Where are Jupiter and Neptun's ring add-ons?

Star Lion · Post #1by **Star Lion** » 10.10.2003, 01:36

I am Looking for the Jupiter and Neptune rings addon, but I kant find them :cry:

Pleas help

ElPelado · Post #2by **ElPelado** » 10.10.2003, 01:48

look here http://www.la-guarida.com/Celestia/index_archivos/slide0001.htm its Praesepe's page.
Or look here:
http://arnaud.macron.free.fr/

Star Lion · Post #3by **Star Lion** » 10.10.2003, 02:19

thank you

I have jupiter rings but Neptune rings are down :cry:

Is there an alternet download site?

ElPelado · Post #4by **ElPelado** » 10.10.2003, 09:25

Here you have:
http://www.la-guarida.com/Celestia/Textures/NeptuneRings.zip

Dollard Desmarais · Post #5by **Dollard Desmarais** » 11.10.2003, 21:36

I am a newbie to both Celestia and this Forum. I have downloaded the zip files for both Jupiter and Neptune Rings from Praesepe's Page.
http://www.la-guarida.com/Celestia/inde ... de0001.htm
I have edited the solarsys.scc files for both and saved same. I have copied the png files to the hires, lores and medres folders (to be on the safe side). Still I do not see the Rings of Jupiter or Neptune. If I try to look at the png files with my Windows Picture and Fax viewer, I see two horizontal parallel lines across the screen, with nothing between the lines. Any suggestions?
My version of Celestia is 1.3.1pre11, my graphics card Intel Exreme Graphics Controller (64 MB memory), WinXP Home, 1.8 GHz Intel Celeron.
Have gone through all of Selden's Introduction to Add-ons with the help of Selden.

Post #6by **granthutchison** » 12.10.2003, 00:48

Dollard Desmarais wrote:If I try to look at the png files with my Windows Picture and Fax viewer, I see two horizontal parallel lines across the screen, with nothing between the lines.

That's about all you will see - the lines are actually the frame Picture and Fax Viewer puts around the image. The image itself is just a near-transparent grey stripe representing a transect of the rings.
Two possibilities occur to me:
1) The rings are very faint and you might miss them if the contrast on your monitor isn't set correctly.
2) Your edit to solarsys.ssc may have an error in it somewhere.

Try posting the relevant text from your solarsys.ssc here, and folk might be able to spot a problem.

Grant

Dollard Desmarais · Post #7by **Dollard Desmarais** » 12.10.2003, 01:29

My edits to the solarsys.scc:

# 2002 Jupiter Rings
{
Inner 9200
Outer 221000
Texture "jupiter-rings.png"
}

# 2003 Neptune Rings
{
Inner 41900
Outer 62983
Texture "neptune-rings.png"
}
I will try adjusting the contrast on my monitor, and clean my eyeglasses!

Dollard Desmarais · Post #8by **Dollard Desmarais** » 12.10.2003, 01:43

O.K. I think I see them on Neptune. Adjusting the ambient light helped some. As for Jupiter, I'll just have to keep looking. There are so many rings around Jupiter in the first place. And if the rings are quite faint, they must be very difficult to distinguish.

Post #9by **granthutchison** » 12.10.2003, 02:02

Dollard Desmarais wrote:My edits to the solarsys.scc:

Ah-ha. You need the word "Rings" in there as part of your definitions.

Code: Select all

# 2002 Jupiter Rings 
Rings { 
Inner 9200 
Outer 221000 
Texture "jupiter-rings.png" 
}

Code: Select all

# 2003 Neptune Rings 
Rings { 
Inner 41900 
Outer 62983 
Texture "neptune-rings.png" 
}

Grant

Dollard Desmarais · Post #10by **Dollard Desmarais** » 12.10.2003, 05:00

Grant,
Thank you for the help. I have made the corrections to my edit. Is this what I am supposed to see in Neptune, what appears like cloud streaks?

cel://Follow/Sol:Neptune/2003-10-12T04: ... f=514&lm=0

I don't know if I got this right?

