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

Ursa Astronomical Association

NGC 7380 - 27.9.2021 at 21.00 - 27.9.2021 at 22.00 Hyvinkää Observation number 101698

Visibility II / V

Antti-Jussi Pyykkönen, Ursa (Etelä-Suomi)

I started filming Velhosumu in the fall of 2020. Filming was interrupted as the subject moved to zenith towards the end of the year. I waited impatiently for next year as the H-alpha areas were very spectacular. The result is a mosaic of two images so I got all the fog composed into the box.



More similar observations
Additional information
  • Observation target
    • Deep space object
  • Designation
    • NGC 7380
  • Constellation
    • Cepheus
  • 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

Celestron C925, Atik 460ex, CEM60, Baader ultranarrowband filters. 58x900s + RGB stars, about 15h exposure.

Comments: 4 pcs
Erik Pirtala - 3.10.2021 at 21.55 Report this

Parhaita kuvia velhohumusta, mitä olen koskaan nähnyt. Vaikuttavaa

Kiitos Erik!

Pekka Parviainen - 7.10.2021 at 01.52 Report this

Kuin Hubblen "luomisen pylväiden" baby-versio; upean terävästi etualan pilven muodot piirtyvät taustaa vasten. Taas kun hyppää omasta 135-millisen zoomatusta pikseloituneesta versiosta kuvasi maailmaan, saa hämmästellä taivaankannen rikkauksia ja voi skaalata maailmankaikkeutta aina vaan upeammaksi.

Kiitos Pekka mukavasta kommentista. Kuvaan myös lyhyellä polttovälillä ja onhan siinä puolensa, mutta kyllä se tuntuu hienolta saada kuvaan näitä yksityiskohtia H-alfasta ja pölypilvistä.

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