Home (Transverse velocity)

 Astronomy 

  » »
 
   

Transverse velocity

Astronomy  Transparency  Trapezium

Transverse velocity
The component of a object's velocity that is perpendicular to our line of sight.
The breakdown of a star's velocity v into the radial vr and transverse vT components.


Transverse Velocity
The velocity of a star perpendicular to the line of sight.
Triaxial Ellipsoid ...

Transverse Velocity - The part of the orbital speed of a body perpendicular to the Sun between the body and the Sun
Triple A Process - A pair of nuclear reactions through which three helium nuclei (alpha particles) are transformed into a carbon nucleus ...

A star's transverse velocity is easily calculated once its proper motion and its distance are known. At the distance of Barnard's Star (1.8 pc), an angle of 10.3" corresponds to a physical displacement of 0.00009 pc, or about 2.8 billion km.

induced either by bombarding heavy elements with high-energy nuclei of light elements or by the capture of slow neutrons, followed by beta decay. In nuclear explosions, transuranic elements may be produced by numerous successive captures of neutrons by uranium nuclei. [DC99]
Transverse Velocity ...

Also known as transverse velocity. telescope temperature (Celsius) temperature (color) temperature (effective) temperature (Fahrenheit) temperature (Kelvin) temperature (kinetic) terrestrial planet Mercury, Venus, Earth, or Mars.

tangential velocity (transverse velocity) Velocity of a star measured across the line of sight of the observer.

For Barnard's star this works out to 90 km/s; including the radial velocity of 111 km/s (which is at right angles to the transverse velocity) gives a true motion of 142 km/s.

A star's proper motion depends on its actual transverse velocity and inversely with its distance from us.

But it turns out that when one corrects for the motion of the Sun within the Milky Way, one finds that the transverse velocity of the center of mass of M31 relative to the center of mass of the Milky Way is very small: only about 17 km/sec.

Proper motion: Apparent angular motion of a star on the celestial sphere, usually measured in seconds of arc per year. A star's transverse velocity, i.e.

The apparent transverse velocity of the moving component is the actual transverse distance covered in time $t$ divided by the apparent time interval $(t_2 - t_1)$: ...

The transverse velocity, VT, (sideways motion) of the cluster can be found using VT/VR = tan(theta). The distance of the cluster is then D[in cm] = VT[in cm/sec]/[d(theta)/dt] D[in pc] = (VR/4.74 km/sec)*tan(theta)/{d(theta)/dt[in "/yr]} The odd constant 4.74 km/sec is one au/year.

Our analysis also determined that one gravitational contribution to the red shift causes errors in determination of the distance of massive quasars (making them appear further away) thus giving a very large value for calculated emitted energy. This also results is a calculated transverse velocity ...

The governing equations reflect the relativistic Doppler dilation and boost effects. If we consider the projected separation between a stationary core and a blob moving away from it at a rate c b at an angle q to our line of sight, the apparent transverse velocity will be ...

See also: See also: Astro, Star, Sky, Proper motion, Earth

◄ Transparency   Trapezium ►
 
RSS Mobile