View of Earth and Jupiter from Mars

thttht
Posted:
in General Discussion edited January 2014
It's amazing how something always picks up my space cadet enthusiasm after being beaten down.





Earth, Moon, and Jupiter, as Seen From Mars



What does Earth look like when viewed from Mars? At 13:00 GMT on 8 May 2003, the Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) had an opportunity to find out. In addition, a fortuitous alignment of Earth and Jupiter---the first planetary conjunction viewed from another planet---permitted the MOC to acquire an image of both of these bodies and their larger satellites.



Earth as seen from the Mars Orbiter Camera:

Comments

  • Reply 1 of 14
    thuh freakthuh freak Posts: 2,664member
    reminds me of a bit of brian regan's jokes. kind of interesting. i'm surprised that nasa couldn't afford color cameras.
  • Reply 2 of 14
    aquafireaquafire Posts: 2,758member
    Is this really news ?
  • Reply 3 of 14
    enaena Posts: 667member
    Quote:

    Originally posted by aquafire

    Is this really news ?





    "...oh, the earth will be gone in just a few seconds----it obstructs my view of Venus"
  • Reply 4 of 14
    aquafireaquafire Posts: 2,758member
    Quote:

    Originally posted by ena

    "...oh, the earth will be gone in just a few seconds----it obstructs my view of Venus"



  • Reply 5 of 14
    buonrottobuonrotto Posts: 6,368member
    Man, I was at least hoping for a nice desktop.
  • Reply 6 of 14
    mac os x addictmac os x addict Posts: 322member
    Cool, but very hard to see.
  • Reply 7 of 14
    curiousuburbcuriousuburb Posts: 3,325member
    that's pretty sweet.



    maybe if the australians flick their lights again we could be a signal lamp sending pan-galactic morse



    Voyager 1 was tasked to shoot the view home as it left our neighbourhood

    the result is described as a Solar System Family Portrait

    alternative download/caption from APOD



    details of the Mars Global Surveyor MOC camera subsystem are here



    as for black&white -vs.- colour sensors, it's partly a matter of available technological capabilities (which curiously mimic some human capabilities)



    a nice intro to colour in the eye is here including footnotes on the evolution of colour vision and evolution of the eye (for those who frequent the evolution threads)



    clever interactive colour explanations [click R-G-B or C-M-Y-K] here



    colour CCDs are less sensitive than b&w due to alignment of sensor grid in filtered RGB where 50% green gets picked up, but only 25% red and blue



    Hubble is only grayscale, but a combination of wavelengths gets colourized
  • Reply 8 of 14
    sledgehammersledgehammer Posts: 505member
    quick exp. of color astrophotography:



    use a b&w ccd camera to take 4 pictures 1 each through a clear, a red, a blue, and a green filter. Then combine 'em (you can do it in PS). That's how all the color pics here were done.
  • Reply 9 of 14
    aquafireaquafire Posts: 2,758member
    Quote:

    Originally posted by curiousuburb

    .....maybe if the Australians flick their lights again we could be a signal lamp sending pan-galactic morse



    We did..ages ago..Via Parkes & Woomera....

    We sent the following:



    "dot dot dot........dot..........dash dot.........dash dot dot.......



    dash dash.......dash dash dash.......dot dash dot....dot.......



    dash dot dot dot.........dot.........dot......dot dash dot....."



    Reply received ...as follows.....













    :



    Order recieved by galactic bar..it's on its way mate !
  • Reply 10 of 14
    curiousuburbcuriousuburb Posts: 3,325member
    not bad...



    but IIRC, the critical signal in old school science fiction was:

    Code:

    --_.-_.-._..._/ _-._._._-.._..._/ _.--_---_--_._-.







    (where the / represents a word break and the underscore separates letters)
  • Reply 11 of 14
    thunderpoitthunderpoit Posts: 709member
    i think a combination of the two plus a little extra will work:



    Code:


    .-- . / -. . . -.. / .-- --- -- . -. --..-- / -... . . .-. --..-- / .- -. -.. / -- --- -. . -.-- .-.-.-



  • Reply 12 of 14
    curiousuburbcuriousuburb Posts: 3,325member 
    Code:


    .--_.-_.-._.--._/ _-.._.-._.._...-_._--..--_/ _..-._.-.._-.--_.._-._--._/ _-.-._.-_.-._..._/

    _.-_-._-.._/ _-._._.-_-_---_/ _--._.-_-.._--._._-_..._/ _.-.._.._-.-_._/ _...._.-_-._-.._/

    _.--._...._.-_..._._.-._..._/ _.-_.-.._..._---_/ _.-_-.-._-.-._._.--._-_._-.._







    edit: line breaks added to help page fit
  • Reply 13 of 14
    aquafireaquafire Posts: 2,758member
    Somehow I suspect that they be loking for more sophisticated signs of life.

    So maybe we should send .....
  • Reply 14 of 14
    aquafireaquafire Posts: 2,758member
    Or Even Better !!!!!
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