M31 - 3.10.2021 at 00.30 - 3.10.2021 at 02.00 Järvenpää Observation number 101709

Visibility IV / V

Eemil Pietilä, Ursa (Etelä-Suomi)

Once, when there were good conditions to photograph, of course I forgot to charge the travel charger, which uses the frost and moisture barrier. As a result (surprise surprise), the telescope lens misted when the battery ran out.

Well, that battery lasted an hour and a half, so here’s the Andromeda galaxy with a total exposure of an hour and a half. Given the circumstances, the image did come as a surprise, although more exposure would have been better.

This description has been automatically translated from Finnish. Click here to see the original text.

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Additional information

Observation target
- Deep space object
Designation
- M31
Constellation
- Andromeda

Weather
- Pellon pinnalla leijaili hento sumukerros ja sekin hälveni heti yhden jälkeen yöllä, jolloin myös lämpötila tippui lähelle nollaa. Tai ainakin maasta heijastui sen verran lämpöä, että paikat alkoivat huurtua
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

80 mm Orion ST80-A lens telescope, F400 mm, f / 5.0, Canon EOS 1200D (full Spectrum modulated), ISO 1600, 30 sec x 180, iOptron Skyguider Pro

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M31 - 3.10.2021 at 00.30 - 3.10.2021 at 02.00 Järvenpää Observation number 101709