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Contact information

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

Ursa Astronomical Association

M84, M86, NGC 4402, NGC 4388 - 27.3.2022 at 00.50 Orimattila, Artjärvi, Tähtikallio Observation number 106050

Visibility I / V


This image field does not need to be introduced to an experienced astronomer. The center of the virgin galaxy cluster only had to be brought to the cell under these conditions. It hadn't been photographed before with Tähtikallio's current camera.



More similar observations
Additional information
  • Observation target
    • Deep space object
  • Designation
    • M84, M86, NGC 4402, NGC 4388
  • Constellation
    • Virgo
  • Field of view
  • 37 arc minutes
  • Weather
    • Mahtavat olosuhteet kaikin puolin

  • Darkness
    • Excellent
  • Seeing
    • Excellent
  • Limiting magnitude
    • 6.5
  • 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.

    • Elliptic galaxy info

      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.

    • Active galaxy info

      The active galaxy OJ 287 in Cancer. This active galaxy includes the biggest known black hole. Image Arto Oksanen.

    • Galaxy cluster info

      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 info

       

      A lenticular galaxy is a type of galaxy intermediate between an elliptical and a spiral galaxy in galaxy morphological classification schemes

       

Technical information

Alluna RC16, C415 / 3320, Moravian G4-16000 EC Mark II, with filter L 11 x 120 s, with filters R, G and B all 6 x 120 s, 20 x bias, 20 x dark, 10 x flat, 3x binding, image slightly limited

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