We need to directly measure the spectral type in order to determine the surface temperature of a star.
<h3>How do you find the properties of a star?</h3>
Astronomers can determine the temperature of a star by looking at its color and spectrum. The apparent brightness of a star describes how luminous it looks to us. The brightness of a star tells us how bright it really is. The luminance can be determined using both the perceived brightness and the distance.
A star's luminosity, or the total amount of energy it emits each second, is determined by two factors: The stellar photosphere's "Effective Temperature," T. the star's total surface area, which is influenced by its radius, R.
Because it controls how much fuel a star has and how quickly it burns it, a star's mass is its most fundamental characteristic. The majority of a star's life is spent burning hydrogen into helium in its core, which generates energy. The star needs to achieve a balance between gravity and outward pressure in order to continue to be "alive."
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4. hyperdermis is not a layer of skin
Answer:
1.35×10⁻⁷ m
37.278 mi/My
Explanation:
Speed of the tectonic plate= 6 cm/yr
Converting to seconds
![6=\frac{6}{365.25\times 24\times 60\times 60}](https://tex.z-dn.net/?f=6%3D%5Cfrac%7B6%7D%7B365.25%5Ctimes%2024%5Ctimes%2060%5Ctimes%2060%7D)
So in one second it will move
![\frac{6}{365.25\times 24\times 60\times 60}](https://tex.z-dn.net/?f=%5Cfrac%7B6%7D%7B365.25%5Ctimes%2024%5Ctimes%2060%5Ctimes%2060%7D)
In 71 seconds
![71\times \frac{6}{365.25\times 24\times 60\times 60}=1.35\times 10^{-5}\ cm](https://tex.z-dn.net/?f=71%5Ctimes%20%5Cfrac%7B6%7D%7B365.25%5Ctimes%2024%5Ctimes%2060%5Ctimes%2060%7D%3D1.35%5Ctimes%2010%5E%7B-5%7D%5C%20cm)
The tectonic plate will move 1.35×10⁻⁵ cm or 1.35×10⁻⁷ m
Convert to mi/My
1 cm = 6.213×10⁻⁶ mi
1 M = 10⁶ years
![6\times 6.213\times 10^{-6}\times 10^6=37.278\ mi/My](https://tex.z-dn.net/?f=6%5Ctimes%206.213%5Ctimes%2010%5E%7B-6%7D%5Ctimes%2010%5E6%3D37.278%5C%20mi%2FMy)
Speed of the tectonic plate is 37.278 mi/My