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Ursa Astronomical Association
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00130 Helsinki

Ursa Astronomical Association

One halo form - 23.4.2013 at 00.02 Rautalampi Observation number 13747

Visibility I / V

Vesa Vauhkonen, Ursa (Itä-Suomi)

Weak 22 degree ring around the Moon. In the second picture, not so much a ring, but interesting looking wrinkled clouds. However, there are probably ordinary cumulus.

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Additional information
  • The halo was caused by lightsource:
    • Moonlight
  • Where are the ice crystals of the halo located?
    • Upper clouds
  • Yleiset halomuodot (kuunvalo)
    • 22° rengas
Technical information

Nikon D7000, Nikkor 10.5mm.

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