Comments on: Earth and moon as seen from Mars http://blogs.earthsky.org/deborahbyrd/space/0305113/earth-and-moon-as-seen-from-mars/ Science, nature, people, intelligence, hope ... sustainability. Mon, 12 May 2008 00:39:22 +0000 http://wordpress.org/?v=wordpress-mu-1.2.1 By: Pam Bayers http://blogs.earthsky.org/deborahbyrd/space/0305113/earth-and-moon-as-seen-from-mars/#comment-3955 Pam Bayers Wed, 02 Apr 2008 03:59:39 +0000 http://blogs.earthsky.org/deborahbyrd/space/0305113/earth-and-moon-as-seen-from-mars/#comment-3955 I love the earth and sky website. There is alot of info here. Thanks for putting it together. Pam Bayers I love the earth and sky website. There is alot of info here. Thanks for putting it together. Pam Bayers

]]> By: SSMRIKU http://blogs.earthsky.org/deborahbyrd/space/0305113/earth-and-moon-as-seen-from-mars/#comment-3873 SSMRIKU Mon, 17 Mar 2008 14:29:36 +0000 http://blogs.earthsky.org/deborahbyrd/space/0305113/earth-and-moon-as-seen-from-mars/#comment-3873 THESE IMAGES ARE VERY NICE.BUT I WONDER WHEN AND HOW CAN WE SEE MARS THESE IMAGES ARE VERY NICE.BUT I WONDER WHEN AND HOW CAN WE SEE MARS

]]> By: Bruce McClure http://blogs.earthsky.org/deborahbyrd/space/0305113/earth-and-moon-as-seen-from-mars/#comment-3845 Bruce McClure Wed, 12 Mar 2008 17:30:57 +0000 http://blogs.earthsky.org/deborahbyrd/space/0305113/earth-and-moon-as-seen-from-mars/#comment-3845 Tom, As Deborah states, the photo was taken on Oct. 3, 2007. Yes, the moon was in the vicinity of last quarter phase, at nearly 28 degrees north of the celestial equator. Therefore, all latitudes south of 62 degrees south latitude (90 - 28 = 62) could not see the moon, because the moon was below the horizon. On the other hand, at northern latitudes close to and north of the Arctic Circle, the moon stayed above the horizon for 24 hours a day, mimicking the Arctic midnight sun of summer! Bruce Tom,

As Deborah states, the photo was taken on Oct. 3, 2007. Yes, the moon was in the vicinity of last quarter phase, at nearly 28 degrees north of the celestial equator. Therefore, all latitudes south of 62 degrees south latitude (90 - 28 = 62) could not see the moon, because the moon was below the horizon. On the other hand, at northern latitudes close to and north of the Arctic Circle, the moon stayed above the horizon for 24 hours a day, mimicking the Arctic midnight sun of summer!

Bruce

]]> By: deborahbyrd http://blogs.earthsky.org/deborahbyrd/space/0305113/earth-and-moon-as-seen-from-mars/#comment-3811 deborahbyrd Mon, 10 Mar 2008 02:51:13 +0000 http://blogs.earthsky.org/deborahbyrd/space/0305113/earth-and-moon-as-seen-from-mars/#comment-3811 Tom, right you are. I hadn't noticed that word. Here's <a href="http://www.nasa.gov/mission_pages/MRO/multimedia/mro20080303earth.html" rel="nofollow">more information</a> about this image. Tom, right you are. I hadn’t noticed that word. Here’s more information about this image.

]]> By: Tom T http://blogs.earthsky.org/deborahbyrd/space/0305113/earth-and-moon-as-seen-from-mars/#comment-3810 Tom T Mon, 10 Mar 2008 01:39:50 +0000 http://blogs.earthsky.org/deborahbyrd/space/0305113/earth-and-moon-as-seen-from-mars/#comment-3810 Deborah: Thanks. I think it would be hard to jude that is why I asked but It certainly does not look like a full moon. On the other issue I quote from the original post "The moon image has been brightened relative to Earth for this composite." If it is not a composite, what does that sentence mean? Just wondering. Deborah: Thanks. I think it would be hard to jude that is why I asked but It certainly does not look like a full moon.

