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Contact information

Skywarden,
Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki
taivaanvahti(at)ursa.fi

Ursa Astronomical Association

NGC 7331 - 15.9.2020 at 00.01 - 15.9.2020 at 04.15 Järvenpää Observation number 93674

Visibility II / V

Ari Jokinen, Etelä-Suomen kosmol. seura

The fine spiral galaxy of Pegasus NGC 7331 and its companions was described with a pure L (light) filter. The air was by no means very good (all-looking roar at the top) but to my surprise the end result was pretty good in the sense that even the weakest parts of the spirals can be seen. In this galaxy there was a supernova 2014 where you can find a picture of the observation of the Sky Guard at least from Rauno Päivinen on January 19, 2014



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Additional information
  • Observation target
    • Deep space object
  • Designation
    • NGC 7331
    • Heikosti näkyvä
  • Constellation
    • Pegasus
  • 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

SW Esprit 120ED, ATIK460Ex, 30x300s L filter

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