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What is the parallax in arcseconds of a star that is 4.7 parsecs away? Express your...
The star Polaris has an apparent magnitude of 1.98 and is located 133 parsecs away. What...
The star Polaris has an apparent magnitude of 1.98 and is located 133 parsecs away. What is Polaris's absolute magnitude? Express your answer to 3 significant figures. absolute magnitude:
What is the parallax of a star that is 12.00 light-years away in arcseconds?
What is the parallax of a star that is 12.00 light-years away in arcseconds?
1. A star has a parallax of 0.324 arcseconds and apparent magnitude in V-band m= +1.55....
1. A star has a parallax of 0.324 arcseconds and apparent magnitude in V-band m= +1.55. Later observations reveal that the “star” is actually a close binary, with members star 1 and star 2. Star 1 is found to have mı = +1.83. (a) Find the apparent magnitude of star 2, m2. [2 marks] (b) What is the ratio of the V-band flux received from star 1 to that received from star 2? (c) Find the distance to the system...
A star has apparent magnitude 10.0 and absolute magnitude 4.5. How far away is it? Express...
A star has apparent magnitude 10.0 and absolute magnitude 4.5. How far away is it? Express your answer using two significant figures.
The parallax of Reiltas has been measured to be 0.285 arcseconds. What is the distance to...
The parallax of Reiltas has been measured to be 0.285 arcseconds. What is the distance to Reiltas in parsecs? in light-years? Suppose Reiltas' parallax was re-measured by the new Satellite for Parallax Accuracy Measurements (SPAM) to be 0.275 arcseconds. Is Reiltas closer or farther than previously determined? Explain your reasoning.
The star Rasalhague has a parallax angle of 0.0.0698''. What is its distance in parsecs?
The star Rasalhague has a parallax angle of 0.0.0698''. What is its distance in parsecs?
1) If a star has an apparent magnitude of -0.4 and a parallax of 0.3”, what...
1) If a star has an apparent magnitude of -0.4 and a parallax of 0.3”, what is a) the distance modulus and b) the absolute magnitude?
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...
9) How distant is a star whose modulus is -7.5? 10) If its apparent magnitude (m)...
9) How distant is a star whose modulus is -7.5? 10) If its apparent magnitude (m) = +13.5 and absolute magnitude (M) = +10, what is the distance to a star? PROBLEMS TO COMPLETE FOR PARALLAX 11) A star has a parallax of .025 seconds of arc—what is its distance in parsecs? The nearest star has a parallax of 76 arc seconds—what is its distance in light years? 12) If star were 2.40 pc from Earth, what would its distance...
You measure a star to have a parallax angle of 0.14 arc-seconds. What fraction of a...
You measure a star to have a parallax angle of 0.14 arc-seconds. What fraction of a degree is this? Answer: /Problem 2 - Parallax to human eye 2. [3pt] By how many times would you have to magnify this effect for it to be visible to the human eye? (The limit of human vision is about 1 arc-minute) Answer: 3. [3pt] What is the distance to this star in parsecs? Answer: 4. [2pt] What is the distance to this star...
The star Polaris has an apparent magnitude of 1.98 and is located 133 parsecs away. What is Polaris's absolute magnitude? Express your answer to 3 significant figures. absolute magnitude:
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...
9) How distant is a star whose modulus is -7.5? 10) If its apparent magnitude (m) = +13.5 and absolute magnitude (M) = +10, what is the distance to a star? PROBLEMS TO COMPLETE FOR PARALLAX 11) A star has a parallax of .025 seconds of arc—what is its distance in parsecs? The nearest star has a parallax of 76 arc seconds—what is its distance in light years? 12) If star were 2.40 pc from Earth, what would its distance...
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