Celestia Forums

I hover over the earth and set the velocity to the speed of light.
It takes over nine minutes to get to the sun. Am i doing something wrong?

Are you accelerating to the speed of light from 0 m/s? You're probably taking longer because you're doing part of the journey while accelerating to lightspeed, rather than starting *at* lightspeed.

That really nt that far off anyway. The Sun is 8 light minutes away. Isn't nice to know that if the Sun went out or exploded we would know nothing about for a whole 8 minutes.

8.3 minutes to be exact... Just enough time to make your peace with God... (just in case) hehe

But you wouldn't know it happened. By the time they saw the shock-wave or the lack of light that would be it. Hardly enough time if need to do that!

(9 - 8,3) / 8,3 is about 8%
what is the difference between the aphelium and perihelium of Earth? what if you measure the travelling time on different dates? for example in january and june.

Guest wrote:I hover over the earth and set the velocity to the speed of light.
It takes over nine minutes to get to the sun. Am i doing something wrong? :oops:

Are you accelerating to the speed of light from 0 m/s? You're probably taking longer because you're doing part of the journey while accelerating to lightspeed, rather than starting *at* lightspeed.


I am pressing f4 key I have tried several tiimes and it's always too slow. No big deal justy wondering if that was only happening
with me.

Yes, there is difference because the earth orbit is elliptic:

On Jun 25, Earth is at 1.017 AU from Sun.
On Sept 23, Earth is at 1.003 AU from Sun.
On Dec 21, Earth is at 0.984 AU from Sun.

So now we are the farthest from sun in the year cycle.

If you travel at LS, you travel almost 0.002 AU/sec (quick eye measure). It takes 8/9 seconds more to travel in June than in September. I measured in Celestia at Sept, 23 and it takes (from Earth's orbit) exactly 8' 21" to cross the Sun's center (less to the corolla), so its 8 1/3 minutes, approx. 8 1/2 in June.

That is, supposing you don't disintegrate at LS... then the answer would be: *never*

PS: Ha!! my quick eye measure proves accurate: 8' 20" == 500 " ==> 1 AU / 500" = 0.002 AU/sec

Don. Edwards wrote:That really nt that far off anyway. The Sun is 8 light minutes away. Isn't nice to know that if the Sun went out or exploded we would know nothing about for a whole 8 minutes.

I think it wouldnt matter due to the fact when all the red swelling starts Im cutting out quick...

Knowing what we know about our sun, I don't believe anything will happen soon... not within my lifetime, nor my sons, grandsons, great grandsons, great great grandsons, great great great grandsons, great great great great grandsons, great great great great great grandsons... or my great great great great great great great great great great great great great grandsons lifetime. Hehe.

jrobert wrote:Knowing what we know about our sun, I don't believe anything will happen soon... not within my lifetime, nor my sons, grandsons, great grandsons, great great grandsons, great great great grandsons, great great great great grandsons, great great great great great grandsons... or my great great great great great great great great great great great great great grandsons lifetime. Hehe.

if you used copy&paste, you are a cheater!

pint wrote:

jrobert wrote:Knowing what we know about our sun, I don't believe anything will happen soon... not within my lifetime, nor my sons, grandsons, great grandsons, great great grandsons, great great great grandsons, great great great great grandsons, great great great great great grandsons... or my great great great great great great great great great great great great great grandsons lifetime. Hehe.

if you used copy&paste, you are a cheater!

Hmm what do you mean a cheater???
I for one wouldn't type for 2 minutes just to type great 28 times.

Before the sun explodes it still has to expand to about the size of our solar system so if our kind does't flee the planet before it's too hot to live than no one would die from the explosion anyway,because noone will be alive anymore.This planet will probably be gone a few thousand years atleast before the sun explodes.

-Shadow- wrote:Before the sun explodes it still has to expand to about the size of our solar system so if our kind does't flee the planet before it's too hot to live than no one would die from the explosion anyway,because noone will be alive anymore.This planet will probably be gone a few thousand years atleast before the sun explodes.

First the sun will not explode. Rather, it will implode due to the inability of it's internal pressure to act against the force of gravity. So before it does this implosion, it will swell to a red giant stage (consuming the orbits of Mercury, Venus, and Earth) before finally ending up as a white dwarf possibly not much larger than Uranus or Neptune. While the sun is in it's red giant stage, Earths oceans will be boiled off and the orbit will decay as the earth plows thru the hot gases of the suns red giant interior. During the white dwarf stage, the sun will gradually cool down over billions upon billions of years until it reaches the temperature of the background radiation of the universe.

My science teacher when I was in high school told the class that if you put a frog in hot water that he'll immediately jump out but if you gradually heat the water up to boiling that he'll just sit there and do nothing. When the sun starts to swell, we're probably not going to notice immediately. It's not like "now you see it -- POOF! Now you don't!".

jrobert wrote:My science teacher when I was in high school told the class that if you put a frog in hot water that he'll immediately jump out but if you gradually heat the water up to boiling that he'll just sit there and do nothing.

Wow. You needed a new science teacher. The "boiled frog" story is a myth invented by management consultants to illustrate some point or other about imperceptible change. But frogs are actually much smarter than management consultants ...

Grant

Yikes! If that's true than I guess it goes to show that you can't always put faith in what your teacher teaches.

jrobert wrote:Yikes! If that's true than I guess it goes to show that you can't always put faith in what your teacher teaches.

Yeah. Who'd've thought it?

Grant

What?

Light Speed to slow??

Then we will go......LUDICRIS SPEED!!!



hehe

CrookedScepter wrote:What?

Light Speed to slow??

Then we will go......LUDICRIS SPEED!!!

Sir this ship has never gone that fast before!