If a globular cluster contains 1 million stars and is 25 pc in diameter, what is the average distance between the stars? ( what share of the volume of the cluster surrounds the average star?)
Q: If the RR Lyrae stars in a globular cluster have average apparent magnitudes of +19, how far away…
A: According to distance magnitude relation, d=10mv-Mv+55mv=apparent magnitudeMv=absolute magnituded is…
Q: if the stars at the turnoff point in a star cluster have masses of about 9 M⊙, how old is the…
A: Mass of the star at the turn off point is 9 times of mass of the sun.
Q: In a binary star system, the average separation between the stars is 4.0 AU, and their orbital…
A:
Q: If interstellar dust makes an RR Lyrae variable star look 7 magnitudes fainter than the star should,…
A:
Q: If an X-ray binary consists of a 17-solar-mass star and a neutron star orbiting each other every…
A: The expression for the Kepler’s third law is as follows: MA+MB=a3p2 1
Q: A molecular cloud is 22 pc in diameter and is located 303 pc from Earth. What is its angular size on…
A:
Q: Describe the forces acting on a star during the main sequence period of its life?
A: A star has its gravity, and due to the hot core of a star, it creates pressure within the gas. Two…
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: An astronomical image shows two objects that have the same apparent magnitude, i.e., the same…
A: Let the luminosity of the star is Ls= LoLuminosity of Milky Way galaxy, Lm=1011LoLuminosity of…
Q: Using the center-of-mass equations or the Center of Mass Calculator (under Binary-Star Basics,…
A:
Q: If interstellar dust makes an RR Lyrae variable star look 2 magnitudes fainter than the star should,…
A:
Q: What critical event must occur in order for a protostar to become a star?
A: A very young star that is yet gathering mass from the parent molecular cloud is called a protostar.…
Q: Match the stars to their typical lifetimes on the main sequence. O Instructions 15 solar masses 1…
A:
Q: If interstellar dust makes an RR Lyrae variable star look 5 magnitude fainter than the star should,…
A: Given the magnitude get fainter by 5. Therefore,
Q: If the RR Lyrae stars in a globular cluster have average apparent magnitudes of +19, how far away…
A: From the figure, absolute magnitude of RR Lyrae star is 0.75. Using the Magnitude-Distance formula,…
Q: What characterizes a star of spectral-type A in the visible part of the spectrum? Strong lines…
A: Spectral type A has wavelength ranging from 290-390 nm. They have very strong hydrogen lines.
Q: The giant star Betelgeuse has an angular diameter as observed from Earth of about 0.05 arc seconds.…
A: Solution:-
Q: Let’s say you’re looking for extrasolar planets. You observe a star that has a spectral shift in the…
A: Write down the values using suitable variables. Here, c signifies the speed of light in a vacuum.
Q: If the two stars orbit in a such a way that the big star is 4 AU from the center of the mass and the…
A: Given:distance of larger star from COM, ra = 4 AUdistance of smaller star from COM, rb = 12 AUtotal…
Q: Describe the relationship between the concept of hydrostatic equilibrium and the interior structure…
A: On each and every star in the astrophysics, there are always two forces acting. The first force is…
Q: Which star in the table below has the least surface temperature? Star Name d (parsecs) Parallax…
A: Since, distance of the star in terms of Parallax is, d=1parallax (in arc-sec)parsecs Now from…
Q: If a globular cluster contains 2 million stars and is 28 pc in diameter, what is the average…
A: This problem can be solved by first calculating the average volume reserved for one star and then…
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: Globular clusters contain no stars more massive than the Sun. Which of the following seems like the…
A: First, we are aware that no stars more massive than the Sun can be found in globular clusters. Any…
Q: If we plot the apparent brightnesses of stars in a globular cluster versus their surface…
A: Given, If we plot the apparent brightness of stars in a globular cluster versus their surface…
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: Suppose the distance to a star is doubled. Then the luminosity of the star is O Remains the same,…
A: Luminosity and apparent brightness are 2 different things. Luminosity is unique property of body and…
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: Consider three main sequence stars: Star A is 12000 K, Star B is 6000 K, Star C is 3000 K. What are…
A: Given, Star A = 12000 K temprature Star B = 6000 K temprature Star C = 3000 K temprature So the…
Q: If two stars, star A and star B, have equal luminosities, but star A has half the surface…
A: luminosities of star is proportional to R2T4 T is temperature and R is radius
Q: If an open cluster contains 450 stars and is 21 pc in diameter, what is the average distance between…
A: Given Number of stars in an open cluster (n) = 450 Diameter of the cluster Dclu = 21 pc…
Q: If a globular cluster contains 2 million stars and is 30 pc in diameter, what is the average…
A: A Globular cluster is a cluster of old stars, only a few years younger than the Universe itself…
Q: The star Firefly is located 3.0 pc away. If it had an absolute magnitude of 13.0, which value below…
A: Write the given data. d=3AbsM=13
Q: The disk of the Milky Way galaxy contains roughly 200 billion (1 billion = 109 ) stars. The disk is…
A: The milky way galaxy consists of a disk of about 100000 ly diameter and a thickness of about 1000 ly…
Q: Use the Luminosity Distance Formula. Find the distance to a star (L=2.2x1026 watts) whose apparent…
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: Calculate the absolute magnitude of a star at a distance of 6 pc with an apparent magnitude of 3.
A: The apparent magnitude and absolute magnitude are two terms used to define the brightness of a star.…
Q: What is the size of a star with a temperature three times as hot as the sun and the luminosity of…
A:
Q: Consider the following question: How many times bigger than the sun would a cool star (4000K) have…
A:
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: Place the following events in the formation of stars in the proper chronological sequence, with the…
A: The question can be solved as follows
Q: The Orion Nebula is about 20 light-years (20 × 1018 cm) across, enclosing a roughly spherical area…
A:
Q: O stars
A: In the H-R diagram we see that stellar masses decrease downward along the main sequence. At the…
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: If an X-ray binary consists of a 10-solar-mass star and a neutron star orbiting each other every…
A: from the equation relating the period of orbit P and the semi-major axis of orbit a, we have…
Q: Finally estimate the lifetime of an M0 spectral type star if the total mass of the star is M =…
A:
Q: If the RR lyrae stars in a globular cluster have average apparent magnitudes of +15, how far away…
A: The apparent magnitude (mv) of the given star is 15. The absolute magnitude (Mv) of a given star is…
Q: If a neutron star has a radius of 12 km and rotates 1,352 times a second, what is the speed at which…
A: radius of neutron star (r) = 12 km = 12000 m angular speed (ω) = 1352 revolutions per second
If a globular cluster contains 1 million stars and is 25 pc in diameter, what is the average distance between the stars? ( what share of the volume of the cluster surrounds the average star?)
![](/static/compass_v2/shared-icons/check-mark.png)
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 5 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)