Almanac and Celestial Navigation Calculator

Yeah, it doesn't work in Libre Office.

 

You said you have 15,500 locations of cities? Can I get that list? I've had a project in mind and I need a list like that. Thanks.

Yeah, it doesn't work in Libre Office.

 

You said you have 15,500 locations of cities? Can I get that list? I've had a project in mind and I need a list like that. Thanks.

 

Sure. In fact, you can get 26,000 of them now ... from the same place I did:

 

Pareto Software, LLC

 

That's just the free database. There are paid options for up to 4.2 million cities!

 

Cheers!

Thanks. That might do the trick, though, I may have to convert for FS format on the coordinates, not sure. And if I do I need to know how to do that as well.

If you can tell me what the format is, I might be able to do it. Shouldn't be hard, really.

Check your PMs.

New version available at my website.

 

v 0.3.1 - 2021, Oct 31

 

• Added rise, set, transit and twilight calculator.
  
• Increased precision of azimuths on the printable list to 0.1°.
  
• Added button to Data Series calculator to get the date and time from the Almanac.
  
• Added ecliptic longitude of Sun, Moon and planets to the Data Series calculator to facilitate determination of the times of equinoxes, conjunctions, etc.
  
• Corrected a minor error in the calculation of Ha of the LL of the Moon and Sun at extremely low altitudes.
  
• Added PA correction to the Sun.
  
• Updated delta-T table.
  
• Extended visibility chart to -5°.
  
• Minor formatting changes.
  

Apologies, but I just found a bug ... of course. And it's a bug I thought I had already squashed. Maybe I'll get it right this time ... :o [Link]

 

v 0.3.2 - 2021, Nov 2

 

• Fixed a bug [again] causing the spreadsheet to display incorrect values for the equation of time under certain circumstances.
  

I have added the option to the sky chart to display all 1,535 stars from the basic FK5 catalogue (see screenshot, below). As with the navigational stars, corrections for proper motion have been included. There is a check-box below the chart to show or hide them. These will not be selectable in the almanac or sight reduction calculator. But if you hover your mouse over them, the calculated azimuth and altitude will be displayed. So, they can be used for navigation in a pinch ... you'll just have to plot the LOPs manually. Maybe I will change this in the future.

 

I have also tweaked the map alignment. Waypoints shouldn't be plotted off the edge of the map anymore [mostly], and the waypoints, DR and fix should be plotted a bit more accurately. (Although at this scale I admit it's hard to see the difference.)

 

As always, the new version is available at my website. Cheers!

 

v 0.3.3 - 2021, Nov 7

 

• Added the option to the sky chart to display all 1,535 stars from the basic FK5 catalogue. (This increased the size of the spreadsheet from 2.5MB to 3.7MB.)
  
• Tip: You can hover your mouse over any star to see its calculated azimuth and altitude.
  
• Fixed a bug causing the almanac date and time to change when using the data series or rise/set calculators. (Almanac date and time will still change when using the sight reduction tab.)
  
• Improved map alignment. Waypoints and DR/Fix will now be plotted more accurately.
  
• Minor formatting changes.
  

 

New version available at my website: https://www.cooknavigation.com:

 

v 0.3.4 - 2022, Oct 24

· Added day of the week calculation on Almanac tab.

· Added the option to display the celestial equator and ecliptic to the sky chart.

· Added the ability to increment time on the Almanac tab.

· Updated the delta-T values.

· Moved the "Auto-Fill" button for the date of celestial sights and added an arrow to hopefully clarify the button's purpose.