Contact information

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

Ursa Astronomical Association

2 observations and 0 comments in queue.

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

A fireball at night, brigter than the venus

6.11.2020 at 20.25 - Helsinki 72 (III)
Esko Lyytinen, Ursa (Helsinki)

There is a fireball camera observation, I did not see it myself. Seems to be N-Tauride. And in fact, it’s a pretty good “replay” for two days back. https://www.taivaanvahti.fi/observations/show/94671 This had a duration of 1.72 s, which means that the small wall was more modest than before.

Images: 2 pcs

A fireball at night, brigter than the venus

4.11.2020 at 20.53 - Helsinki 72 (III)
Esko Lyytinen, Ursa (Helsinki)

There is a fireball camera detection. The duration of the identification was 2.36 s. I attach a 2 m total image and a BT map image. Seems to have been N-Tauride. It is the same as in Jyväskylä's observation: https://www.taivaanvahti.fi/observations/show/94615

Images: 2 pcs • Comments: 1 pcs

A fireball at night, brigter than the venus

27.9.2020 at 22.43 - Helsinki (III)
Esko Lyytinen, Ursa (Helsinki)

There is a fireball camera observation, I did not see myself. A couple of visual observations of the same seem to already exist. In automatic detection, the duration was 2.4 s. Lost in the direction of 22 degrees at an angle of 25 degrees. The more accurate time to start was: 22,43,11.

A fireball at night, as bright as a cresent moon

1.9.2020 at 21.42 - Helsinki (IV)
Esko Lyytinen, Ursa (Helsinki)

I promised in my 93315 comment to put this observation here (a little delay due to other chores). In the picture on the right, there is almost only a spot spread by the brightness. However, a little more trace stands out weakly and got it better from the recognition coordinates. I also connect BT. According to it, the 380 KDR meteor of the flock of the IAU Working List would fit quite well. I estimate the brightness from Figure -7. According to it, there would have been, in absolute and / or near below, about half a month of brightness in a flash. The duration in detection was 0.64 s, but the ...

Images: 2 pcs

A fireball at night, brigter than the venus

1.9.2020 at 02.44 - Helsinki 72 (III)
Esko Lyytinen, Ursa (Etelä-Suomi)

It was the first night after the summer scenery when my fireball camera was up and it was also clear. There came several bright meteors, two of which I put here. The second is at the link: https://www.taivaanvahti.fi/observations/show/93301 And it also has a BT map where this is also visible. In this picture, the fireball is on the left. And you can also see a bright satellite flash and Venus at the bottom of the picture. I set the magnitude to -5, which would have been basically about -8.

A fireball at night, brigter than the venus

1.9.2020 at 00.15 - Helsinki 72 (III)
Esko Lyytinen, Ursa (Etelä-Suomi)

I will put an observation here because there are a couple of other observations on this. There is a fireball camera observation and I did not see it myself. I attach a 2-minute summary image and a BTrail image that also shows a rear extension on the star map. Here is also the second fireball of the night, from which point I will also put the observation. EDIT: That other one is on the link https://www.taivaanvahti.fi/observations/show/93302

Images: 2 pcs • Comments: 2 pcs

Telescopic comet NEOWISE

8.8.2020 at 00.35 - Vesanto
Esko Lyytinen, Ursa (Helsinki)

I spotted a comet with the same hardware and technology as before: https://www.taivaanvahti.fi/observations/show/92048 The last time there was a long distance, when there has hardly been a clear sky at night. And it has dimmed more than I thought. The light frames were 16x10 s and the reference background was also 16 images. Appears as a small bulge in the center of the image. In the single image, I got poorly visible with very strong image processing. I tried to binocular with 20x80 binoculars without success. And when I saw in the picture there was probably nowhere to be seen, I didn't s...

Telescopic comet NEOWISE

17.7.2020 at 01.22 - Vesanto
Esko Lyytinen, Ursa (Helsinki)

I spotted a comet with the same old tried and tested technique https://www.taivaanvahti.fi/observations/show/91790 As an improvement on the previous one, a little tracking stand was now in use. The image and reference image are each 40x0.5 s ISO 100 exposures, with a Canon EOS 6 camera and a 135mm F / 3.5 small telescope. Pictured is the north at the top left. NLC clouds interfere with tail length measurement. It should stand out by a degree. In the larger picture, up to two degrees may take shape. With the eyes and not in a normal single image, these clouds were not separated, but at the end ...

Telescopic comet NEOWISE

11.7.2020 at 00.55 - Vesanto
Esko Lyytinen, Ursa (Helsinki)

The attempt I made four nights earlier was unsuccessful (I didn’t get it), but now last night I succeeded with the same equipment and technology. I didn’t see it with the 20x80 binoculars, but I got out in the picture with strong image processing. That is, I took a background reference image from the same or slightly next to it and used it as a flatten when stacking. The first image shows both of the 30 light supports stacked 1/8 s ISO 100 stacked as negative for both the actual image and the reference image. Telephoto lens 135 mm 1 / 3.5. The image thus appears as two in the image, i.e. negat...

