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

Ursa Astronomical Association

10 observations and 1 comments in queue.

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

M44

21.3.2022 at 23.50 - 01.00 - Helsinki (I)
Tero Hiekkalinna, Ursa (Helsinki)

Praesepe, aka Messier 44, is an open constellation in the constellation Kravu about 600 light-years from Earth. This can be seen with the naked eye, albeit faintly in the light pollution of the city. Exposure for exactly one hour.

NGC 2174

21.3.2022 at 22.26 - 22.59 - Helsinki (IV)
Tero Hiekkalinna, Ursa (Helsinki)

NGC 2174 (The Monkey Head Nebula) is an emissum in the constellation of Orion and is located about 6,400 light-years from Earth. I used a narrowband filter for shooting and I used an experimental Hubble palette for image processing. Filmed over two days on March 21 and March 23. Light for 1h25min

IC 405

21.3.2022 at 20.08 - 22.04 - Helsinki (IV)
Tero Hiekkalinna, Ursa (Helsinki)

The flaming stellar nebula, or IC 405, is an emission and reflection nebula in the constellation of the Driver about 1,500 light-years from Earth. Exposure for a total of 5 hours and 20 minutes. I photographed this during fall 2021 and spring 2022.

M92

16.3.2022 at 23.01 - 00.10 - Helsinki (IV)
Tero Hiekkalinna, Ursa (Helsinki)

Messier 92 is a dense spherical constellation in the constellation of Hercules and is located about 27,000 light-years from Earth. It was discovered by the German astronomer Johann Bose in 1777. There are about 330,000 stars in the crowd. Exposure 2h

M38, NGC 1907

16.3.2022 at 21.33 - 22.32 - Helsinki (IV)
Tero Hiekkalinna, Ursa (Helsinki)

One of the last targets this spring was the open constellation Messier 38 and the second open constellation below it, NGC 1907. Messier 38 is located about 4,200 light-years and NGC 1907 about 4,500 light-years from Earth. The reddish mist on the right side is likely to belong to the Flaming Star Nebula (IC 405). Exposure for 1 hour and 15 minutes.

M45

16.3.2022 at 19.56 - 20.50 - Helsinki (I)
Tero Hiekkalinna, Ursa (Helsinki)

Screens, Pleiades, Subaru, Seven Siblings, Little Ottawa, and Messier 45. This bright and open-eyed constellation has many names. It is located in the constellation Taurus about 440 light-years from Earth. The image shows a reflection fog that reflects the blue light of the brightest stars. Exposure for 5 hours and 20 minutes.

M51

14.3.2022 at 21.30 - 00.05 - Helsinki (I)
Tero Hiekkalinna, Ursa (Helsinki)

The vortex galaxy, or Messier 51, and to its left, the companion galaxy NGC 5195, are located in the constellation of Hounds about 31 million light-years from Earth. It was discovered by the French astronomer Charles Messier in 1773. Exposure for 6 hours and 30 minutes.

M97, M108

3.3.2022 at 22.05 - 02.51 - Helsinki (IV)
Tero Hiekkalinna, Ursa (Helsinki)

The surfboard galaxy (Messier 108) and the Owl Nebula (Messier 97) are located in the constellation of the Big Bear. The distance of the galaxy from Earth is about 14 million light-years and the nebula about 2030 light-years. Exposure in this image for 8 hours and 50 minutes

M101

2.3.2022 at 22.37 - 02.30 - Helsinki (IV)
Tero Hiekkalinna, Ursa (Helsinki)

The windmill galaxy, or Messier 101, is located in the constellation of the Big Bear about 21 million light-years from Earth. It is estimated to have about 1,000 billion stars. Exposure for 7 hours and 55 minutes

M81, M82, NGC 3077

11.2.2022 at 19.19 - 05.41 - Helsinki (IV)
Tero Hiekkalinna, Ursa (Helsinki)

Galaxies visible! On the left the Boden Galaxy, on the right the Cigar Galaxy and on the top left the Garland Dwarf Galaxy. The Boden and Cigar Galaxies, discovered by the German astronomer Johann Elert Bode in 1774, are about 12 million light-years from Earth, and the Garland Galaxy is about 13 million light-years from Earth. I photographed this one night and the exposure came for a total of 8 hours and 40 minutes

IC 342

25.1.2022 at 18.39 - 02.35 - Helsinki (IV)
Tero Hiekkalinna, Ursa (Helsinki)

IC 342 (The Hidden Galaxy) is located in the constellation Giraffe more than 10 million light-years from Earth. For the shooting, I used an Optolong L-PRO light pollution filter, which does not pass through e.g. the wavelength of light from street lights (sodium vapor lamps). The bright star (HIP 18067) shown in the picture at about 11 am belongs to our own Milky Way and is about 657 light-years from Earth. Exposure for a total of 7 hours and 15 minutes.

