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How does the sun compare to other stars in terms of surface temperature apparent absolute magnatuide and size?
Temperatures in the sun's middle atmosphere, the Chromosphere are 4,225°C
to 6,000°C.
In the sun's outer atmosphere, or Corona, temperatures may reach 2,000,000°C, while stars are related to colour:
Stars that have the lowest surface temperatures (below 3,500 °C)are red.
Stars that have the highest surface temperatures (above 25,000 °C) are blue.
The Apparent Magnitude of the sun is less than the other stars. Some stars are actually more luminous, or brighter than the sun is. If these stars are located far from Earth, they may not appear bright to us.
Using only their eyes, ancient astronomers described star brightness by magnitude. They called the brightest stars they could see 'first magnitude' and the faintest stars they could see 'sixth magnitude'. Astronomers using telescopes see many stars that are too dim to see through the naked eye.
Rather than replacing the magnitude system, astronomers added to it.
Today, the brightest stars have a magnitude of about -2. The faintest stars that we can see through a telescope have a magnitude of +30.
Sirius the brightest star in the night sky has an apparent magnitude of -1.46.
To the naked eye, the sun has apparent magnitude of -26.8, even though it is not as luminous a star as Sirius is. The sun is simply located closer to Earth.
The apparent magnitude of the sun is -26.8. However the absolute magnitude of the sun is +4.8 which is typical of many stars.
Now compare the sun, which is located 8.3 light minutes from Earth, to Sirius, which is located 8.6 light years from Earth.
Sirius has an apparent magnitude of -1.46 and an absolute magnitude of +1.4. Therefore, Sirius is much more luminous than the sun is.
What else can I help you with?
What temperature scale must be used to compare temperature and kinetic energy?
An absolute scale, such as Kelvin.
How does the brightness of a quasar compare with that of a large galaxy?
I assume when you mean brightness, you mean apparent magnitude as opposed to absolute magnitude. The quasar 3C 273 has an apparent magnitude of about 12.8 whereas the brightest galaxy - the Large Magellanic Cloud has an apparent magnitude of 0.9. However, in absolute magnitudes, 3C 273 has an absolute magnitude of about -26.7 very similar to our own Sun.
What is a stars brightness as if it were a standard distance?
A star's brightness at a standard distance is referred to as its apparent magnitude. This standard distance is 10 parsecs (32.6 light-years) from Earth. Apparent magnitude allows astronomers to compare the brightness of stars as seen from Earth, regardless of their actual distance from us.
Compare and contrast apparent magnitude and absolute magnitude?
Apparent magnitude is the brightness of a celestial object as seen from Earth, taking into account distance and extinction from the atmosphere. Absolute magnitude measures the intrinsic brightness of a celestial object if it were placed at a standard distance of 10 parsecs (about 32.6 light-years) away from Earth. In essence, apparent magnitude is how bright an object appears from Earth, while absolute magnitude is how bright it would be at a standardized distance.
How can i compare and contrast the apparent and absolute magnitude of stars?
Apparent magnitude measures how bright a star appears from Earth, influenced by its distance and intrinsic brightness, while absolute magnitude reflects a star's true brightness at a standard distance of 10 parsecs. To compare the two, consider that a star may have a high apparent magnitude (appearing bright) if it's relatively close, even if it has a low absolute magnitude (inherently dimmer). Conversely, a distant star with a high absolute magnitude may appear faint from Earth. Analyzing both magnitudes helps astronomers understand a star's distance, size, and luminosity.
Compare apparent magnitude and absolute magnitude?
Apparent magnitude is a measure of how bright a star appears from Earth, taking into account its distance and how much light it emits. Absolute magnitude, on the other hand, is a measure of a star's intrinsic brightness if it were observed from a standard distance of 10 parsecs. It helps in comparing the true brightness of stars regardless of their distance from Earth.
Why is absolute magnitude of some stars greater than their apparent magnitude for stars?
The apparent magnitude is what we see, and this can be measured directly. The absolute magnitude must be calculated, mainly on the basis of (1) the apparent magnitude, and (2) the star's distance. So, to calculate the absolute magnitude, you must first know the star's distance.
How can tell how bright a star really is?
Astronomers define star brightness in terms of apparent magnitude (how bright the star appears from Earth) and absolute magnitude (how bright the star appears at a standard distance of 32.6 light years, or 10 parsecs).
How does the absolute value of -7 compare to the absolute value of 7?
They are the same. the absolute value is always positive
How does the absolute value of 6 compare with the absolute the value of 5?
It is one more.
Can you compare two complex numbers?
You can compare their magnitude (absolute values) but not the numbers themselves.
What is the suns absolute magnitude from earth?
You cannot ask for an absolute magnitude and specify the distance, as the absolute magnitude is derived from a set distance of 32.616 light years.At that distance, the absolute magnitude of the Sun is +4.83From Earth the apparent magnitude -26.74
