M101 - 27.2.2023 at 00.13 - 27.2.2023 at 01.30 Janakkala, Tervakoski Observation number 113113

Visibility III / V

Kuossari Petri, Riihimäen tähtit. yhdistys

In the glow of the aurora borealis, I tried to photograph objects in the deep sky, here the Windmill Gala of the Big Dipper constellation.

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Additional information

Observation target
- Deep space object
Designation
- M101
Constellation
- Ursa Major
Weather
- Revontulet valaisivat taivaan

Darkness
- Average
Seeing
- Average
Galaxies
- Spiral galaxy
  
  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

Vaonis Vespera

394 images

Exposure 10s

Gain 20 db

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M101 - 27.2.2023 at 00.13 - 27.2.2023 at 01.30 Janakkala, Tervakoski Observation number 113113