Sun VS Stephenson 2-18: The New Largest Known Star 2024

Sun Compared to Stephenson 2-18: The New Largest Known Star, Bigger than UY Scuti • (2K) • 2021

Stephenson 2-18 ( RSGC2-18 / Stephenson 2-DFK 1 ), is a red supergiant (RSG) star within the open cluster Stephenson 2 located around 19,500 light years away in the constellation of Scutum.

Stephenson 2-18
Radius ~2,150 x Sun radius (1.495 billion km, 928 million mi)
Distance from the sun ~19,560 Light years
Luminosity ~440,000 Sun x Luminosity
Surface temperature ~2,900 °C (5,252 °F)
Mass unknown

UY Scuti
Radius ~1,708 x Sun radius (1.188 billion km, 738 million mi)

Distance from the sun ~5,100 Light years
Luminosity ~86,000 x Sun Luminosity
Surface temperature ~3,300 °C (5,972 °F)
Mass 7-10 x Sun mass

Sun
Radius 695,700 km (432,287 mi)

Surface temperature ~5,500 °C (9,400 °F)
Luminosity 3.82×10^26 Watts
Mass 1.989 × 10^30 kg (4.38 × 10^30 lbs)

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Video Details
Software: Blender 2.9
Render time: 20 Hours
Music: Music: "Documentary Background Epic Music by Infraction " -
Infraction - No Copyright Music

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[Ghost-gcdj]

I remember when VY Canis Majoris was the biggest hypergiant star.

[TheBenduOrder]

*UY Scuti’s exact size is difficult to determine due to its pulsation. However, recent estimates have made the star smaller. The radius has dropped – it now has 755 times the radius of our Sun.*

[akhtarkhan]

Stephen is such a good father he took great care of his son he is so big and healthy

[DarkArc_]

remember the time when scuti was the biggest? i do

[timothyambe]

My Friends: The Sun is the biggest star in the whole Universe!
Stephenson 2-18:

[jestoniespiel]

There are some specific factors that affect luminosity. As the size of a star increases, luminosity increases. If you think about it, a larger star has more surface area. That increased surface area allows more light and energy to be given off. Temperature also affects a star's luminosity. You don't even need to look at a star for this idea. Just think about a stove or a fire. When you see very little light, chances are the temperature is lower. When an electric stove is off, it is black. But when it is on high, the stove glows bright red. The same idea applies to stars. As a star gets hotter, the number of nuclear reactions increases. More reactions, more energy.

[mvos]

Very cool. It's crazy to think the sun has a hotter surface temperature than them

[esti-sx]

Thanks to the camera man who traveled to get some footage:)

[robby]

This is just the tip of the iceberg. Wouldn’t surprise me if there are countless stars many times bigger than the biggest one we know so far.

[hypergameryt]

Stephenson 2-18 breaks the Biggest star record in our Milky Way Galaxy....I Thought that Uy scuti was the Main boss Star of our Milky Way

[AnselmoFelipeYan]

I love the fact that most giant stars have cool names (VY Canis Majoris, Antares, Aldebaran, Pistol Star) and yet the biggest star’s name is Stephenson.

[BOX_corporation.]

Baby yoda at the end sort of jumpscared me

[Jantarowiec]

Saturn:
Peryhelium: 1, 514, 500, 000 km
Aphelium: 1, 352, 550, 000 km
There is a bug here
Besides this animation is great!

[hemanthvarma]

Stevenson 2-18 is now the biggest star. Bigger than UY Scuti.

[jjsta.romana]

Imagine Stephenson 2-18 and UY Scuti were actually close to each other and the both collided, they would have did a Supernova.

[ElKabong]

"There's always a bigger fish"

[brentonfriesen]

Great Video! Would I be able to play it in my Church this weekend?

[kiraramax]

update from wikipedia, VY Canis Majoris is now the second largest star at 2069 solar radii and Stephenson 2-18 number one at 2150 solar radii.

[rdstreet]

poor sun is not even visible at that distance 😂

[alialahmad]

Interestingly, our sun still has the highest surface temperature according to this. Why is that?