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

Ursa Astronomical Association

4 observations and 0 comments in queue.

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

All-sky aurora

28.1.2022 at 23.00 - 02.30 - Kittilä (IV)
Jani Laasanen, Turun Ursa

Despite the clear day, the northern lights forecasts (and also the real situation) looked quite modest in the early evening. After 11 p.m., however, things more interesting to the photographer began to happen. First, attention was drawn to the northern lights that covered almost the entire sky, and various signs of life began to appear occasionally. Over the course of the night, the gauze transformed into typical arches, belts, and rays, living a sluggish life. At about two o'clock, the shapes began to crack in an abnormal way in their own eyes, resulting in clear line-like structures in t...

Images: 4 pcs • Comments: 3 pcs

All-sky aurora

25.1.2022 at 17.30 - 22.30 - Kittilä (IV)
Jani Laasanen, Turun Ursa

Great northern lights across the sky, showing virtually all the most common shapes and colors during the evening. The show started soon after dusk, when pearl clouds were also visible at the same time. There is also a separate observation of these. https://www.taivaanvahti.fi/observations/show/104232 The northern lights in the early evening were more colorful than later in the evening. After ten, clouds began to flow from the west, which began to have some effect on observation and filming. I stopped filming this one shortly after ten, even though the nice-looking arches were still alive in th...

Images: 4 pcs • Comments: 2 pcs

Pearl clouds

25.1.2022 at 15.45 - 18.15 - Muonio (III)
Jani Laasanen, Turun Ursa

Quite nice-looking pearls were seen soon after three on the way to the church village of Muonio. After the shopping trip, strong pearly colors had formed in two clouds visible in the west. The lighter (type I) clouds were visible in the southward direction as a narrow band. When I returned to Pallastunturi, the northern lights also appeared almost immediately after the evening was blurred. Even at six o'clock, however, the glow of pearl clouds was still visible in the western sky, which fit in with the northern lights and Pallastunturi (Fig. 3).

Images: 3 pcs • Comments: 10 pcs

Uranus

8.11.2021 at 21.00 - Paimio (III)
Jani Laasanen, Turun Ursa

Uranus was nicely photographable, and when I had hardly tried to describe it before, the telescope then headed for it. Uranus himself did not produce shocking surprises, but appeared as a greenish and slightly obscure disc in a stack of 400 / 20,000 images. After filming the planet, it was the turn of the moon, which appeared in four pieces (named and marked in the picture). The fifth object next to Uranus turned out to be an ordinary star. Miranda, who could also have been brought out, was close to the planet this time and faded into its lights.

Images: 2 pcs

136199 Eris

8.11.2021 at 20.30 - Paimio (I)
Jani Laasanen, Turun Ursa

The dwarf planet Eris, currently orbiting in the constellation of the whale, is not the easiest to reach the solar system's subjects. The staggering 95 AU distance and +18.75 magnitude brightness pose challenges for both shooting and recognition. In addition to the coordinate data, a digital All Sky Survey map of the entire starry sky has been used for identification, with an excerpt in Figure two. The star at almost the same point in the identification (a very faint echo in the photo below Eris) challenged me a bit, but finally, looking at the angle between the stars, Eris was revealed as...

Images: 2 pcs • Comments: 2 pcs

Pluto

8.9.2021 at 21.55 - Paimio (II)
Jani Laasanen, Turun Ursa

Having had time to see four years since Pluto's previous description. Unfortunately, from an altitude of about 7 degrees, atmospheric distortions cause strong distortion in the shape of the stars. However, Pluto itself became quite visible.

Eye-catching night shining clouds

21.7.2021 at 00.20 - Turku (V)
Jani Laasanen, Turun Ursa

Shortly after midnight, the "memory" checked the night cloud situation and then there was already a rush to pick up the camera in the yard. I started filming from a nearby ball field where I did a quick assessment of the situation (Figure 1). I ended up continuing on a nearby hill where the views were a little more spacious (Figures 2 and 3). The play of the northern sky was really bright and wide-ranging. Around half past two, some lower clouds also arrived, leaving the memory card full towards home.

Images: 3 pcs

Partial solar eclipse

10.6.2021 at 12.35 - 15.15 - Raisio (IV)
Jani Laasanen, Turun Ursa

Free, so the backyard observatory can stand up and enjoy the summer day and the eclipse. A single image with even a close look at a couple of commas.

Mercury

13.5.2021 at 15.00 - 16.30 - Paimio, Kevolan observatorio (V)
Petrus Kurppa, Mikko Heino, Jani Laasanen, Turun Ursa

The Turku Ursa Planet Yacht Company decided in good time to try their luck with the planet of the messenger of the gods. The beautiful, downright summer weather changed as if from cloudless to partly cloudy. Our party did not give up on being small, after all, the planet Mercury is so small that all it takes is a small opening in the cloud cover. Following the scent of Paimio's countryside and lingonberry, we prepared Planewave 17 "CDK for telescope. Thanks to the stand, the planet Mercury is not even challenging to find in the daytime. Thanks to the dome, the sun stayed safely out of sigh...

