Largest Star in Universe (so far) St2-18

[Butkus51]

6-30-26

I saw a show on YouTube about our Universe.  The largest known star in da Universe is St2-18 or Stephenson2-18.  It’s in our galaxy, Milky Way and 19,000 LY from earth.

1.  10 billion of our Sun could fit in this giant.  Crazy Big

2.  Traveling 550 mph (rate of a commercial airliner) would take 1,212 yrs to make a complete trip around its equator.  Unreal.

3.  Traveling 17,500 mph (rate of a spacecraft) would take 38.1 yrs to make a complete trip around its equator.  Dang!

[Java]

So you’re telling us we better get started and we are running out of time?

 

I call the window seat

[Butkus51]

Crazy info.  There are way more stars in the Universe than all the sand on earth.

Astronomers estimate there are roughly 10,000 stars in the observable universe for every single grain (10,000 to 1) of sand on all the beaches and deserts on Earth.  For the longest time, it was estimated there were 400 B galaxies, but now with the advanced, powerful James Webb telescope which can see further into time, it is now estimated that there are 2 trillion galaxies (unreal).

• This reply was modified 14 hours, 40 minutes ago by Butkus51.

[Butkus51]

Mucho Big.

Galaxies.  Est 2 Trillion G in our Universe.  Galaxies size, range: 100 B to 1 trillion stars.  Dark Matter (gravity) holds Galaxies together.  DM = 27% of Universe.

Our Universe has about 2 x 10 to power 23, stars.  Or, 200 sextillion.  Sextillion = 10 to power 21.

Universe age about 13.9 B years old.  But, currently it’s 93 B LY across (diameter). The Universe is expanding about 350 K LY per day (crazy fast).  Dark Energy (anti gravity) is the culprit = 68% of Universe.

The Universe:  68% Dark Energy, 27% Dark Matter, 5% = Stars, Planets, Meteors, Star Dust, Comets, Black Holes.

Here is a Craziest idea (theory).  Many astronomers, cosmetologists think there could be millions, parallel Universes (Multi Universes).  String Theory.  Come on, now dat;s Freaky!

Finally, there are a good number, prominent astronomers, cosmetologists think & believe God created everything.  Hallelujah.

• This reply was modified 2 hours, 9 minutes ago by Butkus51.

[Old Pueblo]

Cool subject Butkus51. I went to a star party many years ago in joshua tree where the enthusiasts bring their scopes and you can use them, the advanced stuff that follows the earth’s rotation. Kind of mind blowing that one of the ‘stars’ in the orion constellation is a nebula. Then i was in tucson and mt kitt is a big boy observatory. Very cool. Too bad we don’t have a good public observatory in southern CA. I hear borrego springs is a good place to stargaze but have yet to check it out. An aside, my oldest kid couldn’t give a sheet about the universe but my youngest and his buddies are space crazy and watches those youtube vids. I’m glad to see that.

[Author]

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