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List: kde-commits
Subject: kdeedu/kstars/kstars/tools
From: Pablo de Vicente <p.devicente () wanadoo ! es>
Date: 2005-04-10 16:43:17
Message-ID: 20050410164317.7BDB4495 () office ! kde ! org
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CVS commit by pvicente:
Polished the text, but yet unfinished. Need more time for that.
M +4 -5 modcalcvlsrdlg.ui 1.3
--- kdeedu/kstars/kstars/tools/modcalcvlsrdlg.ui #1.2:1.3
@@ -981,10 +981,9 @@
</property>
<property name="text">
- <string><p> The Local Standard of Rest (LSR) is the centroid of motion \
of the local group of stars in the neighborhood of the Sun. There are several coordinates for the solar \
apex. Here we use the radioastronomical position:</p> + \
<string><p> The Local Standard of Rest (LSR) is the location in which the mean value of the \
velocity of a selection of the stars in solar neighboorhood is cero. The local solar motion, that is, the \
velocity of the sun referred to the Local Standard of Rest is not null: the sun moves with a velocity of \
20 km/s towards a point called, solar apex, whose coordinates are:</p> <li>Ra= 18:03:50.2 \
(J2000)</li> <li>Dec = 30:0:16.8 (J2000)</li>
-<p>The Sun moves away from this location with a velocity of 20.0 km/s.</p>
-<p>Astronomical sources move relative to the Sun and their velocity can be decomposed in radial \
velocity, and velocity on the plane of the sky; also know as proper motion. The radial velocity is \
usually obtained by analyzing their spectral emission and the frequency shift of the lines due to Doppler \
effect. Observational astronomers usually refer the radial to the LSR.</p>
-<p>This calculator module allows you to obtain the radial velocity of the source referred to the \
center of the sun (heliocentric velocity), referred to the center of the Earth (geocentric velocity) and \
to the observer site (topocentric velocity) from the LSR radial velocity</p> +<p>Astronomical \
sources move relative to the Sun and their velocity can be decomposed in radial velocity, and velocity on \
the plane of the sky, also know as proper motion in right ascention and declination. The radial velocity \
is usually obtained by analyzing their spectral emission and the frequency shift of the lines due to \
Doppler effect. Observational astronomers usually refer source's radial velocity to the LSR.</p> \
+<p>This calculator module allows to obtain the radial velocity of the source referred to the \
center of the sun (what we call heliocentric velocity), referred to the center of the Earth (geocentric \
velocity) and to the observer site (topocentric velocity) from the LSR radial velocity</p> \
<li>The heliocentric velocity (V<sub>hel</sub>) is computed by obtaining the scalar \
product of the radial velocity of the source referred to the LSR (V<sub>lsr</sub>) with the \
velocity of the Sun referred to the LSR (V<sub>sun</sub>: <img src="vlsr1.png">
@@ -993,5 +992,5 @@
<img src="vlsr2.png">
</li>
-<li>The topocentric velocity is obtained from the geocentric velocity, the position on the Earth, \
and the date and time at which we want to determine the radial velocity of the \
source.</li></string> +<li>The topocentric velocity is obtained from the geocentric \
velocity, the position on the Earth, and the date and time at which we desire to know the radial velocity \
of the source.</li></string> </property>
</widget>
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