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'Color-Full Moon' of the astrophotographer Nicolas Lefaudeux.Nicolas Lefaudeux hdr-astrophotography.com
What color is the moon? Tonight it is the Harvest Moon, the full moon closest to the autumn equinox. For a few nights around Harvest Moon, our satellite illuminates the night sky after dark, making it easier for farmers to harvest after sunset, hence its name.
The Harvest Moon is no different from other Full Moon. It rises and sets in a pale orange color, like any other full moon (because we see its light through the thickest part of the Earth's atmosphere). It is a yellow-white orb when it is high in the sky.
As the Full Moon rises, it appears pale orange or yellow, but quickly becomes bright yellow-white.
However, the moon is not always gray, as shown in a photograph of Nicolas Lefaudeux (main image, top of page) recently named in the Insight Investment astronomy photographer of the year 2018. She represents the incredible colors and details of the Moon's surface that uses HDR techniques to extract a wide variety of shades and shades from the lunar surface.
How to photograph the moon in color
"It was taken from my balcony in Paris," says Lefaudeux of his image, a composite of 20 1/100 each, taken in January 2018. The final image shows remarkable colors on the moon, which we normally consider them monotonous. In fact, even if the colors are not strong, some clever techniques can discolor the colors.
So, how did Lefaudeux do it? He created an algorithm, that's how. "The algorithm was used to show the colors of the moon, but unlike a simple increase in saturation, the color enhancement applied depends on the magnitude of the details," he says. "For example, the boost of lunar mares [ancient ‘seas’ of lava formed by ancient volcanic eruptions] is lower than the crater elevation to avoid color on a large scale to hide the color characteristics on a smaller scale. To capture the images, he used a 100mm SkyWatcher Black Diamond apochromatic refractor telescope and a Sony ILCE-7S2 camera. Is this HDR? "The usual meaning of HDR is to improve hidden detail in large brightness ranges," he explains, explaining that "Color-Full Moon" enhances color detail hidden in other color details, giving blue and oranges.
Why is the moon blue and orange?
"Color variations are related to compositional variations, so crater colors depend on the composition of the impactor and the composition of the lunar terrain," explains Lefaudeux. Its algorithm accentuates the slight differences of gray tones on the moon of iron and titanium. "What's strange is that some craters have a color rim different from their center, so the" physics of impact "must play a role," says Lefaudeux. There are several other examples of the full moon in color online, especially of Russell Cromanand good tutorials of DataRescue and Photographing the space.
A total lunar eclipse or "blood moon" next to the Colosseum in Rome on July 27, 2018 (AP Photo / Gregorio Borgia)
What's a red moon or blood?
The "blood moon" is a phrase commonly used to describe a total lunar eclipse, when the Earth is precisely between the Sun and the Moon; When a full moon enters the Earth's shadow, the only light that reaches its surface has been refracted through the earth's atmosphere. Its entire visible surface is copper, orange or even slightly pink, with a slightly reddish color depending on the particles present in the atmosphere. At no time does this become "red like blood", but the name has remained.
What's a blue moon?
It's never blue. Despite the phrase "once in a blue moon", it refers to the second full moon of a calendar month, while astronomers refer to the rare occurrence of a third full moon in a four full moon season . Whatever the correct definition, at no time will the Moon turn blue … unless you start using HDR photography.
The Tycho crater – just below the plane – is a good example of where the moon appears white and not gray (Photo AP / Ted S. Warren)
How to see white on the moon
Although Lefaudeux's image is based on an algorithmic post-processing, it is possible to see very distinct white marks on the lunar surface with the naked eye. You just need to find some of the biggest craters of impact; Tycho, Aristarchus and Copernicus are three examples where the impact of meteors on the moon has created white rays of thousands of kilometers.
The capture of colors on the moon may depend on clever photographic techniques, but it shows that when you observe the stars or observe the moon, there is much more to see.
Wishing you a clear sky and big eyes
–
If you liked this article, you may also like these:
Here's how to see all eight planets in one night this week
The next ten nights are the best for stargazing in 2018
Missed The Perseids? Here's when and where to see the next big 2018 meteor shower
NASA is already preparing for the next American Eclipse in 2024. Here's where to go
Follow me on Twitter @jamieacarter, @TheNextEclipse or read my other Forbes articles via my profile page
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'Color-Full Moon' of the astrophotographer Nicolas Lefaudeux.Nicolas Lefaudeux hdr-astrophotography.com
What color is the moon? Tonight it is the Harvest Moon, the full moon closest to the autumn equinox. For a few nights around Harvest Moon, our satellite illuminates the night sky after dark, making it easier for farmers to harvest after sunset, hence its name.
