| |
[index]
[month]
[prev]
[next]
Subject: [M]: LONG: Howdoya Set Time/Date Circles to Polar Align GP Mount?
From: Holguin
Reply To: mapug@shore.net
Date: Mon Nov 02 16:40:57 1998
|
While you're here, how about checking out the
Astronomy Book
List ? |
This is a multi-part message in MIME format.
------=_NextPart_000_0019_01BE067F.90FF0D40
Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
I know this isn't a question specific to Meade scopes, but figured I'd =
ask since I used to own a 10 and 8 LX-200. Hope that counts. Here =
goes...
I have my first GP mount (Vixen GP-D) and am trying to figure out how =
the heck to set the time/date scales on the mount to align polaris just =
right inside the polar axis scope. Here's what the manual says...
6) Look at a map or atlas that shows the longitude of your observing =
site (ok fine, no problem here).
Once you know your longitude, find the difference between that and the =
standard time meridian for your zone (what the heck does this mean? I =
live near Phx, AZ). Set the difference on the time meridian offset scale =
(ok, I can do this if I know how to determine the difference). If your =
observing site is located in the east of the standard time meridian, set =
the E side graduation to the time meridian indicator. If in the west, =
set the W side graduation to the time meridian indicator (once again, ok =
I can do this once I know how to get this figure in the first place).
After step 6 is performed the manual goes on to step 7...
7) Set "0 hour" on the R. A. and hour graduation ring to the R. A. =
indicator after loosening the graduation-ring setscrew. Re-tighten the =
graduation-ring setscrew (this step is easy enough - no problem here).
And then, finally where I am having the most problem...step 8!
8) Unfasten the R. A. clamp and turn the telescope around the polar axis =
to set the observing date on the date graduation ring to the observing =
time on the R. A. and hour graduation ring. This is the step I'm not =
following. The date graduation ring is numbered 1-12. The R. A. and hour =
graduation ring is numbered 0-23. What do these scales represent? Is the =
1-12 the month and 0-23 the hour? Do I just match the month to the time?
Help is much appreciated.
Regards,
Wade Holguin
------=_NextPart_000_0019_01BE067F.90FF0D40
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">
<HTML>
<HEAD>
<META content=3Dtext/html;charset=3Diso-8859-1 =
http-equiv=3DContent-Type>
<META content=3D'"MSHTML 4.72.3510.1400"' name=3DGENERATOR>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT color=3D#000000 face=3D"Eras Medium ITC">I know this isn't a =
question=20
specific to Meade scopes, but figured I'd ask since I used to own a 10 =
and 8=20
LX-200. Hope that counts. Here goes...</FONT></DIV>
<DIV><FONT color=3D#000000 face=3D"Eras Medium ITC"></FONT> </DIV>
<DIV><FONT color=3D#000000 face=3D"Eras Medium ITC">I have my first GP =
mount (Vixen=20
GP-D) and am trying to figure out how the heck to set the time/date =
scales on=20
the mount to align polaris just right inside the polar axis scope. =
Here's what=20
the manual says...</FONT></DIV>
<DIV><FONT color=3D#000000 face=3D"Eras Medium ITC"></FONT> </DIV>
<DIV><FONT color=3D#000000 face=3D"Eras Medium ITC">6) Look at a map or =
atlas that=20
shows the longitude of your observing site (<EM>ok fine, no problem=20
here</EM>).</FONT></DIV>
<DIV><FONT color=3D#000000 face=3D"Eras Medium ITC">Once you know your =
longitude,=20
find the difference between that and the standard time meridian for your =
zone=20
(<EM>what the heck does this mean? I live near Phx, AZ</EM>). Set the =
difference=20
on the time meridian offset scale (<EM>ok, I can do this if I know how =
to=20
determine the difference</EM>). If your observing site is located in the =
east of=20
the standard time meridian, set the E side graduation to the time =
meridian=20
indicator. If in the west, set the W side graduation to the time =
meridian=20
indicator (<EM>once again, ok I can do this once I know how to get this =
figure=20
in the first place</EM>).</FONT></DIV>
<DIV><FONT color=3D#000000 face=3D"Eras Medium ITC"></FONT> </DIV>
<DIV><FONT color=3D#000000 face=3D"Eras Medium ITC">After step 6 is =
performed the=20
manual goes on to step 7...</FONT></DIV>
<DIV><FONT color=3D#000000 face=3D"Eras Medium ITC"></FONT> </DIV>
<DIV><FONT color=3D#000000 face=3D"Eras Medium ITC">7) Set "0 =
hour" on the=20
R. A. and hour graduation ring to the R. A. indicator after loosening =
the=20
graduation-ring setscrew. Re-tighten the graduation-ring setscrew =
(<EM>this step=20
is easy enough - no problem here</EM>).</FONT></DIV>
<DIV><FONT color=3D#000000 face=3D"Eras Medium ITC"></FONT> </DIV>
<DIV><FONT color=3D#000000 face=3D"Eras Medium ITC">And then, finally =
where I am=20
having the most problem...step 8!</FONT></DIV>
<DIV><FONT color=3D#000000 face=3D"Eras Medium ITC"></FONT> </DIV>
<DIV><FONT color=3D#000000 face=3D"Eras Medium ITC">8) Unfasten the R. =
A. clamp and=20
turn the telescope around the polar axis to set the observing date on =
the date=20
graduation ring to the observing time on the R. A. and hour graduation =
ring.=20
This is the step I'm not following. The date graduation ring is numbered =
1-12.=20
The R. A. and hour graduation ring is numbered 0-23. What do these =
scales=20
represent? Is the 1-12 the month and 0-23 the hour? Do I just match the =
month to=20
the time?</FONT></DIV>
<DIV><FONT color=3D#000000 face=3D"Eras Medium ITC"></FONT> </DIV>
<DIV><FONT color=3D#000000 face=3D"Eras Medium ITC">Help is much=20
appreciated.</FONT></DIV>
<DIV><FONT color=3D#000000 face=3D"Eras Medium ITC"></FONT> </DIV>
<DIV><FONT color=3D#000000 face=3D"Eras Medium =
ITC">Regards,</FONT></DIV>
<DIV><FONT color=3D#000000 face=3D"Eras Medium ITC"></FONT> </DIV>
<DIV><FONT color=3D#000000 face=3D"Eras Medium ITC">Wade=20
Holguin</FONT></DIV></BODY></HTML>
------=_NextPart_000_0019_01BE067F.90FF0D40--
View index by [date] [author] [subject]
Previous message: RE: [M]: RE: Magellan II - LX50 Questions, David W. Bonnell
Next message: [M]: lx50 ccd jack pinout, Jose Mtanous
|
|