Questions tagged [parsec]
Questions related to the unit of measurement, parsec, which is approximately 3.26 times the distance of a light year.
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Converting parsecs to light years in the dumbest way possible
I have to convert 132 parsecs to light years and I'm struggling to get the expected result. Here is my method:
$132 \text{ pc} = 132'' = 2,2' = 0,03(6)°$
I have an equation for stellar parallax which ...
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Do parsecs scale as an inverse proportion with parallax angle?
high school student here.
In astronomy my teacher says that if the parsec angle ($\alpha$) of a star is 1/50 arcsecond, then that star is 50 parsecs away.
I'm not really convinced - calculation of ...
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How can we calculate velocity of an object given the distance from an object in parsecs?
If you had the distance from a celestial object, in parsecs, how would you calculate the velocity of the said object?
Edit: I'm sorry I don't have more context, the specific questions is: "A galaxy ...
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How would I search within an angular distance of an object corresponding to a distance in parsecs?
I'm interested in the learning about the local densities around galaxies. I've found myself a bit confused on how to relate angular distances (arcseconds) with physical distances (parsecs) when ...
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Conversion of UBVRIJHK magnitudes to luminosity?
So, I know that the standard for conversion from bolometric magnitude to luminosity established in 2015 equates to:
L = 10^(-0.4 * magnitude) * 3.0128e28
Easy ...
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How far in arc seconds is a planet from its star? The star is 12 parsecs away from earth. The planet is 1 AU from its star
I've been reading the book Welcome to The Universe by Niel De Grasse Tyson. In the tenth chapter he has mentioned "Forty light-years is 12 parsecs. A planet at 1 AU from its star, 40 light-years away, ...
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How to calculate a Galactocentric distance of another galaxy
So I have two parameters, I have the distance to a galaxy of 879 kpc and the sky distance in degrees (0.131501). How would I then use these two bits of information to calculate the Galactocentric ...
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A quick (elementary) check on arsecond conversion to sky distance in parsecs
I just wanted to double check I had something correct. If an object, say a nebula, is measured to roughly have a diameter or extent of, say, 250 arcseconds, would its diameter in parsec simply ...
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What is a parsec and how is it measured?
Astronomical units of measurement are mostly pretty straight-forward:
Astronomical Units refer to the mean Earth-Sun distance (~150 million km or 93 million miles)
Light years are the distance light ...
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