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

Ursa Astronomical Association

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

Moon, Mercury and Seulaset

2.5.2022 at 22.00 - 00.00 - Eura (IV)
Jarkko Laukkanen, Porin Karhunvartijat

After clearing the weather, I went to the shore of a familiar lake to follow and describe the encounter of the Moon, Mercury, and the Sifters. Shortly after sunset, the crescent moon shone bright in the sky. Just over half an hour after sunset, Mercury also stood out with binoculars, and soon with its eyes. At no point did I see the screen with the naked eye or my 8 * 56 binoculars, but I also grabbed the pictures with the brightest 8 stars.

Images: 2 pcs

Sun

21.4.2022 at 13.30 - 14.00 - Rauma (V)
Jarkko Laukkanen, Porin Karhunvartijat

A couple of days later, the outlook was quite different. The same comma groups were visible, but the facets had already changed strikingly.

Images: 2 pcs

Sun

19.4.2022 at 11.30 - 12.00 - Rauma (V)
Jarkko Laukkanen, Porin Karhunvartijat

For a long time, the sun has to be photographed too! A short session at noon: Hundreds of images, 73 of which were selected for stacking and processing.

Images: 2 pcs

Moon

8.2.2022 at 20.30 - 21.30 - Rauma (IV)
Jarkko Laukkanen, Porin Karhunvartijat

The optical alignment and collimation of my new telescope (SkyWatcher MN190) is finally starting to find its rightful place. On Tuesday, the weather was cloudless for a long time, so it was time to try filming. The moon soared in the southern sky. As soon as I got to the screen of the Moon's camera, the weather soon became apparent: Today there was a good seeing, mostly gentle ripples and sometimes a little rumbling for a while. I stabbed the camera and sometimes did something else. A couple of times I went to check the focus, but that’s where it was and stayed. Eventually, "hundreds" of i...

Neptune

20.12.2021 at 18.00 - 19.30 - Rauma (II)
Jarkko Laukkanen, Porin Karhunvartijat

The changing winters of early winter have to be taken advantage of somehow, so I decided to “capture” the outer planets on the cell. Today it was Neptune's turn. By comparing the search map and test exposures of the Stellarium, I first searched for the western "head" of the Pisces (the ring formed by the stars), from which I headed down until Neptune was in the center of the image area. I took some sort of picture with both 70mm and 200mm focal lengths. The clouds interrupted the recording, so we had to return soon inside to edit the images. The first 2 images were taken at 70 mm, and the ...

Images: 4 pcs • Comments: 1 pcs

Uranus

16.12.2021 at 21.00 - 22.00 - Rauma (III)
Jarkko Laukkanen, Porin Karhunvartijat

The first target of the outer planet hunt was Uranus. The moon only shone about 30 degrees away, but I decided to give it a try because the sky looked clear at the start. Uranus was found after a reasonable search for the cell, aided by the Stellarium. The clouds began to wander in the sky, but I continued to shoot until the sky completely disappeared. The processing had to throw away quite a lot of images and the gradients caused by the Moon were also a disadvantage.

Images: 2 pcs

NGC188

21.11.2021 at 21.00 - 22.30 - Rauma (II)
Jarkko Laukkanen, Porin Karhunvartijat

The first longer observation and imaging session with a new telescope. From the edges of the original image, it can be seen that the alignments of the new pipe still have to be adjusted, so I cropped the image by about 50%. But to the destination: During the week, I got the chance to explore the ancient open constellation NGC188 through an article on Sky & Telescope. It is located near the celestial pole, about 4 degrees from Polaris (on the side of Cepheus). It is estimated to be 6.8 billion years old, so it is clearly older than the Solar System. However, it has remained piled up and avoided...

NGC869 & NGC884 / Caldwell 14

21.11.2021 at 20.00 - 21.00 - Rauma (III)
Jarkko Laukkanen, Porin Karhunvartijat

The Perseus binary star NGC869 & NGC884 / Caldwell 14 is always a nice destination to return to. Even asterisks are enough for the entire field of view so that you can evaluate the tube settings. So again this time, and there's still plenty to adjust.

Moon

18.10.2021 at 19.00 - 20.00 - Rauma (IV)
Jarkko Laukkanen, Porin Karhunvartijat

A new telescope (MN190) in the yard to cool down and get some time to close the camera. The moon roared nicely in the east, so there was no need to actually look for the first object. Seeing was calmly undulating and surprisingly good. But when we’re pretty close to the full moon, it was editing a little painful wrestling with the contrast.

