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Ursa Astronomical Association
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Ursa Astronomical Association

M101 - 22.2.2017 at 04.20 Kirkkonummi Observation number 61652

Visibility IV / V

On the same night at Metsähovi radio research station as last picture (horse head fog). This time, a galaxy target whose outer branches had been awkward to get from the backyard to grab the cell.

More similar observations
Additional information
  • Observation target
    • Deep space object
  • Designation
    • M101
    • Näyttävä
  • Constellation
    • Ursa Major
  • 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

Skywatcher 200PDS - Nikon D7000 (ha modulated) - HEQ5 PRO - TS Comma equalizer - Orion Skyglow 2 "- Microsoft lifecam cinema (guide) - Sony Vaio T13 - 37x300s @ ISO 400 - 20x dark - 100x bias - 90x flat

Comments: 2 pcs
Juha Parvio - 3.3.2017 at 19.23 Report this

Leuka putosi juuri lattiaan :-) Upea kuva!

Olli Arkko - 3.3.2017 at 21.40 Report this

Kiitoksia kiitoksia Juhalle :)

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