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Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association

IC 342 - 25.1.2022 at 18.39 - 26.1.2022 at 02.35 Helsinki Observation number 104300

Visibility IV / V

Tero Hiekkalinna, Ursa (Helsinki)

IC 342 (The Hidden Galaxy) is located in the constellation Giraffe more than 10 million light-years from Earth. For the shooting, I used an Optolong L-PRO light pollution filter, which does not pass through e.g. the wavelength of light from street lights (sodium vapor lamps). The bright star (HIP 18067) shown in the picture at about 11 am belongs to our own Milky Way and is about 657 light-years from Earth. Exposure for a total of 7 hours and 15 minutes.

More similar observations
Additional information
  • Observation target
    • Deep space object
  • Designation
    • IC 342
  • Constellation
    • Camelopardalis
  • Galaxies
    • Spiral galaxy info

      Spiral galaxy is a stellar system where there are outwards arched spiral arms from roundish (spiral galaxies) or bar-shaped (barred spiral galaxies) central condensation.

      The apparent shape of spiral galaxied depends on out observation direction. From above they are quite round. From the side they lens-shaped with a bulge in the middle.

      Generally a rather large instrument, good weather conditions and observational expereince are needed to see spiral arms. Usually spiral galaxies look like a fuzzy spots.

      Spiral galaxy M33 in Triangulum. Image Tero Turunen.


      Andromeda Galaxy M31. There are also galaxies M110 (upper right corner) and M32 (lower left corner) in this image. Image Pekka Peura.

      M101 aka Pinwheel Galaxy in Ursa Major. Image Samuli Vuorinen.


      Spiral galaxy IC 342 aka Hidden Galaxy in Camelopardalis. Image Timo Inkinen.

      A sketch of spiral galaxy NGC 7331 in Pegasus. Image Juha Ojanperä.

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
Filter: Optolong L-PRO
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

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