Comments: 1 pcs

Sun

29.4.2021 at 16.00 - 17.00 - Rauma (III)
Jarkko Laukkanen, Porin Karhunvartijat

In the sun has begun to happen: Inspired by the comma group AR2818 / AR2820 / AR2821, the vermes in the yard and describe. Seeing was surprisingly good for the afternoon. This time, however, the stacking did not produce qualitative improvements, so the satisfaction is with the individual images. Visually, more was visible, e.g. the flashes in the second image clearly stood out from the camera screen while the focus was being honed.

Images: 2 pcs

Sun

21.4.2021 at 16.00 - 16.30 - Rauma (IV)
Jarkko Laukkanen, Porin Karhunvartijat

Nice weather and seeing pretty good. The sun has long been photographable: the sunspots 2816, 2817, and 2818 of the new polka dot period were nicely displayed.

Moon

17.4.2021 at 21.00 - 22.00 - Rauma (IV)
Jarkko Laukkanen, Porin Karhunvartijat

The weather of the evening promised good seeing. The "spring maintenance" of the optics stretched a little too late, and the cooling was interrupted when I already started the descriptions. Seeing was really good, and visually Barlowkin gave more details. It would have been necessary to have a slightly better cooled tube for the description.

Nova N Cas 2021

21.3.2021 at 21.30 - 22.00 - Rauma (II)
Jarkko Laukkanen, Porin Karhunvartijat

Email news reported that the new Nova had flared in Cassiopeia, so it was a must to try to describe it once it was clear. https://skyandtelescope.org/astronomy-news/observing-news/bright-nova-erupts-in-cassiopeia/ I was shooting in a fairly wide field because I wasn’t quite sure of the location, but based on the appropriate orienteering stars, the nova did capture the images!

Images: 2 pcs

Starry sky image

16.3.2021 at 21.30 - 22.00 - Rauma (III)
Jarkko Laukkanen, Porin Karhunvartijat

Mars was hiding in the constellation Taurus on the evening of March 16, 2021, between the Hyads and the Sifters. Due to the size of the field of view, the lens this time is "Nifty-fifty" Canon 50 mm F / 1.8 STM, which is quite a suitable glass for the starry sky F74 dimmed.

4 Vesta

5.3.2021 at 21.30 - 22.00 - Rauma (III)
Jarkko Laukkanen, Porin Karhunvartijat

I set out to hunt asteroid Vesta on a clear evening from the Lion's tail. I photographed 60 30 s exposures with the idea of just making it clearly visible. And that’s what you saw when you got on the plane to compare to the roofs of the Stellarium. As a small positive surprise, more came into the picture! The Lion's galaxy triad was also clearly visible. Less frequently, it has itself become a captured image, with astronomical objects from three "layers" of a completely different scale: the Solar System, the Milky Way, and other galaxies.

Images: 2 pcs

Mars ja Seulaset

5.3.2021 at 21.00 - 22.00 - Rauma (IV)
Jarkko Laukkanen, Porin Karhunvartijat

Mars is closest to Seoul on Wed-Thu night, but there were no filming at that time. There were suns on Friday night, and I decided to take a little longer exposures. This time, the mists of the screens also grabbed weakly. The handsome "propeller" of Mars is made by the dimmer plates of my lens.

Comments: 2 pcs

Mars

2.3.2021 at 20.00 - 22.00 - Rauma (IV)
Jarkko Laukkanen, Porin Karhunvartijat

Mars has been spying for some time near the Sifters. I photographed these a couple of nights, here are the results from Tuesday.

M45

26.2.2021 at 19.30 - 20.00 - Rauma (III)
Jarkko Laukkanen, Porin Karhunvartijat

Mars is approaching the open constellation of the Screens (M45). Mars is closest in early March. However, the encounter is already a pretty nice sight, both with binoculars and recorded with a camera. Edit: Image corrected.

Moon

19.7.2020 at 03.30 - 04.00 - Rauma (II)
Jarkko Laukkanen, Porin Karhunvartijat

I got up in the morning to look for the Moon and Mercury in the morning sky. Mercury was left behind the clouds, but the Moon allowed itself to be photographed part of the time as the clouds flew in the sky.

Images: 2 pcs

Kuu ja Venus

17.7.2020 at 03.00 - 03.30 - Rauma (IV)
Jarkko Laukkanen, Porin Karhunvartijat

I got up in the morning to photograph the Moon and Venus rising together in the northeastern sky. The lake was calm, and even the Venus Bridge (the reflection of Venus on the surface of the water) stood out clearly on the surface of the lake. The shade world of the lake, that is, the night in wonderful colors.

Images: 3 pcs

Search result contains observations from time period 1.1.2000 klo 00.00 - 23.5.2022 klo 10.19.