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

#: index.docbook:8
#, fuzzy, no-c-format
msgid "Julian Day"
msgstr "Julian Day"

#: index.docbook:9
#, no-c-format
msgid ""
"The Julian Calendar is a way of reckoning the current date by a simple count "
"of the number of days that have passed since some remote, arbitrary date. "
"This number of days is called the <firstterm>Julian Day</firstterm>, "
"abbreviated as <abbrev>JD</abbrev>. The starting point, "
"<abbrev>JD=0</abbrev>, is January 1, 4713 BC (or -4712 January 1, since "
"there was no year '0'). Julian Days are very useful because they make it "
"easy to determine the number of days between two events by simply "
"subtracting their Julian Day numbers. Such a calculation is difficult for "
"the standard (Gregorian) calendar, because days are grouped into months, "
"which can contain a variable number of days, and there is the added "
"complication of <link linkend=\"ai-leapyear\">Leap Years</link>."
msgstr ""

#: index.docbook:21
#, no-c-format
msgid ""
"Converting from the standard (Gregorian) calendar to Julian Days and vice "
"versa is best left to a special program written to do this, and there are "
"many to be found on the web (and &kstars; does this too, of course!). "
"However, for those interested, here is a simple example of a Gregorian to "
"Julian day converter:"
msgstr ""

#: index.docbook:26
#, no-c-format
msgid ""
"<abbrev>JD</abbrev> = <abbrev>D</abbrev> - 32075 + 1461*( <abbrev>Y</abbrev>"
" + 4800 * ( <abbrev>M</abbrev> - 14 ) / 12 ) / 4 + 367*( <abbrev>M</abbrev> "
"- 2 - ( <abbrev>M</abbrev> - 14 ) / 12 * 12 ) / 12 - 3*( ( "
"<abbrev>Y</abbrev> + 4900 + ( <abbrev>M</abbrev> - 14 ) / 12 ) / 100 ) / 4"
msgstr ""

#: index.docbook:31
#, no-c-format
msgid ""
"where <abbrev>D</abbrev> is the day (1-31), <abbrev>M</abbrev> is the Month "
"(1-12), and <abbrev>Y</abbrev> is the year (1801-2099). Note that this "
"formula only works for dates between 1801 and 2099. More remote dates "
"require a more complicated transformation."
msgstr ""

#: index.docbook:36
#, no-c-format
msgid ""
"An example Julian Day is: <abbrev>JD</abbrev> 2440588, which corresponds to "
"1 Jan, 1970."
msgstr ""

#: index.docbook:39
#, no-c-format
msgid ""
"Julian Days can also be used to tell time; the time of day is expressed as a "
"fraction of a full day, with 12:00 noon (not midnight) as the zero point. "
"So, 3:00 pm on 1 Jan 1970 is <abbrev>JD</abbrev> 2440588.125 (since 3:00 pm "
"is 3 hours since noon, and 3/24 = 0.125 day). Note that the Julian Day is "
"always determined from <link linkend=\"ai-utime\">Universal Time</link>"
", not Local Time."
msgstr ""

#: index.docbook:45
#, no-c-format
msgid ""
"Astronomers use certain Julian Day values as important reference points, "
"called <firstterm>Epochs</firstterm>"
". One widely-used epoch is called J2000; it is the Julian Day for 1 Jan, "
"2000 at 12:00 noon = <abbrev>JD</abbrev> 2451545.0."
msgstr ""

#: index.docbook:49
#, no-c-format
msgid ""
"Much more information on Julian Days is availabel on the internet. A good "
"starting point is the <ulink "
"url=\"http://aa.usno.navy.mil/faq/docs/JD_Formula.html\">U.S. Naval "
"Observatory</ulink>. If that site is not available when you read this, try "
"searching for <quote>Julian Day</quote> with your favorite search engine."
msgstr ""
