by APOD Robot » Mon Aug 19, 2019 4:12 am
Lenticular Clouds over Mount Etna
Explanation: What's happening above that volcano? Although
Mount Etna is seen erupting, the clouds are not related to the
eruption. They are
lenticular clouds formed when moist air is forced upwards near a mountain or
volcano. The surreal scene was captured by chance late last month when the astrophotographer went to Mount Etna, a
UNESCO World Heritage Site in
Sicily,
Italy, to photograph the conjunction between the Moon and the star
Aldebaran<a/>. The Moon appears in a bright <a href="ap130414.html">crescent phase, illuminating an edge of the lower lenticular cloud. Red hot
lava flows on the right. Besides some breathtaking stills, a companion
time-lapse video of the scene shows the
lenticular clouds forming and wavering as
stars trail far in the distance.
[url=https://apod.nasa.gov/apod/ap190819.html] [img]https://apod.nasa.gov/apod/calendar/S_190819.jpg[/img] [size=150]Lenticular Clouds over Mount Etna[/size][/url]
[b] Explanation: [/b] What's happening above that volcano? Although [url=https://en.wikipedia.org/wiki/Mount_Etna]Mount Etna[/url] is seen erupting, the clouds are not related to the [url=https://apod.nasa.gov/apod/ap170426.html]eruption[/url]. They are [url=https://apod.nasa.gov/apod/ap121104.html]lenticular clouds[/url] formed when moist air is forced upwards near a mountain or [url=https://www.youtube.com/watch?v=rznju2ivzfU]volcano[/url]. The surreal scene was captured by chance late last month when the astrophotographer went to Mount Etna, a [url=https://en.wikipedia.org/wiki/UNESCO]UNESCO[/url] [url=https://en.wikipedia.org/wiki/World_Heritage_Site]World Heritage Site[/url] in [url=https://en.wikipedia.org/wiki/Sicily]Sicily[/url], [url=https://en.wikipedia.org/wiki/Italy]Italy[/url], to photograph the conjunction between the Moon and the star [url=http://stars.astro.illinois.edu/sow/aldebaran.html]Aldebaran<a/>. The Moon appears in a bright <a href="ap130414.html">crescent phase[/url], illuminating an edge of the lower lenticular cloud. Red hot [url=https://apod.nasa.gov/apod/ap120402.html]lava flows[/url] on the right. Besides some breathtaking stills, a companion [url=https://youtu.be/04_OOLoJUdU]time-lapse video of the scene[/url] shows the [url=https://www.weather.gov/abq/features_acsl]lenticular clouds[/url] forming and wavering as [url=https://www.lightstalking.com/how-to-photograph-star-trails/]stars trail[/url] far in the distance.
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