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Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association

NGC 7000, IC 5070 - 25.8.2019 at 00.00 - 25.8.2019 at 01.00 Rovaniemi Observation number 85106

Visibility V / V

Lauri Turunen, Corona Borealis, Rovaniemi

Finally and finally the astronomical twilight has reached the Arctic Circle and last night was a couple of hours of favorable conditions for the initial testing of the new optics. In the summer, William Optics' pretty red 250mm f / 4.9 RedCat lens and color-matching tracking engine and Red Dot were used. Because in Lapland, the sun shines day and night for half a year, and for the rest of the time there are either clouds, ice fog or northern lights interfering with the shooting, so attention will be paid to the appearance of the equipment when nothing else can;)

The target is the classic duo of the Swan constellation - P-America and Pelican Nebula, which fit well in the field. Pleasantly sharp optics also reproduce the stars on the very edge of the image. The Bahtinov mask that comes with the tube works great and the focus is done in seconds.

Overall, I am very happy with the purchase and I believe that thanks to its ease of use and mobility, this set will have a lot to describe!

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Additional information
  • Observation target
    • Deep space object
  • Designation
    • NGC 7000, IC 5070
    • Erittäin näyttävä
  • Constellation
    • Cygnus
  • Darkness
    • Good
  • Seeing
    • Good
  • 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

Optics: William Optics RedCat51 (250mm, f / 4.9) Camera: Canon 6D (astromod, Astronomik CLS-CCD filter) Tracking engine: iOptron SkyGuider Pro. Exposure: 103 x 30s (51min), ISO1600. Image processing: PixInsight, Lightroom.

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