Thursday, June 11, 2015

Offline Radio June11 2015

Hello,

Today, I am talk about  Supergalactic Coordinats System...

So how we define an object's 3 dimensional position within deep space. 




Supergalactic X, supergalactic Y, and supergalactic Z coordinates usually have units of mega light years (MLY). The coordinates of galaxies relatively close to Earth are sometimes given in units of light years (ly). One MLY (mega Light Year) equals one million light year.

Light year: a light-year is the distance that light travels in vacuum in one year... 
1ly =  It is approximately 9 trillion kilometres (or about 6 trillion miles) 

The supergalactic X and supergalactic Y axes are both in the plane of the supergalactic equator (and perpendicular to each other), while the supergalactic Z axis is perpendicular to this plane

So what do a galaxy’s supergalactic coordinates tell us? Two key things:
1 - its distance from the sun, 
2 - its position relative to the supergalactic equator.

For exapmle: we can say the Triangulum galaxy supergalactic X,Y,Z, coordinates as (2.372,-1.456,0.004) MLY (mega light years)






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