Sedna

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Alex_x1

Sedna

Post #1by Alex_x1 » 16.03.2004, 02:26

http://spaceflightnow.com/news/n0403/15sedna/

so, is anybody making this add-on? ;)

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selden
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Post #2by selden » 16.03.2004, 02:55

It's in the "Physics and Astronomy" section.

http://216.231.48.101/forum/viewtopic.p ... edna#33695
Selden

jestr
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Post #3by jestr » 16.03.2004, 03:10

I have made a simple model,hires and medres texture and Grants ssc for Sedna (although I gave it a RotationPeriod also-not sure if this is right).At the moment you can only get it from my FTP server here
ftp://81.108.220.185
It may be slow going so I'll try to upload it to a different site later today,Tuesday,Jestr
Last edited by jestr on 09.06.2004, 00:59, edited 2 times in total.

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Post #4by jestr » 16.03.2004, 17:05

OK I have now put my Sedna addon on this site
http://jestrxtras.topcities.com/index.html
I couldnt upload the hires version of the texture so you'll have to get this from my FTP address above,Jestr

cpotting
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Using the Sedna addon

Post #5by cpotting » 18.03.2004, 15:52

jestr wrote:OK I have now put my Sedna addon on this site
http://jestrxtras.topcities.com/index.html
I couldnt upload the hires version of the texture so you'll have to get this from my FTP address above,Jestr


I have tried to obtain this addon, but Winzip 7.0 reports it as an incomplete zip file (as does Windows XP (with whatever extractor MS has written)).

I am stuck with Winzip 7.0 at work, but I could get something else for XP (my home machine). Any ideas as to what will work with this addon?
Clive Pottinger
Victoria, BC Canada

jestr
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Post #6by jestr » 18.03.2004, 16:03

cpotting try downloading it from here instead
ftp://celestia:addons@81.111.74.239
It should unzip normally enough,I am always getting problems with these free sites though-I will check next time Im allowed to go to this site,Jestr

cpotting
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Post #7by cpotting » 18.03.2004, 19:32

Thanks. I downloaded the individual files, instead of the zip. I'll try them tonight.

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Post #8by cpotting » 18.03.2004, 19:32

Thanks. I downloaded the individual files, instead of the zip. I'll try them tonight.

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Post #9by cpotting » 19.03.2004, 15:22

That worked.
Thanks again.

brunetto_64
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Post #10by brunetto_64 » 19.03.2004, 18:25

I have read that sedna is very red, second only at mars...
and probably has one satellite (because his rotation is slow...)
B. 8O

Rassilon
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Post #11by Rassilon » 20.03.2004, 02:19

Its a brown dwarf and it will consume us all!!!...Anyone for land in Montana?
I'm trying to teach the cavemen how to play scrabble, its uphill work. The only word they know is Uhh and they dont know how to spell it!

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Post #12by Dollan » 22.03.2004, 02:34

I suppose I'm doing something pretty stupid -- again... but I can't get this to work. Sedna shows up, and the model is there, but when I try to apply the texture, I just get a black body.

Help!

...John...
"To make an apple pie from scratch, you must first create the universe..."
--Carl Sagan

Guest

Post #13by Guest » 22.03.2004, 16:28

Jestr:

I have loaded Sedna and appreciate your great work. One suggestion! Sedna is a long way from the Sun and may be covered with a reddish or dark dust. Your model's texture looks much too bright and lit up. At a distance approaching the Oort cloud, would Sedna not be at least 50% darker?

Regards,

Frank

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selden
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Post #14by selden » 22.03.2004, 16:38

Frank,

Please read the "Preliminary User's FAQ" at the top of the "Users" forum,
in particular Q/A # 16: Why does the illumination level in Celestia not fall off the farther from the Sun I go - surely it should be very dark by the time I get to Pluto?

Also, my understanding is that Sedna seems to have a rather high albedo.
Selden

adamnieman
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Post #15by adamnieman » 22.03.2004, 17:51

Dollan wrote: Sedna shows up, and the model is there, but when I try to apply the texture, I just get a black body.

I get the same :? The med-res texture works fine, but when I switch to high-res it goes black.

Adam

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Post #16by Dollan » 22.03.2004, 18:18

With Selden's help, I figured out the problem. While I don't know what causes it, I went into PSP and resized the texture to 1048x512, and now it works fine on medium resolution.

...John...
"To make an apple pie from scratch, you must first create the universe..."
--Carl Sagan


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