Celestial
8º48’S, 128º33’W
April 19, 2025, 2230 Ship’s Time | 8º48’S, 128º33’W | Full Mainsail & Poled Jib Top
“At certain times in the life of a navigator, it can be more useful for them to know not where they are, but where they are not.” — John Mellor, SAIL Magazine, November 1975
With Falken having happily found her stride and on the last 600-mile stretch to land, I found myself with some downtime to actually practice the one thing I set out to conquer on this passage—celestial navigation. I’ve really done my best to learn this dark art, but despite the hours of YouTube videos, online classes, and books, it’s maintained its ADHD-fueled mystery. I remember the first time Andy sat me down to explain the basics in Sweden last year using his signature “whatever fruit is available” presentation, and ever since it’s been my white whale. A geocentric model of the universe perplexes me, and I couldn’t get past the idea that celestial objects could be “above” something.
Well, with much patience and an open mind, we’re finally taking, reducing, and plotting sights—it’s starting to click. The last three days, the whole crew has taken turns getting in on the action, with Ted acting as a bit of a mentor for me. His approach is purely mathematical, using spherical trigonometry and a ream of graph paper to boot. I’ve opted for the more classic Pub 249 and Nautical Almanac route (cosine who?), made a bit easier with some of the celnav worksheets Andy made available from the Quarterdeck.
The other thing that has been made abundantly clear is the need for a good structure of planned sights! This means making a plan and researching what stars might be easily available come twilight because there’s not much time to dilly-dally. Being right near the equator, it would look something like:
- AM Nautical Twilight Three-Body Fix (zenith and approx. altitudes pre-calculated)
- Running Solar Fixes around Local Apparent Noon—with one sight shortly before LAN, one near LAN, and one shortly after to account for the almost 180º azimuth change in this part of the world.
- PM Nautical Twilight Three-Body Fix (zenith and approx. altitudes pre-calculated)
Are we actually able to pull this off? Well… not yet. If you read Andy’s previous blog, it should come as no surprise that we’ve had some successful star sights. Alas, tonight I’ve been stumped for the past hour trying to figure out why Aldebaran was giving me a terrible intercept—after some heavy cheating, I’ve determined it was actually Jupiter. My white whale swims off into the starlit swell of the Pacific. Here’s to hoping in these last few days, we can finally figure out where we are… or aren’t.
—Aidan Gray
59ºNorthApprentice
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The Penultimate Blog from Adrienne II
After 20 days, and 3000+ nautical miles, we're back on land. The motley crew of Adrienne II, consisting of 7 happy amateurs supported by 3 professionals, have completed an epic journey many dream of but few realize. So much of this trip has been about being present - with nature, with each other, with this boat. My biggest takeaway from this trip is the amazing crossing of the ITCZ (Inter Tropical Convergence Zone). We all hope you've enjoyed the blog as much as we've enjoyed creating it.
Mother Nature, you’ve outdone yourself!
It’s been a great experience to have a non-traditional trans-Atlantic, as it’s been packed with genuinely cool features. The Doldrums!! A place sailors have been talking about for centuries. The unpredictability is what made it such an exhilarating experience. While some might be frightened or alarmed by this kind of weather, I was embodied with a sense of calm and awe. There’s something wildly beautiful about being reminded how small you are, while feeling so incredibly alive.
A Heavenly High
As you have probably figured out at this point, the drug of choice on board is, of course, celestial navigation- an art which has hooked offshore sailors for centuries. Once addicted, navigators will emerge from down below only to get their fixes two times per day, and spend the rest of their days and nights down below doing complex spherical mathematics. On Adrienne II, our skipper is our dealer. I must confess that I myself gave in to the strange urge which I’ve felt witnessing my crewmates practice this fine art, and yesterday felt an amazing sensation as I was able to wield the sextant for the first time and with it, bring down the tip of our starboard spreader to the top of our front sprayhood, presicely measuring the angle between the two (35deg, 38,8’ min). This afternoon, Naxo then showed me how to get my fix from the very sun itself - and I now fear there is no turning back.