Home Web Projects Training Music Photography Production

SGC, a 3 Dimensional Galactic Coordinate System

Quick Access Links


Key Lever

[3D Local Stars] ONLY works
with browsers: IE v.11, Maxthong
or SeaMonkey with the free
Cortona Plug-in installed.

Interstellar Navigation Projects

Mission Profile Trip Calculator (v1.1) New March 27, 2018

A stand alone, Mission Profile Trip Calculator, that can chart mission parameters, including precise ship time dilation.
Now, with Audio and Music Tracks

    Chrome users: A recent update requires you to click on something, before audio will work. This means Chrome users would miss the first audio sound effect of the Calculator. I created a startup notice for Chrome users. Click the notice [Close] button to start the Calculator with full audio effects. Everything works normally, from that point. This means, Chrome has one extra step, for startup.

    You can also turn on audio by clicking first, the [No Audio] button and then right clicking the Reset button, inside the Calculator.

    If you don't like this new audio limitation, you can send the developers a message at twitter.com/chromiumdev

Try the Trip Calculator


 Click to enlarge

Trip Calculator start screen

 Click to enlarge

Delayed start date example

 Click to enlarge

Manual mode - You set mission parameters

  • How it Works
    1. Pick a Start, Destination and Ship.
    2. A mission profile chart appears.
    3. Ships traveling near to the speed of light, will get larger time dilations. Time goes slower, onboard the ship.
    4. Reality based ships travel at sub-light speeds.
    5. Most fictional ships travel at Faster Than Light (FTL) speeds.
    6. 38 ship types, each, with different days to top speed.
    7. Some ships have Short Trip Boosters for a quick 1/3 speed.
  • Guides
  • Features
  • Audio and Music Tracks
  • Earth vs. Ship time
  • Arrival dates with unlimited years
  • Set any custom departure or arrival date and the Trip Calculator auto-finds the other.
  • Two stellar databases: Images (165 locations), 200 ly, (2041 locations)
    (over 160 million possible trips)
  • Choose Rendezvous or Fly-by mission types.
  • Find distances between any two locations.
  • Mission data: Days to Top Speed, Top Speed achieved, G-Force, Ship time dilation
  • Rendezvous missions, that fail to reach top speed, begin mid-point deceleration and become 'Inverted V' type missions. Similar, exception mission profiles for Fly-by, where top speed is not achieved, can also occur. With such missions, special case math and charts, are automatic.

Starship Simulator (v1.0) New April 24, 2018


Not all browsers are created equal.

The Starship Simulator has a fly-through, [3D Local Stars] Viewscreen, which can only be viewed with some browsers, listed below. You also must have installed the free: Cortona 3D Plugin. (Install the browsers before the plugin.)

This [3D Local Stars] Viewscreen is an original, 3D world, which I created from scratch and it uses a Virtual Reality code, VRML, which still gives an amazing, 3D smooth, fly-through experience, better than any other code, in my opinion. It's worth checking out. I believe it is the largest VRML world online.

Android works, but has issues. I would not recommend it. There are ways to fix the code for smartphones, but I have not plans to do this. With all the layers of controls and options, the simulator is best experienced with a notebook or desktop.


Starship Simulator Guide version 1.0 April 22, 2018

Updated guide version 1.0. Please right click and save this Guide to your computer. (11 MB)

Starship Simulator

What is it?

An educational, Starship, reality based, simulation with audio, animation and video effects. Features can run simultaneously, just like a flight simulator. There is no game play.

  Controls, buttons, pans and zooms are animated with cockpit sounds. Multiple Viewscreens for Earth, Moon, Mars, Solar System, [3D Local Stars], etc. can be opened separately and moved around a multiple monitor system, if you have one.

  The Starship can fly, explore, pan and zoom to over 40 different destinations, show mission stats for 38 ship types. A lever control can open the Trip Calculator that allows more precise, mission profiles, between any locations.

