next generation of Sky in Google Earth

Roy Williams roy at
Thu Jan 17 06:45:50 PST 2008


I am also interested in using Google/WWT imagery to mashup as part of a 
VO application (Vim). What I would like is a cutout (~100 pixel) service 
that comes back fast with the color imagery for ~50 positions. I already 
have a cutout service that uses original FITS and accurate 
re-projection, but it is slow. And the Google API simply brings up a map 
browser, and I don't think I can make ~50 tiny map browsers all in bed 
together. What would be good is a service that simply returns a cutout 
or an image tile.


John Taylor wrote:
> Hi Pierre,
> I can give you a quick partial answer and get back to you with a 
> fuller answer when I've checked with the Sky team.  Firstly, you 
> already have VO access to the base imagery!  It's just DSS imagery 
> with SDSS blended in where we have it, and some Hubble on top of 
> that.  But you probably knew that.  The next way you can get access to 
> it for your own use is through the Google Maps API - it takes about 4 
> lines of javascript to put the maps on your own website.   As for 
> using this in Aladin, maybe someone could make use of it via Java 6's 
> ability to run javascript?  I'm just speculating here...I don't know 
> if it can be done.
> I'll get back to you with a fuller answer later Pierre,
> John
> On Jan 17, 2008 3:17 AM, Pierre Fernique <fernique at 
> <mailto:fernique at>> wrote:
>     Dear VO members,
>     I would like to bring the discussion to another point related to
>     the VO
>     and Google Sky/WWT.
>     I would like to ask to Google sky team and Microsoft WWT team if it is
>     possible to create my own client accessing their image data base. For
>     instance, if I want to add a dedicated Aladin layer displaying the
>     HTM
>     sky background images from Microsoft data base, or the sector base sky
>     background images from Google, could I ? 1) Is there open
>     standards for
>     that and I can develop my own client ? 2) Could I have to plug a
>     kind of
>     proprietary libraries in Aladin ? 3) Or perhaps it is not possible at
>     all (technically ? strategically ? no documented ?) Obviously, the
>     first
>     solution will be the best for my VO point of view.
>     I really appreciate to offer to Aladin users these astronomical data.
>     Exactly in a symetric way that WWT and Google Sky use Simbad opened
>     standards (object resolver, ...), or VizieR catalog access, and
>     other VO
>     access..
>     Pierre Fernique


California Institute of Technology
626 395 3670

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