Quote from: Steven Pietrobon on 12/17/2013 06:35 amHere are some snapshots taken during the descent about 30 or 15 seconds apart.Nice work.
Here are some snapshots taken during the descent about 30 or 15 seconds apart.
Are you able to put into just one image a scale showing size of a crater or distance between two craters?
Quote from: Steven Pietrobon on 12/17/2013 06:35 amHere are some snapshots taken during the descent about 30 or 15 seconds apart.Nice work.Are you able to put into just one image a scale showing size of a crater or distance between two craters?
Yeah... that's all fine.. but what I'm asking is: on what basis do we claim that the image carries more scientific information if it's colour corrected to "look like it would on Earth"
Personally I wish they would release the proper Mars environment coloured images as I much prefer seeing what Mars actually looks like.
Have you ever, for example, taken a digital image of an outdoor scene under overcast skies while your camera white balance setting was left on normal daylight and noticed it looks nothing like what your eyes see?
However there is only so much correcting the eyes/brain do.
Look at the RAW images before alteration and you will see a very different colouring - albeit perhaps a bit too rich.
Actually, the common descent stage was obvious from what the first concepts of the Chang'e 3 lander and Chang'e 5 sample-return mission were published. What is missing from the above is the Earth return stage which remains in selenocentric orbit.
To get back to Chang'e, I'm not that surprised the moon turned out brown. Every time I worked with spacecraft color imagery of the Moon, if I white-balanced it to the solar spectrum in vacuum, I got a similar brown color, whereas things like ice would turn out white. Same for Mercury.
QuoteTo get back to Chang'e, I'm not that surprised the moon turned out brown. Every time I worked with spacecraft color imagery of the Moon, if I white-balanced it to the solar spectrum in vacuum, I got a similar brown color, whereas things like ice would turn out white. Same for Mercury.To be honest not quite sure how you arrived at that as it doesn't gel with Apollo Hasselblad images.
There is a very crude illustration of the entire stack that was presented in a paper. The stack is pretty big. plutonogo may be able to post it.
Thanks to Steven Pietrobon and to this site http://target.lroc.asu.edu/q3/?mv=eqc&mcx=111055.01204&mcy=792434.77158&mz=16&ml=FTFB00TT# I was able to setup a Google Sketchup 3d model of Chang'e 3 landing site.http://win98.altervista.org/change3-google-earth.zip(Please don't embed huge images. Attach them please - Chris).
http://v.youku.com/v_show/id_XNjQ4OTUzMjY0.htmlFrom 9iflyhttp://bbs.9ifly.cn/thread-12967-1-1.htmlSorry, newbie here, don't know how to post a vid.
Here's one example of what the Moon looked like to the Deep Impact spacecraft while transiting Earth's disc: http://farm7.staticflickr.com/6143/5927214387_6f0e61e39f_o.gif