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 Post subject: Pluto
PostPosted: Fri, 10-07-15, 16:40 GMT 
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https://www.nasa.gov/feature/pluto-and- ... ynamic-duo
:DD
Picture says a thousand words.
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 Post subject: Re: Pluto
PostPosted: Sat, 11-07-15, 1:56 GMT 
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UMSF has a rather LONG thread
page 26
http://www.unmannedspaceflight.com/inde ... 047&st=500

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 Post subject: Re: Pluto
PostPosted: Tue, 14-07-15, 16:09 GMT 
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Now this is looking really good.
https://www.nasa.gov/feature/new-horizo ... ig-heart-0
Released about 30 minutes ago.
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 Post subject: Re: Pluto
PostPosted: Wed, 15-07-15, 3:28 GMT 
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I've been following this for a while now; Very exciting! The early images are fascinating, I can't wait to see the hires images (willing to wait very patiently lol). I'm also anxious to hear the analysis of the spectral data, to make sense of all that interesting surface structure. Did any of you catch the live interview post-flyby on C-SPAN2? It sounded to me like the team lead let on that already they're looking to go back ... a lander or orbiter. Wondering if I'll be alive to see it lol.


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 Post subject: Re: Pluto
PostPosted: Wed, 15-07-15, 11:51 GMT 
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While we are waiting for the hires closeup imaging of the Pluto/Charon surfaces later today, I dug out my Pluto texture from Celestia 1.3.1, that I have committed in 2003-06-11, i.e. about 12 years ago!

It represented the first Pluto texture that relied on sophisticated earthbound measurements (Marc Buie et al.) rather than on phantasy. Here is the texture
Note: I transformed the texture from Celestia longitude convention (x-axis) to steadily increasing eastern longitude to match the conventions below!

Attachment:
pluto-lok.jpg
pluto-lok.jpg [ 29.14 KiB | Viewed 1894 times ]


What I find quite remarkable is how close the colors are in comparison to the latest shot from the New Horizonts spacecraft:
[click on image for a bigger display!]
Attachment:
2500.jpg
2500.jpg [ 107.08 KiB | Viewed 1895 times ]

https://www.nasa.gov/press-release/nasa ... -encounter

and notably in rectangular projection (July 8 2015) :
[click on image for a bigger display!]
Attachment:
nh-pluto-map.jpg
nh-pluto-map.jpg [ 159.08 KiB | Viewed 1895 times ]

https://www.nasa.gov/feature/new-horizo ... -the-donut
Credits: NASA-JHUAPL-SWRI

Of course celestia.Sci will be released with the latest Pluto texture from the New Horizons spacecraft... ;-)

Fridger

EDIT:
Just for fun, here is a quick screenshot in celestia.Sci, using the 808x404 pixel rectangular pluto texture above.
The grid lines are still shown for better orientation. In the top right corner, you may locate the very dark Charon...
[click on image and then on browser fullscreen (F11 for Firefox)!]
Attachment:
pluto_charon_Sci.jpg
pluto_charon_Sci.jpg [ 179.85 KiB | Viewed 1889 times ]

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 Post subject: Re: Pluto
PostPosted: Wed, 15-07-15, 15:03 GMT 
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I'm guessing that first image is the same Pluto texture in my Celestia v1.6 install? One of the first things I did yesterday (flyby day) was open Celestia and take another look at Pluto. That image wasn't too far off at all, all things considered.

The last image you posted is beautiful; It's actually my first look at Celestia.Sci. I really look forward to its release! I see in that image that Charon is still looking a bit greenish, and wondering how that will change with the new data as well.

I suppose shortly the IAU will release initial feature namings for Pluto (and Charon), as they've already done recently with Ceres. I was very happy for all my Georgian friends to see a feature named on Ceres for the ancient Georgian goddess "Zadeni".


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 Post subject: Re: Pluto
PostPosted: Wed, 15-07-15, 15:18 GMT 
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LordFerret wrote:
I'm guessing that first image is the same Pluto texture in my Celestia v1.6 install?


Yes, no changes after Celestia 1.3.1. In early summer of 2003, I just prepared and committed the Pluto texture.