The Harvest Moon is no different from other Full Moon. It rises and sets in a pale orange color, like any other full moon (because we see its light through the thickest part of the Earth's atmosphere). It is a yellow-white orb when it is high in the sky.
As the Full Moon rises, it appears pale orange or yellow, but quickly becomes bright yellow-white.
However, the moon is not always gray, as shown in a photograph of Nicolas Lefaudeux (main image, top of page) recently named in the Insight Investment astronomy photographer of the year 2018. She represents the incredible colors and details of the Moon's surface that uses HDR techniques to extract a wide variety of shades and shades from the lunar surface.
How to photograph the moon in color
"It was taken from my balcony in Paris," says Lefaudeux of his image, a composite of 20 1/100 each, taken in January 2018. The final image shows remarkable colors on the moon, which we normally consider them monotonous. In fact, even if the colors are not strong, some clever techniques can discolor the colors.
So, how did Lefaudeux do it? He created an algorithm, that's how. "The algorithm was used to show the colors of the moon, but unlike a simple increase in saturation, the color enhancement applied depends on the magnitude of the details," he says. "For example, the boost of lunar mares [ancient ‘seas’ of lava formed by ancient volcanic eruptions] is lower than the crater elevation to avoid color on a large scale to hide the color characteristics on a smaller scale. To capture the images, he used a 100mm SkyWatcher Black Diamond apochromatic refractor telescope and a Sony ILCE-7S2 camera. Is this HDR? "The usual meaning of HDR is to improve hidden detail in large brightness ranges," he explains, explaining that "Color-Full Moon" enhances color detail hidden in other color details, giving blue and oranges.
Why is the moon blue and orange?
"Color variations are related to compositional variations, so crater colors depend on the composition of the impactor and the composition of the lunar terrain," explains Lefaudeux. Its algorithm accentuates the slight differences of tones of iron and titanium. "What's strange is that some craters have a color rim different from their center, so the" physics of impact "must play a role," says Lefaudeux. There are several other examples of the full moon in color online, especially of Russell Cromanand good tutorials of DataRescue and Photographing the space.
A total lunar eclipse or "blood moon" next to the Colosseum in Rome on July 27, 2018 (AP Photo / Gregorio Borgia)
What's a red moon or blood?
The "blood moon" is a phrase commonly used to describe a total lunar eclipse, when the Earth is precisely between the Sun and the Moon; When a full moon enters the Earth's shadow, the only light that reaches its surface has been refracted through the earth's atmosphere. Its entire visible surface is copper, orange or even slightly pink, with a slightly reddish color depending on the particles present in the atmosphere. At no time does this become "red like blood", but the name has remained.
What's a blue moon?
It's never blue. Despite the phrase "once in a blue moon", it refers to the second full moon of a calendar month, while astronomers refer to the rare occurrence of a third full moon in a four full moon season . Whatever the correct definition, at no time will the Moon turn blue … unless you start using HDR photography.
The Tycho crater – just below the plane – is a good example of where the moon appears white and not gray (Photo AP / Ted S. Warren)
How to see white on the moon
Although Lefaudeux's image is based on an algorithmic post-processing, it is possible to see very distinct white marks on the lunar surface with the naked eye. You just need to find some of the biggest craters of impact; Tycho, Aristarchus and Copernicus are three examples where the impact of meteors on the moon has created white rays of thousands of kilometers.
The capture of colors on the moon may depend on clever photographic techniques, but it shows that when you observe the stars or observe the moon, there is much more to see.
Wishing you a clear sky and big eyes
–
If you liked this article, you may also like these:
Here's how to see all eight planets in one night this week
The next ten nights are the best for stargazing in 2018
Missed The Perseids? Here's when and where to see the next big 2018 meteor shower
NASA is already preparing for the next American Eclipse in 2024. Here's where to go
Follow me on Twitter @jamieacarter, @TheNextEclipse or read my other Forbes articles via my profile page
