Why does the orbital period of a binary star depend on its mass?
Q: Suppose the Sun was part of a binary star system with a period of 15 years and an average separation…
A: Given data Time period ,T=15 years=15×3.154×107 sec Radius, r=10 AU=1.496×1012 m
Q: Dinary star system is observed orbiting with a period of 20.0 years, at an average distance of 5.0…
A:
Q: Two stars are in a binary system. One is known to have a mass of 0.700 solar masses. If the system…
A:
Q: A star is observed to cross the meridian at an elevation of 67°, as seen from an observatory at a…
A:
Q: The figure below shows the radial velocity of a star plotted as a function of time over the course…
A: Required to find the position of the planet when it is moving at 18 km/s,
Q: Two stars are in a binary system. One is known to have a mass of 0.700 solar masses. If the system…
A:
Q: What is the most common type of star?
A: There are different types of stars in our universe. They are mainly categorized based on their mass,…
Q: Calculate the mass of a star having a diameter of 6E5 km and an average density of 1.5 g/cm3.…
A: We have : Density = masscolumeVolume of star = 43x π x r3Diameter of star = 6 x 105kmRadius of star…
Q: In the parallax method of determining stellar distances, the angle to a star is measured while che…
A: Let's assume b=1AU And distance between sun and alpha centaurie is d. θ=2.1x10-4…
Q: The velocities of the two stars are 28km/s and 13km/s, and their periods are both 16 years. Find the…
A: Formula Let period of a star is T, velocity is v, orbital radius is r and , mass is M, Now the…
Q: Astronomy) (Part A) White Dwarf Size II. The white dwarf, Sirius B, contains 0.98 solar mass, and…
A: Mass of the dwarf planet = 0.98 solar mass = 1.96 * 1033 gm…
Q: A Spinning Star has a period of rotation of T. Over a period of a million years, its radius…
A: Write the expression for the initial period of the given star, and solve for its initial angular…
Q: If a pulsar’s period is 0.05 seconds, how many times does it spin in one day?
A: Given data, Time period of the pulsar = 0.05 seconds
Q: What size star is the sun? O supergiant O medium O giant O white dwarf
A: The sun size is about 696340 km in radius and it's mass is 1.989*10^30 kg.
Q: What star has the largest stellar parallax as measured from opposite ends of the Earth's orbit about…
A: Parallax is the apparent displacement of an object because of a change in the observer's opinion.…
Q: The giant star Betelgeuse has an angular diameter as observed from Earth of about 0.05 arc seconds.…
A: Solution:-
Q: Which main-sequence star would be the least luminous? a. A b. B c. F d. G e. K
A: Answer:) option(a) A alpha century A is least luminous because its absolute magnitude (+4.4) which…
Q: Why does the luminosity of a star depend on both its radius and its temperature?
A: Luminosity is the radiant power emitted by star. The luminosity is measured in Watt or Joules per…
Q: A star has an apparent magnitude of 10.0 and an absolute magnitude of 2.5. How far away is it?
A:
Q: Which point in the stars orbit corresponds to the point marked in the radial velocity curve?
A: Required : The correct option.
Q: Two stars have the difference between their apparent magnitudes +5, so their apparent luminosity…
A: The difference between the apparent magnitude is given as m1-m2=+5
Q: What is the dependence of the intensities of stars on parallax? Hint: consider the inverse-square…
A:
Q: What causes a star to move off the main sequence?
A:
Q: A certain star is 13.7 times dimmer than a star with apparent magnitude m = 3.9. What is the…
A: We are given the ratio of brightness of stars. We are given the apparent magnitude of the brighter…
Q: What is the luminosity of a star having three times the radius of the Sun and a surface temperature…
A: The luminosity of a star is a measure of the total amount of energy that is radiated by a star per…
Q: Which type of star would be the largest? a. M b. O c. B d. K e. A
A:
Q: Raising a number in scientific notation to a power is easy: (5 x 105)2 = (5)² x (105)2 = 5 x 5 x 105…
A: Given data: Radius of sun (R) = 7×105 km Mass (m) = 2.0×1030 kg π = 3.14 Required: The volume in…
Q: The star Sirius has an apparent magnitude of -1.46 and appears 95-times brighter compared to the…
A: Part a: Magnitude in astronomy is defined as an index for the brightness of a star and is denoted by…
Q: Two stars are found to orbit each other once every 6.00 months. If the orbital radius (distance)…
A: According to Kepler’s third law, for a binary star system, we have the following relation between…
Q: Star A has an apparent magnitude of -1. Star B has an apparent magnitude of 3.5. Find BĄ/BB, where…
A:
Q: What is the orbital period of Proxima Centauri and alpha Centauri about each other if the alpha…
A: Kepler's law is used to describe planetary motion. Kepler's third law describes the…
Q: Which of the following will occur to our Sun at some point in the future? (Select all that apply)…
A: The sun does not have that much mass to be exploded as a supernova.
Q: In a laboratory, the Balmer-beta spectral line of hydrogen has a wavelength of 486.1 nm . If the…
A: Wavelength of (λ°) = 481.6 nm Difference of wavelength ∆ λ = λ- λ° = 486.1- 485.8 = 0.3 nm Speed of…
Q: A star is observed to have a parallax of 0.0015". What is the distance to the star in units of AU?
A: The distance to the star can be calculated using the formula: distance (in parsecs) = 1 / parallax…
Q: What is the parallax of a star that is 150 pc from Earth?
A: The parallax is given by
Q: If we view a star now, and then view it again 6 months later, our position will have changed by the…
A:
Q: How do you calculate the mass of a star?
A: To calculate mass of a single star is a difficult process however to calculate the mass of binary…
Q: A star has a distance of 40 pc. What is the parallax of the star?
A: The distance of a star and its parallax are related as, d=1/p, where, d= distance in parsecs, and…
Q: Which of the following is a true statement? A smaller diameter star can never have a smaller number…
A: The statement that is true among the options provided is:"A smaller diameter star can never have a…
Q: A star has an apparent magnitude of 10 and an absolute magnitude of 2.5. How far is it?
A:
Q: Using the center-of-mass equations or the Center of Mass Calculator (under Binary-Star Basics,…
A: Given: In this question, the given details are Consider the star 1 has m1=3.4 solar masses, and the…
Q: A star has a distance of 20 pc. What is the parallax of the star?
A: Stellar parallax is defined as the apparent change in an object's position due to a change in the…
Q: A less massive star will usually live longer than a more massive star O True O False
A: In star hydrogen is the fuel
Step by step
Solved in 3 steps
