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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.

Starscape image

8.9.2016 at 22.00 - 02.00 - Porvoo, Sondby (V)
Jorma Koski, Ursa (Helsinki)

The sky orbited the North Star for four hours, and even a little of the greenery of the revountes was visible in the shallow northern sky.

Sun

10.7.2022 at 12.00 - Helsinki (V)
Samuli Vuorinen, Kirkkonummen komeetta

Weather permitting, I photographed the sun again at the H-alpha wavelength with a self-built Sol'Ex spectroheliograph. The image is a stack of several scans over the sun.

M31

29.10.2019 at 23.00 - Kirkkonummi, Komakallio (V)
Samuli Vuorinen, Kirkkonummen komeetta

I photographed this classic object, the Andromeda Galaxy, again after switching from a telescope in the summer to a short-focal lens telescope. Despite the short focal length, the subject did not fit completely in the camera cell, but the subject is depicted as a mosaic. The image consists of four smaller images. The subject has been exposed for two nights in September-October, but due to other hustle and bustle, processing was not left until December. A strange bulge appeared around the brighter star next to the galaxy, probably due to the moisture in the optics.

Comments: 4 pcs

M42

15.1.2016 at 23.00 - Kirkkonummi (V)
Samuli Vuorinen, Kirkkonummen komeetta

I started filming this old familiar subject as early as the December side, but most of the exposures came to be collected last night. The image is a two-frame mosaic, and both halves have about 2 hours of exposure.

Comments: 15 pcs

M42

22.1.2020 at 23.00 - Kirkkonummi, Komakallio (V)
Samuli Vuorinen, Kirkkonummen komeetta

I photographed Orion's large gas fog from the Komakallio remote observatory on both sides of the turn of the year on a total of five different nights. There is a total of 11 hours of exposure in this image, so the image is not the longest project of this season, but clearly the most challenging to handle. The image is a two-part mosaic, and I photographed both short and long exposures of the subject. Without such gimmicks, the brightest parts of the fog would burn helplessly. I’m still not completely happy with the colors in the picture, but I’ve been delaying the release of the picture fo...

Comments: 6 pcs

M42

8.12.2021 at 00.00 - 02.30 - Kirkkonummi, Komakallio (V)
Samuli Vuorinen, Kirkkonummen komeetta

The fog of Orion and its surroundings will not be visible to Komakallio in Kirkkonummi for a very long time at a time, so I photographed this subject on four different nights. The image is a 3-part mosaic, and each part is exposed for a total of about 4 hours. At the bottom left you can see both the Flame Nebula NGC 2024 and the Horse Head Fog IC 434, and at the top right you can see Orion's large gas fog M 42.

Comments: 2 pcs

Starscape image

13.6.2018 at 22.00 - 05.00 - Teneriffa, Teiden kansallispuisto, Espanja (V)
Samuli Vuorinen, Kirkkonummen komeetta

We were in a small group of star photographers in Tenerife for a week. On Wednesday-Thursday night, a layer of central clouds covered the light pollution of coastal cities, leaving Teide National Park particularly dark. The Milky Way shone magnificently in the sky and several objects from the deep sky were visible to the naked eye. We were in the park shooting until five in the morning. Here are the best landscape stars from us that night.

Images: 4 pcs • Comments: 5 pcs

NGC 7000

15.8.2019 at 23.15 - 03.00 - Kirkkonummi, Komakallio (V)
Samuli Vuorinen, Kirkkonummen komeetta

The shooting season has finally opened with the new Skywatcher Esprit telescope. The night sky is still relatively bright, but so bright that hydrogen emissions can already be captured with a narrowband filter. Pictured is the classic North American fog NGC 7000.

Images: 3 pcs • Comments: 3 pcs

NGC 7000

28.8.2019 at 23.00 - 03.30 - Kirkkonummi, Komakallio (V)
Samuli Vuorinen, Kirkkonummen komeetta

The nights are starting to get so dark again that with clear weather, you have time to illuminate for several hours a night. I photographed the North American fog NGC 7000 over two nights for a total of 5.5 hours. I’m still learning how to use the new Esprit 100ED telescope, but so far I’ve been very happy!