On the other issue I quote from the original post “The moon image has been brightened relative to Earth for this composite.” If it is not a composite, what does that sentence mean? Just wondering.

]]> By: deborahbyrd http://blogs.earthsky.org/deborahbyrd/space/0305113/earth-and-moon-as-seen-from-mars/#comment-3809 deborahbyrd Sun, 09 Mar 2008 21:34:55 +0000 http://blogs.earthsky.org/deborahbyrd/space/0305113/earth-and-moon-as-seen-from-mars/#comment-3809 Hello Tom, the image is enhanced but I don't <em>think</em> it's a composite. It's pretty tough to draw conclusions about angles and distances in space based on a snapshot like this. And in fact on the day this picture was taken - October 3, 2007 - the moon was in a <a href="http://www.earthsky.org/article/last-quarter" rel="nofollow">last quarter</a> phase. Distances in space are vast. So if the moon were truly in front of the Earth, with respect to the light source (the sun), the moon's distance from Earth would have to be be very small relative to the sizes of the Earth and moon. In fact, the moon's distance is very great relative to the sizes of the Earth and moon. When viewing this image, you have to realize the three-dimensionality of it ... and the fact that the moon is located farther away than Earth, in this image. Make sense? All best, Deborah Hello Tom, the image is enhanced but I don’t think it’s a composite.

It’s pretty tough to draw conclusions about angles and distances in space based on a snapshot like this. And in fact on the day this picture was taken - October 3, 2007 - the moon was in a last quarter phase. Distances in space are vast. So if the moon were truly in front of the Earth, with respect to the light source (the sun), the moon’s distance from Earth would have to be be very small relative to the sizes of the Earth and moon. In fact, the moon’s distance is very great relative to the sizes of the Earth and moon. When viewing this image, you have to realize the three-dimensionality of it … and the fact that the moon is located farther away than Earth, in this image.

Make sense?

All best,

Deborah

]]> By: Tom T http://blogs.earthsky.org/deborahbyrd/space/0305113/earth-and-moon-as-seen-from-mars/#comment-3808 Tom T Sun, 09 Mar 2008 19:50:07 +0000 http://blogs.earthsky.org/deborahbyrd/space/0305113/earth-and-moon-as-seen-from-mars/#comment-3808 Also It appears that the moon would not be visible from the Southern Hemisphere. Also It appears that the moon would not be visible from the Southern Hemisphere.

]]> By: Tom T http://blogs.earthsky.org/deborahbyrd/space/0305113/earth-and-moon-as-seen-from-mars/#comment-3806 Tom T Sun, 09 Mar 2008 14:55:42 +0000 http://blogs.earthsky.org/deborahbyrd/space/0305113/earth-and-moon-as-seen-from-mars/#comment-3806 Well it isn't really is it? It is a composite enhanced picture,right? But can one infer that the day these pictures were taken it was a new moon or close to it as seen from earth? Well it isn’t really is it? It is a composite enhanced picture,right? But can one infer that the day these pictures were taken it was a new moon or close to it as seen from earth?

]]> By: deborahbyrd http://blogs.earthsky.org/deborahbyrd/space/0305113/earth-and-moon-as-seen-from-mars/#comment-3790 deborahbyrd Thu, 06 Mar 2008 15:11:51 +0000 http://blogs.earthsky.org/deborahbyrd/space/0305113/earth-and-moon-as-seen-from-mars/#comment-3790 That is cool! Thanks! That is cool! Thanks!

]]> By: eimster http://blogs.earthsky.org/deborahbyrd/space/0305113/earth-and-moon-as-seen-from-mars/#comment-3789 eimster Thu, 06 Mar 2008 14:57:52 +0000 http://blogs.earthsky.org/deborahbyrd/space/0305113/earth-and-moon-as-seen-from-mars/#comment-3789 Here's a neat Earth & Sky show also about the view from Mars: <a href='http://www.earthsky.org/radioshows/45283/phobos-and-deimos' rel="nofollow">Phobos and Deimos as seen from Mars</a> Here’s a neat Earth & Sky show also about the view from Mars:

Phobos and Deimos as seen from Mars

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