Images: 2 pcs

Apenniinit and Kaukasus

21.3.2021 at 20.00 - Turku (IV)
Jani Laasanen, Turun Ursa

The crescent moon on Sunday evening rose to a wonderfully clear sky, so for a long time I ended up at the Iso-Heikkilä observatory in Turku by a traditional 15 cm lens telescope made by Yrjö Väisälä. The first pictures also showed that the atmosphere was quite calm and I decided to test how 4x Barlow bites the Moon. I chose the mountains near the terminator, the Caucasus and the Apennines. #Lunar100: 040

Images: 2 pcs • Comments: 1 pcs

Pilvikaari maanpinnalta

17.1.2021 at 15.30 - Turku (III)
Jani Laasanen, Turun Ursa

After the cooking and other activities of the day, we got a glimpse of Taivaanvihti's observations, from which numerous observations of the cloud arc popped into my eyes, especially from the Turku region. It was already well over three o'clock, so I thought the arc had already disappeared from view, but I still decided to stop outside to peek. And yes, it was only there that the arch was still visible, so this one too came to be spotted.

Comments: 1 pcs

Mars

20.11.2020 at 20.30 - Turku (III)
Jani Laasanen, Turun Ursa

The apparent size of Mars is shrinking rapidly, but I still went to test whether it was possible to photograph a vacation of fast-moving clouds. Whether the surface of the planet was covered in recent rotating dust storms or whether clouds and humid air affected the modest view. During the brighter moment that lasted half an hour, I got a couple of videos scraped together, with a forcibly distorted picture of one attached. Yes, you can apply for details by applying.

Mars

3.11.2020 at 22.10 - Paimio (IV)
Jani Laasanen, Turun Ursa

The brightening of the weather came as a bit of a surprise, so after a long break I ended up trying to photograph Mars once again. The weather, a bigger surprise, however, was provided by seeing, which at its best was really good. However, there was quite a lot of variation at times, even within a very short time. The best episode hit a video of 20,000 images this time, from which I dared to pick up up to 4,000 frames for stacking. The filter in this particular series was Astronomik’s 742nm IR-pass, which this time anyway seemed the best option in the evening’s conditions.

Mars

14.10.2020 at 22.33 - Turku (III)
Jani Laasanen, Turun Ursa

Nothing new under this sky. In honor of the recent opposition to Mars, another observation to complete the table setting. Seeing was, as usual, weak and Mars rattled on the screen like a pinball ball. In the end, however, it was a nice surprise that I got a clear picture of the material. From the lower edge of the planet you can even distinguish the light-colored volcanic area of Olympos Mons.

Mars

2.10.2020 at 23.00 - Paimio, Kevolan observatorio (III)
Jani Laasanen, Turun Ursa

A confusing evening as the moon shines faintly reddish behind some sort of mist veil. However, the Finnish Meteorological Institute knew that it would be smoke from forest fires somewhere in southern Russia. Anyway, sometimes the fog was so thick that even the brightest stars were very challenging to detect. When Mars appeared on the computer screen, hopes did not rise very high in terms of images anyway. The atmosphere seemed really restless, and there was no way to get proper focus. However, given the circumstances, the outcome was quite tolerable. Attached is a stack of 1,000 images of Mars...

Mars

27.9.2020 at 23.50 - Paimio, Kevolan observatorio (IV)
Jani Laasanen, Turun Ursa

Yes, this planetary description is quite a challenging task. Still, it can be said that the best shots will emerge somewhere in the future. At Kevola Observatory, different combinations with barlows and IR filters were tried again. The best result came again directly with a focal length of about 3000 mm and a Baader 685nm IR-pass filter. For the first time, however, with Televue’s 4x barlow, I got something more for the cell than just a pixel jam (Figure 2). The 1,200 images from the 15,000 frame video used in both stacks.

Images: 2 pcs

Mars

19.9.2020 at 00.00 - Turku (III)
Jani Laasanen, Turun Ursa

Completely supplement these observations of Mars with a single image. Väisälä's 15 cm lens telescope is suitable for viewing planets, but of course it is a bit challenging for manual adjustments. Minor errors due to variability in brightness with respect to the hemisphere and the western edge are also visible here. ' The end result is a combination of 500 images from a series of 20,000 video images. The auxiliary piece was Baader's 685nm IR-pass filter. The atmosphere was so turbulent that the barlows did not add value to the images this time. The focal length in the picture is the...

Pääsateenkaari

6.9.2020 at 17.00 - Raisio (III)
Jani Laasanen, Turun Ursa

The stump of the rainbow brightened into a small deaf cloud on the way home. For a while, a side rainbow was also visible, but no longer after finding a suitable place to take the picture.

Mars

2.9.2020 at 00.20 - Paimio, Kevolan observatorio
Jani Laasanen, Turun Ursa

For a long time, when again there was time for planetary photography, then of course seeing fluttered somewhere between the miserable and the unfortunate. Baader's 685nm IR-pass filter seemed to help the best this time, although it didn't work wonders either. However, this visit to the observatory is now being documented as well.

One halo form

29.8.2020 at 15.30 - Paimio (I)
Jani Laasanen, Turun Ursa

An ordinary 22 ring appeared in the cloud gauze that arrived from lunch during the Star Hobby Day.

Images: 2 pcs

Search result contains observations from time period 1.1.2000 klo 00.00 - 27.1.2023 klo 22.42.