Contact information

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

Ursa Astronomical Association

IC 1805 - 5.9.2022 at 22.00 - 5.9.2022 at 23.59 Hyvinkää Observation number 109704

Visibility IV / V

Antti-Jussi Pyykkönen, Ursa (Etelä-Suomi)

I tried shooting a classic subject at a short focal length with a little APO, which I've kept on the shelf for far too long with other projects. For this picture, I also practiced JP Metsävainio's tone mapping technique and now I realized in practice what a wonderful process it is.



More similar observations
Additional information
  • Observation target
    • Deep space object
  • Designation
    • IC 1805
  • 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

TS 71mm quadruplet. Baader Ultra-Narrowband filters. 65x600s + RGB stars.

Comments: 2 pcs
Mikko Peussa - 2.10.2022 at 22.54 Report this

Upea kuva sydänsumusta ja hienoissa väreissä!

Kiitos palautteesta Mikko! 

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