Jestr,
There are many ongoing space missions and astronomical investigations. Both their detectors and their results that could be modelled in Celestia, I think.
As yet nobody has modelled any of the larger ground-based telescopes, for example.
A project to create a 3D model of what we know about the local interstellar medium might be interesting.
There always are plenty of pictures of deep space objects that could be translated into models or billboards. The Spitzer and Chandra telescopes have taken quite a few.
T00fri's Titan Flyby (03/31) Upgrade: DOWNLOAD NOW
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ElChristou
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The "local" region of the Milky Way within about 1500 LY has been studied by looking carefully at the spectral lines of nearby stars and nebulosities. Clouds of gas as well as "voids" have been detected.
Some 2D projections have appeared as the "Astronomy Picture of the Day". See
http://antwrp.gsfc.nasa.gov/apod/ap000411.html
and
http://antwrp.gsfc.nasa.gov/apod/ap000412.html
They were taken from the article from the article "The Galactic Environment of the Sun",by P.C. Frisch, in American Scientist, January-February, Volume 88, No. 1, 2000
The article is available at
http://www.americanscientist.org/templa ... 173/page/1
but you (or your organization's library) may need to subscribe to see it. (There was a publicly available copy at one time, but it seems to be gone.)
I think it would be fascinating if someone could create a 3D equivalent for Celestia.
Some 2D projections have appeared as the "Astronomy Picture of the Day". See
http://antwrp.gsfc.nasa.gov/apod/ap000411.html
and
http://antwrp.gsfc.nasa.gov/apod/ap000412.html
They were taken from the article from the article "The Galactic Environment of the Sun",by P.C. Frisch, in American Scientist, January-February, Volume 88, No. 1, 2000
The article is available at
http://www.americanscientist.org/templa ... 173/page/1
but you (or your organization's library) may need to subscribe to see it. (There was a publicly available copy at one time, but it seems to be gone.)
I think it would be fascinating if someone could create a 3D equivalent for Celestia.
Selden
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ElChristou
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Because the deep space objects are not depth sorted properly,there seems little point in making models of them,I have tried a few,based on some measurements and some guesses as to what these look like in 3d,but they always look miserable in Celestia because of the depth sorting problem.It would be nice also to model ,say Valles Marineris on Mars,but at the moment,it just messes up because you are inside the planet,Jestr
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ElChristou
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Unfortunately, Chris probably would be the right person to comment on how hard it really would be to get Nebula Mesh objects to be sorted properly. He's been out of contact for a while, though, distracted by other priorities.
It might help the development process if there were a model that presents useful information but which Celestia doesn't display properly.
It might help the development process if there were a model that presents useful information but which Celestia doesn't display properly.
Selden
I have had a go at modelling M27,a dumbbell nebula,but I see there is already Astroboys model of NGC 2392-Eskimo Nebula on the Motherlode,which doesnt render correctly-this is identical to the problems I have.If the simple shapes arent rendered right,it seems pointless to carry on and make more complex ones.It is also difficult to work on if you cant see them how they should look.Jestr
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Topic authort00fri - Developer
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Don't forget the next and /closest/ flyby ever of Titan in only two days from now. The closest distance will be 1025 Km. It will also include imaging up to 74 degrees North!
There is a very instructive description here:
http://saturn.jpl.nasa.gov/multimedia/products/pdfs/t5Flyby20050412a.pdf
That flyby on Saturday was also one main reason why I have delayed publishing my present Titan texture update including the hires flyby imaging of March 31st.
Perhaps, tonight, I shall decide on the spot to release my package nevertheless before Saturday. If I feel like it, it will be released tonight, although in some aspects I am not yet entirely happy. The main reason is that the "raw" imaging involves a really "hard" amount of image processing to get all the details manifest. This destroys to some extent, however, the pleasing visual impression.
Let's see ...
Bye Fridger
There is a very instructive description here:
http://saturn.jpl.nasa.gov/multimedia/products/pdfs/t5Flyby20050412a.pdf
That flyby on Saturday was also one main reason why I have delayed publishing my present Titan texture update including the hires flyby imaging of March 31st.
Perhaps, tonight, I shall decide on the spot to release my package nevertheless before Saturday. If I feel like it, it will be released tonight, although in some aspects I am not yet entirely happy. The main reason is that the "raw" imaging involves a really "hard" amount of image processing to get all the details manifest. This destroys to some extent, however, the pleasing visual impression.
