Contact information

Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association

0 observations and 0 comments in queue.

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

Yaogan-16 A, C

1.10.2015 at 04.33 - Kaarina, Littoinen
Jukka Heikkilä

The camera had been left to shoot in the wake of the lunar eclipse. Airplanes without lights (pair) or fireballs - these I guessed to suspect?

Comments: 3 pcs

Yaogan 9A, 9B ja 9C

10.4.2015 at 02.33 - Espoo
Panu Lahtinen, Ursa (Etelä-Suomi)

Probably the first Yaogan trio left in their own celestial cameras. 9A flashed first (bottom in the top row), then 9B (bottom) and last 9C (top, on the same line as 9A).

Yaogan 9A, 9B ja 9C

10.4.2015 at 23.45 - Kolari (III)
Juha Kuitunen

I was filming repos in Ylläs and I didn’t actually notice those three traces until I looked at the pictures afterwards. The wiser ones clarified that this is the Chinese satellite trio Yaogan 9A, 9B and 9C.

Comments: 1 pcs

Yaogan 6

12.9.2014 at 23.04 - 23.06 - Hamina (III)
Matias Takala

This season, there have indeed been several pearl-like flickers on the sky camera generated by the Chinese satellite Yaogan 6. One I even went to watch visually.


19.9.2014 at 22.35 - 22.36 - Raseborg (IV)
Kim Stude

Here, too, identification assistance would be needed, although a potential target may already have been found, such as the Terra satellite. I was practicing star photography with the d7000 camera and in eco focusing the pictures were drawn by this flashing satellite, really great looking. The light phenomenon was also silent and there was no banging or hissing. I already compared the image with the stellarium and found that, Terra traveled five minutes earlier in almost the same place with only about a 4 degree throw apart, but I am amazed at this "time" throw, do those satellite predictions a...

Images: 3 pcs • Comments: 4 pcs

Yaogan 31A, B, C

19.8.2018 at 23.16 - Turku
Lasse Nurminen

The intention was to describe the overflight of a few brighter satellites, but did not naze them. While browsing the image harvest at home, such flickers were found in a few consecutive screens just in the top corner. At least I didn’t find a suitable candidate for them in HA or Stellarium. Yaogan-like cluster, three in that I think flickers.

Images: 2 pcs • Comments: 2 pcs

Yaogan 25

24.10.2015 at 20.48 - Vantaa (III)
Leo Wikholm, Ursa (Helsinki)

As I photographed the sky, this time the satellite trio Yaogan 25 A, B, C hit the field of view. They fluttered across the constellation of Cassiopeia, rather faintly visible to the naked eye.

Comments: 1 pcs

Yaogan 20A, 20B, 20C

11.4.2015 at 02.36 - Kemiönsaari (II)
Mikko Peussa, Ursa (Länsi-Suomi)

Some satellite trio drew on the cell while hunting for fireballs. Is there a Yaoga family? The first picture is a crop of the second picture.

Images: 2 pcs • Comments: 1 pcs

Yaogan 20A, 20B, 20C

26.3.2015 at 01.02 - Kolari (II)
Tero Sipinen

I was at the edge of the swamp watching the northern lights and a little sideways the camera clicked the set for the timelapse. I turned my gaze about southwest and looked as if two stars were moving in a row in the same direction. I got to think that they did seem to be moving erroneously before I realized that they were indeed moving. At the same time, I noticed a third, dimmer "star" moving at the same pace, a little off the line of the two brighter ones. They thus formed a narrow triangle. At least one of them made even a small glimmer before the trio faded into the invisible. I remembered...

Comments: 3 pcs

Yaogan 20A ja 20B

31.8.2016 at 01.57 - Hankasalmi, Murtoinen (IV)
Arto Oksanen, Jyväskylän Sirius

Two bright satellite flashes close to each other. I did not find a match in HeavensAbove. The NOSS satellites were heading in the same direction, but not exactly there. EDIT: Identified as a Chinese satellite pair Yaogan 20A and 20B

Images: 2 pcs • Comments: 1 pcs

Yaogan 17

4.10.2014 at 22.12 - Mikkeli
Jukka Paavilainen

This preoccupies itself as to when 3 clear lines in the 15sec exposure appear, going in different directions. Andromeda in the background. Photoshoped a bit, otherwise orc. The picture was taken in Mikkeli on October 4, 2014 at 10:12 pm correct the observation data, not having certainty as to which or in which direction these have gone. Visual observation was not received, the image only became clear. A few starbursts were then visible even visually.

