How big is the sun compared to vy canis majoris. Vy canis majoris abbreviated to vy cma is an extreme oxygen rich o rich red hypergiant rhg or red supergiant rsg and pulsating variable star located at 1 2 kiloparsecs 3 900 ly away from earth in the constellation of canis major it is one of the largest known stars by radius and is also one of the most luminous and massive red supergiants as well as one of the most luminous stars.
Vy canis majoris vy cma is a red hypergiant star in the constellation canis major.
Vy canis majoris vs sun size. At that time the star was estimated to be at least 2 800 4 000 solar radi in size. At 3 000 kelvin humphreys estimates that cool supergiant would be as big as 2 600 times the size. Vy canis majoris is the biggest type of star known as a red hyper giant.
Somewhere between 1800 to 2100 sun s size by side make the diameter of vy canis majoris. However vy canis majoris generally tops the list. It is 4 892 light years from earth and has a circumference of 5 46billion miles around 2 000 times that of our sun.
Which means somewhere between 5 832 000 000 5 8 billion to 9 261 000 000 9 2 billion sun s can fit inside vy canis majoris. Betelgeuse mu cephei vv cephei a vy canis majoris below is a list of the largest stars currently known ordered by radius. Case in point vy canis majoris is only 3 500 kelvin and a really big star would be even cooler.
The unit of measurement used is the radius of the sun approximately 695 700 km. Vy canis majoris is in fact cooler than our sun with estimated surface temperatures of around 3 490 k. Discovery chanel of course the best way to feel really really super small is to compare our sun to one of the largest stars ever observed.
Up until 2012 vy canis majoris was considered to be the largest star in the universe. However more research revealed that the figures could be much lower than what had been stated before and the current consensus is that vy canis majoris has a solar radii of around 1 420. This star s diameter is roughly 2000.
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