Images: 2 pcs

IC 1396

21.11.2021 at 18.44 - 00.01 - Helsinki (IV)
Tero Hiekkalinna, Ursa (Helsinki)

The Elephant Snake Nebula (IC1396A) is located in the constellation of Cepheus about 2,400 light-years from Earth. In the first image, I tried to mimic the color world of the Hubble Space Telescope, the second comes through the Optolong L-eXtreme filter as is, and the third is a "close-up" of the tip. Exposure for 5 hours and 45 minutes.

Images: 3 pcs

IC 5070

8.11.2021 at 18.26 - 23.52 - Helsinki (IV)
Tero Hiekkalinna, Ursa (Helsinki)

The Pelican Nebula is located in the constellation of Swan about 1,500 light-years from Earth (There is a piece of North American nebula in the upper left corner). Exposure for 4 hours and 25 minutes

Images: 2 pcs

M33

7.11.2021 at 00.27 - 02.06 - Helsinki (IV)
Tero Hiekkalinna, Ursa (Helsinki)

Oh, it's nice to describe these galaxies too. I returned to the Triangle Galaxy for a long time and it is incredibly magnificent! I photographed this for two nights and the exposure for a total of 2 hours and 45 minutes.

NGC 7000

6.11.2021 at 18.37 - 21.34 - Helsinki (IV)
Tero Hiekkalinna, Ursa (Helsinki)

A piece of North American fog in the color world of the Hubble Space Telescope. Exposure for a total of 5 hours and 15 minutes. For shooting, I used an Optolong L-eXtreme narrowband filter and for image processing, PixInsight and tricks to make OSC data like a Hubble palette. There are several tutorials on the topic on YouTube. The second image is "more normal" and the third a close-up of Cygnus Wall. What is its official equivalent in Finnish?

Images: 3 pcs

NGC 1499

1.11.2021 at 22.09 - 03.49 - Helsinki (IV)
Tero Hiekkalinna, Ursa (Helsinki)

I had already dreamed of filming the California fog for a long time, and now I was filming it two nights when it happened to “peek” between the trees appropriately. Exposure for 4 hours and 25 minutes. For imaging, I used an Optolong L-eXtreme narrowband filter.

NGC 6960

2.10.2021 at 23.04 - 01.40 - Helsinki (IV)
Tero Hiekkalinna, Ursa (Helsinki)

The first target in October was the gauze mist and the upper part of the mist is the western gauze mist, i.e. NGC 6960. Exposure for 2 hours and 30 minutes.

IC 1795, IC 1805

2.10.2021 at 20.42 - 03.01 - Helsinki (IV)
Tero Hiekkalinna, Ursa (Helsinki)

Part of the Heart Nebula (IC 1805) and the Fishhead Nebula (IC 1795, bottom right), located in the constellation Cassiopeia about 7,500 light-years from Earth. I photographed this with an Optolong L-eXtreme narrowband filter and processed the second image in a way that mimics the color scheme of the famous Hubble Space Telescope. Exposure for exactly 3 hours.

Images: 2 pcs

NGC 6992

27.9.2021 at 23.35 - 02.06 - Helsinki (IV)
Tero Hiekkalinna, Ursa (Helsinki)

The third target of the fall was the Eastern Harsosumu, which I have not photographed before. In the description, I used a filter that passes only the emission lines of ionized hydrogen (H-alpha) and oxygen (Oxygen III). In the picture, red represents hydrogen and blue oxygen. Exposure for a total of 4 hours and 20 minutes.

M31

27.9.2021 at 22.10 - 23.14 - Helsinki (IV)
Tero Hiekkalinna, Ursa (Helsinki)

The second target of the fall filming season was the old classic, the Andromeda Galaxy. Exposure accumulated for a comfortable 4 hours and 5 minutes.

Comments: 1 pcs

Search result contains observations from time period 1.1.2000 klo 00.00 - 15.8.2022 klo 1.27.