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Ursa Astronomical Association
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00130 Helsinki

Ursa Astronomical Association

IC 1805 - 21.3.2015 at 23.00 Oulu Observation number 36701

Visibility V / V

The filming season has ended here at the height of Oulu, next time astronomical darkness will be obtained at the end of September.

The last filming project of the season is a high-resolution shot of Heart Nebula, IC 1805. It is a six-frame mosaic with an original resolution of more than 10,000 x 8,000 pixels. The resolution of the original is about one arc second / pixel. The total exposure time for the mosaic is 49 hours.

You can check out the higher resolution versions of my blog:


- Visual colors from emission channels, Ha, S-II and O-III
- Image of the HST palette
- Hydrogen emission alone, H-alpha
- Close up of the center of the fog in the Melotte 15 constellation
- A wide-ranging image, including his neighbor's Soul Nebula. IC 1848

More similar observations
Additional information
  • Observation target
    • Deep space object
  • Designation
    • IC 1805
    • Erittäin näyttävä
  • Constellation
    • Cassiopeia
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