Questions tagged [velocity]
Questions regarding the movement of an object at a given speed and direction, often related to the concepts of orbital velocity and escape velocity.
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How to find the shape of an orbit
What is the minimum information I need to be able to draw the shape of an orbit of a body that orbits the sun? With this information how can I figure out the shape of its orbit?
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How to convert Proper Motion in RA & Dec to Galactic Coordinates
I'm trying to parse stellar data in the GAIA 2 release to galactic coordinates and am struggling with the velocity component. I've tried following online documentation and papers, but end up with ...
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Do planets have effect on velocity of Earth?
There is method for finding extrasolar planets called Transit-timing variation. If I understood correctly, exoplanets accelerate or decelerate each other (according on their position), so we can ...
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What does "unremarkable transverse peculiar velocity" mean exactly, and how is it calculated here?
The abstract of A magnetar parallax (also in MNRAS) contains the following:
Combining our new observations with two archival observations from 2006, we have refined the proper motion and reference ...
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Binary Star Initial Speed
I am writing a 2D simulation for binary stars orbiting each other. Currently, the initial position of the stars are on opposite sides of the screen with the left star having a velocity up the page and ...
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can we calculate the velocity of galaxies at the edge of the observable universe?
I read this post
Does the edge of the Universe travel faster than the speed of light?
but there was no calculation, so I tried it thusly:
The observable universe is 28.5 Gpc (gigaparsecs)
= 28500 ...
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Calculating object velocity at perihelion
I would like to calculate the velocity of an asteroid orbiting around a star (Sun) at the perihelion of its orbit. I know the excentricity of the ellipse and its semimajor axis.
I have found that the ...
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Find x,y,z velocity component of a star? [closed]
I am trying to find the initial x,y,z velocity components of the Epsilon Lyrae stars. How might I go about doing this? The radial velocities are available on Wikipedia, but I am not sure how to use ...
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How to identify component of velocity of a star from its red shift? [duplicate]
When a telescope observes a distant star, all it sees is the light being emitted by the star. Observing the wavelength of this light, we determine the velocity of the star. If the wavelength is red-...
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Where a database of different z values of redshift can be found?
I was working on reshift details for various galaxies but do not know any database to find the z values given to redshift galaxies. Can anyone help?
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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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Is blue light not traveling faster then red light in space?
I just can't understand why light and other massless particles are not traveling at different speeds?
Gravity effects anything with a mass but light has no mass but a black hole, and weak lensing ...
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How to determine the mass of a galaxy?
I am having a slight disagreement with my professor.
We can measure the mass of a distant star cluster from:
A.Its color
B.Its radius
C.Its metallicity
D.Smearing of lines in its total spectrum
My ...
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Can "rogue" supermassive black holes be made this way?
Could two galaxies (one big and one small)intersect at a velocity to allow the smaller black hole to escape but not the galaxy around it?
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What is the fastest a galaxy or other body has been measured to (or can) travel?
Our solar system travels at an average speed of 515,000 mph and our galaxy at 1.3 million mph through space. What is the fastest moving body in space recorded and the fastest can a black hole or ...
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