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O Class stars have the following characteristics.
- Temperature: > 30,000 Kelvin
- Colour: Blue
- Mass: > 16 Solar masses
- Radius: >6.6 Solar radius
- Luminosity: > 30,000 Solar luminosities.
- Rarity: 0.00003% of all main sequence stars.
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What class of stars are the largest?
Blue (O).
Why are o and b main sequence stars rare?
Simply, because they are the hottest and thus the most luminous.
Is a red star hotter than a blue star?
yes they are, in fact, white stars a hotter than blue or red star, and blue stars are varie in sizes, red stars are usually mid size or red giants or super giants. the bigger they are does not mean they are hotter!
What is the hottest yellow sun or blue star?
The Sun is a star. Blue is the hottest. They fit into the Class O category, greater than or equal to 33,000K. Yellow stars (like the Sun) are in class G, and are between 5,200K and 6000k
Are stars moons?
No. Stars are their own class of of objects. In simple terms planets orbit stars and moons orbit planets.
How hot are O stars?
Class O stars are the hottest of stars with temperatures greater than 30,000oK
What class of stars are the largest?
Blue (O).
Why are there no massive O and B stars?
There are stars with spectral classes of O & B (e.g. Rigel) R136a1 is a star of the spectral class WN5h. Wolf Rayet stars have this kind of spectral type.
What spectral class of stars are the hotteset?
Type-O are the hottest but there are very few. Then type-B, there are more of them but still not a lot. Then you have type-A, which are very common, then F, then G like the Sun, then K and then the coolest common ones, type M which are the red stars like Betelgeuse.
Why are o and b main sequence stars rare?
Simply, because they are the hottest and thus the most luminous.
Is a red star hotter than a blue star?
yes they are, in fact, white stars a hotter than blue or red star, and blue stars are varie in sizes, red stars are usually mid size or red giants or super giants. the bigger they are does not mean they are hotter!
How are stars classified description?
There are several ways that Stars get classified. The first is by spectrum, this was used early on in astronomy as astronomers did not have the equipment we have today. Basically they measure the visual spectrum of light that the stars give off to Earth. The second method is using the letter system O B A F G K M. O being the hottest and M the coolest. O class stars contain helium, B class stars have hydrogen and helium, A class stars hydrogen and ionized metals, F class Stars hydrogen, ionized calcium, and iron, G class Stars (like our sun) calcium and ionized metals, k class stars neutral metals and sodium and M class Stars sodium and titanium oxide. The third method is by is by temperature. They measure the heat it gives off and the amount that is absorbed by the materials around the star these are called absorption lines. This helps to determine what letter to give a Star. The fourth is by colour. The the visual colour the star appears in the sky is not enough to just say its red or blue so they other measurements like infrared and other kinds of invisible light spectrum's. And finally the elements that surround a star also differentiates what light is reflected back to earth. You combine all these methods together and you get how stars a classified.
What is a Virginia State Class O Felony?
va class o felony
When was SER O class created?
SER O class was created in 1882.
When was WAGR O class created?
WAGR O class was created in 1896.
When was NER Class O created?
NER Class O was created in 1894.
How do you say your in hawaiian?
1. Singular possessed object, singular. Kou (o-class); kāu (a-class); kō (neutral class). 2. Singular possessed object, dual. Kō ʻolua (o-class); kā ʻolua (a-class). 3. Singular possessed object, plural. Kō ʻoukou (o-class); kā ʻoukou (a-class). 4. Plural possessed objects, singular. Ou (o-class); āu (a-class). 5. Plural possessed objects, dual. O ʻolua (o-class); a ʻolua (a-class). 6. Plural possessed objects, plural. Ō ʻoukou (o-class); a ʻoukou (a-class).
