# translation of kstars_precession.po to 
# translation of kstars_precession.po to
# translation of kstars_precession.po to
# Copyright (C) 2002 Free Software Foundation, Inc.
# Lwandle Mgidlana <lwandle@translate.org.za>, 2002
#
msgid ""
msgstr ""
"Project-Id-Version: kstars_precession\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>Jason</firstname> <surname>Harris</surname>"
msgstr ""

#: index.docbook:8
#, fuzzy, no-c-format
msgid "Precession"
msgstr "Ugqolo"

#: index.docbook:9
#, no-c-format
msgid ""
"<firstterm>Precession</firstterm> is the gradual change in the direction of "
"the Earth's spin axis. The spin axis traces a cone, completing a full "
"circuit in 26,000 years. If you've ever spun a top or a dreidel, the "
"<quote>wobbling</quote> rotation of the top as it spins is precession."
msgstr ""

#: index.docbook:14
#, no-c-format
msgid ""
"Because the direction of the Earth's spin axis changes, so does the location "
"of the <link linkend=\"ai-cpoles\">Celestial Poles</link>."
msgstr ""

#: index.docbook:17
#, no-c-format
msgid ""
"The reason for the Earth's precession is complicated. The Earth is not a "
"perfect sphere, it is a bit flattened, meaning the <link "
"linkend=\"ai-greatcircle\">Great Circle</link>"
" of the equator is longer than a <quote>meridonal</quote> great circle that "
"passes through the poles. Also, the Moon and Sun lie outside the Earth's "
"Equatorial plane. As a result, the gravitational pull of the Moon and Sun on "
"the oblate Earth induces a slight <emphasis>torque</emphasis>"
" in addition to a linear force. This torque on the spinning body of the "
"Earth leads to the precessional motion."
msgstr ""

#: index.docbook:28
#, no-c-format
msgid "Exercise:"
msgstr ""

#: index.docbook:28
#, no-c-format
msgid ""
"Precession is easiest to see by observing the <link "
"linkend=\"ai-cpoles\">Celestial Pole</link>. To find the pole, first switch "
"to Equatorial Coordinates in the <guilabel>View Options</guilabel> window, "
"and then hold down the <keycap>Up arrow</keycap>"
" key until the display stops scrolling. The declination displayed in the "
"center of the <guilabel>Info Panel</guilabel>"
" should be +90 degrees, and the bright star Polaris should be nearly at the "
"center of the screen. Try slewing with the left and right arrow keys. Notice "
"that the sky appears to rotate around the Pole."
msgstr ""

#: index.docbook:28
#, no-c-format
msgid ""
"We will now demonstrate Precession by changing the Date to a very remote "
"year, and observing that the location of the Celestial Pole is no longer "
"near Polaris. Open the <guilabel>Set Time</guilabel> window (<keycombo "
"action=\"simul\">&Ctrl;<keycap>S</keycap></keycombo>), and set the date to "
"the year 8000 (currently, &kstars; cannot handle dates much more remote than "
"this, but this date is sufficient for our purposes). Notice that the sky "
"display is now centered at a point between the constellations Cygnus and "
"Cepheus. Veryify that this is actually the pole by slewing left and right: "
"the sky rotates about this point; in the year 8000, the North celestial pole "
"will no longer be near Polaris!"
msgstr ""