There is also a later color estimate by Marc Buie that seems to be quite a bit off

Attachment:
figplcmap.png
figplcmap.png [ 122.44 KiB | Viewed 1829 times ]

http://www.boulder.swri.edu/~buie/pluto/hrcmap.html

Image
http://www.google.de/imgres?imgurl=http ... IOjM&hl=en

Fridger

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 Post subject: Re: Pluto
PostPosted: Sat, 18-07-15, 7:37 GMT 
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just some fun with a Shape from Shade height map of the close up from the other day and Blender
http://pluto.jhuapl.edu/Multimedia/Scie ... age_id=228
--
http://pluto.jhuapl.edu/Multimedia/Scie ... urface.png
--
Image

-- every image rotated 45 Degrees
Image Image Image Image Image Image Image Image

i think i am going to want to lower the camera

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 Post subject: Re: Pluto
PostPosted: Sat, 18-07-15, 11:27 GMT 
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I tried my best to make a surface map based on the NH picture, and here's the result.
This cannot be very accurate... I had thought I could get a better result with Mathematica, but I found that I had no idea about the programming work on pictures. I think I need help here.
So this is a work done on Photoshop and 3ds Max. It can be a bit fuzzy near the equator.
And... the rest part out of the NH picture is ALL-BLACK. Maybe I should do a little bit artwork.
Attachment:
pluto_nh_raw_2k.jpg
pluto_nh_raw_2k.jpg [ 175.85 KiB | Viewed 1801 times ]

By the way, I haven't been viewing the forum for months because of the College Entrance Exam. And now being accepted by Zhengjiang University seems to be no problem. The day is near. ;)

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 Post subject: Re: Pluto
PostPosted: Sat, 18-07-15, 11:48 GMT 
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Now the art work is done. Based on the "classical" pluto map by Björn Jónsson (this is probably the most common map of pluto, I always see this map in astronomy apps).
http://planetpixelemporium.com/pluto.html
Attachment:
pluto_nh_raw_2k_art_low.jpg
pluto_nh_raw_2k_art_low.jpg [ 471.41 KiB | Viewed 1798 times ]

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 Post subject: Re: Pluto
PostPosted: Sat, 18-07-15, 11:57 GMT 
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And here's the Charon...
Attachment:
charon_nh_raw_2k.jpg
charon_nh_raw_2k.jpg [ 465.52 KiB | Viewed 1796 times ]

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 Post subject: Re: Pluto
PostPosted: Sat, 18-07-15, 13:20 GMT 
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Oops,
I forgot to say one thing, the above maps correspond to the NASA map, i.e. with the meridian at the left. To use the above as a piece of texture, some more changes needed to be done.
And I did not do much on the coordinate transformation on the map of Charon. It's a quite simple expansion view.
Sorry.

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 Post subject: Re: Pluto
PostPosted: Sat, 18-07-15, 14:39 GMT 
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Celestial Phineas wrote:
Now the art work is done. Based on the "classical" pluto map by Björn Jónsson (this is probably the most common map of pluto, I always see this map in astronomy apps).
http://planetpixelemporium.com/pluto.html
Attachment:
pluto_nh_raw_2k_art_low.jpg


"Classical" map means here "pure phantasy". Björn Jónsson's map is actually a map of the Jupiter moon Ganymede ;-) We had it also as the first "Pluto map" in Celestia, before the above-mentioned long-time measurements by Marc Buie via Hubble became available in 2003...

Fridger
PS: you may read it yourself in your own link
http://planetpixelemporium.com/pluto.html

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 Post subject: Re: Pluto
PostPosted: Sat, 18-07-15, 14:58 GMT 
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http://pan.baidu.com/s/1eQFANz8
Full version. All images are in PNG format.
A success:
Attachment:
1.jpg
1.jpg [ 85.63 KiB | Viewed 1784 times ]

Attachment:
2.jpg
2.jpg [ 80.84 KiB | Viewed 1784 times ]

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 Post subject: Re: Pluto
PostPosted: Sat, 18-07-15, 15:12 GMT 
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t00fri wrote:
PS: you may read it yourself in your own link
http://planetpixelemporium.com/pluto.html

I didn't notice... I knew this map is not pluto, though. I didn't really know this comes out of Ganymede...
:oops: Sorry. So this is an unscientific hard work again...

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