NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Arc shapes
From: Bill B
Date: 2004 Oct 22, 17:37 -0500
From: Bill B
Date: 2004 Oct 22, 17:37 -0500
A follow up question to help me visualize relationships. I could plot Hc against azimuth for several dates, but I am hoping the more learned among you have a quick visual answer. Assume a fixed position of N40, W 90. If I were to plot Hc for Sun each minute it would form an arc. Now assume I do this on winter solstice, an equinox, and summer solstice. I understand the Hc will shift by approx. 23d 26.4' along the y axis between dates, and the the summer solstice arc will extent furthest out on the x axis. My question is, if I slid all three plots together, would the curves be similar (again noting there will be areas missing in the equinox and winter solstice plots)? Thanks Bill
