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Waspie_Dwarf

Your Home Planet, as Seen From Mars

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Wow! - seeing the image of our Earth and moon...and taken from Mars....is simply amazing. These are good times to be living in - where space exploration is concerned.

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Gee that camera's powerful. You can see the mess in my garden...oh, sorry, I'll get it tidied up real soon!

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So cool.

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Absolutely stunning...

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Posted (edited)

They probably took the picture when the moon's orbit was taking it around behind or in front of the earth and so it appears closer to the earth than 30 diameters but they stated that the correct proportions and distance was shown implying that it was a straight shot from the side. 

~edit, reading it again, even that cNt be true. They said they processed both images independently before combining them to show the right proportions and distance. Obviously you can't put 30 earth diameters in that space, so something is wrong with the way they positioned the earth and moon in that picture. 

Here's one actually showing the distances and proportions that NASA claims theirs is. 

image.jpegThe distance on top is today, the distance on bottom is 4 billion years ago, so maybe NASA just used an "old" photo. Lol

Edited by Kiltedmusician

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Posted (edited)

49 minutes ago, Kiltedmusician said:

Good job. 

NASA wrote: "The combined view retains the correct positions and sizes of the two bodies relative to each other."
"The distance between Earth and the moon is about 30 times the diameter of Earth." 

 Look at the size of the earth in that picture and try to imagine 30 of them in the space between. Lol

Im not saying the picture is fake or something but someone's math isn't quite adding up here.

 An ounce of common sense is worth a pound of scientific literacy. Don't listen to these guys Lucas. Keep thinking for yourself. 

 

45 minutes ago, Kiltedmusician said:

They probably took the picture when the moon's orbit was taking it around behind or in front of the earth and so it appears closer to the earth than 30 diameters but they stated that the correct proportions and distance was shown implying that it was a straight shot from the side. 

~edit, reading it again, even that cNt be true. They said they processed both images independently before combining them to show the right proportions and distance. Obviously you can't put 30 earth diameters in that space, so something is wrong with the way they positioned the earth and moon in that picture. 

Here's one actually showing the distances and proportions that NASA claims theirs is. 

image.jpegThe distance on top is today, the distance on bottom is 4 billion years ago, so maybe NASA just used an "old" photo. Lol

You know, if you'd simply click on the NASA/JPL link you'd be able to read the entire explanation of how this image was made, that it is a combination of two separate images and why the two bodies appear so close together.  http://www.jpl.nasa.gov/news/news.php?release=2017-004

From the JPL article:

The image combines two separate exposures taken on Nov. 20, 2016, by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter. The images were taken to calibrate HiRISE data, since the reflectance of the moon's Earth-facing side is well known. For presentation, the exposures were processed separately to optimize detail visible on both Earth and the moon. The moon is much darker than Earth and would barely be visible if shown at the same brightness scale as Earth.

The combined view retains the correct positions and sizes of the two bodies relative to each other. The distance between Earth and the moon is about 30 times the diameter of Earth. Earth and the moon appear closer than they actually are in this image because the observation was planned for a time at which the moon was almost directly behind Earth, from Mars' point of view, to see the Earth-facing side of the moon. 

There, mystery solved, you're welcome.

On ‎1‎/‎6‎/‎2017 at 8:09 PM, Astra. said:

Wow! - seeing the image of our Earth and moon...and taken from Mars....is simply amazing. These are good times to be living in - where space exploration is concerned.

Not sure if you are aware but the red area near the middle of the earth is Australia.  Wave next time will ya!  :D

Edited by Merc14
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I'm not sure what is being debated...  from the NASA website they state:

"Earth and the moon appear closer than they actually are in this image because the observation was planned for a time at which the moon was almost directly behind Earth, from Mars' point of view, to see the Earth-facing side of the moon."

http://mars.nasa.gov/news/2017/mro-home-planet-as-seen-from-mars-hirise&s=4

 

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It is always a good idea to check what NASA says before making comments. NASA has a strong policy - and rightly so - of only doing things that are of scientific value. For example, Carl Sagan had quite a job persuading them to use the camera on Voyager 1 to take the "Family Portrait" of the planets, including the famous "Pale Blue Dot" of the Earth. So, I was wondering what scientific value there is in the image of the Earth and Moon. NASA point out that the imaging was taken as a calibration procedure for the camera. If the bi-product of that is to allow us to see our home planet and its moon, then that is fantastic.

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- Thread cleaned - 

All right folks... knock it off with the CT bickering and such please.... and just keep the the OP topic.

Rashore, moderating team

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The opening monologue to War of the Worlds springs to mind.

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What an awesome pic

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Seriously impressive picture. Just awesome.

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