KAGUYA - mission to the Moon

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RVS
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KAGUYA - mission to the Moon

Post #1by RVS » 01.10.2007, 11:35

The very first output :) :
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Post #2by ElChristou » 01.10.2007, 11:53

They say this is a High definition shot! I was expecting better... :?
Anyway another nice example of why we need HDR...
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Post #3by dirkpitt » 01.10.2007, 12:21

At least the resolution is "True HD(tm)" 1920x1080.
Anyway, yes there's a lot of noise obscuring the image (jpeg artifacts?) but you'll notice there're no stars visible due to exposure adjustment - "HDR" if you will.

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Post #4by t00fri » 01.10.2007, 12:33

Is the Earth really THAT uniformly blue as seen from such a distance??

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Post #5by ElChristou » 01.10.2007, 12:41

dirkpitt wrote:...Anyway, yes there's a lot of noise obscuring the image (jpeg artifacts?)...

Yep, seems a bad grab from my TV...

t00fri wrote:Is the Earth really THAT uniformly blue as seen from such a distance??


I was also wondering...
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Post #6by Fenerit » 01.10.2007, 15:50

I believe yes. And more blue toward the black more far is the distance, untill the color similar at that on the bottom of the sea. Just the clouds are clear.

EDIT LATER:

This is the reason of why the aliens can't find we. :wink:
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Post #7by Fenerit » 01.10.2007, 16:15

Just to attempt an explanation.
As for we on the shoreline the sea is more black at the high latitudes because the Sun's rays cast on diagonal rispect to the equator, from an observer in the space that rays cast on Earth with an obliquity which is pratically "perpendicular" (the observer see the Earth as disk), so they fade to black.
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Post #8by Hungry4info » 06.10.2007, 02:00

It's a very nice image in my opinion. No idea as to weather or not Earth is THAT blue, but still. I also liked the MESSENGER Earth images during it's flyby a few years ago.
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Post #9by buggs_moran » 06.10.2007, 17:44

ElChristou wrote:They say this is a High definition shot! I was expecting better... :?
Anyway another nice example of why we need HDR...


Maybe they are waiting to release the "good" images. HD images of the Earth and the moon could have some commercial value...
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Post #10by ajtribick » 06.10.2007, 18:17

Problem is that typical images from space are taken in filters designed to optimise science returns rather than provide "true colour" (and there's nothing wrong with that). Thus we may have an unrealistic expectation of the colouration.

Only people who really know are the Apollo astronauts. The famous Apollo 8 "Earth rise" image is quite blue, but I don't know what kind of camera was used for that.

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Post #11by dirkpitt » 11.10.2007, 11:12

Update: Selene has snapped its first photos of the moon.

http://www.jaxa.jp/press/2007/10/20071009_kaguya_e.html

Note that these are low-res shots of the probe jettisoning its relay satellites.
No hi-res data yet.

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Post #12by cartrite » 11.10.2007, 13:14

After some digging, I came up with this page which describes the different instruments on board. http://www.selene.jaxa.jp/en/equipment/lalt_e.htm
There isn't any details on the HDTV instrument's wavelength detectors so the color of the above image of earth is anyones guess. I suppose it depends on how the data was processed.
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Post #13by RVS » 07.11.2007, 15:33


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Post #14by Hungry4info » 07.11.2007, 15:59

Wow. I especially like the video; it looks just like that to me in Celestia (without the realistic shadows of course).
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Post #15by Reiko » 07.11.2007, 21:31

This is new wallpaper! :)

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Post #16by dirkpitt » 08.11.2007, 08:42

Awesome, now if only they could turn on the probe's real imaging equipment soon...

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Post #17by RVS » 06.12.2007, 14:51


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Post #18by cartrite » 06.12.2007, 15:49

RVS wrote:Kaguya Image Gallery was opened.

The 3d shots from the Terrain camera look promising.
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Post #19by RVS » 11.01.2008, 21:36


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Post #20by Hungry4info » 12.01.2008, 00:30

I'm going to guess it's a safe bet to say that this thread, and the MESSENGER thread have to do with astronomy. Any reason against moving them there?
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