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

Ursa Astronomical Association

M42 - 7.12.2021 at 23.00 - 8.12.2021 at 02.00 Järvenpää Observation number 103101

Visibility IV / V

Eemil Pietilä, Ursa (Etelä-Suomi)

Orion gas mist with approx. 3 hours exposure. This time I tried to edit the image in Pixinsight when I used to use Photoshop alone. The first experiment, at least in my opinion, was relatively good. Somehow I brought out more of that faint fog and the colors look kind of more dynamic too.



More similar observations
Additional information
  • Observation target
    • Deep space object
  • Designation
    • M42
  • Weather
    • Oli kylmää, mutta täysin selkeää. Ei pilven pilveä missään.

  • Nebulae
    • Emission nebula info

      In an emission nebula the hot stars nearby cause the gas glow. This should not mix with reflection nebula, where the gas is only lit up by nearby stars.

      The appearance of a gas nebula is irregular, and the fainter parts of it need bigger instruments to be visible.

       

      Emssion nebulae in Cepheus. The bigger part is composed of the nebulae Cederblad 214 (Ced214) and NGC 7822. The lower round nebula is called Sharpless 170 (Sh2-170). Image J-P Metsävainio.

       

      The Orion nebula. Image Samuli Vuorinen.

       

      In this 4-degree-field there are emission nebulae Sh2-157, Sh2-158, Sh2-159, Sh2-161 and Sh2-162 (or NGC 7635 aka Bubble Nebula) and open clusters M52 and NGC 7510. Image Juha Kepsu.

       

      NGC 281 aka Pacman Nebula. The object is in Cassiopeia. Image J-P Metsävainio.

       

      NGC 896 in Cassiopeia is the tip of Heart Nebula (IC 1805). Image Timo Inkinen.

Technical information

80 mm Orion ST80-A lens telescope, F 400 mm, f / 5.0, Canon EOS 1200D (full Spectrum), ISO 1600, 30 sec x 300, Optolong UV / IR Cut, iOptron Skyguider Pro

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