# translation of kstars_parallax.po to 
# translation of kstars_parallax.po to
# translation of kstars_parallax.po to
# Copyright (C) 2002 Free Software Foundation, Inc.
# Lwandle Mgidlana <lwandle@translate.org.za>, 2002
#
msgid ""
msgstr ""
"Project-Id-Version: kstars_parallax\n"
"POT-Creation-Date: 2001-02-09 01:25+0100\n"
"PO-Revision-Date: 2002-09-26 12:32+0200\n"
"Last-Translator: Lwandle Mgidlana <lwandle@translate.org.za>\n"
"Language-Team:  <xh@li.org>\n"
"MIME-Version: 1.0\n"
"Content-Type: application/x-xml2pot; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"X-Generator: KBabel 1.0beta2\n"

#: index.docbook:3
#, no-c-format
msgid "<firstname>James</firstname> <surname>Lindenschmidt</surname>"
msgstr ""

#: index.docbook:7
#, no-c-format
msgid "Parallax"
msgstr ""

#: index.docbook:8
#, no-c-format
msgid ""
"<firstterm>Parallax</firstterm> is the apparent change of an observed "
"object's position caused by a shift in the observer's position. As an "
"example, hold your hand in front of you at arm's length, and observe an "
"object on the other side of the room behind your hand. Now tilt your head to "
"your right shoulder, and your hand will appear on the left side of the "
"distant object. Tilt your head to your left shoulder, and your hand will "
"appear to shift to the right side of the distant object."
msgstr ""

#: index.docbook:18
#, no-c-format
msgid ""
"Because the Earth is in orbit around the Sun, we observe the sky from a "
"constantly moving position in space. Therefore, we should expect to see an "
"<firstterm>annual parallax</firstterm> effect, in which the positions of "
"nearby objects appear to <quote>wobble</quote>"
" back and forth in response to our motion around the Sun. This does in fact "
"happen, but the distances to even the nearest stars are so great that you "
"need to make careful observations with a telescope to detect "
"it<footnote><para>"
"The ancient Greek astronomers knew about parallax; because they could not "
"observe an annual parallax in the positions of stars, they concluded that "
"the Earth could not be in motion around the Sun. What they didn't realize "
"was that the stars are millions of times further away than the Sun, so the "
"parallax effect is impossible to see with the unaided eye.</para></footnote>."
msgstr ""

#: index.docbook:33
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msgid ""
"Modern telescopes allow astronomers to use the annual parallax to measure "
"the distance to nearby stars, using triangulation. The astronomer carefully "
"measures the position of the star on two dates, spaced six months apart. The "
"nearer the star is to the Sun, the larger the apparent shift in its position "
"will be between the two dates."
msgstr ""

#: index.docbook:41
#, no-c-format
msgid ""
"Over the six-month period, the Earth has moved through half its orbit around "
"the Sun; in this time its position has changed by 2 <firstterm>Astronomical "
"Units</firstterm> (abbreviated AU; 1 AU is the distance from the Earth to "
"the Sun, or about 150 million kilometers). This sounds like a really long "
"distance, but even the nearest star to the Sun (alpha Centauri) is about 40 "
"<emphasis>trillion</emphasis> kilometers away! Therefore, the annual "
"parallax is very small, typically smaller than one "
"<firstterm>arcsecond</firstterm>, which is only 1/3600 of one degree. A "
"convenient distance unit for nearby stars is the "
"<firstterm>parsec</firstterm>, which is short for \"parallax arcsecond\". "
"One parsec is the distance a star would have if its observed parallax angle "
"was one arcsecond. It is equal to 3.26 light-years, or 31 trillion "
"kilometers<footnote><para>Astronomers like this unit so much that they now "
"use <quote>kiloparsecs</quote> to measure galaxy-scale distances, and "
"<quote>Megaparsecs</quote> to measure intergalactic distances, even though "
"these distances are much too large to have an actual, observable parallax. "
"Other methods are required to determine these distances</para></footnote>."
msgstr ""
