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Keywords: clouds, Venus, Moon
![Мимас - маленькая луна с большим кратером](https://images.astronet.ru/pubd/2005/10/10/0001208489/mimas_vg1_big.preview.jpg)
25.04.1999
Mimas is one of the smaller moons of Saturn but shows one of the largest impact craters. In fact, if the impact had been much greater, it would have disrupted the entire satellite. The large crater has been named Herschel after the 1789 discoverer of Mimas, Sir William Herschel.
![Луна через Триумфальную арку](https://images.astronet.ru/pubd/2023/04/26/0001896803/MoonArc_zanarello_960.preview.jpg)
26.04.2023
Was this a lucky shot? Although many amazing photographs are taken by someone who just happenedбto be in the right place at the right time, this image took skill and careful planning. First...
![Двойная лунная аналемма над Турцией](https://images.astronet.ru/pubd/2022/10/10/0001851844/LunarAnalemma_Turksoy_1080.preview.jpg)
10.10.2022
An analemma is that figure-8 curve you get when you mark the position of the Sun at the same time each day for one year. But the trick to imaging an analemma of the Moon is to wait bit longer.
![Четверти Луны](https://images.astronet.ru/pubd/2023/10/22/0001910520/quartermoon2022date.preview.jpeg)
21.10.2023
Half way between New Moon and Full Moon is the Moon's first quarter phase. That's a quarter of the way around its moonthly orbit. At the first quarter phase, half the Moon's visible side is illuminated by sunlight.
![Радужные облака над Альпами](https://images.astronet.ru/pubd/2003/10/14/0001194023/iridescent_esser.preview.jpg)
14.10.2003
Before the sun rose over the mountains, iridescent colors danced across the sky. The unexpected light show was caused by a batch of iridescent clouds, and captured on film in early September in Arolla, Wallis, Switzerland. The peak in the foreground of the above image is Aiguille de la Tsa.
![Дыра в облаке над Алабамой](https://images.astronet.ru/pubd/2004/01/12/0001196010/holecloud_knain.preview.jpg)
12.01.2004
What could create a huge hole the clouds? Such a hole, likely hundreds of meters across, was photographed last month from a driveway near Mobile, Alabama, USA. Very unusual to see, hole-punch clouds like this are still the topic of meteorological speculation. A leading hypothesis holds that the hole-punch cloud is caused by falling ice-crystals.
![Северное сияние над облаками](https://images.astronet.ru/pubd/2003/09/10/0001192898/auroraclouds_cantin.preview.jpg)
10.09.2003
Aurorae usually occur high above the clouds. The auroral glow is created when fast-moving particles ejected from the Sun impact air molecules high in the Earth's atmosphere. An oxygen molecule, for example, will glow in a green light when reacquiring an electron lost during a collision with a solar particle.
![Перламутровые облака над Лапландией](https://images.astronet.ru/pubd/2023/02/09/0001879356/PearlCloudDennis7_1024.preview.jpg)
9.02.2023
Vivid and lustrous, wafting iridescent waves of color wash across this skyscape from Kilpisjцrvi, Finland. Known as nacreous clouds or mother-of-pearl clouds, they are rare. But their unforgettable appearance was captured looking south at 69 degrees north latitude at sunset on January 24.
![Трубчатые облака над Небраской](https://images.astronet.ru/pubd/2023/02/12/0001880239/mammatus_olson_960.preview.jpg)
12.02.2023
When do cloud bottoms appear like bubbles? Normally, cloud bottoms are flat. This is because moist warm air that rises and cools will condense into water droplets at a specific temperature, which usually corresponds to a very specific height. As water droplets grow, an opaque cloud forms.
![Матрица лунации](https://images.astronet.ru/pubd/2022/10/02/0001850426/Lu20220729-0826_1050.preview.jpg)
1.10.2022
Observe the Moon every night and you'll see its visible sunlit portion gradually change. In phases progressing from New Moon to Full Moon to New Moon again, a lunar cycle or lunation is completed in about 29.5 days.
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