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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.

Several halo forms

3.5.2021 at 16.13 - Rautalampi (II)
Vesa Vauhkonen, Sisä-Savon Ursa

I almost missed this play. View from Rämäkä.

Sun

1.5.2021 at 14.03 - Suonenjoki (III)
Vesa Vauhkonen, Sisä-Savon Ursa

The sun is again very passive today. Very weak minds, a hint of filament snippets.

One halo form

28.4.2021 at 14.40 - Suonenjoki (I)
Vesa Vauhkonen, Sisä-Savon Ursa

The basic hall is visible again. There was no real camera, the phone had to shoot.

Sun

22.4.2021 at 14.10 - 15.20 - Suonenjoki (III)
Vesa Vauhkonen, Sisä-Savon Ursa

The spring's first contact with the Sun with the H_Alpha tube. Slightly fairer protu at the top, weaker at the bottom. A weak filament (with this pressurization) was also visible below the upper brain. EDIT: Added third image.

Images: 3 pcs

Several halo forms

21.4.2021 at 14.50 - Suonenjoki (II)
Vesa Vauhkonen, Sisä-Savon Ursa

Basic ring in the sun.

Comments: 1 pcs

Moon

19.4.2021 at 21.44 - 22.15 - Rautalampi (III)
Vesa Vauhkonen, Sisä-Savon Ursa

The craze struck again. Had to try a phone camera using eyepiece magnification. Windless weather, no vibrations. Panorama of seven images stacked from about 2000 video frames. Terminator in follow-up, on the 'taste of slicing'. In the middle picture, the edge mountains of Ptolemy in the sun, the bottom in the dark.

Images: 3 pcs

M109

8.4.2021 at 23.43 - 01.19 - Rautalampi (II)
Vesa Vauhkonen, Sisä-Savon Ursa

Probably this rod spiral galaxy is one of the last DS targets of spring. Quite dim, but the high location made shooting a little easier.

Images: 2 pcs

M104

1.4.2021 at 00.34 - 01.19 - Rautalampi (I)
Vesa Vauhkonen, Sisä-Savon Ursa

A desperate attempt to portray Sombrero. The destination is very low even in the south. A short description window between the yard trees and the residential building.

M106

30.3.2021 at 23.03 - 00.58 - Rautalampi (II)
Vesa Vauhkonen, Sisä-Savon Ursa

Galaxy photography in too bright a moonlight and a hazy atmosphere. Programmatic light pollution filtering slightly improved the end result.

Images: 2 pcs

NGC 457

27.3.2021 at 22.00 - 00.05 - Rautalampi (II)
Vesa Vauhkonen, Sisä-Savon Ursa

'' ET '' photographed in a very bright moonlight, from a vacation of thin cloud rafts. Exposure approx. 2 hours in total. EDIT: A LITTLE CLEARER MORE.

M103

26.3.2021 at 21.42 - 23.06 - Rautalampi (II)
Vesa Vauhkonen, Sisä-Savon Ursa

You can also try to describe the star clusters in the moonlight. Otherwise the weather was pleasant, slightly frosty and hardly windy.

Moon

25.3.2021 at 19.30 - Suonenjoki (III)
Vesa Vauhkonen, Sisä-Savon Ursa

At the Tyyrinmäki observatory, in turn in the bouquet of the Moon. Moderate seeing. Known landforms (Rainbow Bay, Mare Humorum, Cassendi, Schickard, Schiller, etc.).

Images: 3 pcs

Moon

22.3.2021 at 19.30 - Rautalampi (IV)
Vesa Vauhkonen, Sisä-Savon Ursa

The high-rising crescent of the spring day's equalization. Tyyrinmäki Observatory. The craters of Plato, Archimedes, Autolycus and Aristillus in the north. The last three also with Barlow. Here we are already approaching the theoretical maximum magnification of the pipe. In addition, the rubbish southern terminator.

Images: 3 pcs

Moon

19.3.2021 at 19.40 - 20.20 - Suonenjoki (III)
Vesa Vauhkonen, Sisä-Savon Ursa

Inside the Ursa observatory in Sisä-Savo. The intention was to build an entire sickle mosaic, but cloud cover interrupted construction work. The video material was originally about 70 GB. 11 Mpix camera osaresolla (n. 2 Mpix). With a full resin, the entire sickle area would probably have produced several hundred gigabytes of material. But here, too, the original takes a pretty nice 'stretch'.

M45

17.3.2021 at 21.30 - 21.41 - Rautalampi (III)
Vesa Vauhkonen, Sisä-Savon Ursa

Now only a short description window opened for this encounter between Mars and Sifters. Exposure for only 10.5 minutes, 30 s in chunks.

IC 405

10.3.2021 at 22.07 - 23.57 - Rautalampi (II)
Vesa Vauhkonen, Sisä-Savon Ursa

The star blazed in near -22 degree frost. The equipment froze to freeze, even the photographer. The UHC filter helps significantly, at least in short overall exposures.

Images: 2 pcs

Caldwell 9

5.3.2021 at 21.34 - 23.52 - Rautalampi (I)
Vesa Vauhkonen, Sisä-Savon Ursa

A very difficult subject even for a moda camera: diffuse, low surface brightness. There was no UHC filter in use now. You still have to return to the destination with the filter, before the light pollution brought by the spring.

M81 ja M82

3.3.2021 at 22.02 - 23.48 - Rautalampi (III)
Vesa Vauhkonen, Sisä-Savon Ursa

These fit comfortably into a common portrait in a 1000 mm mirror tube. Seeing was moderate, and the Moon did not have time to disturb.

Comments: 1 pcs

M42

1.3.2021 at 20.50 - 22.30 - Rautalampi (III)
Vesa Vauhkonen, Sisä-Savon Ursa

Here is another interpretation of a familiar object. Attempted to apply HDR technology.

Moon

16.2.2021 at 17.55 - 18.05 - Rautalampi (III)
Vesa Vauhkonen, Sisä-Savon Ursa

Moon on the phone through the eyepiece. 6 partial images, each a stack of 10 images. With a good telecentre you get better at the touch of a button. But experimenting with ‘new’ technology is always interesting.

Search result contains observations from time period 1.1.2000 klo 00.00 - 6.5.2021 klo 21.45.