Milky Way Star Density Formula
250 billion stars or maybe Trillions says NASA as to how many stars are in our own Milky Way Galaxy.
My star density formula using clasdic Euclidean Geometry by hand shows it is 250 billion using observed observation as to stars close to earth’s sun if we use Earth’s distance to it’s next star other than our sun
The numbers of stars is a simple 3D Euclidean equation using cubic spacing.
Space between stars are 5 light years on average or best estimate based on our position to other stars.
Milky Way Diameter estimated:
100k light years diameter
It’s 100:1 ratio for depth
So 1k depth
Now divide by 20% (5 light years)
That’s star spacing using Earth as an average star with 5 light years spacing to it’s closest star.
So 20k stars straight line across the diameter of the Milky Way
200 stars deep
That’s 4 million in a 5 light year 3D slice of the Milky Way using diameter and depth of a 3D circle.
Pi formula show 314k circle circumference
Divide by 5
63k pi slices
4 million stars each slice of the 3D Milky Way Galaxy, very simple math.
250 billion stars Milky Way my star density formula if spacing is 5 light years.
NASA is right it matches my formula, but is it really right?
Observation does not support this density formula
Within 15 light years of earth NASA claims there are 60 observed stars, 2 similar to earth and the rest red dwarfs.
Since the Milky Way is flat, it’s width is 100 to 1 ratio of it’s depth, we can build a simple set of circles around Earth, first radius is 5 light years from earth. repeat the circle for 10 light years radius then 15 light years radius. Due to our Galaxy being flat small radii doesn’t need to add depth, only diameter is needed.
The math spacing stars on each circumference of these three circles yields the following.
6 Stars first circle
12 Stars second circle
18 Stars third circle
36 stars plus our sun or 37
Nasa shows 60 stars within 15 light years of earth.
So observed data is off for the 5 light year spacing NASA estimates to get only 250 Billion stars in whole Milky Way.
When the stars are counted at 50 and 100 light years from Earth, the spacing gets way smaller than 5 light years.
It might be as low as 1 light year average spacing between stars. That works out to 314 Trillion stars in the Milky Way.
So NASA is out of synch with newly observed data showing much less spacing between stars in Milky Way.
The most likely number suggests close to 300 Trillion Stars just in our Milky Way and new data suggests the Milky Way could be almost 200k light years across, however the increased area from 100k to 200k is not heavily populated with that many stars.
The number of stars is easily in the TRILLIONS not 250 Billion.