5. You are traveling from star A to the identical star B that is 5.0 A...
You are flying your personal rocket craft at 0.9 c from Star A to Star B. The distance between the stars, in the stars’ reference frame is 1.0 ly. Both stars happen to explode simultaneously in your reference frame at the instant you are exactly halfway between them. (a) Do you see the flashes simultaneously? If you do, explain how. If you do not, which flash do you see first and what is the time difference between the two flashes?...
Astronomy Ranking Task: Star Evolution & Lookback Time Exercise #1 Description: Imagine that the four stars listed below all became Main Sequence (MS) stars at exactly the same time 10 billion years ago but in different locations of the universe. Cosmo Star is an O spectral class star with a MS lifetime of 3 million years. Its life will eventually end as a SN type II and become a black hole. Cosmo Star is located in a galaxy 10 billion...
Need help with this problem. Thanks. Binary Stars Q1) A binary star system has a distance from Earth of 42.2 light years. The distance between the stars is 1.08 x 101 m and the rotation period is 104 days. Assume equal masses of the stars, and circular orbits (centre of mass of the system is at rest relative to the Earth). a) Calculate the speed of the stars relative to the centre of mass of the system. Further assume the...
ANSWER 3A, B, AND C! 3. The star system that is closest to the earth is Alpha Centauri. It is 4.37 light years away in Earth's reference frame. The fastest spacecraft humans have ever launched is New Horizons, which sent us sweet pictures of Pluto in 2015. It attained a speed of 45 km/s relative to the sun. That's fast, but even at this rate, interstellar travel is not practical. a) Traveling at 45 km/s, how long, in years, would...
Before leaving Alpha Centauri, you change from the shuttle to a light speed interstellar cruiser and head out deep into the galaxy to visit another binary star system - but this one is composed of dead stars! To occupy your waking travel time by reading about this star system in the "Outer Space Tourbook": Stars spend most of their lifetimes undergoing nuclear fusion in their cores, which is why they give off so much light. However, when the material necessary...
Suppose you decide to travel to a star 69 light-years away at a speed that tells you the distance is only 28 light-years. Part A How many years would it take you to make the trip? Express your answer using two significant figures.
123 Binary Stars 7) Imagine that you are watching a binary star system chtas they eaomntar. And I type main sequence star and a B-spectral type main sequence sta orbit. During this time, you are able to see the starst of the M-S mvedstars At another time, you see the B-spectral type star in at an entirely different time, you see that the B-spectretches showing M-spectral type star. In the space below, draw three would look like at the three...
You travel to a star 195 light-years from Earth at a speed of 2.90*10^8m/s . What do you measure this distance to be? units ly
I4 You travel to a star 185 light-years from Earth at a speed of 2.90×108 m/s . Part A What do you measure this distance to be? l = ??? ly
The nearest star to Earth is Proxima Centauri, 4.2 light-years away. Part A At what constant velocity must a spacecraft travel from Earth if it is to reach the star in 3.9 years, as measured by travelers on the spacecraft? Express your answer using two significant figures. v=_____c Part B How long does the trip take according to Earth observers? Express your answer using two significant figures. t=_____ years