APOD: The ISS and a Colorful Moon (2015 Jul 31)

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APOD: The ISS and a Colorful Moon (2015 Jul 31)

Post by APOD Robot » Fri Jul 31, 2015 4:07 am

Image The ISS and a Colorful Moon

Explanation: Tonight's Full Moon, the second Full Moon in July, could be called a blue moon according to modern folklore. But this sharp and detailed mosaic, recorded with telescope and digital camera just before July's first Full Moon, actually does show a colorful lunar surface. The colors have been enhanced in the processed image but are real nonetheless, corresponding to real differences in the chemical makeup of the lunar surface. Also easy to see especially when the Moon is near full phase, bright rays from 85 kilometer wide Tycho crater at the upper right extend far across the lunar surface. Against the southern lunar highlands above and right of Tycho is an amazingly detailed silhouette of the International Space Station. Seen from Byron Bay, NSW Australia on June 30, the ISS lunar transit lasted about 1/3 of a second, captured with a fast shutter speed in burst mode.

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Re: APOD: The ISS and a Colorful Moon (2015 Jul 31)

Post by Nitpicker » Fri Jul 31, 2015 5:07 am

Magnificent image.

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Re: APOD: The ISS and a Colorful Moon (2015 Jul 31)

Post by Boomer12k » Fri Jul 31, 2015 6:50 am

Amazing...

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Re: APOD: The ISS and a Colorful Moon (2015 Jul 31)

Post by Animal of Stone » Fri Jul 31, 2015 10:10 am

Thank you for a beautiful image.The clear winter skies of 2015 in Australia have been a revelation, especially the dance between Venus and Jupiter.

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Re: APOD: The ISS and a Colorful Moon (2015 Jul 31)

Post by Coil_Smoke » Fri Jul 31, 2015 2:38 pm

Someone once said " It Has A Stark Beauty All It's Own " But that was like way back in the sixties, man... :lol2:

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Re: APOD: The ISS and a Colorful Moon (2015 Jul 31)

Post by What? » Fri Jul 31, 2015 2:51 pm

What?? ISIS has taken over the moon? Or just propaganda?

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Re: APOD: The ISS and a Colorful Moon (2015 Jul 31)

Post by LocalColor » Fri Jul 31, 2015 4:26 pm

Great photo, lots of detail. :)

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Re: APOD: The ISS and a Colorful Moon (2015 Jul 31)

Post by MarkBour » Fri Jul 31, 2015 4:50 pm

Beautiful image. You can almost make out the hole where they dug up that large black domino. :-)
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Re: APOD: The ISS and a Colorful Moon (2015 Jul 31)

Post by starsurfer » Fri Jul 31, 2015 5:16 pm

The moon this week has appeared yellow to me from my cloudy location in the UK.

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Re: APOD: The ISS and a Colorful Moon (2015 Jul 31)

Post by Jim Armstrong » Fri Jul 31, 2015 5:21 pm

Another great APOD!
i wonder if there is a greater visible sign of cataclysm in the solar system than the Tycho impact.

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Re: APOD: The ISS and a Colorful Moon (2015 Jul 31)

Post by ta152h0 » Fri Jul 31, 2015 5:32 pm

is it not " burst mode " the same as " movie frame " ?
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Re: APOD: The ISS and a Colorful Moon (2015 Jul 31)

Post by Chris Peterson » Fri Jul 31, 2015 9:49 pm

ta152h0 wrote:is it not " burst mode " the same as " movie frame " ?
No. In burst mode, the camera captures ordinary still frames at several per second (for a limited time- something like 25 raw frames at 7 frames per second before it has to stop and write to the memory card). Because these are normal frames, you get the full resolution of the sensor, raw data, and full control over exposure time. Video is lower resolution, lower dynamic range, has lossy compression, and doesn't allow you to control the exposure time (or not fully).
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Re: APOD: The ISS and a Colorful Moon (2015 Jul 31)

Post by ta152h0 » Fri Jul 31, 2015 10:25 pm

your answers always inspire more questions. Is that how NH captured the fleeting visit to Pluto ? My dad liked to answer questions with math problems. the lead eng at the Big Kite Kompany also liked to do that ( at what speed and angle do rudders start to be effective, for example )
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Re: APOD: The ISS and a Colorful Moon (2015 Jul 31)

