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OT: Countdown to Pluto (7 days)

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  • cosmo71cosmo71 Posts: 3,609
    edited July 2015
    SpottedKitty said:
    cosmo71 said:

    well pluto okay, but what interests me the most is: have these gas planets like jupiter a solid core or is it all just gas? Well the gravity of jupiter is so huge it must have a solid core.

    Yes, there should be a very hot solid rocky (probably) core down in the middle somewhere, probably a few tens of times the size of Earth. On top of that is a deep "mantle" of hot liquid hydrogen so compressed it behaves like a metal. The thin layer on top, the last 10,000km or so (yes, Jupiter is that big), gradually becomes less liquidy and more gassy, and might be fairly transparent — can you imagine the view...? The very top layer, maybe no thicker than Earth's atmosphere, is where all the clouds and visible colour comes from.

    Yes, there's a lot of probablies there; we just don't know enough yet. The Juno mission scheduled to go into orbit this time next year should help nail down some numbers.

    I have heard of a theory whereupon Jupiter was a star at the beginning once that hasn`t reach the end of a stars evolution because of less mass

    Post edited by cosmo71 on
  • StratDragonStratDragon Posts: 3,273
    cosmo71 said:
    SpottedKitty said:
    cosmo71 said:

    well pluto okay, but what interests me the most is: have these gas planets like jupiter a solid core or is it all just gas? Well the gravity of jupiter is so huge it must have a solid core.

    Yes, there should be a very hot solid rocky (probably) core down in the middle somewhere, probably a few tens of times the size of Earth. On top of that is a deep "mantle" of hot liquid hydrogen so compressed it behaves like a metal. The thin layer on top, the last 10,000km or so (yes, Jupiter is that big), gradually becomes less liquidy and more gassy, and might be fairly transparent — can you imagine the view...? The very top layer, maybe no thicker than Earth's atmosphere, is where all the clouds and visible colour comes from.

    Yes, there's a lot of probablies there; we just don't know enough yet. The Juno mission scheduled to go into orbit this time next year should help nail down some numbers.

    I have heard of a theory whereupon Jupiter was a star at the beginning once that hasn`t reach the end of a stars evolution because of less mass

     

    I've read this theory also 

    http://www.universetoday.com/109593/could-jupiter-become-a-star/

     

  • SpottedKittySpottedKitty Posts: 7,232
    cosmo71 said:
    I have heard of a theory whereupon Jupiter was a star at the beginning once that hasn`t reach the end of a stars evolution because of less mass

    More like a "not quite there" star. We've found a few brown dwarfs now, star-like (as opposed to planet-like) objects that just aren't big enough for hydrogen fusion to start. They shine very dimly, only because they're still shrinking slowly and that creates a little heat. The smallest of them so far discovered is much bigger than Jupiter, although Jupiter does seem to have a similar "heat from shrinking" mechanism going on; it's just a little bit warmer than it should be.

  • MEC4DMEC4D Posts: 5,249
    edited July 2015

    http://www.nasa.gov/multimedia/nasatv/index.html

     

    watch now they show live new pictures of the moons and pluto 

    Post edited by MEC4D on
  • MEC4DMEC4D Posts: 5,249
    edited July 2015

    Pluto's mountains covered with ice ..H 11,000 Feet = 3,352.8 Meters = 3.3km no impact craters 

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  • larsmidnattlarsmidnatt Posts: 4,511

    looks good. too bad my inet is terrible today, can't watch video :(

  • ZarconDeeGrissomZarconDeeGrissom Posts: 5,414
    MEC4D said:

    http://www.nasa.gov/multimedia/nasatv/index.html

    watch now they show live new pictures of the moons and pluto 

    Thanks, Thanks. I got destracted. So I droped a core off of Studio, The vid looks good. And thoes pics as well. smiley

  • MEC4DMEC4D Posts: 5,249

    They suspect also water ice on the surface , very interesting news 

    larsmidnatt said:

    looks good. too bad my inet is terrible today, can't watch video :(

  • ZarconDeeGrissomZarconDeeGrissom Posts: 5,414
    edited July 2015

    oh, there sitting at the desk again, lol. Must be rehearsing or something. That or there is something missing in the audio, like the other end of the chat, again.

    (EDIT) Guess they just left the feed going while they were doing verius interviews, and promply pulled the feed at about the time of this post yesterday, lol.

    Post edited by ZarconDeeGrissom on
  • MEC4DMEC4D Posts: 5,249

  • ArtiniArtini Posts: 10,305

    Hope there will be more images available on the Nasa web site.

    I have just read, that there were taken more than 1200 pictures of Pluto.

     

  • larsmidnattlarsmidnatt Posts: 4,511

    pretty amazing feat they pulled off. Nothing but respect for the teams that worked on this. I can barely plan a day ahead.

  • ZarconDeeGrissomZarconDeeGrissom Posts: 5,414

    Thanks for the pics and links Mec4D.

