NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Celestial Navigation on TV
From: Frank Reed
Date: 2009 Oct 28, 20:29 -0700
From: Frank Reed
Date: 2009 Oct 28, 20:29 -0700
Brad, you wrote: "Of course, the chart is a blur but based upon the cluster of stars at the center, it could very well be the northern hemisphere." You're right. You have to squint at it. Right near the bottom of the star chart, you can make out the square of Pegasus. So that's 0h Right Ascension and sure enough the ecliptic reaches the edge of the star chart right there so the outer edge must be 0 deg Declination. Working around counter-clockwise, I can find Deneb and Vega, Arcturus, Regulus and the sickle, Castor and Pollux just about the ecliptic near 6h R.A. and a few others. It's a stereographic projection apparently. So what about the contestant asked to name ten Navigational Stars? He listed "Canopus, Polaris, and Vegas". Canopus is out - wrong hemisphere. And Vegas... That's the northern hemisphere, yes, but you gotta be kidding me! No "s". And finally, should we trip him up over Polaris? Sure, why not. While Polaris is, of course, used for navigation and it's smack dab in the middle of the northern hemisphere of the celestial sphere, it is NOT on the list of Navigation Stars which any experienced navigator should know. So he's gets a zero. Ha! And what was that television show? Well, the contestant's name was "Will Robinson" so even if you're not a baby-boomer, you will probably guess the show's name. You can watch this incredibly cheesy navigation test in an incredibly cheesy anti-hippy episode of this old 60s program. Go here and relish the guilty pleasure: http://www.hulu.com/watch/23803/lost-in-space-the-promised-planet. You will see the navigational triangle defined and the navigational stars tested while groovy go-go dancers dancing on pool tables (sinners!) listening to crazy loud music rot the minds of our youth (those "youths" would be older than me by now). Don't say I didn't warn you! :-) -FER --~--~---------~--~----~------------~-------~--~----~ NavList message boards: www.fer3.com/arc Or post by email to: NavList@fer3.com To , email NavList+@fer3.com -~----------~----~----~----~------~----~------~--~---