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Is spectral class B in space hot or cold?
Spectral class is the categorization of stars by temperature and size, mostly the former. Spectral class B is very hot. In descending order (hottest to coolest) the spectral classes are O,B,A,F,G,K,M. You can see that B is very near the top.
How are the spectral classes and H-R diagram related?
Spectral classes are labels used to categorize stars based on their temperature and color, ranging from hot and blue (O-type stars) to cool and red (M-type stars). The Hertzsprung-Russell (H-R) diagram plots the luminosity (brightness) of stars against their temperature or spectral class, allowing us to see patterns such as the main sequence, giants, and supergiants. The spectral classes and position of stars on the H-R diagram are closely related as they provide information on a star's temperature, luminosity, and evolutionary stage.
What are the brightest bluest stars?
stars in spectral classes O, B, or A would be a bright bluish color, leaning towards a purplish color as you go from A to O.
Why do stars of spectral class M not show strong lines of hydrogen in their spectra?
Stars of spectral class M have cooler temperatures compared to stars of other spectral classes, causing their hydrogen lines to weaken and be less prominent in their spectra. The lower temperature results in lower energy levels, making it more difficult for hydrogen atoms to transition between energy levels and emit or absorb light in the hydrogen spectral lines.
What is Vega spectral class?
The spectral class is A0Va.
How hot is spica star?
Spica is the brightest star in the constellation Virgo.It has a spectral type of B1 and has a temperature of 22,400oK
What are the spectral classes?
See related link for a full explanation.
How much do astronomers use spectral analysis to classify stars?
Astronomers use the patterns of lines observed in stellar spectra to sort stars into a spectral class. Because a star’s temperature determines which absorption lines are present in its spectrum, these spectral classes are a measure of its surface temperature. There are seven standard spectral classes.
When was SPICA created?
SPICA was created in 1932.
Which star is hotter betelgeuse or spica?
spica is hotter. even though btelgeuse is bigger it is not as hot as spica
Who discovered the spica star?
NIcolus Copernicus did many observations on the spica but no one knows who discoveed the Spica Star
When was Mylothris spica created?
Mylothris spica was created in 1884.
When was Twin Spica created?
Twin Spica was created in 2009.
Is Spica in Virgo?
YES, Spica is in Virgo.It is the brightest star in the constellation.
What is the size of Spica in space?
Spica has 7-8 times the diameter of our Sun.
What is the brightness of spica?
Spica's absolute magnitude (Mv) is: −3.55 (−3.5/−1.5)
What type of star is Spica?
Spica (Alpha Virginis) is the brightest star in the constellation Virgo.It is actually a binary star, comprising of two close orbiting stars.The primary has a spectral class of B1 and the secondary B2. They are both blue giants.
