Why does the orbital period of a binary star depend on its mass?
Q: Dinary star system is observed orbiting with a period of 20.0 years, at an average distance of 5.0…
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Q: In a binary star system, the average separation between the stars is 4.0 AU, and their orbital…
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Q: Consider two identical stars, A and B. Star B is 10 times farther away than star A. What is the…
A: Two identical stars A and B are given which are at different distances.
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: If a star is located at 62.5 pc and has an apparent magnitude of 6 what is it absolute magnitude?
A: The brightness of a star is determined by its composition and distance from the Earth. There are two…
Q: Two stars are in a binary system. One is known to have a mass of 0.700 solar masses. If the system…
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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: A star has a parallax of 0.8 seconds of arc. What is the distance of the star?
A: Parallax can be defined as the change in the position of an object due to a change in the observer's…
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 certain binary system consists of two stars that have equal masses and revolve in circular orbits…
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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: 3. The Sun has an apparent visual magnitude of my = -27 and is 150 × 106 km from the Earth. If the…
A: Given: Let us consider the given data, mV=-27 Distance, d=150×106 km 1 pc=3.09×1016 m To find:…
Q: Favorite Star Polaris is 132 pc from Earth and has an apparent magnitude of 2.5. What is its…
A: When the brightness of a star is measured there are two ways, Apparent and absolute magnitudes.…
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: СМ m2 m 12
A: Given, r2 = 2r1 consider the center of of the system is at the origin. mass of binary star 1 is m1…
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?
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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: The greatest parallax angle of any star outside our solar system as viewed from Earth is Group of…
A: 1)We know that the parallax angle for the distant star is smaller, and the parallax angle for the…
Q: is
A: The relationship between apparent visual magnitude(m), Absolute visual magnitude(Mv) and distance(d)…
Q: What causes a star to move off the main sequence?
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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: What is the total mass of a visual binary system if the average separation of the stars is 8 AU and…
A: A binary system is formed when two astronomical objects come close enough to start orbiting each…
Q: Which of the following statements is CORRECT in terms of the star's absolute magnitude??
A: (1) Kepler's Law for Planetary motion states Every planet orbits in an elliptical shape with the…
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: White Dwarf Size II. The white dwarf, Sirius B, contains 0.98 solar mass, and its density is about 2…
A: It is given that, M=0.98 solar mass=0.98×1.989×1030 kg=1.95×1030 kgρ=2×106 g/cm3=2×106×103…
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: 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 lifetime on the main sequence of a star whose surface temperature is 6500° K and whose…
A: Denote Stefan’s constant by σ. Evaluate the star’s luminosity (L) from its given temperature (T) and…
Q: What is the parallax of a star that is 150 pc from Earth?
A: The parallax is given by
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: A star has an apparent magnitude of 10 and an absolute magnitude of 2.5. How far is it?
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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: The total intensity of light measured on earth, from an ecliptic binary, is plotted in the figure as…
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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…
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