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Contact information

Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association

Markarianin ketju - 3.3.2022 at 22.54 - 4.3.2022 at 06.00 Helsinki Observation number 106714

Visibility V / V

Otto Vehviläinen, Ursa (Etelä-Suomi)

At the turn of February-March, I photographed this object on four almost consecutive bright nights from Helsinki's Vallila home. I exposed the constellations of the Driver's constellation at night, but from midnight onwards this was the best where there was visibility. The data was collected the most from projects so far and as a reward it took about 26 hours to stack this on a computer.

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Additional information
  • Observation target
    • Deep space object
  • Designation
    • Markarianin ketju
  • Constellation
    • Virgo
  • Field of view
  • 3 degrees
  • Darkness
    • Bad
  • Galaxies
    • 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.

Technical information

William Optics Redcat 51 telescope, ASI2600MC Pro camera, Optolong UV / IR-cut filter, SkyWatcher AZ-EQ5GT tripod, Asiair Pro and full tracking.

510x120s exposures, total 17h.

Processing Pixinsight.

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