Populating WLM (and other galaxies) with REAL stars
- SpaceFanatic64
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Populating WLM (and other galaxies) with REAL stars
Oh. Well, in that case, try doing another version of your binary star catalog. The star Agena is missing the Agena B companion. Here are the ones I think you could try implementing: Rigel, Spica, and Antares.
If you see that I made a dumb or nonsensical post years ago, please forgive me in advance.
This add-on almost 1700 stars in the Carina Dwarf Spheroidal Galaxy (Carina dSph).
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- Lafuente_Astronomy
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LukeCEL wrote:Okay, I quickly put together some code using data from the Wikipedia article about it:
CODE: SELECT ALL
"MACS J1149 Lensed Star 1"
{
RA 177.3982917
Dec 22.3965
AppMag 29.9 # typical magnitude: was temporarily 28.4 during lensing event
SpectralType "B"
Distance 1.44e+10 # comoving distance
}
However, the star won't display because Celestia doesn't show stars that are over 10 million light years away. (See this thread for details.)
Is it possible to increase further the allowable distance for stars to exist in Celestia's Universe to around the mega-parsec range in Celestia 1.7.0? Or at least make a feature that enables stars in galaxies based on the user's current distance (Preferably around 10-100 million light-years) and disables stars beyond the range of the user until the user comes closer to the disabled stars, thus enabling them for the user to see?
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Lafuente_Astronomy wrote:Is it possible to increase further the allowable distance for stars to exist in Celestia's Universe to around the mega-parsec range in Celestia 1.7.0?
I think it is, but as discussed in this thread, it'll be hard to add more than a single star to a extremely distant galaxy, because the stars need lots of decimal digits of precision.
Lafuente_Astronomy wrote:Or at least make a feature that enables stars in galaxies based on the user's current distance (Preferably around 10-100 million light-years) and disables stars beyond the range of the user until the user comes closer to the disabled stars, thus enabling them for the user to see?
That I don't know, since I'm not a developer. You'll have to ask onetwothree for that.
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Lafuente_Astronomy wrote:Or at least make a feature that enables stars in galaxies based on the user's current distance (Preferably around 10-100 million light-years) and disables stars beyond the range of the user until the user comes closer to the disabled stars, thus enabling them for the user to see?
Not with the current code.
- Lafuente_Astronomy
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onetwothree wrote:Not with the current code.
Oh. But if I remember, Art Blos, with the help of Selden is doing something kinda like that: viewtopic.php?f=15&t=18638
Added after 5 minutes 22 seconds:
While it still basic and not complex enough, those are just baby steps, and I'm sure that eventually such a code could allow stars and even galaxies to appear and disappear depending on the user's location, saving some space that would be wasted by generating objects too far away. And perhaps if you want, there could be an option to modify how far would the user like to see objects, from a minimum of 10 million light years to anywhere in the mega parsecs level
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- Lafuente_Astronomy
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onetwothree wrote:Selden gave a good explanation in that thread why the same approach can't be used with stars and DSOs.
I may not have understood some of that but at least I got the gist of what he was saying. Actually, I'm thankful that people like you and Selden are keeping Celestia alive and kicking despite having lots of competitors like SpaceEngine, SkySafari, Stellarium, etc. So I say to you. keep up the good work!
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Art Blos wrote:Development is underway. Release as usual, April 30th.
Oh I can't wait! Also, since you added the Martian Rovers, are their places gonna be marked in the "Locations" file?
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- Lafuente_Astronomy
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Ahhh. It was just because they are now on the ground and thus, not considered spacecraft. But you're the boss.
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Kilo_SSK, here's toutatis' thread in question: viewtopic.php?f=23&t=18024&start=1080
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- Lafuente_Astronomy
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Kilo_SSK wrote:Great, thanks! The thread's already packed full of info, I'll read it through and through and see how many questions I still have afterwards?
Yep. Take your time. After all, there's lots of threads filled with information scattered throughout the Forum
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