Stephenson 2-18 (St2-18) is a red supergiant located in the constellation Scutum. Also catalogued as Stephenson 2-DFK 1 and RSGC2-18, it is the current record holder for the largest star known, with a size 2,150 times that of the Sun....Stephenson 2-18.Spectral classM6Declination−06° 05′ 10.535778038″•Sep 13, 2020
It is possibly among the largest known stars, and one of the most luminous red supergiants, with a possible radius around 2,150 times that of the Sun ( R ☉), which would correspond to a volume nearly 10 billion times that of the Sun....Stephenson 2-18.Observation data Epoch J2000 Equinox J2000Database referencesSIMBADdata
2MASS image of Stephenson 2 as the cluster of stars in the upper left, with Stephenson 2-18 at the center. Stephenson 2 (also known as RSGC2) is a young massive open cluster belonging to the Milky Way galaxy. It is located in the constellation Scutum at the distance of about 6 kpc from the Sun.
But there are more ways than one to measure stars' bigness. In terms of sheer physical size, the star UY Scuti is considered the biggest known. Left to right: a red dwarf, the Sun, a blue dwarf, and R136a1. R136a1 is not the largest known star in terms of radius or volume, only in mass and luminosity.
How big is Stephenson 2-18, among the largest stars in the known universe? It would take earth's fastest jet over 500 years to travel around. It would take almost 9 hours at the speed of light. Its circumference equals the orbit of Saturn.
5,219 light yearsUY Scuti/Distance to Earth
UY Scuti is the largest. The problem starts because we don't know the exact radius of both stars due to margin of error in size determination. People often confused about the winner because the minimum radius of UY Scuti is smaller than the maximum radius of VY Canis Majoris making latter the largest.
Size, and Mass UY Scuti's exact size is difficult to determine due to its pulsation. However, recent estimates in 2019 have made the planet a bit smaller due to its change in temperature. The radius has dropped – it now has 1708 times the radius of our Sun.
Stephenson 2-18's mass is estimated to be about 12 to 16 times the mass of the Sun.
1.4958 billion kmStephenson 2-18/Radius
Stephenson 2-18's mass is estimated to be about 12 to 16 times the mass of the Sun.
1.4958 billion kmStephenson 2-18 / Radius
So the force of 100 stars exploding would obliterate everything nearby. Even if Earth was far enough away to survive the blast, without the star, there would be no heat and no light, and life could not survive on Earth without them.
2.3765 billion kmUY Scuti/Diameter
Supergiant stars are the largest stars, and they are much larger than our own Sun. Some of them are thousands of times bigger than the Sun. If you think Betelgeuse is large, it does not even compare to the largest star we have located. The largest star we have identified is UY Scuti, which was found in 2012.
0:082:34Stephenson 2-18: The Largest Star In The Universe - YouTubeYouTube
M6Stephenson 2-18/Spectral type
Yes. Superman can lift any finite mass.
The pulsation of UY Scuti has a period of about 740 days. Because of this pulsation, its exact size also varies, making an exact estimation difficult. The temperature on UY Scuti is estimated to be around 3,365 K. It is believed that UY Scuti has begun to fuse helium and will eventually go supernova.
1.1883 billion kmUY Scuti / Radius
According to the standard Mutant Power Level Classification of Marvel's Earth-616 (Prime Earth), Wolverine is a Beta-level mutant, which means that he can actually pass off as a human, but only if not observed very carefully.
Air it out. Try not to cover the stump with baby's diaper (plenty of newborn diapers come with a U-notch to ensure baby's umbilical cord isn't covered up). Use comfortably fitting—not tight—onesies, or just dress baby in diapers and T-shirts.
Ravager Code According to Stakar Ogord, Ravagers do not deal in children. Any Ravager that redeems himself or herself in the eyes of the Ravagers via a good and brave deed, such as saving others or die trying, that Ravager is welcomed back into the team.