The star Betelgeuse is about 197 pc away. How far is Betelgeuse in ly ? In meters? A. 642.2 ly= 2.08 x 10^18 meters B. 60.4 ly = 5.72 x 10^14 meters C. 642.2 ly = 6.08 x 10^15 meters D. 642.2 ly = 6.08 x 10^18 meters

Q: A (relatively) nearby K-type star known as Nu? Canis Majoris has an estimated orbital radius of…

A: Given Data: Orbital radius, r=2.3344×108 km=2.3344×1011 m Time period, T=736.9…

Q: GMm F r2 F,(r = R) The surface gravity g = of a body is. The acceleration due to gravity that an…

A:

Q: The traditional theory of the formation of our galaxy CANNOT explain   a. the existence of the disk…

A: a. The existence of the disk of the galaxy

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

A:

Q: The sun is about 8 kpc from the center of the galaxy. A kpc or kiloparsec is equal to   a. 10…

A: A kpc or kiloparsec is equal to the 1000 parcec Here,  In the option this value is not given

Q: A star is observed to have a parallax of 0.05". If we were to send a radio signal towards this star…

A:

Q: The Messier Catalog is a. a listing of all the stars within the Local Bubble b. a list of all the…

A: The Messier catalog is a list of 110 commonly found objects in the night sky that can be easily…

Q: What type of star has the longest life span? a. O b. K c. B d. A e. M

A: What type of star has the longest life span?

Q: The gas and dust cocoon surrounding young stars   a. is blown away when the young stellar surface…

A: In the initial stage of star formation i.e protostar phase the young star is surrounded by dust and…

Q: Which star in the table below has the greatest diameter?     Star Name d (parsecs) Parallax…

A: d. 58 Ori

Q: Astronomers think of pulsars not as pulsing objects, but rather like a(n)   a. Cepheid variable.…

A: A Cepheid variable is a class of stars, that varies in its apparent magnitude values over a period…

Q: The approximate diameter of the disk of the Milky Way is   a. 8.0 A.U.   b. 8.0 light-years.   c.…

A: To determine diameter of the disk of the milky way

Q: 2. 60 million years ago, an asteroid hit the Earth and killed every T-Rex on Earth. That same day, a…

A: To estimate the mass of the star that left the main sequence 45 years ago, let's break down the…

Q: The large black hole at the center of our galaxy is estimated to be a. 3.7 solar masses. b.…

A: Given : Asked to choose the correct option for the mass of the large black hole present at the…

Q: A star with an original mass of 9MSun undergoes an active period where it experiences mass loss via…

A: Given data: Mass of the star, Mstar=9Msun Time, t=1.1 million years = 1.1×106 years New mass,…

Q: 1.004 1.002 1.000- 0.998 0.996 0.994 0.992 0.990 10 20 30 40 50 t-2458543 [BJD] From the data,…

A: A: Orbital period of the planet can be estimated from the plot. B: The orbital distance of the…

Q: 1.  A planetary nebula has an angular diameter of 76 arc seconds and a distance of 5100 ly. What is…

A: 1.Small angle Formula:D=αd2.06×105where, D is the linear diameterα is the angular diameter=76 arc…

Q: V. A simple experimental set up is shown in the following figure. Masses of blocks MA, and MB are…

A: Given data: MA=50 kg. MB=20 kg. Draw a free-body diagram of the given system. Free body equation…

Q: Given that a pair of stars are found to be orbiting each other with a period of 11.86 [yrs] and a…

A:

Q: The first stars to form in our galaxy a. had circular orbits. b. had highly elliptical…

A: Population 1 stars are the newer and younger stars.

Q: 1. Consider our Sun - it is in orbit around the center of our Milky Way Galaxy. The velocity of the…

A: The Sun orbits around the center of the milky way with an orbital velocity of 250 km/s.  Considering…

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.