Classes in celestial navigation and related topics
About me, Frank Reed
I teach all of the classes in celestial navigation presently offered by ReedNavigation, including all of the classes currently offered at Mystic Seaport. I am fluent in nearly every technique and tool in celestial navigation from ancient historical methods to the most modern computer-based applications, and I am the world's leading expert in the topic of lunars --the process of determining absolute time at sea by measuring with a sextant the angular distance between the Moon and the Sun (or a selected star or planet).
StarTalk television: Celestial Navigation Expert
I was recently a guest, aboard as an expert in celestial navigation, on the December 3, 2017 episode of StarTalk, a science talk-show hosted by Neil deGrasse Tyson which airs on the National Geographic Channel (look for S4E10). The episode is also available for streaming (paid) on youtube, itunes, etc. Dava Sobel, author of "Longitude" also joined us in the studio for one segment.
- Developer, GPS Anti Spoof apps for Android and iOS
My "GPS Anti Spoof" app has been released on the Android app store (Google Play Store). The app does everything. Shoot the Sun (or Moon, planet, star) with your sextant and directly compare with the displayed altitude in the app. No calculations / no paperwork. It's great for sextant training --you get instant feedback. And it easily detects GPS spoofing, if you're worried about pirates and that sort of thing! Unlike nearly all other available apps and software, this app also incorporates the deflection of the vertical, which can throw off your sights by more than one minute of arc near many islands. The app is dead-on accurate. Find it in the Google Play store here. The basic version is free. There's also a paid "pro" version. The iOS version is on the way. The Apple approval process is notoriously slow, but that's how they keep the world safe from security threats, right? Here's the pdf of my Navigation Symposium presentation on this concept:
Head Cartographer, Centennia Historical Atlas
The principal focus of my business, Clockwork Mapping (formerly Centennia Software), is the development and marketing of the Centennia Historical Atlas. The Centennia Atlas was, for over fifteen years, required course material for all students at the US Naval Academy at Annapolis, MD. Please visit HistoricalAtlas.com to learn more. My youtube channel has over 1.2 million views. Other videos, generally copyright-violating, based on my map animations have accumulated over twelve million hits.
Invited Whaleship Voyager
Celestial navigation expert on the 38th Voyage of Mystic Seaport's 1841 whaleship Charles W. Morgan, July 2014. Demonstrated historical celestial navigation techniques at sea off the coast of Massachusetts. Organized and operated 38Talk, an online community for discussions among Voyagers and others related to the 38th Voyage. Featured guest in live webcast from the deck of the Charles W. Morgan as we sailed among the whales on Stellwagen Bank north of Cape Cod, July 2014. I discussed the basics of "nautical astronomy" for an introductory audience: watch the video. I also appeared briefly on the CBS Evening News in their coverage of the 38th Voyage.
Gravitation and Physics
I am an expert in gravitational physics including topics ranging from theoretical general relativity to practical tidal analysis. My thesis at Wesleyan University (Middletown, CT, 1984) was awarded High Honors, and I was also the winner of the Sherman Prize in Mathematics and the Bertman Prize in Physics. Read an article about me from Physics World magazine in their Once a Physicist column.
Leap Second Conference
In October 2011, I presented a paper on celestial navigation and the issue of "leap seconds" at the conference on "Decoupling Civil Timekeeping from Earth Rotation" hosted at the headquarters of AGI near Philadelphia. I was the "small fry" non-academic among the world's experts in positional astronomy and the science of time-keeping including Dennis McCarthy, George Kaplan, and P. Kenneth Seidelmann among others. Neil deGrasse Tyson, television personality, host of the new Cosmos, and director of the Hayden Planetarium in New York City, also joined us as an interested guest. Here's a photo of us.
In addition to appearing recently on StarTalk television, I was a guest on Neil deGrasse Tyson's StarTalkRadio in 2012: StarTalkRadio: Time Lords and the Science of Keeping Time (to listen to my contributions, go to time stamps 12:09-14:50 and 24:20-25:35).