Star Lion · Post #11by **Star Lion** » 12.10.2003, 05:13

Just Copy this for jupiter:
###############################################
"Jupiter" "Sol"
{
Texture "#put your textur here#"
HazeColor [ 0.4 0.45 0.5 ]
HazeDensity 0.3

Radius 71398
Oblateness 0.064

Rings {
Inner 92000
Outer 221000
Texture "jupiter-rings.png"
}

CustomOrbit "vsop87-jupiter"
EllipticalOrbit
{
Period 11.8622
SemiMajorAxis 5.2034
Eccentricity 0.0484
Inclination 1.3053
AscendingNode 100.556
LongOfPericenter 14.7539
MeanLongitude 34.404
}

RotationPeriod 9.927953 # System II (for GRS)
# RotationPeriod 9.92425 # System III (radio emissions)
Obliquity 2.222461 # 1.82246 # 2.22246
EquatorAscendingNode -22.203 # -1.87785 # -22.203
RotationOffset 16 # for correct location of GRS
# RotationOffset 305.40 # correct System III prime meridian

Albedo 0.51
}

###############################################

And this for Neptune:
###############################################
"Neptune" "Sol"
{
Texture "#put your textur here#"
Color [ 0.75 0.75 1.0 ]
HazeColor [ 0.6 1 0.75 ]
HazeDensity 0.35
Radius 25225
Oblateness 0.027

CustomOrbit "vsop87-neptune"
EllipticalOrbit
{
Period 164.793
SemiMajorAxis 30.0690
Eccentricity 0.0086
Inclination 1.7692
AscendingNode 131.722
LongOfPericenter 44.971
MeanLongitude 304.880
}

Rings
{
Inner 41900
Outer 62983
Texture "neptune-rings.png"
}

RotationPeriod 16.11 # System III (magnetic field)
Obliquity 28.03
EquatorAscendingNode 49.235
RotationOffset 228.65 # correct System III prime meridian

Albedo 0.62
}

###############################################
Dos this help?

JackHiggins · Post #12by **JackHiggins** » 12.10.2003, 11:50

A good way to view the Neptune rings is like so:

1. Goto & Follow the voyager 2 spacecraft
2. When you start getting near to neptune, "track" and zoom in on triton. (I mean adjust the FOV, not physically go to triton)
3. A few minutes (real time) before triton passes behind neptune, you will see two very faint streaks pass between you and neptune/triton. These are the rings. You may need to repeat this a number of times before you spot them!

Pictures of neptune had to be "overexposed" to show the rings in the first place, since they're so faint.

Post #13by **granthutchison** » 13.10.2003, 12:44

Dollard Desmarais wrote:Is this what I am supposed to see in Neptune, what appears like cloud streaks?

I'm not a great fan of using other people's cel urls, since I end up having to reset my defaults, but there isn't much point on this occasion - I'm going to see what's visible in my Celestia, not yours, so we'll be no further forward ...

I think if you're not convinced, the rings probably aren't there.
Couple more things:
1) Have you embedded the ring definitions within the planet definitions, as Star Lion shows?
2) I guess the "rings" you've already got around Jupiter are orbits - try simplifying the view by turning these off with the O key.

Grant

Dollard Desmarais · Post #14by **Dollard Desmarais** » 13.10.2003, 16:55

I finally see the rings on both Jupiter and Neptune. Thanks to all who have responded, Jack, Grant, Star Lion. What was I doing wrong? I really don't know. All I know is that I had messed up my Celestia file to a point where Neptune and Jupiter had disappeared from my Solar System Browser. Fortunately I had a backup. In starting over from scratch I guess I was able to avoid the mistakes I had done previously.

Celestia Forums

Where are Jupiter and Neptun's ring add-ons?

Where are Jupiter and Neptun's ring add-ons?

thank you but

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