Post by C0ppert0p » Sat Aug 01, 2015 12:02 am

There is a greenish/purple/red mottled appearance to the image that looks more like a processing effect than it does "natural color". The effect is more noticeable in the darker areas on the moon. It may be my monitor, so I'll reserve judgment. I see this sort of feature in over-processed Photoshop images

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Re: APOD: The ISS and a Colorful Moon (2015 Jul 31)

Post by Chris Peterson » Sat Aug 01, 2015 12:43 am

C0ppert0p wrote:There is a greenish/purple/red mottled appearance to the image that looks more like a processing effect than it does "natural color". The effect is more noticeable in the darker areas on the moon. It may be my monitor, so I'll reserve judgment. I see this sort of feature in over-processed Photoshop images
Certainly, the large boost in saturation required to bring out the natural color also creates color noise. There's no getting around that. Most processing produces artifacts. In this case, the artifacts are minor compared with the value of the processing. You simply can't trust the color at the pixel level. That doesn't mean it isn't showing useful information regionally.
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Re: APOD: The ISS and a Colorful Moon (2015 Jul 31)

Post by Coil_Smoke » Sat Aug 01, 2015 3:23 pm

Coil_Smoke wrote:Someone once said " It Has A Stark Beauty All It's Own " But that was like way back in the sixties, man... :lol2:
I have to follow up here. Because I am surprised no one else did. That 'Someone' was Neal Armstrong whilst walking on the moon ...
http://www.nasa.gov/mission_pages/LRO/n ... lo-11.html

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Re: APOD: The ISS and a Colorful Moon (2015 Jul 31)

Post by MarkBour » Mon Aug 03, 2015 6:52 pm

Jim Armstrong wrote:Another great APOD!
i wonder if there is a greater visible sign of cataclysm in the solar system than the Tycho impact.
Depends what you mean, I suppose. Some of the blasts on Mercury look worse to me. And then there's little Mimas, which, proportionately, shows perhaps one of the biggest splashes a body can exhibit. On the Earth itself, the Pacific Ocean basin might have been something very special indeed.
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Re: APOD: The ISS and a Colorful Moon (2015 Jul 31)

Post by ta152h0 » Mon Aug 03, 2015 8:53 pm

Ihink there is, between Mars and Jupiter
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Re: APOD: The ISS and a Colorful Moon (2015 Jul 31)

Post by Chris Peterson » Mon Aug 03, 2015 9:10 pm

ta152h0 wrote:Ihink there is, between Mars and Jupiter
Collisions in the asteroid belt aren't all that common, and generally aren't all that cataclysmic. The belt itself isn't a sign of any cataclysm, either.
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The ISS and a Colorful Moon

Post by spaceaman » Tue Aug 04, 2015 1:34 pm

The picture of the moon on 2015 July 31 is really a beautiful picture. Thousands of impact craters can be seen clearly in this picture. I was wondering, however, do we ever take any pictures of the impacts as they happen? Surely some impacts must have been observed and photographed over time.

If not for the Earth’s atmosphere, the Earth would be impacted very often. The moon, of course, has no protection and should have many impacts in each month.

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Re: The ISS and a Colorful Moon

Post by Chris Peterson » Tue Aug 04, 2015 3:45 pm

spaceaman wrote:The picture of the moon on 2015 July 31 is really a beautiful picture. Thousands of impact craters can be seen clearly in this picture. I was wondering, however, do we ever take any pictures of the impacts as they happen? Surely some impacts must have been observed and photographed over time.
Hundreds of impacts have been recorded on video, which is easy to do during any meteor shower where half or more of the Moon is in shadow. At least one of these produced a crater large enough to be seen by the LRO.
LROMarch_17_Animation.serendipityThumb.gif
The size of debris striking the Moon these days is generally too small to produce any new craters likely to be visible from the Earth. Virtually all the impact craters we see on the Moon were produced during the Late Heavy Bombardment, some 4 billion years ago.
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