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Why did the Star Destroyers look so big from the surface of the planet when they aren't

Posted on 12/18/17 at 2:10 pm
Posted by Pectus
Internet
Member since Apr 2010
67302 posts
Posted on 12/18/17 at 2:10 pm
And why has that view never been shown before in Star Wars? Or has it?
Posted by ell_13
Member since Apr 2013
88012 posts
Posted on 12/18/17 at 2:13 pm to
Did you miss Rogue One where a destroyer just hung out over a city for a half the film?
Posted by Volvagia
Fort Worth
Member since Mar 2006
53469 posts
Posted on 12/18/17 at 2:14 pm to
Eh.

That wasn’t too far from the size I would expect.

Better question is why didn’t you see the Resistance’s flagship/battleship, which is twice the size of a ISD.
Posted by Pectus
Internet
Member since Apr 2010
67302 posts
Posted on 12/18/17 at 2:17 pm to
I thought so too, then I didn't realize what I was thinking...

A Star Destroyer is 1600 meters long, that's a few hundred feet less than a mile.


Mountains are over a mile in diameter and are much smaller at closer distances than the Star Destroyers were.
Posted by Pectus
Internet
Member since Apr 2010
67302 posts
Posted on 12/18/17 at 2:18 pm to
quote:

Did you miss Rogue One where a destroyer just hung out over a city for a half the film?



I remember that, but you can answer for that with an engine we've never heard about.

This one breaks the laws of physics.
Posted by LSUBoo
Knoxville, TN
Member since Mar 2006
104050 posts
Posted on 12/18/17 at 2:19 pm to
Maybe whatever planet they were on is much much smaller than Earth, so even out of the atmosphere the star destroyers were a lot closer than you think?
Posted by Pectus
Internet
Member since Apr 2010
67302 posts
Posted on 12/18/17 at 2:33 pm to
I thought about that too, then I did some searching on the physics I remember from Physics II with images...


Here's a link to someone asking the smallest thing you can see in orbit (the ISS is rather close). 100 m is basically one pixel at Earth's orbit...

So, the equation is just
d = Height of space orbit x (60 arc seconds [angular resolution of the eye] / 206265 arc seconds in one radian)

ISS altitdue of space orbit (400,000 m) to reflect a Star Destroyer's altitude on any planet surface.
This post was edited on 12/18/17 at 2:34 pm
Posted by Volvagia
Fort Worth
Member since Mar 2006
53469 posts
Posted on 12/18/17 at 2:55 pm to
quote:

Mountains are over a mile in diameter and are much smaller at closer distances than the Star Destroyers were.


That’s a shakey comparison because the bulk of that mass is covered by the curvature of the planet and surface features.

Compare it instead to the ISS.

At just 100 meters and being hundreds of miles away, you can just discern the I shape of the primary panels with a sharp eye and the right angle.
This post was edited on 12/18/17 at 2:57 pm
Posted by GAAtty70
Member since Nov 2015
905 posts
Posted on 12/18/17 at 2:57 pm to
I am still wondering how Rose's sister dropped bombs (or anything else for that matter) in space.
Posted by Pectus
Internet
Member since Apr 2010
67302 posts
Posted on 12/18/17 at 2:57 pm to
Look at my equation above
Posted by biglego
San Francisco
Member since Nov 2007
84741 posts
Posted on 12/18/17 at 4:14 pm to
I thought it was cool to see the ships like that.
This post was edited on 12/18/17 at 4:14 pm
Posted by Nodust
Member since Aug 2010
22802 posts
Posted on 12/18/17 at 6:33 pm to
Maybe the planet had a thin atmosphere and they weren’t hat high.

I thought it was a cool shot.

I always wondered how the millennium falcon gravity inside it while in space.
Posted by Draconian Sanctions
Markey's bar
Member since Oct 2008
88509 posts
Posted on 12/18/17 at 6:36 pm to
Guys

It's a movie

quote:

I thought it was a cool shot.


Is why they did it

I get annoyed too when the suspension of disbelief is shattered (Mary Poppins), but how big the star destroyer looks from the planet surface is not anywhere near that level.
This post was edited on 12/18/17 at 6:38 pm
Posted by Lacour
Member since Nov 2009
32949 posts
Posted on 12/18/17 at 6:36 pm to
Star destroyers are like 12 miles long. I don’t know where you got your info
Posted by FleurDeLonestar
The Dirty HOU
Member since Mar 2011
6275 posts
Posted on 12/18/17 at 7:26 pm to
1600 meters is a mile...
Posted by bamafan1001
Member since Jun 2011
15783 posts
Posted on 12/18/17 at 7:54 pm to
quote:

I am still wondering how Rose's sister dropped bombs (or anything else for that matter) in space.


or why the rebel ships that ran out of fuel started falling down like an airplane out of fuel
Posted by Hopeful Doc
Member since Sep 2010
15388 posts
Posted on 12/18/17 at 9:12 pm to
quote:

or why the rebel ships that ran out of fuel started falling down like an airplane out of fuel



That was frustrating.

But the way Star Wars works is that something dumb is done/overlooked in writing, so the Community finds an answer.

In this case, there were multiple engines. The ones on the bottom failed first, the engine on top burned the longest. This caused an angular momentum that looked like "falling."


Did the writers realize that the only way the entire premise works is if the ships thrusters had limitless acceleration which they had to continuously use where they couldn't reach a maximum velocity but couldn't accelerate any faster without a "jump" which would overshoot the group that is in front of them that had to also constantly accelerate? If they were accelerating like this, did they just all have really good "sea legs" and every object designed with a mass or magnetic-ness so that it wouldn't go flying if dropped or left sitting on a counter?
Does Star Wars space have friction or "Space Resistance" which forces thrusters to be used for constant speed (rather than constant acceleration)? Is it because of the presence of matter in "space" that caused Leia to not be torn apart/implode/whatever the proposed mechanism of humans in space would do nearly immediately?
Is it similar to real space where matter is thought to be sparse rather than absent and we are dealing with speeds fast enough that the friction is present?


But really, why the constant thruster burning and why does the Resistance ship have a sub-jump max acceleration higher than the larger First Order ships which can also get to light speed ? It's as if the Resistance ship can go from 1-10 and then also 20 while the FO ship can only go 1-9 and also 20, but for some reason was also not getting farther away?


SW Logically, I think they required fuel to maintain constant speed. It's the only thing that makes sense. Therefore, either their space has matter with Resistance or they are at speeds where the minimal to no Resistance of space matters. Or they don't understand physics.
Posted by biglego
San Francisco
Member since Nov 2007
84741 posts
Posted on 12/18/17 at 9:19 pm to
Really. This thread is looking for something to bitch about. Star Wars can never be held to the laws of physics. We wouldn’t want that.

Besides, when a ship comes out of light speed, how are the occupants not tossed around?
Posted by Hopeful Doc
Member since Sep 2010
15388 posts
Posted on 12/18/17 at 11:06 pm to
quote:

Besides, when a ship comes out of light speed, how are the occupants not tossed around?



Inertial compensaters exist in the universe.


I started to reply with "force springs" but decided to ask my brother who read a few books. That was his answer.
Posted by Napoleon
Kenna
Member since Dec 2007
74272 posts
Posted on 12/19/17 at 12:22 am to
Inertia compensators and artificial gravity. Negates g forces.
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