A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: David Pike
Date: 2017 Dec 22, 00:17 -0800
I’m afraid I know where this is, because I stumbled upon the original snap while looking for Milky Way illustrations on the net. All I have to do now is prove it from the information given.
My first problem is that I’m pretty sure which constellation we’re looking at, but I can’t positively identify all the stars from pictures on the web. When I try to download ‘Stellarium’, my best laptop gives me all sorts of dire warnings and recommends not doing so. Therefore, should I download it anyway, or should I download it onto the less important net-book I use when travelling? Also, should I download the 64bit or 32bit version? I’m running a version of Windows 7, and I'm a digital dinosaur.
My second problem is that I’m sure I’ve seen a method of finding latitude from two simultaneous altitudes and no timing information somewhere, but I’ve looked at all my books and I can’t find it. The net wasn’t much help either. The thing is, am I looking for a simple 2D solution like Mer-Pass, or am I supposed to get into spherical geometry equating two or more spherical triangle with known sides, namely co-alt and co-dec, and a known angle between, namely diff in SHA, to find a common unknown side, co-lat? More hints please. DaveP