April 17, 2013
On the day you were born, another consciousness opened inside the cosmos and began taking notes.
Mt. Hood and a Lenticular Cloud
Birthday · April 17, 2013
A little universe, just for you
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APOD published April 17, 2013. Credit: Ben Canales. A publication-date match, not a photo taken on your date. Independent of NASA.
What kind of cloud is next to that mountain? A lenticular. This type of cloud forms in air that passes over a mountain, rises up again, and cools past the dew point -- so what molecular water carried in the air condenses into droplets. The layered nature of some lenticular clouds may make them appear, to some, as large alien spaceships. In this case, the mountain pictured is Mt. Hood located in Oregon, USA. Lenticular clouds can only form when conditions are right -- for example this is first time this astrophotographer has seen a lenticular cloud at night near Mt. Hood. The above image was taken in mid-March about two hours before dawn.
Image credit: Ben Canales