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

Ursa Astronomical Association

3 observations and 0 comments in queue.

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

Rocket-related clouds

8.10.2018 at 06.43 - Helsinki, Pukinmäki
Esko Lyytinen, Ursa (Etelä-Suomi)

Rocket firing observation from an infrared fireball camera. When I saw other observations of the case, I checked the picture of the time and it appeared. I had noticed that "soft" imprint already in the morning and wondered for a moment, but it remained unexplained until I got the information. The picture is facing north and moving there. #raketti: Falcon9 #satelliitti: SAOCOM 1A

Comments: 1 pcs

Active aurora band

7.10.2018 at 20.36 - Helsinki, Pukinmäki (III)
Esko Lyytinen, Ursa (Etelä-Suomi)

There is a fireball camera observation. And in fact, my first observation is with an infrared fireball camera. (The camera is infrared to make any daylight bulbs better visible in a much darker infrared sky.) At least now, northern lights are visible in light pollution with good contrast. It started at about 20 degrees and pretty quickly dropped to a lower angle. Apparently, with a quick look at the window, I saw one of them already at a clearly lower elevation angle than the beginning. Of the images, the one chosen as the main image was in fact second in time, the other two in the correct chr...

Images: 3 pcs • Comments: 1 pcs

A fireball at night, brigter than the venus

16.9.2018 at 03.32 - Helsinki, Pukinmäki (III)
Esko Lyytinen, Ursa (Etelä-Suomi)

I didn't see, I got my fire camera. There is a 2-minute summary on the left low next to a tree. I put the brightness of Venus brighter, as it was seen from a distance here, but it would have been closer to the brightness of a half-moon perhaps even more. It was apparently the same as the observation: https://www.taivaanvahti.fi/observations/show/77662 There was a so-called. a rapid fireball that clearly burned to the ground and was sporadic.

Comments: 1 pcs

Total lunar eclipse

27.7.2018 at 23.46 - 00.36 - Vesanto (IV)
Esko Lyytinen, Ursa (Etelä-Suomi)

I was on a boat watching and filming the eclipse. I was a little confused when, after careful lenses and the inclusion of binoculars, the main camera had split up and I had to pick it up just at the time when I thought it would appear and should have. There was a perception that it takes a good time for the night to darken and the moon to rise higher before I get completely darkened. I would have tried to make it as visible as possible with my infrared daylight balloon camera as early as possible, but unfortunately I didn't get an unobstructed view of it from all over the place. I replaced...

Images: 6 pcs • Comments: 1 pcs

A fireball at night, brigter than the venus

11.4.2018 at 22.06 - Helsinki (III)
Esko Lyytinen, Ursa (Etelä-Suomi)

There is a fireball camera observation, I did not see myself. The duration of the detection was 6.4 s. It seems to have been the antihelion type, and not a meteorite dropper, and not more special anyway, except that it happened to go pretty close in front of the camera.

A fireball at night, as bright as a cresent moon

27.3.2018 at 00.07 - Helsinki, Pukinmäki (IV)
Esko Lyytinen, Ursa (Etelä-Suomi)

I didn't see it, I got a fireball camera. It’s probably the brightest thing I’ve gotten on my camera in a few years. It was clear, but partly because it was pretty close. There are known images from six different stations. The entry speed was 25 km / s and went off at 29 km. It was so fast that there wasn’t much material left down. Probably disintegrated, and I don’t know how many larger head fragments there would be in number (not very much at least), but the largest ones are barely 10 grams larger if at all. So there is no need to look. According to estimates, what came down until it fel...

Comments: 6 pcs

A fireball at night, brigter than the venus

7.3.2018 at 04.37 - Helsinki (III)
Esko Lyytinen, Ursa (Etelä-Suomi)

I got a fireball camera, I didn’t see the fireball myself. There are as many as 7 or 8 cameras known to show up. Quickly, the observations of my own and Mikkeli's camera combined, says that it came in a northerly direction, flying at a slope of almost 60 degrees. I fly somewhat directly over Pori. And the entry speed was about 30 km / s, which means that it mostly burned off at that speed, turning off at about 30 km (Mikkeli camera). So it wasn't a decent meteorite dropper, but something a little "crumb" must have come down.

