An astronomer has been observing two Cepheid variable stars over the course of a month. Both variable stars have the exact same
period of pulsation. Star A is twice as bright as Star B. Which of the following statements most accurately reflects the relationship between the astronomer (on Earth) and both Cepheid variable stars? Stars A and B have the same luminosity, but Star A is closer to Earth than Star B.Stars A and B have the same luminosity, but Star B is closer to Earth than Star A.Stars A and B are both the same distance from Earth, but the luminosity of Star A is greater than Star B
The luminosity of both the stars is same star A is closer to the planet Earth as compared to star B.
Explanation:
From the mentioned case we can infer that the most accurate relation between the stars and the astronomer on earth observing for over a period is that the luminosity of the stars is same.
The more drawn out the pulsation time frame, the more brilliant the star. The period-luminosity connection for old style Cepheid was found in 1908 by Henrietta Swan Leavitt in an examination of thousands of different stars in the Magellanic Clouds.
Eruption with low silica tends to be nonexplosive. The type of lava is Basaltic, flows easily because of low viscosity (low gas content- originates in the mantle). This type of lava comes from shield volcanoes (low angle slopes and gentle)- eg. Manua Loa Volcano and Hawaii.
Both the inner and outer planets must have created using an intense amount of force and collision
Explanation:
Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. The positions of the planets might have shifted due to gravitational interactions.