Published article "Celestial Navigation and UTC"
On the significance of changes in 'leap second' procedures and its potential impact on traditional celestial navigation. Presented at conference in Exton, PA. October, 2011. Published in the Journal of the American Astronautical Society, 2012. Read the preprint.
Interview on NPR's "Here and Now"
Discussing the future of celestial navigation and the recent announcement that some basic instruction in celestial navigation will once again be part of the curriculum at the US Naval Academy. October 2015. Listen here.
"After Longitude", National Maritime Museum
In March 2012, I delivered two presentations on lunars at the "After Longitude" conference at the National Maritime Museum at Greenwich, UK (a few hundred yards from the Prime Meridian). One paper focused on the role of lunars in American commercial dominance in the Pacific in the 19th century, especially aboard whaling vessels. The second paper "Lunars in the Space Age" focused on modern use of lunars for position-finding in space. Lunars were shot during Apollo missions to the Moon, especially on the flight of Apollo 8, the first manned mission to reach lunar orbit.
Susan P. Howell Memorial Lecture
In June 2004, I gave the Susan P. Howell Memorial Lecture on the topic of Lunars focusing on the use of lunars aboard the Boston trading vessel Reaper in 1809-1810. The logbook of this voyage is in the research collection at Mystic Seaport.
I have organized "Navigation Weekend" conferences in 2006, 2008, 2010 and 2017 bringing together navigation enthusiasts, scholars in the history of astronomy, and practical navigators to the Treworgy Planetarium at Mystic Seaport. I also did numerous presentations of my own at these conferences on lunars, the history of the Nautical Almanac, and other topics.
Experience at Mystic Seaport
Though I am not on staff now, I've been employed by Mystic Seaport directly several times over the past couple of decades. I have presented over 3000 planetarium lectures there primarily focused on topics in celestial navigation.
Management of NavList
I manage NavList, a community devoted to the history, modern practice, and future of celestial navigation and other forms of traditional position-finding. NavList began as an online community and our message boards continue as, by far, the most active arena for online discussions on these topics.
Navigation Instructor, Physics Instructor: Northeast Maritime
I've recently taught several intensive two-week USCG licensing classes in celestial navigation at Northeast Maritime Institute in Fairhaven, Massachusetts. I am a USCG-approved instructor in celestial navigation. I also taught an introductory college level conceptual physics course at NMI during the Winter/Spring term of 2017.
Editor, Pub.249 "Tables for Navigation"
I maintain the celestial navigation tables known as "publication 249", marketed commercially by Celestaire, Inc., which are used by thousands of vessels at sea as a backup method of celestial navigation. These tables list the altitudes and azimuths of stars during twilight enabling quick and easy sight reduction. The tables in volume 1 are updated every five years. I manage the complete update process including collecting data from official USNO sources and validating that data by independent calculation of each of over 400,000 numbers, and I also produce and edit the pdf from which the printed book is published.
Invited Planetarium Lecturer, Wickware Planetarium
During the fall of 2016, I presented two special hour-long planetarium programs at the Wickware Planetarium, Eastern Connecticut State University in Windham, Connecticut focused on topics in celestial navigation. These were unique, live programs written and developed specifically for these events.
Please look for me on Facebook and feel free to join our small celestial navigation Facebook group. It's a nice place for casual, light discussions, but NavList is where the real action happens.
None at this time.
- Sep. 15:
Celestial Navigatiion Presentation in Brooklyn, NY
- Sep. 29-30:
Easy Intro Celestial
- Oct. 13-14:
Modern Celestial Navigation
- Oct. 27-28:
Celestial: Age of Sail
- Nov. 6,7,8 evenings:
Modern Celestial Navigation
- By email or phone
© Copyright 2016, Frank Reed, Clockwork Mapping, Conanicut Island USA.