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Contact information

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

Ursa Astronomical Association

M42, Hevosenpääsumu, Liekkisumu - 27.2.2020 at 19.57 Uurainen Observation number 88677

Visibility IV / V


This subject could be exposed for three minutes, or even three hours. Here is the exposure for three seconds.



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Additional information
  • Observation target
    • Deep space object
  • Designation
    • M42, Hevosenpääsumu, Liekkisumu
    • Näyttävä
  • Nebulae
    • Dark nebula info

      Dark nebulae are dust in space. It obsruct the visibility of background star and bright nebulae. Thus, the dark nebulae are seen as dark clouds in space.

       

      The Horsehead Nebula is a dark nebula. Image Arto Murtovaara.

       

      The dark nebula LDN 1235 in Cepheus. Image Juha Kepsu.

       

      The dark nebula LDN 1302. Image Tero Turunen.

       

      The NGC 1333 is a reflection nebula, which includes also dark nebulae. Image Samuli Vuorinen.

    • 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

Canon 1DX and 200mm / 1.8 lens. ISO 25600. No monitoring.

Comments: 1 pcs
Tarja Hämäläinen - 22.3.2020 at 13.28 Report this

Orion näkyy upeana, en ole ennen tiennyt, että tuollainen  sumu on olemassa. Aina sitä uutta oppii

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