NGC 4236 - 18.3.2020 at 20.23 Oulu Observation number 89259

Visibility II / V

Jaakko Asikainen, Oulun Arktos

The spiral galaxy NGC 4236 (Caldwell 3) is found in the constellation of the Dragon as part of the M81 set. It is about 22x7 arc minutes in size and about 10 in magnitude.

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Additional information

Observation target
- Deep space object
Designation
- NGC 4236
- Heikosti näkyvä
Constellation
- Draco

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

SW200P, QHY9m, NEQ6 Pro. 64x10min LRGB

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Contact information

NGC 4236 - 18.3.2020 at 20.23 Oulu Observation number 89259