Calculate the absolute magnitude of a star at a distance of 6 pc with an apparent magnitude of 3.
Q: In a binary star system, the average separation between the stars is 4.0 AU, and their orbital…
A:
Q: 8) Star A has an apparent magnitude of 2.5 and star B has an apparent magnitude of 3.9. Calculate…
A: When studying stars astronomers use two different magnitudes, apparent and absolute magnitude.…
Q: Put the steps of the life cycle of a star in order.
A: Required : Steps involved in star cycle.
Q: If star B is a 5th magnitude star and star C is 9th magnitude, what is their brightness ratio? Light…
A: Apparent magnitude of the star m is the measure of brightness of star from earth. Brightness is also…
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: The giant star Betelgeuse has an angular diameter as observed from Earth of about 0.05 arc seconds.…
A: Solution:-
Q: the parallax angle of a star to be 0.002 arc-seconds. what would the distance be to this star?
A: Given, Parallax angle, p=0.002 arc-seconds
Q: If a star has a parallax of 0.016 arc second how far is it?
A: Parallax is the shift in the apparent position of stars when observed from different positions. This…
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: If a star's absolute magnitude value is significantly larger than its apparent magnitude value…
A: Absolute magnitude Mv: The magnitude that a star is expected to have if it were at a distance of 10…
Q: A star has an apparent magnitude of 10.0 and an absolute magnitude of 2.5. How far away is it?
A:
Q: Consider two stars on the main sequence, A and B. Star A has a mass of Мо Star B has a mass of 0.2…
A: Solution attached in the photo
Q: is
A: The relationship between apparent visual magnitude(m), Absolute visual magnitude(Mv) and distance(d)…
Q: If a star has an apparent magnitude equal to its absolute magnitude, how far away is it in parsecs?
A: Given that :Apparent magnitudemp=Mv
Q: Consider two stars on the main sequence, A and B. Star A has a mass of 9. Мо Star B has a mass of…
A: Solution attached in the photo
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: You observe a star with an apparent magnitude mv=12 at a distance of 1 kiloparsec. What is this…
A: The relation between apparent magnitude, absolute magnitude, and distance of star in parsec is given…
Q: Why does the orbital period of a binary star depend on its mass?
A: A binary system is formed when two massive astronomical objects start orbiting each other around a…
Q: A distant F0 star is 6.3 times less bright than a nearer F0 star which has a parallax of 0.2…
A: Given: p=0.2 arcsec The distance of the distant F0 star from the nearer F0 star is : d=1p=10.2=5…
Q: In a laboratory, the Balmer-beta spectral line of hydrogen has a wavelength of 486.1 nm. If the line…
A: vr=cλ0-λλ0
Q: Given star A with apparent visual magnitude mv = 6.5, and star B with mv = 4.4, what is the flux…
A: Given, star A with apparent visual magnitude mA = 6.5, and star B with mB = 4.4, the flux ratio…
Q: You've just discovered a new X-ray binary, which we will call Hyp-X1 ("Hyp" for hypothetical). The…
A:
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: 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 an apparent magnitude of 6 and an absolute magnitude of 3. How far is the star from…
A: The distance of a star can be measured from its absolute and apparent magnitude. The apparent…
Q: You measure a star to have a parallax angle of 0.12 arc-seconds What is the distance to this star in…
A: Write the given values of the problem- Parallax angle=0.12 arc-second
Q: The main-sequence age of a star of 1M⊙ is about 1010 years. What is the main-sequence age of a star…
A: Answer the following question is
Q: A star has an apparent magnitude of 10 and an absolute magnitude of 2.5. How far is it?
A:
Q: Calculate the mass of a star having a diameter of 6E5 km and an average density of 1.1 g/cm3
A: It is given that,
Q: What is the life expectancy (in years) of a 10 M⊙ main-sequence star? What is the life expectancy…
A: Required : The life expectancy of stars.
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- Calculate the luminosity of the star with an apparent magnitude of 2. Given the Sun has an apparent magnitude of -26.57 and 3.9 × 1026 W luminosity.If a star has a parallax of 0.050 arc second, what is its distance in pc?A star with a trigonometric parallax of .02 arcseconds has a distance of O2.0 light years. 50 pc. 4 kpc. 20 pc. O need more information (magnitudes)
- What is the total mass of a visual binary system if the average separation of the stars is 7.1 AU and their orbital period is 12 years?What is the total mass of a binary star system with P = 20 years and a = 10 AU? a. 2 solar masses b. 2.5 solar masses c. 0.5 solar mass d. 80 solar masses e. 0.4 solar massConsider two stars on the main sequence, A and B. Star A has a mass of 4 M⊙. Star B has a mass of 0.8 M⊙. By what factor is the luminosity of star A greater than the luminosity of star B?
- Betelgeuse has an effective temperature of 3500 K, an angular diameter of 0.045'', and a radius of 140 parsecs. Find the physical radius and luminosity of the star.The a star system contains two stars, one with apparent magnitude m = 10.5 and the other with m = 10.9. What is the combined apparent magnitude of the two stars?