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Contact information

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

Ursa Astronomical Association

M42 - 6.12.2015 at 04.13 Kajaani Observation number 46389

Visibility IV / V


In the morning, one square of the Orion M42, there are trees in the front and too low in my backyard.
Shooting adjusted white balance using white paper. Camera
Modified yourself by removing the ir cut filter, it is probably better to let it be white daylight.
Magic Lantern a good program for the camera, can adjust the exposure and let the camera shoot alone from the starry sky.



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Additional information
  • Observation target
    • Deep space object
  • Designation
    • M42
    • Näyttävä
  • Constellation
    • Orion
  • 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

TLAPO804-3, TSFlat2, Canon 650D mod, 1x30 ISO1600, Meade LDX 75, Ps.

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