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Subject: [M]: RE: Magenetic Declination web site.
From: Email address hidden
Reply To: mapug@shore.net
Date: Tue Jul 03 11:00:55 2001
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Can anyone explain how to north align my scope using this info. I have all
the numbers but dont really know how to
put them into practise.
I have a compass with a rotating ring marked in degrees. I think I have to
twist this ring until it is offset by the magnetic
declination and then point the compass arrow to the now offset north, the
problem is I dont know whether to turn the ring
eastward or westward.
my declination (according to the site below) is 15d east (the meade manual
says 16d east)
I know this is probably second nature to many of you but I have had to mess
with maps or compasses before
and couldn't find much on google to help either.
thanks
-----Original Message-----
Sent: Monday, July 02, 2001 5:23 PM
Subject: [M]: Magenetic Declination web site.
For those interested (and particularly those who do not live in North
America and for whom the magnetic declination chart in the LX200 manual is
useless) here is a web site which provides magnetic declination values from
any latitude and longitude. There is also some interesting information on
the subsequent calculation of true bearings and other variables.
http://www.ngdc.noaa.gov/cgi-bin/seg/gmag/fldsnth1.pl
<http://www.ngdc.noaa.gov/cgi-bin/seg/gmag/fldsnth1.pl>
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<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN =
class=3D554465517-03072001>Can=20
anyone explain how to north align my scope using this info. I have all =
the=20
numbers but dont really know how to</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN =
class=3D554465517-03072001>put=20
them into practise.</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D554465517-03072001></SPAN></FONT> </DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN =
class=3D554465517-03072001>I have=20
a compass with a rotating ring marked in degrees. I think I have to =
twist this=20
ring until it is offset by the magnetic</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D554465517-03072001>declination and then point the compass arrow =
to the now=20
offset north, the problem is I dont know whether to turn the=20
ring</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D554465517-03072001>eastward or westward.</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D554465517-03072001></SPAN></FONT> </DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN =
class=3D554465517-03072001>my=20
declination (according to the site below) is 15d east (the meade manual =
says 16d=20
east)</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D554465517-03072001></SPAN></FONT> </DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN =
class=3D554465517-03072001>I know=20
this is probably second nature to many of you but I have had to =
mess with=20
maps or compasses before</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN =
class=3D554465517-03072001>and=20
couldn't find much on google to help either.</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D554465517-03072001></SPAN></FONT> </DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D554465517-03072001>thanks</SPAN></FONT></DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20
class=3D554465517-03072001></SPAN></FONT> </DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; =
MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">
<DIV align=3Dleft class=3DOutlookMessageHeader dir=3Dltr><FONT =
face=3DTahoma=20
size=3D2>-----Original Message-----<BR><B>From:</B> Paul Luckas=20
5:23=20
Declination=20
web site.<BR><BR></DIV></FONT>
<DIV><FONT face=3DArial size=3D2>For those interested (and =
particularly those who=20
do not live in North America and for whom the magnetic declination =
chart in=20
the LX200 manual is useless) here is a web site which provides =
magnetic=20
declination values from any latitude and longitude. There is also =
some=20
interesting information on the subsequent calculation of true =
bearings and=20
other variables.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><A=20
=
href=3D"http://www.ngdc.noaa.gov/cgi-bin/seg/gmag/fldsnth1.pl">http://ww=
w.ngdc.noaa.gov/cgi-bin/seg/gmag/fldsnth1.pl</A></FONT></DIV></BLOCKQUOT=
E></BODY></HTML>
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