Posted on 09/11/2017 8:29:48 AM PDT by ETL
An immense black hole 100,000 times bigger than the sun has been discovered at the heart of the Milky Way.
The enormous void, which lies around 25,000 light years from Earth, could help scientists uncover the how stars, galaxies and even life itself came to be in the universe. ..."
According to reports, this newly-discovered black hole could rank as the second largest ever seen in the Milky Way.
Despite its immense size, scientists have called it a "mini me" version of its super-massive "cousin" known as Sagittitarius A*.
(Excerpt) Read more at foxnews.com ...
1) When referring to a black hole's size "bigger" refers to its 'Event Horizon'. The EH is the distance out from the BH's center marking the edge of the region in which 'escape velocity' (the speed required to escape a gravitational source) exceeds the speed of light, thus the reason BHs are black, or invisible to us: Even light cannot escape their immense gravitational field.
The EV for Earth, on the other hand, is a mere approximate 18,000 miles per hour.
In other words, if you were shot out of a cannon, straight up, at 18,000 or more miles per hour you would escape Earth's gravitational pull and be launched into space.
This is not the same as being launched into orbit, where one of course does not escape the Earth's pull entirely but rather rides a fine line between escaping and inertially moving straight forward. Too slow a launch velocity and an orbiting object will spiral back down to Earth.
In reality, all orbiting objects, due to atmospheric drag, will eventually spiral back down to Earth. In fact, the International Space Station (ISS) has boosters on board to correct this effect, although the height of the orbit matters, as the thickness of the atmosphere of course varies with height.
2) The "super-massive "cousin" known as Sagittitarius A*" is THE central black hole in our Milky Way Galaxy. It lies roughly 26 light years (26 x 5.9 trillion miles = 153 trillion miles) away and is approximately 4 MILLION times as massive as the Sun. The entire galaxy revolves around this object.
At the core of any Black Hole, no matter how large its Event Horizon, is an 'infinitely small' region of space known as a singularity. Turn the knob to increase the mass within an infinitesimal singularity and its EH grows proportionally, similarly to a spherical balloon being inflated. The singularity's 'size', I imagine, remains the same or perhaps becomes even smaller.
Black Holes Matter
It's statements like this that drive me nuts. The void won't tell us anything about how life came to be.
A supermassive avocado makes Guacahole.
Federal Budget?
Isn’t the Earth’s orbital velocity 18,000 mph and the escape velocity more like 24,000 mph.
I believe that the Sagittitarius A black hole is 26,000 light years away, not a mere 26 light years.
Not only that, but black holes are not enormous voids. They are the densest objects in the universe, and are also very tiny, the event horizon typically only a few miles across for a normal one.
yes, you correct. Sorry about that.
All Holes Matter!
Does Don Lemon know about this?
Who said 'mere' 26 light years away.
I wrote:
It lies roughly 26 light years (26 x 5.9 trillion miles = 153 trillion miles) away and is approximately 4 MILLION times as massive as the Sun. The entire galaxy revolves around this object.
In any case, given that our galaxy is some 100,000 light years from end to end, 'mere' might not be a bad way to put it.
Oops! Sorry again! I guess not enough caffeine yet today. Of course it’s 26 THOUSAND light years away.
“By faith we understand that the universe was created by the word of God, so that what is seen was not made out of things that are visible.”—Hebrews 11:3
Poor things, devoid of faith, cannot “know” what us simple believers KNOW.
“I praise you, Father, Lord of heaven and earth, because you have hidden these things from the wise and learned, and revealed them to little children. Yes, Father, for this is what you were pleased to do.”—Jesus, Luke 10:21
And I praise you, Father!
I did a little calculate and found that 100,000 times the diameter of our Sun is 86 billion miles.
Well, at the speed of light, it would take a mere 5 Earth days for light to cross that diameter.
So my question is: why isn't the diameter of this black hole known with greater accuracy?
If the distance away is give-or-take a few hundred light years (5.9 trillion miles each), how can they tell us so precisely that the diameter of this black hole is 86 billion, give-or-take a few billion years?
Should name it Sharpton.
Something else to thank God for: we’re about 70,000 light years away from that thing.
There are no singularities in the real world, but the smallest quantum of area is so small it might as well be a singularity.
Sorry, my question is really about the lack of accuracy of the distance away.
Why is the diameter so relatively accurate compared to the very imprecise “about 25,000 light years away”?
Sorry I didn’t check this over better.
Man is flawed, the older we get the more flawed we bcome without the holy spirit’s indwelling.
Jesus said we have to have child-like faith.
I would rather trust Jesus and strive for child-like faith then trust flawed man.
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