An astronomical unit (AU) is defined as the average distance between     the solar system and Alpha Centauri     the Earth and the Moon     the Milky Way Galaxy and the Andromeda Galaxy     the Earth and the Sun

Q: The distance to Capella is 42.34 light years. Convert this distance to astronomical units

A: To convert the distance to Capella from light years to astronomical units (AU), we need to know the…

Q: Some thing that is 50 km away has an angular size of five arc seconds how tall is the object write…

A: Angular size, θ = 5 second of arc Distance, r = 50 km = 50×103 m Consider height is h.   First…

Q: Why is it not possible to find out what's going on in our nearest star within the span of 24 hours?

A: Einstein's special relativity explains how speed affects mass, time, and space. As per special…

Q: Stars begin their life cycle in a O black hole O nebula O nova O supernova

A: Answer:) star begin their life cycle in a nebula

Q: What is the distance between Antares and Sabik? 100.0 light years 186.3 light years 469 light…

A: To give : distance between Antares and Sabik

Q: Suppose we find an Earth-like planet around one of our nearest stellar neighbors, Alpha Centauri…

A:

Q: An astronomical unit (AU) is defined as the average distance between the solar system and…

A: In the given problem we have to defined an astronomical unit AU.

Q: How fast do gravity waves move?   3,000 km/s         30,000 km/s         30,000,000 m/s         at…

A: Gravitational waves are first detected by LIGO (Laser Interferometer Gravitational-Wave Observatory)…

Q: The number of stars in the Milky Way Galaxy is approximately

A: Number of stars in Milky way galaxy

Q: given: a (distance to center of galaxy in AU) = 1,717,914,439 AU P (suns orbital period in years)…

A: Given: a (distance to center of galaxy in AU) = 1,717,914,439 AU P (suns orbital period in years) =…

Q: Describes the aurora, Describes the approximate size of Aurora, Describes the approximate distance…

A: Given, Aurora, size of Aurora and Distance from the earth

Q: 25 Which model below best represents the relative sizes of celestial objects from largest to…

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Q: Put these components from largest to smallest 1. comet 2. star 3. galaxy  4. nebula 5. planet…

A: Celestial bodies: All the objects like stars, planets, and comets floating across the vast space are…

Q: Which of these correctly compares the masses of different objects in the universe O A moon has less…

A: Correctly compared statement is: Moon has less mass then a star and more mass then the planet it…

Q: 1 million kilometers can be expressed in scientific notation as:  10x10^6 km  10x10^-6 km none of…

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Q: an absolute magnitude of -3 is more luminous than an  absolute magnitude of-8.

A: Given, Absolute magnitude of objects

Q: What causes the location of the constellations to change throughout the NIGHT?   Group of answer…

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Q: How many parsecs are there in 212 light-years?

A: We know that 1 light year = 0.3066 parsecs

Q: Part A How much work is done by each of the three forces? Express your answers using three…

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Q: Put these in order from smallest to largest Universe Galaxy Solar system Distance between earth and…

A: Here we arrange these things on the bases of their size in increasing order.

Q: Our solar system is approximately 10 billion km across. This diameter can be also be expressed as:…

A: Diameter of our solar systemD= 10 billion km

Q: 4 2.

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Q: The sun is the center of our solar system. Choose three details that go with the main idea. The…

A: A red giant star star may be a dying star within the last stages of stellar evolution. in just a…

Q: Sun Planet X Moon

A: Given: The diameter of the sun=796000 mi Radius rs=7960002=398000 mi The diameter of Moon=2731 mi…

Q: Compare the values of the number of grains of sand in all earth’s beaches with the number of stars…

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Q: What is the distance in light years (ly) to Alkaid? 12 ly 104 ly 55 ly 4 ly

A:

Q: Most of the dark matter in a galaxy is located in a galaxy's  (hint: one word) which allows the…

A: It is a fill in the blank.

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.