Images: 2 pcs

NGC 7000

13.10.2021 at 21.24 - 23.11 - Kirkkonummi, Komakallio (V)
Samuli Vuorinen, Kirkkonummen komeetta

During the summer, I switched a notch to a larger star camera, and finally got to take the official first light with it. I targeted the classic North American fog, which is very hollow this fall. With the new camera, the field of view is so wide that it can also accommodate the adjacent Pelican Mist, i.e. the IC 5070. In addition to the full view, I added a couple of details in 100% size to the observation. The other little bit sadly left a small satellite chip that I missed during the stacking phase, and I no longer wanted to leave to do the whole processing again because of the Streak.

Images: 3 pcs

Telescopic comet Forbes

29.8.2018 at 01.24 - 01.45 - Orimattila, Artjärvi, Tähtikallio (V)
Veikko Mäkelä, Ursa (Helsinki)

The last observation of the night was a dim comet 37P / Forbes. The comet just appears in the stacked image. The brightness is in the order of 15.5-16 mag.

Sun

21.8.2017 at 12.34 - Siilinjärvi (V)

Whether it’s the spotty sun today and the calm atmosphere, at least for a while - it became foggy as soon as I invited the neighbors to marvel at the spots.

IC 342

22.1.2017 at 01.00 - Orimattila, Artjärvi, Tähtikallio (V)

Fine, visible from above (or below!) As a spiral galaxy, and yet just the right size for Alluna's image field. At this point, the clouds only started to roll on in the evening, so the exposures were low.

Kefeuksen ja Joutsenen sumuja

21.3.2018 at 01.11 - 03.33 - Varkaus, Härkämäki (V)

After midnight, the Milky Way starts to stand out nicely and this time the northern lights were not disturbing either, so I had to try to describe the dark fog in the northern parts of Joutsenen with its surroundings. I have unofficially named that spider mist (the crab mist was busy) when it has that darker center from which those "legs" leave in every direction. It already looks a little dull to the naked eye.

Moon

16.3.2016 at 20.00 - Siilinjärvi (V)

The 61% Moon dipped again in the evening sky. Unlike the day before yesterday , seeing was just ok, probably due to a thin cloud cover.

Moon

21.1.2017 at 02.27 - Orimattila, Artjärvi, Tähtikallio (V)

Moon line for more than an hour. It would have been nice to be a friend the next night’s streak as well but didn’t succeed this time around.

Comments: 1 pcs

Moon

14.8.2017 at 23.11 - 23.38 - Siilinjärvi, Hamula (V)

23:07 the moon should have risen but the first contact with the horizon was only 23:11. Yes, it will rather change color and brightness as it rises. larger image: https://www.flickr.com/photos/jannefoo/36542342336/

Images: 2 pcs

Milky way

15.9.2020 at 00.00 - Siilinjärvi (V)

I went to take a revenge from an earlier Milky Way photo I took from the top of Parkkilanharju (observation # 67245). Now there was a tracking device and a longer lens, and there was nowhere near as much moisture in the air so the transparency was quite amazing. Barnard's E-fog was separated from the background sky with the naked eye, as was the large dark fog complex at the top of the Swan seemed to be revealed before the unseen clouds. Many kinds of pimples on it then at home from the pictures were revealed. Focus: not focused even though just before shooting with the focus mask I made s...

Comments: 4 pcs

M31 ja Linnunrata

24.9.2017 at 00.30 - 03.00 - Orimattila (V)

The harvest of the DS myth. A small panoramic view from the Andromeda galaxy towards the Milky Way. Larger annotated version: https://www.flickr.com/photos/jannefoo/37098895470/ #bongaalinnunrata

Starscape image

10.3.2016 at 20.34 - Siilinjärvi (V)

This picture was supposed to show well the zodiac light in that between the trees, but somewhere a fog popped up and the zodiac light disappeared in the same way I did. On the other hand, the fog itself looks pretty nice in a night scene.

Comments: 1 pcs

Search result contains observations from time period 1.1.2016 klo 00.00 - 07.12.2022 klo 16.10.