Comments: 6 pcs

Yaogan 16A, 16B, 16C

6.10.2015 at 21.50 - Kempele (III)
Jarmo Leskinen, Ursa (Pohjois-Suomi)

When photographing the northern lights, the images were also captured by the Yaoga satellite triple, apparently those 16A, 16B, and 16C satellites.

Comments: 1 pcs

Yaogan 16

13.8.2014 at 00.26 - Turku (V)
Juha Ojanperä, Porin Karhunvartijat

As I tried to spot the asses, I accidentally spotted a bright satellite trio in the direction of the constellation Kotka. At first, the three outermost satellites of the trio brightened and then dimmed. After this, the third satellite brightened and then dimmed. The brightness of the satellites was perhaps in the Vega class at best. With Heavensat, I look for a possible explanation for my observation. I doubt the NOSS satellite because they are known to be triplets. However, the orbit of none of the NOSS satellites matched what I observed. I also tried to update the satellite databases, but ev...

Images: 2 pcs • Comments: 8 pcs

Yaogan 16

21.8.2014 at 22.37 - Vantaa (II)
Leo Wikholm, Ursa (Helsinki)

The Yaogan 16 satellite triangle (2012-066A, B, C) was recorded on the camera cell anyway. At first, the sky was cloudless and star-clear, but when it came to looking for the Yaogan 16 triangle, the clouds became annoying just at that minute. In the picture, the brightness of the triangle is probably +5 ... + 6 magnitudes, but sometimes these three satellites may shine even as the brightest object in the sky. I have to continue the exercises and grab an even better picture :-)

Comments: 1 pcs

Yaogan 16

13.8.2014 at 00.26 - 00.27 - Tampere (IV)
Tapio Lahtinen, Tampereen Ursa

This strange brightening of the three pieces was left in the wounds of the meteor camera. Also a dimmer meteor stripe in the picture. Combined pair of images. Original and video here .

Comments: 2 pcs

Yaogan 16

15.8.2014 at 00.37 - Ilmajoki (IV)
Mauri Korpi, Lakeuden Ursa

There were no meteors in the images, but even more satellites. The image is a stack of 9 images from 00.36.59-00.38.48. Flashing satellite up and left in the middle of the image area. the bottom corner of the satellite triangle is also up. Two of the triplets brightened to be very bright, but the third remained very dim here (slightly to the left of the bright). There seem to be a couple of other satellites in that corner. Would that trio be Yaogan 16, when here would look very similar. So visually I didn’t see this as the camera was shooting ...

Images: 2 pcs

Yaogan 16

17.3.2015 at 20.10 - Jyväskylä (III)
Jesse Kyytinen, Ursa (Länsi-Suomi)

Which satellite trio here to go cool? Thanks for the maintenance identification!

Comments: 2 pcs


28.9.2019 at 04.00 - Vaasa (IV)
Timo Alanko, Vaasan Andromeda

Gopro preyed on the Yaogans in the night shift as well. When did they flash on Vaasa? Gopro was in the time of the cow bell. I can't find any information about Heavensabov either. Is there a fireball in the second pair of pictures, or a satellite too? Timing is not yet successful. Help with information about Yaogans ...

Images: 4 pcs

Westfordin neulat, Iridium 12

21.3.2015 at 22.56 - Laitila
Pirjo Koski

Yep, in the Milky Way shots, another fireball was left on the cell. It was no wedding, but a fireball nonetheless.

Comments: 2 pcs

Vilkkuvia ja välähteleviä satelliitteja

13.8.2020 at 23.41 - 01.31 - Kouvola (III)
Tero Sipinen, Ursa (Etelä-Suomi)

In addition to twenty meteors, a large number of banknotes were found in the images of the night after the Persian maximum. The "thirteen in a dozen" cases drawing a steady streak did not cause any major surprises, but all the flashed or flashing cases ended up being processed more closely. There were a dozen cases, so as two separate observations (part 2: link ). I made all the animations with a "cumulative streak image" in the section, which especially makes the regularity of multiple flashers easier to grasp. Figure 1 (13.8. 23.41) USA 238 / NOSS 3-6 (A) and (P). (P above, A after). I also ...

Images: 6 pcs

Search result contains observations from time period 1.1.1960 klo 00.00 - 31.12.2050 klo 23.59.