    The other day, I had mentioned some random thoughts about internal heat in Pluto. I was merely thinking about some fuzzy features in one of the pictures from New Horizons. It had the distinct appearance of ripples or oozing flow of some kind filling preexisting features. Not to exclude other processes like weathering, tho it would all require some heat of some kind during the formation of the features, regardless of how long ago it happened. That's what I was thinking about, and was not completely aware of the full ramifications of what this was showing, lol.

    I simply assumed that what was visible for ring-like features (Craters, volcanoes, etc) was simply not all of them, due to the lack of fine detail in the photo. Still, regardless of when this surface was 'oozed over', the surface had to at least been wormed when it happened.

    I'm not going to speculate as to when, I'll leave that up to the team at JHUAPL. I'm simply fascinated by the amount of that area that all appears to have had a force of some kind going in one direction (or the opposite direction) at one time. It's the size of the area, along with the directionality of the features, that has me exclaiming “That is not like the moon”, lol.

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  • ZarconDeeGrissomZarconDeeGrissom Posts: 5,414
    edited July 2015

    Possibly, just possibly, really cool stuff to see. Epic is probably a better description. It was Live. Yes, same link Mec3d posted, see y'all there. smiley

    http://www.nasa.gov/multimedia/nasatv/index.html

    Also, looks like NASA has some 3D models of cool stuff, tho most of it is in a format for other programs, and probably won't work at all in Daz Studio without converting it in whatever program it was intended for. (Look closely at the file type before downloading them, some are useless to Studio users)

    http://nasa3d.arc.nasa.gov/models

    MEC4D said:

    http://www.nasa.gov/multimedia/nasatv/index.html

     

    watch now they show live new pictures of the moons and pluto 

    Nix is only 25 miles across (about 40km across). That is an incredible picture, given distances and craft speed!

    Post edited by ZarconDeeGrissom on
  • ZarconDeeGrissomZarconDeeGrissom Posts: 5,414
    edited July 2015

    The New horizons model is in "stl" format, whatever that is. I've been just looking threw and only grabbing the "OBJ" ones. I do have 'Blender' tho, I've yet to figure out that program, so I've collected just a few select "Blender Files" downloads from that NASA 3D model site.

    (EDIT)

    I just downloaded the New Horizons STL 'Zip', and when I tried to 'Extract' the zip, it crashed the windows file manager! I think the zip is either 'Encrypted' or corrupted. The other thirteen zips i tried, for other craft and a 'Hab' extracted fine.

    Add to that BAD zip file list, the SaturnV 3ds model zip file.

    Not all of the zip files are bad, here is a test render of the "Cassiopeia A" Supernova Remnant.

    (EDIT 20 JUL 2015) The New Horizons STL 'Zip', has been fixed. Thanks Steve.

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    Post edited by ZarconDeeGrissom on
  • MEC4DMEC4D Posts: 5,249

    STL is for 3D printing you can open it in Zbrush and convert to OBJ 

    ZarconDeeGrissom said:

    The New horizons model is in "stl" format, whatever that is. I've been just looking threw and only grabbing the "OBJ" ones. I do have 'Blender' tho, I've yet to figure out that program, so I've collected just a few select "Blender Files" downloads from that NASA 3D noodle site.

    (EDIT)

    I just downloaded the New Horizons STL 'Zip', and when I tried to 'Extract' the zip, it crashed the windows file manager! I think the zip is either 'Encrypted' or corrupted. The other thirteen zips i tried, for other craft and a 'Hab' extracted fine.

    Add to that BAD zip file list, the SaturnV 3ds model zip file.

    Not all of the zip files are bad, here is a test render of the "Cassiopeia A" Supernova Remnant.

  • MEC4DMEC4D Posts: 5,249

    I had no issues to unzip the New Horizons ZIP , looks like set for Mac ..the STL files does not load .. getting error in Zbrush ..the zip include parts to print it out in 3D and set together 

  • ZarconDeeGrissomZarconDeeGrissom Posts: 5,414
    edited July 2015
    MEC4D said:

    I had no issues to unzip the New Horizons ZIP , looks like set for Mac ..the STL files does not load .. getting error in Zbrush ..the zip include parts to print it out in 3D and set together 

    Them STL files get better as well. I found an online converter to turn them into OBJ files, so they would load in Studio. They load off at a -90 X rotation, and off-center. Then there is the UV mess, it only takes a single pixel of the texture map and smears it across everything. Both Gale Crater, and Valles Marineris are useless in this condition.

    The attached is supposed to be a 'Rock' texture, lol.

    (EDIT) nope, the New Horizons zip is still bustickated beyond recognition.

    "Very damaged, Zathras can never have any thing nice", lol.

    (EDIT 20 JUL 2015) The New Horizons STL 'Zip', has been fixed. Thanks Steve.

