Celestia Forums

I konw this has been mentioned in other posts, but i couldn't seem to find it. i found a few pics incase anyone wants them.



Enough?

And one more suggestion, maybe there should be a little more "bulk" to the center of the galexy, like so:

I agree,
why cant galaxies have some more color. It seems realistic that when the number of stars becomes higher, that a certain change in color will occur around the center of the galaxy. I don't think changing the colors for the models is too hard to accomplish.

Don't forget though, that the colors you see on those photographs are caused by the film they used, so in reality they might not be so blue and orange.

"Might not"?

Most astronomical color photographs are "false color". They're either combinations of limited-bandwidth black-and-white photographs done to bring out the fetures that are being studied, or they've been enhanced for their entertainment value. Visually, the colors are much more subdued.

Of course, it'd be nice if Celestia provided a choice of presentation formats: visually accurate, enhanced for studying features and enhanced for entertainment.

The stars and Nebulae make up the galaxies color....I bet as soon as chris gets around to adding the possibility of more stars we will see a better more illuminated galaxy....Problem is it wont be seen for a while I bet....And well I suppose hes also tired of my constant prodding so I wont be asking him too

found a few more pics, and there of specific galaxies:


NGC 4945:

NGC 4013:

NGC 1512:

NGC 4650A:

NGC 253:

I have a question ?

In the photo of our galaxy (the one with "you are here" on it)
If that is our galaxy, and the furthest space probe we have out is Voyager.

How did we get that picture ?

Please don't flame me too hard, if this is a very silly question.
I honestly don't know.

Paul,

They just picked an HST picture of another galaxy (NGC4414) that looks something like what they thought our galaxy looks like.

See http://antwrp.gsfc.nasa.gov/apod/ap990609.html

I hope this clarifies things a little.

Ah thanks
So its not an actual picture of our galaxy.

Yeah it is actually...Its the new hyperspace enabled space probe Voyager 13 snapshot...No wait im in the 21st century...nevermind...

The Enterprise got it when they left our gallexy

The Enterprise got it when they left our galaxy

Heheh lol, no of course it's a different galaxy. We only have pictures of the galaxy taken from our location, so we can see the galaxy from the inside, you'd see a long band of stars with a blob somewhere around the middle. Nothing more. :) Also in celestia you know that you'd have to travel around 100,000 LY to see the galaxy as a whole. And the fact that we cannot even reacht the nearest star at under 4 ly says it all, i think.

When we make contact with aliens, that's the first thing I would ask for: their all-sky survey data. That way, I could get the darn galaxy positons right in galaxies.dat!

Cheers,
Paul

The other problem with that picture representing our galaxy is its the wrong type. That picture is of a standard spiral galaxy. Most astronomers are comming to the conclustion that our galaxy is a bared spiral instead. Which makes it one of the most intreguing types.

I head the same thing a wile back, unfortunately, most scientist still believe that the galaxy still has four arms to it, and that it only a slight bar, so the milky way ends up being somewhere between a bar and a spiral galaxy. I guess if you want to visualize it you would have two arms come to the same point in the spiral for one end of the bar. The may be an easy explanation for this event. The galaxy actually has two major black holes at the center, one major super massive back hole at the center, and another minor super black hole that orbits the larger one. This would cause a tidal effect to pull the matter in the arms into a bar. Sort of like the tidal effect of the moon on earths oceans. Weird huh?

Some of the astronomy picutres got false colours, actually, all colour picutres are taken in grayscale, and then added colours.
But most of these picutres is true colour, this goes for most picutres of galaxies and nebulas. True colour means the colour is like the one you would see if you where on an actual spaceship, viewing the galaxy with your own eyes.

So yes, it would be great if Celestia could have better and more realistic galaxy render system.


Stargazer.