A fireball at night, brigter than the venus

24.2.2018 at 00.04 - Helsinki, Pukinmäki (III)
Esko Lyytinen, Ursa (Etelä-Suomi)

I got a sight on a fireball camera, I didn’t see it. My own observation combined with the observation of the Mikkeli camera says that it came from 203 degrees with a steepness of 53 degrees and a speed of 18.3 km / s. Extinguished at an altitude of 44 km Has almost burned out, some little bastard may have come down. The duration of the automatic detection was 2.72s. Exact time was 00.04.10 (Start) Ignition was in direction 334.3, at an elevation angle of 25.6 degrees. The extinction was in direction 340.9, at an elevation angle of 12.9 degrees. It went out above the Kuru parish, from the cente...

Comments: 1 pcs

Rocket-related clouds

22.2.2018 at 19.09 - 19.12 - Helsinki, Pukinmäki
Esko Lyytinen, Ursa (Etelä-Suomi)

I didn't see the phenomenon. I got to the fireball camera and shows up in two 2 minute snapshots. This is the case when the Falcon 9 rocket is braked on the second track at an altitude of about 500 km. Shown in the pictures on the left between the trees. #raketti: Falcon 9 FT

Images: 2 pcs

A fireball at night, as bright as a cresent moon

9.1.2018 at 08.08 - Helsinki, Pukinmäki (IV)
Esko Lyytinen, Ursa (Etelä-Suomi)

I didn’t see, I got my fireball camera through a tree branch. The exact time was 08.07.25 and the direction lost 348, at an altitude of 2.1 (degrees). It is estimated that it flew in the wigs of the Gulf of Bothnia, ie clearly north of the Kvarken with an entry speed of more than 30 km / s. Something "crumbs" may have come down all the way to the sea. It came pretty sharply from the east side.

A fireball at night, brigter than the venus

8.11.2017 at 01.05 - Helsinki 72 (III)
Esko Lyytinen, Ursa (Etelä-Suomi)

There was a fireball camera sighting, 3 minutes from the previous one. The automatic detection had a duration of 3.68 s. A rough estimate of the entry speed is of the order of 20 km / s. May have dropped a small meteorite, tens of grams perhaps. Extinguished in direction 344.4, at an elevation angle of 15.6 degrees. Pictured is the bright star on the left is Vega.

Comments: 1 pcs

A fireball at night, as bright as a cresent moon

8.11.2017 at 01.02 - Helsinki 72 (IV)
Esko Lyytinen, Ursa (Etelä-Suomi)

There is a fireball camera, I did not see. It was the first of two fireballs of the night, the second one flying much closer came exactly 3 minutes later. This came so exactly in minute 02 that it split into two 2 minute totals. For that reason, I put a 10-minute picture that shows the whole (every fifth frame). Did the exchange of images just confuse the recognition as there was no automatic detection. Can measure manually, but I haven't had time to do it yet. I set the brightness rating to mag. -8, but there might have been close to the brightness of the full moon at close range. The nor...

Comments: 4 pcs

A fireball at night, brigter than the venus

7.11.2017 at 00.21 - Helsinki 72 (III)
Esko Lyytinen, Ursa (Etelä-Suomi)

Fireball camera observation, I did not see. The duration in the automatic detection was 2.64 s and the exact start time was 00:20:34. Came pretty much towards, which is why the trail in the sky is rather short considering the duration. It was obviously really slow side but apparently went off pretty high and probably burned out.

