Re: EXOS2 PMC-Eight Polar Alignment issue.
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BEWARE of some phones and their app for compass and level. My phone is way off.
Go to Home depot and get a half way decent level and compass.
From: Bill Kinnair via groups.io <kinnawill@...>
Sent: Thu, Sep 3, 2020 2:46 am
Subject: Re: [ESPMC-Eight] EXOS2 PMC-Eight Polar Alignment issue.
On Wed, Sep 2, 2020 at 09:41 PM, Jerry Hubbell - Explore Scientific VP Engineering wrote:
On Wed, Sep 2, 2020 at 01:22 PM, Bill Kinnair wrote:
I think I might be polar aligning wrong it's all so confusing, can you confirm that Polaris has to be centred in the little circle or do I need to preform some steps before hand?
You should use a level app on your phone if you have one and a compass to independently verify that you are very close (to within a couple of degree) of the North Celestial Pole (NCP). If that is the case, then you should be within a 2 to 3 degrees of the target when slewing to the object. Close enough is good enough for this first try. Don't forget to take into account you local Magnetic Declination for the compass reading.
Vice President of Engineering
Explore Scientific, LLC.
jrh at explorescientific.com
1010 S. 48th Street
Springdale, AR 72762
Author: Scientific Astrophotography: How Amateurs Can Generate and Use Professional Imaging Data
Remote Observatories for Amateur Astronomers: Using High-Powered Telescopes From Home
Mark Slade Remote Observatory (MSRO) IAU MPC W54 Equipment
Mounts: ES PMC-Eight G11 + Telescope Drive Master (TDM)
Scopes: ES 165 FPL-53 ED APO CF, ES 102 FCD100 ED APO CF
Cameras: QHY174M-GPS + FW, QHY163C
Misc: 3-inch 0.7x Focal Reducer Field Flattener, Filters: Luminance,
Red, V-band Photometric, Diffuser, 200 lpmm Spectral Grating
Software: MaxIm DL 6, Cartes du Ciel, Astrometrica, AstroImageJ, AutoStakkert!
I don't think this is my issue, my issue is trying to read/understand the reticule markings in the Polar scope they are confusing.
HomeBru 6 inch Reflector f 6.6
HomeBru 85 mm Refractor f 5.6
PMC-8, EXOS 2
Long retired EE.
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