Images: 2 pcs • Comments: 2 pcs

A fireball at night, brigter than the venus

23.4.2020 at 00.27 - Helsinki 72 (III)
Esko Lyytinen, Ursa (Etelä-Suomi)

There is a fireball camera, And there was a Lyrid fireball. The duration was 1.24 s in the recognition and a more accurate time for the start of 00.26.42.

A fireball at night, brigter than the venus

21.4.2020 at 02.04 - Helsinki 72 (III)
Esko Lyytinen, Ursa (Helsinki)

There is a fireball camera. I didn't see it myself. The camera shoots with near infrared. There was a fireball in the Lyridi meteor flock. I flock to the maximum not next night on the morning side. Nothing particularly powerful is expected to be this year.

Binocular comet ATLAS

30.3.2020 at 22.28 - Helsinki
Esko Lyytinen, Ursa (Etelä-Suomi)

The picture was taken with a digital tripod on a fixed tripod with a light pollution filter, telephoto lens 180 mm F3.5 (which was slightly limited by the filter). 60x 6s of exposures stacked with DSS. Is my first attempt at filming this comet.

A fireball at night, brigter than the venus

25.2.2020 at 04.11 - Helsinki (III)
Esko Lyytinen, Ursa (Etelä-Suomi)

There’s a full-sky-fireball camera sighting I didn’t see myself. The duration of the automatic detection was 1.6 s.

Comments: 1 pcs

Active aurora band

6.2.2020 at 22.32 - 22.38 - Helsinki (III)
Esko Lyytinen, Ursa (Etelä-Suomi)

The detection is from an infrared-detecting fireball camera. The Watec camera has a filter that allows a longer wavelength to pass through approximately the visible boundaries. Of course, it doesn't give spectacular color images, but it's actually good to detect northern lights quite far away at low altitudes, because the sky is dark even in light pollution and in the moonlight, and the absorption (extinction) into the atmosphere is low even at low altitudes. Appeared remarkably active in only three 2-minute peakhold images, and the timing reported is also from this vibe. Before that, ...

Images: 3 pcs

A fireball at night, brigter than the venus

4.1.2020 at 21.46 - Helsinki (III)
Esko Lyytinen, Ursa (Etelä-Suomi)

There is a full sky fireball camera observation. There appears to have been a rapid sporadic meteor Flew from left to right in the picture.

A fireball at night, as bright as a cresent moon

23.11.2019 at 23.05 - Helsinki (IV)
Esko Lyytinen, Ursa (Etelä-Suomi)

There is an observation of a firing camera imaging in the IR area. I didn't see it myself. I also include a BTrail map, which apparently was Tauridi. This is based on previous camera calibration, so not very accurate. There are several visual observations of this and a couple of other camera pictures, I haven't measured those pictures.

Images: 2 pcs

A fireball at night, as bright as a cresent moon

1.11.2019 at 03.38 - Helsinki (IV)
Esko Lyytinen, Ursa (Etelä-Suomi)

There is a fireball camera detection with an infrared camera. The picture on the right shows almost only a flash. Yes, the movement survived the detection and the duration was 0.56 s. At the edge of the image, the bright mark has spread asymmetrically. I estimate that there was about a mag -9 brightness seen here, in which case the absolute brightness (100 km away) would have been about the full moon brightness. Quickly burned out.

A fireball at night, as bright as a cresent moon

10.10.2019 at 21.10 - Helsinki (IV)
Esko Lyytinen, Ursa (Etelä-Suomi)

I got a fireball at both my full sky camera and the north-facing infrared camera. The duration in the latter was exactly 9 s. I'll put a picture of it here. It had probably hit my image area the most in a couple of years. However, according to estimates, it only dropped small chips that are not worth looking for in Finnish forests. EDIT: Stubbornly "takes" my observation site somewhere in Alaska's Helsinki 72 or Helsinki, Pukinmäki places. I'm trying to click on the map.

Comments: 5 pcs

Perseidit

11.8.2019 at 03.22 - Vesanto
Esko Lyytinen, Ursa (Etelä-Suomi)

I'll put a little observation on this for a few nights. The headline time was on the fireball camera for the brightest Perseid. The maximum night was partly clear, but the humidity ruined the visibility of the camera window. As late as 10pm there was a downpour and a camera next to the wet foliage on the other side of the lake. At 13/14 night I also put the brightest fireball camera in the 2 m sum shot (0230 - 0232). At the time, there was also a digital camera Canon EOS 6D shooting 28mm, F1.8 lens mode almost the same area. This came to the far left of the image so that only the beginning...

Images: 3 pcs

A fireball at night, brigter than the venus

5.8.2019 at 01.27 - Vesanto (III)
Esko Lyytinen, Ursa (Etelä-Suomi)

I did not see the fireball, is a fireball camera observation. It was likely Perseidi. And in Gustav's observation: https://www.taivaanvahti.fi/observations/show/84653 both night camera bullets have been seen.

Search result contains observations from time period 1.1.2000 klo 00.00 - 26.1.2022 klo 6.59.