Will someone please upload a copy of the 2017 Altitude Correction Tables?

I've been using the an old version of them- mostly for the Sun.  There isn't much difference between years, it seems.

Paul

For those in Southern Latitudes it's now Fall.  The Sun in South Lat. is now "Contrary name".

For those in Northern Latitudes it's now Spring.  The Sun in North Lat. is now "Same name".

GHA Aries Long Term for the years 2017 to 2025 has just been added to our site.

You'll find it under Essential Celestial Navigation downloads

The file is- Table 4 GHA ARIES FOR THE YEARS 2017-2025

The previous Table 4 GHA ARIES, etc....was for the years 2011 to 2019.

Let me know how you like it or any changes you'd suggest.

Clear skies,

CelNav57

Hi,

New guy here. I'm more of a land navigator with the sextants and was wondering if anyone had any experience or ideas about a make and model of surveyors transit that might be best suited to CelNav.
They do come up for sale from time to time and I'd like to have something in the back of my mind to keep an eye out for if I can swing the expense.

TIA

The American Practical Navigator (Bowditch) 2017 version has just been uploaded to the site.

It's perfectly organized by Sections and Chapters allowing you to easily find and download the material you want.

You can download the entire work also.


Get it here- 2017- American Practical Navigator- Bowditch

A page has been made just for Pub. No. 229 all Volumes

You can easily download individual Volumes covering a range of latitudes.


Pub. No. 229 web page

A page has been made just for Pub. No. 249 Vol 1, 2 & 3



Vol. 1 is for Epoch 2025 and is provided courtesy of Celestaire.



You can easily download individual volumes or a range of Latitudes.


Pub. No. 249 Epoch 2025 web page

Here's a link to a description of the Beaufort scale.

My guess is if anyone here has been in a Force 12 we wont be hearing from them anymore.

Beaufort scale- Picture & description

And another example-

Beaufort scale


Here's MeteoBlue with windspeed and wind barbs;

Wind barbs and windspeed

This has been up for a while.

Here's how to perform a star sight reduction using Pub. 249 Vol. 1

Go here- Methods  and scroll down to find this;

Complete Star Sight reduction Procedure

Based on Pub. No. 249 Vol. 1

Complete and thorough step-
by-step instructions for performing a
star sight reduction based on Pub. No. 249 Vol. 1 (aka- Ho-249)
Perfect for beginners using an AH

We thought it might be interesting to add a portion of the forum to the discussion of marine weather.  It doesn't have much to do with celestial navigation but we do, hopefully, all utter the phrase, "clear skies".

How many of you like to predict the wx yourself using your own instruments?

Or, if you do use services or programs, which ones are you accustomed to?

Are you often correct in weather prediction?