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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.

Sun

4.10.2022 at 11.18 - Tampere (III)
Tapio Lahtinen, Tampereen Ursa

Handsome polka dot group AR3112 twisting in the middle. We'll see if it produces repos for us.

Sun

23.9.2022 at 12.30 - Tampere (III)
Tapio Lahtinen, Tampereen Ursa

The new sunspots (AR3105-3107) came into view and today is the autumnal equinox. During the autumnal equinox, the aurora borealis tends to be more easily visible without any mentionable eruptions. Let's hope for clear nights.

Sun

9.9.2022 at 10.56 - Tampere (III)
Tapio Lahtinen, Tampereen Ursa

I photographed the sun again today, this time the other half than yesterday, because it looked like a flare was going on at the surface. Well, no miraculous activity was seen in the baby boy, so I can only see one static picture.

WR 134

8.9.2022 at 04.00 - Fregenal de la Sierra, Espanja (I)
Tapio Lahtinen, Tampereen Ursa

WR 134 is a variable Wolf-Rayet type star located about 6000 light years away. In the image, it is the brightest white star in the center of the image. The nebula around it (blueish in this picture) was formed when the star was in the red giant phase, when the outer layers have spread due to the star's strong radiation and stellar wind. WR-type stars are a very rare type of star. In 2018, only 154 of them were known in the Milky Way. The Crescent nebula has also been born under similar conditions.

Images: 2 pcs

Telescopic comet Kopff

8.9.2022 at 03.00 - Tampere (I)
Tapio Lahtinen, Tampereen Ursa

A dimming comet passing in the borderlands of Pisces and Vala.

Sun

7.9.2022 at 10.20 - Tampere (III)
Tapio Lahtinen, Tampereen Ursa

For once, I decided to try the PowerMate for solar photography. Well, the weather wasn't very good for it. A mosaic of two images.

Images: 2 pcs • Comments: 3 pcs

Sun

6.9.2022 at 13.58 - Tampere (III)
Tapio Lahtinen, Tampereen Ursa

There were fast clouds but I managed to take 1000 frame sets. This was the best of them.

Images: 2 pcs

Jupiter

4.9.2022 at 00.23 - Tampere (IV)
Tapio Lahtinen, Tampereen Ursa

The moderately good weather also continued when photographing Jupiter.

Saturn

3.9.2022 at 23.36 - Tampere (III)
Tapio Lahtinen, Tampereen Ursa

Quite a good weather and result considering that Saturn was about 12 degrees above the horizon.

Comments: 1 pcs

Jupiter

30.8.2022 at 02.03 - Tampere (IV)
Tapio Lahtinen, Tampereen Ursa

I hadn't expected such a clear night, so I focused on testing and planetary photography. At times the weather was exceptionally good in Finland, which produced a nice amount of details.

Sun

25.8.2022 at 12.15 - Tampere (III)
Tapio Lahtinen, Tampereen Ursa

A handsome roan at the edge of the sun again. The second image is a one-hour timelapse.

Images: 2 pcs • Comments: 2 pcs

Binocular comet PanSTARRS

18.8.2022 at 23.00 - 23.50 - Fregenal de la Sierra, Espanja (I)
Tapio Lahtinen, Tampereen Ursa

This comet had a handsome double tail (albeit with a fast tube under the African sky...). Well, I tried too, but it didn't work under the Spanish sky. Maybe too many stars and the half moon had an effect. I tried to make the view even better by removing the stars. Unfortunately, it's heading to a more southerly sky, so it could be that it was the last shooting opportunity.

Images: 3 pcs

At least 10 lightning strikes seen

18.8.2022 at 17.00 - Tampere (I)
Tapio Lahtinen, Tampereen Ursa

Surprisingly, a very lively cell hit Tampere when I was returning home from the movies. I had to be sheltered from the rain for quite a long time under Näsinstilto. It's a shame that the rolling shutter of the cell phone camera can't really capture lightning. I combined 2 consecutive frames of the LightningCamera application into the main image.

Images: 3 pcs • Comments: 3 pcs

Moon

15.8.2022 at 02.19 - Tampere (III)
Tapio Lahtinen, Tampereen Ursa

And then something different. I don't think anyone in Finland has tried this. On a foreign forum, I once read in a byline that the Ha solar tube could theoretically be used to photograph the moon as well. I doubted a little that when the filtering is so huge that it might be successful. Last night I finally got it into my head to try the theory and it worked. However, the exposure had to be in the order of a second and the gain was almost at zero. The end result of a stack of 100 pictures is this. You won't win prizes with this, but you can recognize the time of the moon very well.

Comments: 1 pcs

Jupiter

15.8.2022 at 01.23 - 01.57 - Tampere (IV)
Tapio Lahtinen, Tampereen Ursa

The next object of the night was Jupiter and the details were quite nice. In IR light, the view is slightly different than in 'standard light'.

Images: 2 pcs

Saturn

15.8.2022 at 01.16 - Tampere (III)
Tapio Lahtinen, Tampereen Ursa

This night was marked by testing and experimentation. One of the subjects of the test was a color camera that fell from the balcony of an apartment building. It still seems to work well and you can even see detail reasonably well (thanks to the IR filter to a large extent).

Telescopic comet ZTF

12.8.2022 at 01.30 - 02.00 - Fregenal de la Sierra, Espanja (II)
Tapio Lahtinen, Tampereen Ursa

I noticed online that this interesting comet has developed a tail, even though the distance to the sun is still more than 2.5 AU. So I photographed at night with a telephoto tube and indeed, despite the moon, I could see a tail over 4 arc minutes long. After the turn of the year, this comet should brighten even to the naked eye.

Jupiter

8.8.2022 at 02.15 - 03.00 - Tampere (III)
Tapio Lahtinen, Tampereen Ursa

I tried out the deep sky camera for Jupiter last night: Well, these CMOS cameras are reasonably suitable for both. The weather was mediocre, but the Red Dot was still visible. The big boys have seen some changes in it lately, but in this weather you couldn't really see the details. The idea was to take a longer animation, but since the weather was like this, I could only take a few frames (here are the 2 best).

Images: 2 pcs • Comments: 3 pcs

Jupiter

5.8.2022 at 01.50 - Tampere (III)
Tapio Lahtinen, Tampereen Ursa

When photographing Jupiter, the weather was a little worse than before when I photographed Saturn . As a bonus image, I tried to capture the M2 globular star cluster in EAA style. That is, 10 5-second exposures stacked (with FireCapture) and 6 of these. Total exposure 5 minutes. And without guidance (focal length approx. 2500 mm).

Images: 2 pcs

Saturn

5.8.2022 at 01.10 - Tampere (III)
Tapio Lahtinen, Tampereen Ursa

The start of the season last night. I checked the polar orientation (only a small adjustment) and collimation (no need to take action). At the end of the session, I decided to try to photograph the still low Saturn. However, it worked surprisingly well. In the second picture, the four brightest moons of Saturn.

Images: 2 pcs

Search result contains observations from time period 1.1.2000 klo 00.00 - 7.10.2022 klo 22.56.