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Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association

NGC 2371 - 7.11.2021 at 00.39 Orimattila, Artjärvi, Tähtikallio Observation number 102931

Visibility III / V

The program of the shooting night, which was finally interrupted by the clouds, also accommodated one DS subject photographed in color. In brightness, this cleverly shaped planetary nebula did not celebrate, but even the edge areas were still photographed.

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Additional information
  • Observation target
    • Deep space object
  • Designation
    • NGC 2371
  • Constellation
    • Gemini
  • Field of view
  • 28 arc minutes
  • Weather
    • Kuuton ja pilvinen yö, revontulia pohjoisessa

  • 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 11 x 120 s, with filters R, G and B all 6 x 120 s, 20 x dark, 12 x flat, 20 x bias, 3x binding limited

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