new G-11 user with questions
Hi everyone,
I am in the process of purchasing a used G-11 with Losmandy digital setting
circles and polar alignment scope from a fellow club member. After years of
using fork mounts, I'm still
By
Ray Porter <ray_porter@...>
·
#231
·
|
Re: Battery life
shortening its
acid batteries.
automatic
etc..
all types,
Thanks to all of you who responed. The battery is a lead-acid
battery sold by Pep Boys for boosting your car battery when needed.
The
By
havriliakjr
·
#230
·
|
Re: Battery life
this does no good to lead acid batteries, all you are doing is shortening its
life. Its definitely good for nicads but does not apply to lead acid batteries.
All you have to do is to promptly
By
hermperez@...
·
#228
·
|
Re: Battery life
I doubt it, most likely your battery pack is not in good shape. What kind of
batteries and how big is the pack made off?
I sometimes use a 5ah lead-acid gellcell and its good for two
By
hermperez@...
·
#227
·
|
Re: Battery life
The G11 should consume less than 1 amp per hour, but for safety's sake,
estimate that rate. The DSC's consumption should be negligible but again,
play it safe and estimate 0.5 amps per hour. If you
By
Paul Sterngold <psterngold@...>
·
#226
·
|
Re: Battery life
I use a 34 amp hour marine battery (a small battery, about the
size used in rider mowers) for my G-11 /w DSCs and it lasts all
night long even in the winter.
I use marine batteries because unlike
By
Rockett Crawford <Rockett@...>
·
#225
·
|
Re: skf ba2016 bearing set
I got mine at Nordic Bearing in Sudbury.
I'm in Toronto now so can't get numbers and don't have my file.
Call either Les at Nordic thru information..17055551212 or check skf webb for nearest
By
James A. Thibert <thibertj@...>
·
#229
·
|
Battery life
The battery pack that I use claims that a radio or TV can be
operated for 20 hrs. On several occassions, by freshly charged
battery went dead driving the G-11 with DSC. I couldn't understand
By
havriliakjr
·
#224
·
|
skf ba2016 bearing set
OK...where can I find one of these suckers??? I've tried a couple of
local places with no success.
Bill
By
Bill Faatz <faatz1@...>
·
#223
·
|
Re: G11 Fix (III)
Hi Paul...I've got that one but what I'm trying to do is extrapolate that to the 4x6"photo print of my star trails.
If I had used the st-4 or st7e I know this would be a lot easier than photo
By
James A. Thibert <thibertj@...>
·
#222
·
|
Re: G11 Fix (III)
A simpler formula for #1 below is:
Arc-secs per pixel = (pixel width / FL) * 206
You can nearly do this one in your head. Certainly with a simple
calculator.
It provides almost exactly the same
By
Paul Sterngold <psterngold@...>
·
#221
·
|
Re: G11 Fix (III)
You know,my poblem has always been that I'm an economist and not a mathematician.I can tell you why or why not we'll never make any money at this but I can't figure out arctans...I'm going out to buy
By
James A. Thibert <thibertj@...>
·
#220
·
|
Re: G11 Fix (III)
Jimmy,
1. You can calculate arcseconds per pixel with the following formula:
ArcSec = 3600 * ARCTAN( (PixelWidth * 10^-6) / FL )
Where:
ArcSec = Width of Pixel in Arcseconds
By
Neal Barry
·
#219
·
|
Re: G11 Fix (III)
Hi Neal,it's looking good.I put a third 1"long bearing in each of my axies and it improved nicely but not like yours.
By coincidence,I offset my mount and took a few before and after startrails.
The
By
James A. Thibert <thibertj@...>
·
#218
·
|
G11 Fix (III)
Hi all,
Well, I'm reasonably pleased with the improvement that I have been able to
achieve in my G11's tracking and periodic error. Take a look at
http://www.barry.net/Astro/losmandy_g11_ra_pe.html
By
Neal Barry
·
#217
·
|
Re: Axis grease/lubs
That's great news.
Thank you Scott.
By
Reid Williams <reidwilliams@...>
·
#216
·
|
Re: G11 RA fix (II)
yes.mine went in 3/4's by hand (very easy,slight pressure no banging)
I might have put it all the way in but I felt using the thick washer and clutch handscrew would seat it better and more
By
James A. Thibert <thibertj@...>
·
#215
·
|
Vernier scale use
What's the proper way to use the vernier markings on the manual
setting
circles?? I understand that it is to interpolate between hash marks,
but it doesn't seem to work the same as my vernier
By
Bill Faatz <faatz1@...>
·
#214
·
|
Re: G11 RA fix (II)
wrote:
different city
with the
it turns
movement it's
axis off
bearing
Hi Jimmy
OK, according to your post on sct-user's group #12966, I need bearing
set skf ba2016. Since I don't use digital
By
Bill Faatz <faatz1@...>
·
#213
·
|
Re: Axis grease/lubs
Hello To All
The bearing came packed in a shipping oil, after we installed them
they were then lubricated with a Lithium grease. The mixture of
this grease and the shipping oil whould harden in a
By
scott@...
·
#212
·
|