Let's see ...
Bye Fridger
Last edited by t00fri on 14.04.2005, 20:45, edited 1 time in total.
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Topic authort00fri
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- Joined: 29.03.2002
- Age: 22
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- Location: Hamburg, Germany
Hi all,
OK, I decided to release my update due to the 03/31/05 Titan
flyby before the new data from the 04/16/05 flyby are
coming in.
++++++++++++++++++++++++++++++++
Here is the URL for download:
http://www.shatters.net/~t00fri/titan-033105.zip
++++++++++++++++++++++++++++++++
The present update features the latest hires imaging data
from the Titan flyby of March 31st. The mapped region
concerns the environment of the so-called "Lying H" east of
Xanadu.
The raw data are from a recent NASA hires mosaic:
http://photojournal.jpl.nasa.gov/catalog/PIA06222
Much effort was devoted to a precise cylindrical projection,
to carefully smoothing and blending the various individual
images in the mosaic and to a seamless integration of the
new imaging data into my previous Titan texture.
There was also a better modelling of the Titan atmosphere,
such that with Celestia nice views of the surface may be
obtained just below the lower boundary of the yellow haze,
i.e around 200 km of altitude.
Like this, for example:
Also the yellow haze layer has been modified to include an
alpha channel, such that Saturn may just be made out from
below the haze boundary (~ 200 km)
Finally, as in my previous Titan textures, coloration was done
by computer, using the natural color photo from the Huygens
landing site as a template
http://saturn.jpl.nasa.gov/multimedia/i ... ageID=1310
-------------
Installation:
-------------
My Titan texture provides a 4k view of Titan's surface.
The overall accuracy of the displayed features is excellent.
Just unzip the present titan.zip archive in your 'extras'
folder. Your default texture of Titan will then be modified automatically.
If you prefer more bumpmapping effects, just increase the
BumpHeight from 3.5 to 5-10 depending on taste in titan.ssc
in the titan add-on directory.
Enjoy,
Bye Fridger
OK, I decided to release my update due to the 03/31/05 Titan
flyby before the new data from the 04/16/05 flyby are
coming in.
++++++++++++++++++++++++++++++++
Here is the URL for download:
http://www.shatters.net/~t00fri/titan-033105.zip
++++++++++++++++++++++++++++++++
The present update features the latest hires imaging data
from the Titan flyby of March 31st. The mapped region
concerns the environment of the so-called "Lying H" east of
Xanadu.
The raw data are from a recent NASA hires mosaic:
http://photojournal.jpl.nasa.gov/catalog/PIA06222
Much effort was devoted to a precise cylindrical projection,
to carefully smoothing and blending the various individual
images in the mosaic and to a seamless integration of the
new imaging data into my previous Titan texture.
There was also a better modelling of the Titan atmosphere,
such that with Celestia nice views of the surface may be
obtained just below the lower boundary of the yellow haze,
i.e around 200 km of altitude.
Like this, for example:
Also the yellow haze layer has been modified to include an
alpha channel, such that Saturn may just be made out from
below the haze boundary (~ 200 km)
Finally, as in my previous Titan textures, coloration was done
by computer, using the natural color photo from the Huygens
landing site as a template
http://saturn.jpl.nasa.gov/multimedia/i ... ageID=1310
-------------
Installation:
-------------
My Titan texture provides a 4k view of Titan's surface.
The overall accuracy of the displayed features is excellent.
Just unzip the present titan.zip archive in your 'extras'
folder. Your default texture of Titan will then be modified automatically.
If you prefer more bumpmapping effects, just increase the
BumpHeight from 3.5 to 5-10 depending on taste in titan.ssc
in the titan add-on directory.
Enjoy,
Bye Fridger
-
ElChristou
- Developer
- Posts: 3776
- Joined: 04.02.2005
- With us: 19 years 9 months
-
ElChristou
- Developer
- Posts: 3776
- Joined: 04.02.2005
- With us: 19 years 9 months
-
ElChristou
- Developer
- Posts: 3776
- Joined: 04.02.2005
- With us: 19 years 9 months
jestr wrote:Selden,this local cloud,does it occur in all directions from Earth or is it mainly in the ecliptic?I think it would be difficult to model in 3ds,I could do something similar to the Scorpio nebulae though.Do you know of any more websites with info on this?Jestr
Jestr,
The 3D modeller I use allow to do "organic" volumes without problems, so if help needed...
