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What is the degree of the earths tilt and what is it pointing towards?
The current angle of tilt is 23.5 degrees. The axis of this tilt points to the Pole Star (Polaris) (North). However, this axis undergoes precession. That is the axis 'wobbles'. From its current value is is reducing to about 22.1 degrees. a, then it will increase again to about 24.5 degrees. This takes about 40,000 years to complete. See Milutin Milankovic, who also proposed other orbital movements of the Earth. All of which will affect the climate.
Name the stationary star?
There is no stationary star anywhere in the universe.
What is the nerrest star to earth?
That would be the Dog Star: Sirius.
What orbits a star and reflects the stars light?
Many planets around each star reflect the star's light. For example think about Earth's orbit around the sun, a big star
What makes a star contract?
A star contracts when the equilibrium of a star unbalances itself when the star isn't putting out enough outward force (due to a decrease in nuclear fusion and the making of helium), and the gravitational forces push itself in, causing star contraction.
What effect will a nova have on a star?
It will destroy it in a cataclysmic explosion.
How do you describe a variable star?
A variable star is a star whose brightness as seen from Earth that fluctuates.
Heavenly body with periodically changing luminosity?
Variable stars are those that have changing luminosities. There are two kinds of variable stars: intrinsic (where the variation is due to physical changes in the star), and extrinsic (where the variation is due to the eclipse of one star by another, or due to the effect of stellar rotation). They can be further divided into five different classes: the intrinsic pulsating, cataclysmic, eruptive variables, extrinsic eclipsing binary, and rotating stars.
How do you describe a variable?
A variable star is a star whose brightness as seen from Earth that fluctuates.
How do you describe variable stars?
A variable star is a star whose brightness as seen from Earth that fluctuates.
When do you say that stars are dead?
When the star no longer undergoes nuclear fusion.
When was American Association of Variable Star Observers created?
American Association of Variable Star Observers was created in 1911.
How is the lifetime of a star comparable to stellar evolution?
Stellar evolution is the term for the changes a star undergoes during its lifetime.
A sudden eruption from the surface of a star such as the sun?
Solar Flare
Is stars shining an example of s continuous variable?
No, it is a continuous process but not a continuous variable. The magnitude of star-shine, across all stars is a continuous variable. The magnitude of a star's shine over time is a continuous variable.
What type of star is Markab?
A multiple variable star, I may not be right...
How old is a star?
A Supernova is not a particular star. A supernova is a cataclysmic event that occurs at the end of a high mass star life. They have been occurring for billions of years, and will continue to do so for billions more. Therefore it is not possible to put an age to it.
