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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

23.3.2023 at 20.24 - 20.36 - Inari, Ivalo
Panu Lahtinen, Pollux, Aalto-yliopisto

Barium clouds spread by the Kiruna sounding rocket as recorded by a sky camera. A single image is a maximum stack of 30 s from the video.

Pearl clouds

29.1.2023 at 07.58 - 08.45 - Espoo (IV)
Krista Wright, Panu Lahtinen

In the morning sky, shimmering pearlescent streaks, including some quite bright ones. They were partially covered in orange-colored mammatus-type middle clouds.

Images: 4 pcs

A fireball at night, as bright as a crescent moon

27.1.2023 at 18.05 - Espoo (III)
Panu Lahtinen, Pollux, Aalto-yliopisto

Sky camera observation of fireball. According to the timing data, this had a duration of 2.68 s. The image was compiled from a 24 fps video by collecting the brightest value from a period of 60 s for each pixel.

Comments: 6 pcs

Pearl clouds

27.1.2023 at 16.30 - 17.50 - Espoo (III)
Panu Lahtinen, Pollux, Aalto-yliopisto

Finally, it was clear enough to get a reasonable observation about pearls. The first picture is a panorama of 6 pictures, the second one is a "fan" that rose high above the horizon at the very end, with sometimes quite handsome rays.

Images: 2 pcs

A fireball at night, as bright as a crescent moon

2.8.2022 at 00.15 - Espoo (III)
Panu Lahtinen, Pollux, Aalto-yliopisto

Sky camera observation of bright fireball. Duration in visible flight 1.96 s.

Comments: 1 pcs

Other special clouds

4.7.2022 at 12.30 - Inari, Ivalo (IV)
Krista Wright, Panu Lahtinen

Stylish horseshoe vortex, visible for about 2 min.

Images: 2 pcs

Rare halos

27.3.2022 at 11.00 - 13.15 - Espoo (IV)
Panu Lahtinen, Krista Wright, Pollux, Aalto-yliopisto

In exchange for pyramid halves. You can't be sure about those bumps, but they will be corrected if there are other opinions.

Images: 4 pcs

A fireball at night, as bright as a full moon

20.3.2022 at 03.00 - Inari, Ivalo (III)
Panu Lahtinen, Pollux, Aalto-yliopisto

A camera observation of a rather bright fireball. Duration 3.2 s based on image data. In the second image, automatically detected pixels in red for clarity.

Images: 2 pcs

Rare halos

18.3.2022 at 14.03 - Espoo (IV)
Panu Lahtinen, Krista Wright, Pollux, Aalto-yliopisto

In the cirrostrating of the front edge of the front zone, the huts are quite lively. The horizon ring stood out inside the 22r for a moment. Possibly Lowitzia as well. Parry is also clear visually. There are more pictures in the organization, you have to try to remember to extract them from there sometimes.

Images: 6 pcs

Rare halos

10.3.2022 at 09.51 - Espoo (IV)
Panu Lahtinen, Pollux, Aalto-yliopisto

Pyramid halos.

Other special clouds

3.2.2022 at 14.35 - Espoo (IV)
Panu Lahtinen, Krista Wright, Pollux, Aalto-yliopisto

For a long time, a fairly clean hole cloud. In the rain streaks for a while, a piece of halo also stood out, with a hint of color in the picture. Added a second image version with increased saturation and contrast. The residues of the halo stand out a little better.

Images: 2 pcs

A fireball at night, as bright as a full moon

1.2.2022 at 16.50 - Inari, Ivalo (III)
Panu Lahtinen, Pollux, Aalto-yliopisto

A really long lasting fireball with your sky camera. The visible part in the area of the picture was visible for 7.5 s, and certainly continued its journey beyond it.

Comments: 2 pcs

Quiet aurora arc

27.12.2021 at 20.30 - 21.15 - Inari, Ivalo (II)
Panu Lahtinen, Krista Wright, Pollux, Aalto-yliopisto

The first northern lights of the Christmas holiday trip, just over a week can be expected. The specialty is the dim and relatively long lines that have passed through the sky, accompanied by animation. Joni and Pasi are also noticing.

Images: 3 pcs

SL-4 R/B (2021-081B)

11.9.2021 at 23.25 - Inari, Ivalo
Panu Lahtinen, Pollux, Aalto-yliopisto

Rocket phase of Razbeg-1 launch a couple of days later. The altitude of the rocket phase was about 300 km of the orbital parameters at this stage. The image is 120 s maximum stack. Samsung SCB-2000, Fujinon YV2.2x1.4A-SA2L 1.3-3.1 mm, f / 1.4.

Rocket-related clouds

9.9.2021 at 23.04 - 23.10 - Inari
Panu Lahtinen, Pollux, Aalto-yliopisto

Sky camera observation of Razbeg-1 rocket launch. The image is a 6 minute maximum stack of 25 fps video.

Bright night shining clouds

4.7.2021 at 23.47 - 02.10 - Espoo (IV)
Panu Lahtinen, Pollux, Aalto-yliopisto

Sky camera observation of really bright night clouds.

Bright night shining clouds

30.6.2021 at 00.25 - 02.50 - Espoo (IV)
Panu Lahtinen, Pollux, Aalto-yliopisto

Sky camera observation of quite bright night clouds. With a darker backdrop, these would probably have been incredibly great. The first frame of the video (with no night clouds yet) is a 60 st maximum stack starting at 23.54 SKA, and the last at 02.53 SKA started.

Bright night shining clouds

24.6.2021 at 00.05 - 02.47 - Espoo (IV)
Panu Lahtinen, Pollux, Aalto-yliopisto

Sky camera observation. The first video is composed of maximum stacks of 60 s, the second of 60 sts of average stacks minus the previous average stack and the rest stretched by linear fitting.

Images: 4 pcs • Comments: 1 pcs

Arcus cloud

23.6.2021 at 14.15 - Espoo (V)
Panu Lahtinen, Pollux, Aalto-yliopisto

The nicest avalanche I've ever seen. Visually goes even ahead of Sylv , although the pictures / videos are not as spectacular. The number of flashes (Discharge Channels) seen during the season doubled from one to two!

Images: 2 pcs • Comments: 1 pcs

Dim night shining clouds

20.6.2021 at 23.34 - 02.25 - Espoo (II)
Panu Lahtinen, Pollux, Aalto-yliopisto

Tiavaskamera camera observation. In the first video a video composed of maximum stacks of 60 s, in the second approximately the same period so-called. of "magic stacks," i.e., average stacks minus the stack a couple of minutes earlier, and the end result stretched by linear fitting. The latter video also shows high twilight rays.

Images: 2 pcs

Search result contains observations from time period 1.1.2000 klo 00.00 - 31.3.2023 klo 21.56.