How hot is a star?

Answer 1

A star is hot enough to burn you up C-O-M-P-L-E-T-E-L-Y even before you get to touch it. I mean, just consider the sun. It gets boiling hot here on Earth, thousands and thousands of kilometres away from it. And it is like, 10,000 degrees F.
Some stars are known to have core temperatures as high as 10 billion degrees F.

Ouch.
You don't want to touch it. Trust me.

Answer 2

The Surface Of A Star Is 6000ºc But The Inside Of The Star Can Be Over 100,000,000ºc

Answer 3

A cold star glows red with a temperature of about 3000 degrees K. A blue hot star has a temperature of about 10000 degrees K. The sun is yellowish white with a temperature of 5800 degrees K.

Answer 4

It depends upon its color and its place in HR diagram,

I am giving here colours and the star with that colour has which temperature...

Firstly note that black stars are the coolest.
after that, red stars, orange stars, yellow stars, white stars, and blue- the hottest

Firstly know that here is no question of mass, size and etc of star, because all those factors are indirectly included in colour

colour temperature abbreviation
Deep blue 30000 Kelvin o
Sky blue 10000 K b
Bluish White 7500 K a
white 6000 K f
Yellow 5000 K g
orange 4000 K k
red 3000 K m

I have given temperatures here in Kelvin. Please convert them into F or C or something you want,
The abbreviations are just a letter given to the star having that temperature
they are known as spectral classes:
http://en.wikipedia.org/wiki/spectral_classes


Thank you

Answer 5

It depends on the type of star and it's size e.g red dwarfs are fairly cool (less than 3,500 K) the sun is relatively hot (about 5,750 K on the surface). There are hotter stars but not cooler ones (anyhting smaller is a Brown dwarf and not technically a star)

Answer 6

Our closest star the Sun is extremely HOT! The middle of the Sun is at least 10 million degrees. The "surface" of the Sun (what we see) is only 5800 degrees. This is cool for the Sun, but is actually about 16 times hotter than boiling water (ouch!). The outer atmosphere of the Sun (which we don't really see with our eyes) gets extremely hot again, about 1.5 to 2 million degrees.

Answer 7

The spectral profile of all stars closely approximates that of a Black Body curve (http://en.wikipedia.org/wiki/Image:Blackbody-lg.png) and a simple equation defined by Weins Displacement Law can then be used to calculate the surface temperature of a particular star once the wavelength of its peak emission is known.

Answer 8

The temperature varies with each individual star. Also the temperature varies from the center of each star to it's outer layer. The temperature will also greatly vary during an individual stars life.

Answer 9

Teff = 5780 K (M / Msun)^(a/4 - 0.36)

where...
Teff = the star's effective temperature
M = the mass of the star
Msun = 1.99E+30 kilograms
a = the exponent in the mass-luminosity relation

For stars more massive than the sun:
a = -0.2136 (log M)^2 - 0.1842 (log M) + 4.360
For stars between 0.6 and 1.0 solar masses:
a = -0.3647 (log M) + 4.360
For stars having less than 0.6 solar masses:
a = +1.861 (log M) + 4.861

The logarithm functions are to the base of ten. My curvefits are valid only for main sequence stars (not giants, supergiants, or white dwarfs).

Answer 10

I can't remember the exact temperature, but I heard an interesting statistic...if a pin head as hot as the surface of the Sun was on Earth, all life within a 90 mile radius would burn to death...I have no idea if thats true or how you check it...but its a lovely fact isnt it!