A fireball at night, brigter than the venus

20.10.2017 at 20.07 - Helsinki 72 (III)
Esko Lyytinen, Ursa (Etelä-Suomi)

I didn’t see the fireball, I got to the fireball camera. The automatic detection had a duration of 2.32 s and the exact start time of the phenomenon was 20.06.31. There is another known camera observation that confirms that it was southern Tauride. It is obviously the same as the observation: http://www.taivaanvahti.fi/observations/show/67732

A fireball at night, brigter than the venus

4.10.2017 at 21.49 - Helsinki 72 (III)
Esko Lyytinen, Ursa (Etelä-Suomi)

I got a fireball camera I didn't see myself. The exact time was 21.49.16. The duration of the recognition was just over one and a half seconds. It is obviously the same as the observation: http://www.taivaanvahti.fi/observations/show/67371

Comments: 1 pcs

A fireball at night, brigter than the venus

11.8.2017 at 23.50 - Vesanto (III)
Esko Lyytinen, Ursa (Helsinki)

This is a radio observation of a fireball, so I didn’t see it. In other words, it is a scattering of a meteor-induced ionization cloud from TV image carriers in Moscow and also in St. Petersburg (and a third) that are on the same frequencies at 49.747 MHz. I haven’t put such observations here, but now that apparently there’s also a good photographic experience of this one, I’ll put it that way. http://www.taivaanvahti.fi/observations/show/66137 The meteor left a reflection of the dense ionization cloud for several minutes. And both of those stations also show a head-echo, that is, those steep ...

Comments: 4 pcs

A fireball in a twilight sky

28.4.2017 at 21.30 - Helsinki (IV)
Esko Lyytinen, Ursa (Helsinki)

There is a fireball camera observation, I did not see it myself. I already comment in the observation: http://www.taivaanvahti.fi/observations/show/63594 two or maybe three twilight fireballs seen at almost the same time. Here the sun was only 2 or 3 degrees below the horizon at the time and was visible quite on the sun side i.e. it was quite bright this one too. Was too fast to drop the meteorite. The exact time of this was 21.29.46 for its start. The duration in auto detection was 2.28 s, but was already bright when it came to the image area

A fireball at night, brigter than the venus

25.3.2017 at 00.12 - Helsinki (III)
Esko Lyytinen, Ursa (Helsinki)

There is a fireball camera observation, I did not see myself. It is connected to the observation of another camera and, despite the tense entry speed of a little over 16 km / s, practically burned out at an altitude of about 44 km. It was apparently a very light and weak material. The duration of the automatic detection was 3.48 s.

Comments: 1 pcs

A fireball at night, brigter than the venus

19.1.2017 at 18.00 - Helsinki 72 (III)
Esko Lyytinen, Ursa (Helsinki)

I got a fireball camera, I didn’t see myself. Has been linked to the observation of the Kyyjärvi spring chamber. Came from about 30 degrees with a steepness, just under 10 degrees. The entry speed was 44 km / s, which means it was fast and burned out. The flight altitude was about 100 -> 80 km. The (apparent) radiant in the sky was (RA, Dec) 168, +33, i.e. it was a sporadic meteor. The camera window was partly in frost (middle area), but the fireball flew in a frost-free spot. EDIT: It turned out to be apparently a meteor from the IAU working list flock Xi Ursae Majoris (XUM). To fix, the righ...

A fireball at night, brigter than the venus

6.12.2016 at 04.34 - Helsinki (III)
Esko Lyytinen, Ursa (Helsinki)

I got a fireball camera, I didn't see it. And when you take a closer look at the picture, another fireball appears in the same 2-minute sum picture. There is a flash on the lower right and up to the right shows a trace before the flash. It was quite far away and I think the brightness of the flash was absolutely fireball class even here. That distant was visible about a minute and a half earlier than that near one flew. They do not belong to the same flock, for example, so they happened to be close to each other in time.

Search result contains observations from time period 1.1.2000 klo 00.00 - 8.10.2018 klo 22.56.