IC 1805, IC 1848 - 3.12.2016 at 20.00 Helsinki Observation number 58670

Visibility III / V

Juha Parvio, Ursa (Helsinki)

After a break of more than a year, I was able to photograph the deep sky. Heart and soul mists were selected as targets because they are well suited for that UHC filter as emission mists. Without it, it is quite impossible to describe large-scale objects from Helsinki.

This description has been automatically translated from Finnish. Click here to see the original text.

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Additional information

Observation target
- Deep space object
Designation
- IC 1805, IC 1848
- Keskitaso
Constellation
- Cassiopeia

Weather
- Hyvin kirkas taivas, pikkupakkasta.
Nebulae
- Emission nebula
  
  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 EOS 1000D, EF 200 f / 2.8 L USM, JS stand, UHC-Eos clip filter, 62x3min = 3h 6min, ISO 800, DSS, Gimp

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Contact information

IC 1805, IC 1848 - 3.12.2016 at 20.00 Helsinki Observation number 58670