NavList:

Looking at the photo from that Pacific island, I need to find a place where the sky looks like the image. Frank Reed's video animation posted a couple of days ago shows CLEARLY that the relative altitudes of a pair of stars is correlated to latitude. When we look at Procyon and Sirius, for some latitudes, Procyon is higher. Other latitudes, Sirius is higher. Also, I get that ANY pair of stars gives us a fix. That's basic celestial navigation. But in this case we don't know the time (or the date and only an approximate longitude) so where do I start.

If I treat this as a standard intercept navigation problem, I need to pick an AP. But how?! I need some combination of longitude and time (and date) that puts Sirius and Procyon low in the eastern sky.

I know it's the eastern sky because of the orientation of Orion. And also, Frank Reed taught us in his intro celestial class years ago how to use the orientation of Orion to estimate latitude using an Arrow built around the belt of Orion. Based on that, the latitude looks like maybe 30 North. I was thinking I might be able to open Pub.249 vol.1, the Selected Stars book, and look for a case that matches the photo. I have an old digital copy of pub249 for the year 2015, and it shows Procyon at 32° 24' with Zn 105 and Sirius at 27° 50' with Zn 134 on the same line. This is for LHA of Aries =60 on the page for 30 N latitude. That's sort of what I'm looking for. Both stars low in the east (not low enough but I can fix that). How do I justify using 60° for LHA of Aries? Should I??? I can try other latitudes on other pages.

J
Go Huskies!