
Why is Stephenson 2-18 so large? - Physics Stack Exchange
2020年8月28日 · That said, Stephenson 2-18 appears to be substantially larger than the maximum theoretical size of a red supergiant. Nonetheless, this is not certain, because it …
How Big is the Sun? | Comparisons, What Is Bigger, Facts - The …
For a long period of time, the biggest star known to us was either VY Canis Majoris, Betelgeuse, or UY Scuti; however, since 2020, the biggest star we currently know of is Stephenson 2-18. …
How Many Stars Are in the Universe? - The Nine Planets
2020年9月29日 · Stephenson 2-18 is the largest star discovered in the Universe since 2020. If this hypergiant star would replace our Sun, then its photosphere would reach the orbit of Saturn. …
R136a1 | Facts, Information, History & Definition - The Nine Planets
2019年12月6日 · R136a1 is the most massive and luminous star ever discovered in the Universe. It is also one of the hottest stars, and it is located in the Large Magellanic Cloud.
New Largest Know Star in the Universe-Stephenson 2-18
2020年8月21日 · Move over UY Scuti, the former title holder for the largest known star in the Universe, we have a new champion named Stephenson 2-18. UY Scuti was believed to be …
How Big is Jupiter? | Size Comparison, Actual Size & Facts
2020年9月29日 · So how big is Jupiter actually? Well, Jupiter has a diameter of around 142.984 km / 88.846 mi. Click for more information
New Largest Know Star in the Universe-Stephenson 2-18
2020年8月26日 · Stephenson 2-18 could possibly be a black-hole, Don't black holes usually form an accretion disk? Never heard of an accretion sphere. It seems to fit the spectral signature of …
New Largest Know Star in the Universe-Stephenson 2-18
New Largest Know Star in the Universe-Stephenson 2-18, page 2
What is implied when the spectrum of a star has deep absorption …
2017年10月3日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …
What size will the Sun become once it is a red giant?
2013年12月4日 · $\begingroup$ I would add that the point of the paper cited in that answer is that the Earth would move out far enough to avoid engulfment (since the Sun will lose mass and …