The star Rasalhague has a parallax angle of 0.0.0698''. What is its distance in parsecs?
Parallax is inversly porpotional to distance .
Closer stars have larger parallax while distant star have smaller parallax.
Mathematically this realtion can be expressed as
The star Rasalhague has a parallax angle of 0.0.0698''. What is its distance in parsecs?
What is the parallax in arcseconds of a star that is 4.7 parsecs away? Express your answer to 2 significant figures. parallax: arcseconds The star Spica has an apparent magnitude of 1.04 and is located 80.0 parsecs away. What is Spica's absolute magnitude? Express your answer to 3 significant figures. absolute magnitude:
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 Hipparcos satellite, which has given us most of our best modern measurements of parallax, has an uncertainty in its measurements of the parallax angle of 0.001". For a star with a parallax of 0.004" what is the distance to the star? What is the uncertainty in that distance? What is the percentage uncertainty? At what distance is the distance uncertainty 10%
The Hipparcos satellite, which has given us most of our best modern measurements of parallax, has an uncertainty...
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...
(a) The observed parallax of Sirius, the brightest star in the sky, is 0.375 arcseconds. How far away is it in parsecs? In light years? (b) The Hipparcos spacecraft could measure parallaxes as small as 0.001 a How distant is the furthest star for which we can measure parallax? How does this distance compare to the size of the galaxy!
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 Sirius has an apparent magnitude ?V = −1.46 and a parallax ? = 0.37921”.(a) Calculate its distance and absolute magnitude. (b) What would Sirius’ parallax be if it were measured from an observatory on Neptune’s moon Triton as Neptune orbited theSun?
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?
What is the distance to a star if the parallax is 0.022 arc-seconds? Give your answer to 1 decimal place Note: Answer was 45.5, but I just don't get it
The parallax of the star Sirius, as viewed from Earth, is about 0.379 arc seconds. How many parsecs away is it? (Hint: D=1/p)