M87, M86, M84, M89, M58, M90 - 16.3.2023 at 21.34 - 16.3.2023 at 23.05 Janakkala, Tervakoski Observation number 113521

Visibility III / V

Kuossari Petri, Riihimäen tähtit. yhdistys

A nice group of galaxies in the constellation Virgo fit into the image, not to mention the IC and NGC objects. I won't start to separate them here, you can look more closely at the second picture.

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Additional information

Observation target
- Deep space object
Designation
- M87, M86, M84, M89, M58, M90
Constellation
- Virgo
Darkness
- Good

Seeing
- Excellent
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.
- Elliptic galaxy
  
  Elliptic galaxy is an oval or roundish shaped distant stellar system, which have no spiral arms. These galaxies look as fuzzy spots with telescopes.
  
  The elliptic galaxy Centaurus A aka NGC 5128 in the middle of image is splitted by a dust lane. Image Toni Veikkolainen.
- Galaxy cluster
  
  In a galaxy cluster there are tens or hundreds of galaxies. Typically a moderate big instrument is needed to see galaxy clusters.
  
  The galaxy cluster Hickson 44 in Leo in composed of four galaxies. Image Timo Inkinen.
- Lenticular galaxy
  
  A lenticular galaxy is a type of galaxy intermediate between an elliptical and a spiral galaxy in galaxy morphological classification schemes

Technical information

Vaonis Vespera

558 images

Observation duration 1h 33min

Exposure 10s

Gain 20db

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M87, M86, M84, M89, M58, M90 - 16.3.2023 at 21.34 - 16.3.2023 at 23.05 Janakkala, Tervakoski Observation number 113521