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Galaxy M51

M51 aka The Whirlpool Galaxy is an spiral galaxy that is estimated to be 23 light-years from the Milky Way Galaxy in the constellation Canes Venatici. It is one of the most famous galaxies in the sky. The galaxy and its companion (NGC 5195) are easily observed by amateur astronomers. The Whirlpool Galaxy is also a popular target for professional astronomers, who study it to further understand galaxy structure (particularly structure associated with the spiral arms) and galaxy interactions. It was discovered on October 13, 1773 by Charles Messier and designated as M51. Its companion galaxy, NGC 5195, was discovered in 1781 by Pierre Méchain. It was however not until 1845 that the Whirlpool became the first to be recognized as a spiral. This was achieved by Lord Rosse.
astromarcin

Photo Details

  Telescope: Orion CT8 Newton(900mm)

  Camera: Sbig STL11000, Filter wheel, Baader 2" LRGB filters

  Mount: Takahashi NJP

  Guiding: Self-guided

  Exposure: LRGB ????

  When: April 2017

  Other information: good transparency, good seeing, Tylmanowa

 

astromarcin

Photo Details

  Telescope: Celestron C8N (1000mm)

  Camera: Sbig ST-2000XM, Sbig Filter wheel, Baader 1.25" HLRGB filters

  Mount: NJP Takahashi

  Guiding: Self-guided

  Exposure: L 20x600sec, R 5x480sec, G 5x480sec, B 5x480sec

  When: Spring 2010 and 2014

  Other information: very good transparency and seeing

 

astromarcin
astromarcin

Photo Details

  Telescope: FSQ106EDX (530 mm) Takahashi

  Camera: ST-8300M, Sbig Filter wheel, Baader 36mm round HLRGB filters

  Mount: NJP Takahashi

  Guiding: elf-guided, Orion ST80 with Orion SS Autoguider

  Exposure: LRGB 4h L 14x480sek + 20x180sek, R 10x480sek, G 10x480sek, B 10x480sek

  When: April/May 2012

  Other information: good transparency, very ood seeing, taken from city of Tarnow

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