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Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association

IC1396 - 4.4.2021 at 00.00 Varkaus Observation number 97374

Visibility IV / V

Ville Miettinen, Warkauden Kassiopeia

I photographed this great object in the constellation of Cepheus for six nights from small clouds. The object is named Elephant's Trunk Nebula due to its appearance at wavelengths of visible light. The target only rises above the observation horizon after midnight at this time of year so it was difficult to get long series at a time. However, light accumulated for about 12 hours in the narrowband and one hour for RGB for the stars.

A larger image and a small information package can be found in my blog:

More similar observations
Additional information
  • Observation target
    • Deep space object
  • Designation
    • IC1396
    • Näyttävä
  • Constellation
    • Cepheus
  • Darkness
    • Good
  • Seeing
    • Average
  • 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

SkyWatcher Esprit 100mm f / 5.5 lens telescope, ZWO ASI1600MM-C, SkyWatcher EQ6 guided with ASI224MC color camera, TS Optics LRGB filters, Baader narrowband filters. Ha 60x300s, OIII 32x300s, SII 53x300s, R / G / B 10x120s. Total exposure time approx. 13h.

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