohjois-koillisvälillä. Ei nyt löytynyt mitään paitsi viimeisessä pohjoiskuvassa rajulla editoinnilla jotain mutta ei tarpeeksi. 7100:n kennolla on lisäksi pimeässä päässä raidallista kohinaa, jonka takia editoinnissa esiin nousevat vaakaviirut ovat epävarmoja.

Images: 4 pcs

Selvästi näkyviä yöpilviä

10.8.2021 at 22.47 - 23.24 - Helsinki (III)
Pentti Arpalahti

Häly. Vöitä pohjoisessa selvästi yli viiden asteen. Edit Näytös oli tarjolla reilun puoli tuntia ja sitten esirippu sulkeutui. Laajuutta oli luoteesta koilliseen. Korkeutta kymmenisen astetta.

Images: 7 pcs • Comments: 1 pcs

Yksi halomuoto

8.8.2021 at 15.24 - Helsinki (I)
Pentti Arpalahti

Negatiivinen yöpilvihavainto

7.8.2021 at 02.20 - 02.48 - Helsinki
Pentti Arpalahti

Hyvin huolellisesti otin 21 kuvaa parhailla havaintopaikoilla luoteesta koilliseen 3...5 asteesta ylöspäin. Itään ja länteen näkymä on esteinen. Joitakin alapilviä oli, mutta näkyvyys oli ihan riittävä himmeillekin yökkösille.  Ei raapimalla eikä repimällä yökkösviiruja saanut esiin. Vitoskuvassa ehkä olisi mielikuvituksen avustamana jotain vihjettä. Paremmalla kennolla olisi ollut varmempi tulos. 7100 ei oikein siedä kovin rajua repimistä. 

Images: 5 pcs

Dim night shining clouds

6.8.2021 at 00.13 - 03.39 - Helsinki (II)
Pentti Arpalahti

Just and just got through the light pollution. At an altitude of about 10 degrees between the northwest and the northeast, there were quite a few slender strands. Due to urban lighting, the eyes cannot adapt to seeing such dim objects. When preparing the rapeseed, the 1:50 narrow northern sector was completely dark. The observation window would, of course, still be open for more than two hours. Edit. The observation window is open and you will come again. The terrain observation was 0:13 - 0:30 and after two the latest from the previous night continued in the north. Edit 2. In the northwest, h...

Images: 5 pcs • Comments: 1 pcs

Dim night shining clouds

5.8.2021 at 00.53 - 03.20 - Helsinki (II)
Pentti Arpalahti

There was a negative when approaching one, but at the observation point, where the horizon is at about 3 degrees, a thin belt appeared on the back screen (Fig. 2). Then one had to believe and after twenty minutes the graceful patterns rose higher between north and northeast to a height of about 10 degrees. The brightest area somehow stood out visually, though adjoining a wide variety of lamps. Edit. And the show continues for more than three. Left behind a tree and a house, but would appear to be brighter on the northeast side to a height of 15 degrees. Yes, you have time to get involved in th...

Images: 3 pcs • Comments: 1 pcs

Eye-catching night shining clouds

3.8.2021 at 23.48 - 04.35 - Helsinki (V)
Pentti Arpalahti

Thank you Mikko for the noise. Performance less than ten degrees between north and northeast (terrain observation 23: 48-23: 55). The observation window to the north in the 20-degree sector shows a continuation of the presentation 0:41. Edit. And it just goes on: 1:15 due to the dark background sky and the freshly washed window to be classified as bright. Thanks to the dark sky, it was also possible to calibrate the view of the observation window using synchronous patterns. Window image 0:55. The height of the performance remains at ten degrees, but when it comes to half past two it just brigh...

Images: 8 pcs • Comments: 3 pcs

Bright night shining clouds

1.8.2021 at 23.07 - 01.00 - Helsinki (IV)
Pentti Arpalahti

Stir. The northwest-north, bigger screen would seem to be launching. Edit. And that's how it left. Half past one the sky was very open. The brightness category was confirmed by the belt between the northwest and the north around half past one, but at that point I was already snapping up canola. The show extended from northwest to northeast. Possibly under the influence of the shadow of the earth, the brightest triangle seemed to slide towards the northwest as the northeastern part dimmed. The apex of the triangle extended to 25 degrees. The little specialty was the three-link snippet. By o...

Images: 6 pcs

Clearly visible night shining clouds

29.7.2021 at 23.23 - 02.08 - Helsinki (III)
Pentti Arpalahti

Belts in the north. Edit. There were nocturnal nights and norm clouds in the same area, but based on colors and structure, there is no uncertainty of interpretation. Hopefully the craze for scary white power LED spotlights scorching the retinas would not get worse; the yellowish light of an urban area is a convenient identifier for norm clouds. Capella was at about 20 degrees and something separated from the Big Bear -> the dominant form of the north reached 25 degrees. The whole area was from northwest to narrowly northeast, opaque at both ends. Terrain observation 23:56 - 0:09. Window detect...

Images: 6 pcs

Noctilucent clouds visible between clouds

27.7.2021 at 23.40 - 01.32 - Helsinki (I)
Pentti Arpalahti

In the overexposed image of the Tampere northeast camera, the light streaks stood out as early as 11:30 p.m. A glance out the window and there they had already risen to the north. From a cloud gap about 10 degrees wide saw a representation from northwest to northeast. It seemed that there would have been no nocturnal nocturnals to the east, but bad to say when there were those cover clouds. A very gentle vortex was a special feature. 0:17 one belt was already aiming for the bright category, but were clearly visible at the beginning of the show anyway. It was dimmer in the northwest. At half pa...

Images: 6 pcs

Dim night shining clouds

27.7.2021 at 01.00 - 02.01 - Helsinki (II)
Pentti Arpalahti

There was a white streak on the edge of the Hankasalmi camera, so I had to apply for a low northeast horizon observation site. Between the north and northeast was a dim belt and wave area at one time below eight degrees. In window extension tracking in the north, the very dim area had risen to no more than 20 degrees at two times. The show was documented with a couple of pictures.

Images: 3 pcs

Search result contains observations from time period 1.1.2000 klo 00.00 - 26.9.2021 klo 2.43.