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Contact information

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

Ursa Astronomical Association

NGC 7009 - 4.9.2021 at 00.19 Orimattila, Artjärvi, Tähtikallio Observation number 101437

Visibility III / V


Saturn's fog remains quite low in Finland but is still descriptive. The protrusions protruding from the edges of the bright spherical center were a little confusingly even star-shaped.



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Additional information
  • Observation target
    • Deep space object
  • Designation
    • NGC 7009
  • Constellation
    • Aquarius
  • Field of view
  • 28 arc minutes
  • Weather
    • Hieman pilviä, hieman tuulta, Kuu horisontin alla

  • Darkness
    • Good
  • Seeing
    • Good
  • Limiting magnitude
    • 6
  • Nebulae
    • Planetary nebula info

      Planetary nebula is the remnant of a death star. It could be ring-shaped, disc-like or spread out rather irregularly.

      With the exception of some nearest objects planetary nebulae have a small apparent diameter and they need a rather big instrument to be visible.

       

      Planetary nebula M27 aka The Dumbbell Nebula in Vulpecula. Image Juha Parvio.

       

      M76 aka The Little Dumbbell Nebula in Perseus. Image Rauno Päivinen.

Technical information

Alluna RC16, C415 / 3320, Moravian G4-16000 EC Mark II, with filter L 10 x 120 s, 20 x bias, 20 x dark, 12 x flat, 3x binning, cropped image

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