OHM 90377 Sedna

[OrbitHangar]

Author: anroalh12

90377 Sedna is a large planetoid in the outer reaches of the Solar System that was, as of 2012, about three times as far from the Sun as Neptune. Spectroscopy ha s revealed that Sedna's surface composition is similar to that of some other trans-Neptunian objects, being largely a mixture of water, methane and nitrogen ices wi th tholins. Its surface is one of the reddest among Solar System objects. It is most likely a dwarf planet.

Sedna's orbit is between 80 and 170 AU from the Sun. It's perihelion will be reached around 2075–2076.

Update 1: New surface map texture.
Update 2: Epoch parameter corrected.
Update 3: Surface map's colour corrected.

By Anroalh12



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[Anroalh12]

Can you tell me if the surface map's level is ok or not?

 

[BrianJ]

Hi,
surface texture works fine, but it's VERY red on my installation(Orbiter2010-P1, Windows 8.1) but maybe it should be like that?

I'm not sure if the .cfg Epoch parameter is correct, I think you may need to convert from Julian to "year.decimal" e.g. 2010.55578370979.
Cheers
BrianJ

 

[Anroalh12]

Sorry. The epoch parameter is not correct. The surface is red because sedna's surface is unknown so I painted it red. The original surface map has got the same color as the moon's map. I can change it if you want.
Sorry for my english. I'm spanish.

 

[BrianJ]

Well, I don't know...I'd always imagined Sedna a bit darker and browner - but I'm not up to date on the latest science - there's probably some information on the web about it somewhere. Anyway, you should do it the way you think it should be.

BTW your English is fine.

 

[Anroalh12]

I've painted it red because I like the red colour. The colour of the planet in the mod's screenshot is the original, but I changed it because it is very similar to the moon and that can be repetitive.
I will change it tonight.

 

[jedidia]

I'd have called my daughter Sedna if I'd had one. I also like Redheads. Red Sedna is fine by me. :lol:

 

[Anroalh12]

There's an article on WIkipedia which says: "Its surface is one of the reddest among Solar System objects" so I'll keep Sedna's surface red. But of course I'll correct the epoch parameter.

 

[Nicholander]

I've imagined Sedna as being red, but not THIS red! I think it should be more closer to [ame="http://orbithangar.com/searchid.php?ID=610"]piper's Sedna mod[/ame].

 

[Anroalh12]

Ok. I'll change it to a "red-brown" colour. My idea was to make Sedna's surface like this:

 

[YODAFORCE]

The Sedna's orbit goes far beyond 170 AU according to recent estimates. It goes around 936 AU

The article also says that Sedna is nearly as red as Mars.

[ame="http://en.wikipedia.org/wiki/90377_Sedna"]90377 Sedna - Wikipedia, the free encyclopedia[/ame]

 

[Anroalh12]

Ok. The surface map now is red. All is corrected.