Contact information

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

Ursa Astronomical Association

IC 1396 - 21.11.2021 at 18.44 - 22.11.2021 at 00.01 Helsinki Observation number 102501

Visibility IV / V

Tero Hiekkalinna, Ursa (Helsinki)

The Elephant Snake Nebula (IC1396A) is located in the constellation of Cepheus about 2,400 light-years from Earth. In the first image, I tried to mimic the color world of the Hubble Space Telescope, the second comes through the Optolong L-eXtreme filter as is, and the third is a "close-up" of the tip. Exposure for 5 hours and 45 minutes.



More similar observations
Additional information
  • Observation target
    • Deep space object
  • Designation
    • IC 1396
  • 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.

    • 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.

Technical information

Stand: iOptron CEM60
Recording tube and camera: Sky-Watcher 80ED pro-series + ZWO ASI071MC Pro
Tracking tube and camera: Orion ShortTube 80mm + ZWO ASI120MM mini
Polar Orientation Tube and Camera: Celestron 9 × 50 Viewfinder Telescope + ZWO ASI224MC (Polar Orientation with SharpCap Pro)
Sky camera: ZWO ASI120MC
Engine focus: ZWO EAF
As imaging software I use: NINA - Nighttime Imaging 'N' Astronomy 1.11, PHD2 and Cartes du Ciel.
Image Calibration, Stacking, and Processing: PixInsight 1.8

Send a comment

Comments are checked and moderated before publication If you want to contact the observer directly about possibilities to use these images, use the Media -form.

*

*

*
characters left

By sending in this comment I confirm, that I've read and understood the the observation system's privacy policy.