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Re: Star - Star Observations
From: Brad Morris
Date: 2010 Mar 10, 11:19 -0500
From: Brad Morris
Date: 2010 Mar 10, 11:19 -0500
George, you wrote: cos d = (cos d +cos (H1 + H2)) cos h1 cos h2/(cosH1cosH2) -cos (h1+h2) After carefully examining your post, I can (hopefully) describe the terms H1 is the true altitude of object 1, should refraction not exist H2 is the true altitude of object 2, should refraction not exist h1 will be the observed altitude of object 1, when refraction is present h2 will be the observed altitude of object 2, when refraction is present. d is the observed distance, when refraction is present. D would be the true distance, should refraction not exist. D is not present in the equation above Should the equation read? cos d = (cos D +cos (H1 + H2)) cos h1 cos h2/(cosH1cosH2) -cos (h1+h2) I am also having a bit of problems properly grouping the terms. Is it term1 = (cos D + cos(H1+H2)) term 2 = cos h1 * cos h2 term 3 = cos H1 *cos H2 term 4 = cos (h1+h2) cos d = term1 * term2 / term3 - term4 that seems to yield a term which I cannot take the arc-cosine of. Help!!!! Best Regards Brad "Confidentiality and Privilege Notice The information transmitted by this electronic mail (and any attachments) is being sent by or on behalf of Tactronics; it is intended for the exclusive use of the addressee named above and may constitute information that is privileged or confidential or otherwise legally exempt from disclosure. If you are not the addressee or an employee or agent responsible for delivering this message to same, you are not authorized to retain, read, copy or disseminate this electronic mail (or any attachments) or any part thereof. If you have received this electronic mail (and any attachments) in error, please call us immediately and send written confirmation that same has been deleted from your system. Thank you."