M31 - 15.10.2014 at 20.15 Vaala Observation number 31041

Visibility III / V

Tero Hiekkalinna, Ursa (Helsinki)

In near complete darkness, I photographed the Milky Way, but at the same time decided to test the barn door tracking at a 70mm focal length into the Andromeda galaxy. It's okay!

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5 7

Additional information

Observation target
- Deep space object
Designation
- M31
- Keskitaso
Constellation
- Andromeda
Weather
- Pilvetön ja tyyni sää

Darkness
- Good
Seeing
- Good
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

Canon EOS 500D + Canon EF24-70mm @ 70mm f / 2.8L USM. F2.8, ISO3200, ladonovi tracking, 8x32s = 4min16s

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M31 - 15.10.2014 at 20.15 Vaala Observation number 31041