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    Post edited by ZarconDeeGrissom on
  • ZarconDeeGrissomZarconDeeGrissom Posts: 5,414
    edited July 2015

    I found one that works!!!!! surprise

    http://nasa3d.arc.nasa.gov/detail/pahrump-hills

    It even loads in the correct orientation, with the ground on the ground.

    yea, I added the attached rock texture to the one in the screen-cap. not included in the NASA zip. It's not the correct rock for Mars, tho the point is, it takes a map without spreading a single pixel all over everything.

    I added a bit of a red tint in the color box for the sky and rock in the attached render.

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    Post edited by ZarconDeeGrissom on
  • kyoto kidkyoto kid Posts: 41,847

    ...Blender can also import and convert .stl files.

  • ZarconDeeGrissomZarconDeeGrissom Posts: 5,414
    edited July 2015
    kyoto kid said:

    ...Blender can also import and convert .stl files.

    If I knew how to use it. I have a bunch of NASA models in Blender format I'd love to convert to Studio, that's just not going to happen this month.

    So for that Mars Pahrump Hills model, I'll just leave it on this note. A proper ground texture is going to take more time to bake up, then I have available in the foreseeable future. This one was an attempt of borrowing some ground from a Curiosity Rover image.

    Ground texture extracted from PIA17944-MarsCuriosityRover-AfterCrossingDingoGapSanddune NASA/JPL-Caltech/MSSS.

    (EDIT) well, as you dropped by with that cute redhead again, lol. One more slightly closer, with a bit more adjustment to the ground color and the sun color.

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    Post edited by ZarconDeeGrissom on
  • alexhcowleyalexhcowley Posts: 2,403
    edited July 2015

    For those of us in the United Kingdom: BBC 4 is broadcasting a Sky at Night special on Monday at 10:00 pm.  It's book-ended by a couple of Horizons on related subjects.

    Cheers,

    Alex.

    Post edited by alexhcowley on
  • ZarconDeeGrissomZarconDeeGrissom Posts: 5,414
    edited July 2015

    Shame I don't have BBC4 at my house, tho I do have many DVDs.

    NH model zip has been fixed, and now extracts fine in windows. smiley

    There is an online converter to turn STL files into OBJ, and it appears to be fussing with the UV mapping big time, lol.

    http://www.greentoken.de/onlineconv/

    Time for some coffee, and to look at options for the UV mapping.

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    Post edited by ZarconDeeGrissom on
  • ZarconDeeGrissomZarconDeeGrissom Posts: 5,414
    edited July 2015

    Did a quick approximation render to see what I am dealing with. The part placement of the three stl pieces is not exact, and I only crudely set the scale to something large enough to work with in Studio (it is NOT to actual scale).

    Comparing this to a photo, I see some areas on the 'Antenna' that are strikingly different (either STL-to-OBJ conversion glitches, or deliberate for 3D printing). Also some of the triangles are so thin that they are causing a horrid light reflection-angle anomaly off of the surface (the odd shadows). I have no idea if that geometry is from the conversion, or if the original STL has such Polygons to begin with (STL stuff is over my head, and well beyond my knowledge).

    Hmmm. (P.S. The emoticons for the new forum ****, and the Spell check is equally as bad. grrrrr)

    (EDIT) I just looked at the original model on the website, and it looks like the STL-to-OBJ thing faithfully converted the Polygons. It looks like most of the craft can be reproduced using Primitives and a few D-Forms (Except the dish), simply using the STL as a trace-paper of sorts. That has so many benefits (less polygons and individually mappable surfaces to start with), I'll think I'll give that a try later on tonight.

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    Post edited by ZarconDeeGrissom on
  • LeatherGryphonLeatherGryphon Posts: 12,084

    Fast forward through to Pluto system and beyond.

    http://www.nbcnews.com/science/space/nasa-shows-pluto-flyby-video-picks-next-destination-new-horizons-n418021

  • SpottedKittySpottedKitty Posts: 7,232

    A great video. I like the way the approach shows clearly that Charon doesn't just rotate around Pluto, they rotate around each other. Note that the original and much better quality movie in .mp4 format can be downloaded from the New Horizons site (click on the Multimedia link at top right).

  • LeatherGryphonLeatherGryphon Posts: 12,084

    Another month has passed and more images of Pluto have been downloaded and processed.  These are amazing.

    http://www.nasa.gov/feature/perplexing-pluto-new-snakeskin-image-and-more-from-new-horizons

  • larsmidnattlarsmidnatt Posts: 4,511

    That new snakeskin stuff is insane. Overwhelming even. Would have never imagined.

  • StratDragonStratDragon Posts: 3,273
    edited September 2015

    It looks like Klingon Bird of Prey crashed into the surface.

     

     

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    Post edited by StratDragon on
  • LeatherGryphonLeatherGryphon Posts: 12,084
    StratDragon said:

    It looks like Klingon Bird of Prey crashed into the surface.

    Shhhh..., it's supposed to be a secret. surprise

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