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Thread: Almanac and Celestial Navigation Calculator

  1. #21
    Join Date
    Jan 2021
    Location
    Norfolk, VA, USA
    Posts
    15

    Arrow Update!

    New version posted at my website.

    Changes:
    v 0.2.6
    • Added printable bodies list
    • Reformatted notes on "Precession and Stars" tab




  2. #22
    Join Date
    Jan 2021
    Location
    Norfolk, VA, USA
    Posts
    15

    Arrow Update!

    New version at my website.


    beta v 0.2.7 Bug fixes/changes:

    • Fixed a bug causing the intercept "away/toward" cell for sight #10 to remain empty
    • Updated the cities database from ~15,500 cities to Pareto's current [free] offering: 26,570 cities (+ the two suggested cities)




    And here's an animation I made showing "Xerxes' Eclipse" on Oct. 2nd, 480 BC:


  3. #23
    Join Date
    Mar 2005
    Location
    DELRAY BEACH, FLORIDA
    Posts
    339

    Default

    My friend recently bought me a rather high-end Celestron telescope for this past XMas. It's computer-controled, but I still want to learn to be able locate and recognize celestial objects from memory - perhaps your spreadsheet may help(?) So thanks for that...

  4. #24
    Join Date
    Jan 2021
    Location
    Norfolk, VA, USA
    Posts
    15

    Default

    Quote Originally Posted by UPHILL3 View Post
    My friend recently bought me a rather high-end Celestron telescope for this past XMas. It's computer-controled, but I still want to learn to be able locate and recognize celestial objects from memory - perhaps your spreadsheet may help(?) So thanks for that...
    There are numerous great apps for Android that will help with that: Sextant Stars, Google Sky Map, Nightshift (great app for astronomy) just to name a few. I think you can also get Stellarium on mobile. I don't use Apple products, so I can't advise on that.

    Stellarium for desktop is an outstanding program, and it's free. My spreadsheet does give some information which would be interesting to amateur astronomers. But I wouldn't recommend it to anyone who isn't somewhat familiar with all of the concepts involved.

    I have a Travel Scope 80 from Celestron (in addition to all my sextants, transits and other toys). That's what I used to take the 'blue Moon' picture (blue filter also from Celestron) which is the background of the homepage of my website. I want to get an Omni XLT 120 ... but everyone is sold out at the moment. Oh, well ...

    Cheers!
    Sean C


  5. #25
    Join Date
    Jan 2021
    Location
    Norfolk, VA, USA
    Posts
    15

    Arrow Update!

    New version available at my website.

    v 0.2.8 - 2021, Feb 28

    • Increased the number of decimals of azimuth included in the data series to a ridiculous precision.
    • Fixed a bug causing the spreadsheet to display wildly inaccurate values for the equation of time under certain circumstances.

  6. #26

    Default

    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.
    My forum project. Click me
    OOM errors? Read this.
    Pick an Amazon wish list, help a child out
    From RLG, Fly heading 053, intercept 315 DVV, look for the orange glow of a SAM.

  7. #27
    Join Date
    Jan 2021
    Location
    Norfolk, VA, USA
    Posts
    15

    Default

    Quote Originally Posted by CRJ_simpilot View Post
    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!

  8. #28

    Default

    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.
    My forum project. Click me
    OOM errors? Read this.
    Pick an Amazon wish list, help a child out
    From RLG, Fly heading 053, intercept 315 DVV, look for the orange glow of a SAM.

  9. #29
    Join Date
    Jan 2021
    Location
    Norfolk, VA, USA
    Posts
    15

    Default

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

  10. #30

    Default

    Check your PMs.
    My forum project. Click me
    OOM errors? Read this.
    Pick an Amazon wish list, help a child out
    From RLG, Fly heading 053, intercept 315 DVV, look for the orange glow of a SAM.

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