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Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association

NCC 281 - 6.11.2020 at 22.00 - 7.11.2020 at 00.00 Eura Observation number 94727

Visibility IV / V

Jarkko Suominen, Porin Karhunvartijat

There was little search for new locations and one was found at Eura Airport.

In the early evening there were some clouds in the sky, but they receded. However, there were no clouds in front of the subject during the whole shooting time and I was able to lighten Pacman's fog for a while quite calmly.

The image was already shot with a slightly old Atik 16IC CCD camera with a small Ed APO tube.

More similar observations
Additional information
  • Observation target
    • Deep space object
  • Designation
    • NCC 281
    • Näyttävä
  • Constellation
    • Cassiopeia
  • Weather
    • Kuu taivaalla
  • Darkness
    • Bad
  • Seeing
    • Average
  • Nebulae
    • Emission nebula info

      In an emission nebula the hot stars nearby cause the gas glow. This should not mix with reflection nebula, where the gas is only lit up by nearby stars.

      The appearance of a gas nebula is irregular, and the fainter parts of it need bigger instruments to be visible.


      Emssion nebulae in Cepheus. The bigger part is composed of the nebulae Cederblad 214 (Ced214) and NGC 7822. The lower round nebula is called Sharpless 170 (Sh2-170). Image J-P Metsävainio.


      The Orion nebula. Image Samuli Vuorinen.


      In this 4-degree-field there are emission nebulae Sh2-157, Sh2-158, Sh2-159, Sh2-161 and Sh2-162 (or NGC 7635 aka Bubble Nebula) and open clusters M52 and NGC 7510. Image Juha Kepsu.


      NGC 281 aka Pacman Nebula. The object is in Cassiopeia. Image J-P Metsävainio.


      NGC 896 in Cassiopeia is the tip of Heart Nebula (IC 1805). Image Timo Inkinen.

Technical information

TS-Optics Ed Apo 80/560 f7, Atik 16IC, Omegon SII 12nm (5x5min), Ha 12nm (5x5min) and OIII 12nm (5x5min), DARK x5, BIAS x5, FLAT x5.

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