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Each star type has it's own emission spectrum. There are stars that are very hot and look blueish to the eye (but have a lot of ultra violet if you have a sensor that can detect those wavelengths) and there are stars that look reddish because they are not as hot on the surface, they still can appear bright because they are so large and can be (relatively) close to us too.
What else can I help you with?
The Greeks assigned what magnitude to the brightest stars seen in the night sky?
The brightest stars were traditionally magnitude 1; the weakest that could still be seen with the naked eye, 6. This system has been formalized and refined; as a result, there are now not only magnitudes with decimals, but also negative magnitudes for the very brightest stars and planets. For example, Venus has a magnitude of approximately minus 4.
What are the brightest objects in the sky after sunset?
Generally the brightest objects seen in the sky are the moon, some planets, (notably Venus and Jupiter) and stars, Sirius being the brightest.
What are the seven brightest stars in ursa minor commonly called?
The seven stars are called the Big Dipper or the Plow.
One of the 20 brightest stars?
One of the 20 brightest stars in the sky is Sirius, also known as the "Dog Star". Sirius is the brightest star in the night sky and is located in the constellation Canis Major. Its luminosity and proximity to Earth make it a prominent feature in our night sky.
How do you describe the stars of the first magnitude?
"First magnitude" usually means the brightest 21 stars, as seen from Earth. Another definition is stars with apparent magnitudes 0.5 to 1.5. This definition excludes the very brightest stars, like Sirius. They are the first stars that become visible after sunset and they all have names. Examples are Altair, Aldebaran, Capella, Spica, Antares, Fomalhaut, Deneb, Regulus, Sirius, etc. There can be confusion because First Magnitude stars are not stars with an "apparent magnitude" of exactly "one". They are just the brightest stars, but naturally their magnitudes are close to one.
Are stars blue in colour?
Stars vary in color and may be red, orange, yellow, white, or blue. Blue stars are the hottest and among the brightest.
What is the brightest colour in the world?
Brightest colour is white or just before white
What are the two brightest stars in the orien?
the two brightest stars in the orien
What are the two brightest stars in the constellation Orien?
the two brightest stars in the orien
How many are the brightest stars of the Taurus?
You can take as many as you want.For instance: The ten brightest stars are ten; the 100 brightest stars are 100; etc.
What are four brightest stars of Orion?
The four brightest stars of Orion are Betelgeuse, Rigel, Bellatrix, and Saiph. Betelgeuse and Rigel are the two brightest stars in Orion.
Are the brightest stars white dwarfs?
No. White dwarfs are fairly dim. The brightest known stars are generally Wolf-Rayet stars.
Is the yellow star the brightest star?
No. Blue stars are generally the brightest.
What is the brightest but coolest cluster of stars?
the brightest star and coolest is betelgeuse
Which stars are the brightest stars in the Leo constellation?
Regulusγ1 LeoDenebolaδ LeoZozmaε Leoθ Leoζ LeoRegulus is the brightest [See Link]
Is rigel the Brightest Star?
No, Sirius is the brightest star in the night sky. Rigel is one of the brightest stars in the constellation of Orion.
Is blue the brightest color of stars?
No, blue is not the brightest color of stars. The brightest stars often appear white or yellow in color. The color of a star is determined by its temperature, with the hottest stars emitting blue light.
