- Star Eccentricity Help
Re: Star Eccentricity Help
toggle quoted messageShow quoted text
Is the solution a Planewave?? J
either that, or I hear AP has a 17" reflector they are working on :)
>>What should I expect for good eccentricity - .35ish??
generally eccentricity of 0.5 or lower is considered 'perceptibly round'
I'm not sure i would 'expect' that, but i would certainly aim for that
Thanks Brian. I’m sure mirror flop is a definite possibility, even with the Edge mirror being “locked down”. Is the solution a Planewave?? J
What should I expect for good eccentricity - .35ish??
From: email@example.com [mailto:firstname.lastname@example.org] On Behalf Of Brian Valente
Sent: August 9, 2020 9:04 AM
Subject: Re: [ap-gto] Star Eccentricity Help
I'm poking around in your logs some, and I'm waiting to hear back from someone else I asked a Q about, but I can see your RA corrections are primarily one-sided at higher altitudes (and a corresponding increase in RA and therefore your eccentricity goes up), and as you get lower in the sky, RA corrections become more even on both sides, and your RA RMS and eccentricity both go down
My suspicion is mirror flop or something shifting in your equipment
No, no seperate guide scope. I'm using an Ultrastar guide camera on a QHYOAG.
Join email@example.com to automatically receive all group messages.