Suppose that two identical stars (they have the same total light output) are located so that...
- Suppose that two identical stars (they have the same total light output) are located so that star A is at a distance of 5 pc and star B is at a distance of 25 pc from Earth. How will star B appear, compared with star A?
- A star is at such a distance that its apparent magnitude (m) is 10 magnitudes fainter than its absolute magnitude (M). How far away is it?
- Three stars have the following apparent (m) and absolute (M) magnitudes .Which star is farthest away Star A: M = 1.8,m = 3.8 Star B: M = 2.5 , m = 9.5 Star C: M = 7.6 , m = 15.1
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Suppose that two identical stars (they have the same total
light output) are located so that...
Two stars—A and B, with absolute magnitudes 3 and 8, respectively—are observed to have the same...
Two stars—A and B, with absolute magnitudes 3 and 8, respectively—are observed to have the same apparent magnitude. Which star is more distant, and how much farther away is it than the other?
Hi! So this table on the picture has star information needed. the queastion is: “A star...
Hi! So this table on the picture has star information needed.
the queastion is:
“A star whose apparent magnitude and absolute magnitude are
identical is licated at 10 persecs away from us (by definition).
Star C is at 10 pc. Of the other four stars, rank them from
closest, closer, farther, farthest. (HINT: figure out if a star
would be brighter or dimmer IF it were located at 10
persecs.)”
So on second picture were my answers, and i got...
Magnitude and distance modulus a) What is the absolute magnitude and distance modulus for each of...
Magnitude and distance modulus a) What is the absolute magnitude and distance modulus for each of the following stars: i)m=+5.0, d=200 pc ii) m=-3.5, d=7 pc iii) m=+6.8, p=0.003" (p is the parallax angle) b) The Sun has an apparent magnitude of -26.8. Calculate i)its absolute magnitude. ii) the apparent magnitude it would have at the distance of a Centauri (1.3 pc). iii) the apparent magnitude it would have if it were 2 kpc away.
4. Two stars are imaged by the same telescope/CCD system. If both stars are known to...
4. Two stars are imaged by the same telescope/CCD system. If both stars are known to be at the same distance from the Earth and the measured flux arriving at Earth from star B is 10x that from star A... A)What is the magnitude difference between these two stars? (ie., we want Am- m-m) B)Letting LJ be the luminosity of star A and Lg be that of star B, whet is the ratio of their luminosities: .A
Could one of the stars listed in the table above be an RR Lyrae star?
Cosmic DistancesDISTANCE MODULUS- For this lab, we will focus on two techniques that can be used to measure the distance modulus of objects in deep space - supernovas and Cepheid variable stars. Before we begin, though, we must understand what "distance modulus" means.- Read through the background material on distance modulus.- Use the distance modulus page to complete the following table:ObjectApparent Magnitude (m)Absolute Magnitude (M)Distance Modulus (m-M)Distance (pc)Star A2.410Star B516Star C1025Star D8.50.5- Could one of the stars listed in the...
The characteristic absorption spectra of two stars are shown. Indicated in each is a set of absor...
The characteristic absorption spectra of two stars are shown.
Indicated in each is a set of absorption lines due to interstellar
material between us and the stars. Using this information and the
spectral drawings shown below complete parts a - e of this
question.
a. The interstellar absorption lines appear more intense in the
spectrum of star A than star B. What does this mean in terms of the
number of absorbing atoms between the earth observer's line of
sight...
Help me with the following two questions about astronomy. Thank you drag-and-drop environment to put the...
Help me with the following two questions about astronomy.
Thank you
drag-and-drop environment to put the correct words in the right places. (Please Note: Not all draggable items will be u Draggable Items magnitude faintitude apparent brightness brighter Because distance causes light to spread out and get dimmer, astronomers need to distinguish between the total energy output of a star, called its and how bright a star looks from Earth, called its For historical reasons, astronomers still use a system...
A) In recent years, a number of nearby stars have been found to possess planets. Suppose,...
A) In recent years, a number of nearby stars have been found to possess planets. Suppose, the orbital radius of such a planet is found to be 4.7 1011 m, with a period of 1300 days. Find the mass of the star. kg B) When a spacecraft travels from the Earth to the Moon, both the Earth and the Moon exert a gravitational force on the spacecraft. Eventually, the spacecraft reaches a point where the Moon's gravitational attraction overcomes the...
Over 500 planets have so far been detected beyond our solar system. This is accomplished by looki...
Over 500 planets have so far been detected beyond our solar system. This is accomplished by looking for the effect the planet has on the star. The star is not truly stationary; instead, it and its planets orbit around the center of mass of the system. Astronomers can measure this wobble in the position of a star. a.) For a star with the mass and size of our sun and having a planet with two times the mass of Jupiter,...
A battery with V = 9.0 volts is connected to two identical but unknown capacitors as...
A battery with V = 9.0 volts is connected to two identical but unknown capacitors as in the figure. The charge drawn up from the battery to completely charge up the initially uncharged capacitors was 99 micro C. What is the capacitance of each capacitor C? Question options: 4.4 micro F 11 micro F 5.5 micro F 22 micro F 2.2 micro F Question Protons move clockwise around a circular path of radius 27 cm in a magnetic field of...
Hi! So this table on the picture has star information needed.
the queastion is:
“A star whose apparent magnitude and absolute magnitude are
identical is licated at 10 persecs away from us (by definition).
Star C is at 10 pc. Of the other four stars, rank them from
closest, closer, farther, farthest. (HINT: figure out if a star
would be brighter or dimmer IF it were located at 10
persecs.)”
So on second picture were my answers, and i got...
4. Two stars are imaged by the same telescope/CCD system. If both stars are known to be at the same distance from the Earth and the measured flux arriving at Earth from star B is 10x that from star A... A)What is the magnitude difference between these two stars? (ie., we want Am- m-m) B)Letting LJ be the luminosity of star A and Lg be that of star B, whet is the ratio of their luminosities: .A
The characteristic absorption spectra of two stars are shown.
Indicated in each is a set of absorption lines due to interstellar
material between us and the stars. Using this information and the
spectral drawings shown below complete parts a - e of this
question.
a. The interstellar absorption lines appear more intense in the
spectrum of star A than star B. What does this mean in terms of the
number of absorbing atoms between the earth observer's line of
sight...
Help me with the following two questions about astronomy.
Thank you
drag-and-drop environment to put the correct words in the right places. (Please Note: Not all draggable items will be u Draggable Items magnitude faintitude apparent brightness brighter Because distance causes light to spread out and get dimmer, astronomers need to distinguish between the total energy output of a star, called its and how bright a star looks from Earth, called its For historical reasons, astronomers still use a system...
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