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Why doesn't a star expand or collapse during the main sequence?
A star remains relatively constant in size because the force of gravity is in equilibrium with the pressure caused by the fusion at the core.
How does the movement of earth cause the apparent daily and annual movement of the sun and star?
The earth is on a constant rotation and coincides with patterns of other stars as well as the sun and moon. Movement is natural in our atmosphere and always occurs.
Why do stars rotate?
Stars appear to twinkle. The density of air affects how light bends as it passes through the atmosphere. When patches of air of different density come between a star and our eyes, we see different rays of light coming from slightly different parts of the star. The constant movement of air in the atmosphere means stars seem to twinkle.
What is a large star of high luminosity?
A good example of a medium size star is the Sun, which is very average. Luminosity is measured by the star's absolute magnitude, which is the magnitude seen from a standard distance of ten parsecs (32.6 light-years), and the Sun's absolute magnitude is +4.7. A factor of 100 increase in luminosity corresponds to 5 magnitudes less (larger magnitudes mean dimmer stars). The brightest stars have absolute magnitudes around -7.
What color star is hotter a red star of a blue star?
The red star is the coolest and the blue star is the hottest
Who in Julius Caesar states that he is constant and cannot be moved?
Caesar. "I am as constant as the Northern star."
Who is the north star compared to?
Someone who is constant.
What did Caesar compare the firmness of his decision to banish Publius Cimber?
The North Star
How would you work out the Hubble constant if the earth is 12.5 billion years old?
The Earth is not 12 billion years old. It is more like 5 billion years old. Hubble's constant cannot be determined from the age of the Earth. Hubble's constant describes how fast the universe is expanding. It can be determined by looking at the redshifts of stars that are a known distance away. From the redshift, one can determine the velocity of the star. Then Hubble's constant is defined as follows: v=Hd where v is the velocity of the star, H is Hubble's constant and d is the distance to the star. The current accepted value of Hubble's constant is about 71 km/s/Mpc.
What are similarities between true love and the North Star?
They are both constant and unchanging. Like the North Star, true love is a steadfast guide in one's life.
Why does orbital distance change?
Orbits are shaped like an ellipse, with the star at the focus. An ellipse does not have a constant radius.
The constant outward release of tiny particles caused by a star's energy production is called?
stellar wind
The constant outward release of tiny particles caused by a star's energy production is called .?
stellar wind
Why the sun considered as a star?
The sun is considered a star because the sun IS a star. It is a huge ball of hot gases undergoing constant nuclear reactions, and releasing gigantic amounts of light, heat and various particles.
What is the meaning of these it is a star to every wandering bark?
This is a phrase taken from Shakespeare's Sonnet 116. The term "bark" refers to a sea-vessel, a ship. The star to which this phrase refers is the "North Star", the star by which sailors would orient themselves in lieu of a compass. Therefore, the phrase is speaking of something that is true, constant, and ever-dependable in the midst of struggle or confusion in life. In Shakespeare's Sonnet 116, this constant he is referring to is Love.
Why doesn't a star expand or collapse during the main sequence?
A star remains relatively constant in size because the force of gravity is in equilibrium with the pressure caused by the fusion at the core.
Is david bromsted gay?
oh my goodness yes. he's even admitted it on the first season of, design star, when he was a constant.