  Additional features include: Comm link audio of historic, educational playlists and featured music for each destination. Download the illustrated manual, above, to see all the features.

The Starship Simulator works with these browsers:

Download SeaMonkey

Chrome Browser

Chrome gets an opening notice to activate the audio feature.

Firefox 52 or newer

Downlad Maxthong

Full Starship Simulator

If you are using any browser from the left column, you can access the Starship Simulator. (Other browsers will not work with all features.)

Starship Simulator with systems off
Full Starship Simulator Cockpit

Cortona 3D Plugin required for the [3D Local Star] Viewscreens.

Please allow the Starship Simulator several minutes to load. Graphics and audio will load faster after the first time.

Try the Starship Simulator

Key Lever

Only Seamonkey and Maxthong (Firefox v51, Chrome v61 or before) browsers will show buttons for the [3D Local Stars]. But, other browsers, listed below, can skip the Starship Simulator and access the [3D Local Stars] Viewscreen directly.

The [3D Local Stars] Viewscreen, works with these browsers:

Internet Explorer
Internet Explorer version 11

Download SeaMonkey

Downlad Maxthong

Download Pale Moon

Download Lunascape
Lunascape Browser

(Firefox versions 51, March 2017, and older will also work.)

[3D Local Stars] Viewscreen - Direct Access

You must install or use one of the browsers on the left, (each logo is linked to an official download page), and you also need to have installed the free Cortona 3D Plugin. Only then, will you be able to open the [3D Local Stars] Viewscreen. Always install new browsers first, then the Cortona Plugin.

If you use any other browser, or if you try to access the Viewscreen without installing the Cortona Plugin, you will just download copies of the [3D Local Stars] file.

 Local Stars VRML MP Navigator Fly Through 30 light year map Start Position screenshot

Access only the [3D Local Stars] Viewscreen

Cortona 3D Plugin required

Try the Viewscreen

Pale Moon and Lunascape are multi-core browsers. Set them to Mozilla or Chrome for best functionality.

If you try another browser or your browser is not setup correctly, the [3D Local Stars] world will just download to your computer and not open.


Click to access Screenshots

See Screenshots of the Starship Simulator

Video Demo

Buy the Ray Lynch music from this video

Lesson Videos

Detailed log of bug fixes and changes

Interstellar Navigation Projects

Mission Profile Navigator (v.4.2)

A navigational tool with a printable report for mission profiles bewteen any two locations, or to a rendezvous with a moving, second starship.

Try it in Excel

    You must have a copy of Excel 2007, or newer on your computer, to be able to view this worksheet. It is too complex to run with MS Office 365 - Excel online.

 Click to open large image
Click to open large image


  • Earth and Ship mission durations
  • Arrival dates
  • Custom settable dates
  • Auto course adjustments for stellar proper motion based on ship type and mission duration
  • Ship database
  • Plots closest passing distances during mission for stars within sensor range
  • Ship headings in RA and galactic dec
  • PDF Mission reports
  • 3D Position charts
  • Stellar Dbase search, sort, start and destination locks

Mission Navigator Profile Guide in pdf

Upcoming releases Spring 2018

  • Update stellar dbase to include recent local star discoveries and exoplanets.

Stellar Distance Matrix ( Excel spreadsheet ) (v.2.0c)

Check distance between two stars within 20 light years. Set manual ship speed and also find mission durations.

Try it in Excel

Click to enlarge
Click to open large image


  • Data entry in 6 white cells in Column D
  • 126 Stars are automatically positioned in their real positions, based on Proper Motion and start date.
  • Accuracy ranges can be set.
  • Margin of error in distances between stars shown, based on accuracy settings.
  • Enter custom start dates from Jan 1, 1900 to Dec 31, 9999. Stars automatically track to estimated real positions.
  • Average ship speed can be set.
  • Mission duration in Earth Years shown for each star to star distance based on average ship speed.
  • Sort buttons can sort columns and rows, independently, by Distance or Alpha
  • 6384 unique star to star data distance blocks in the matrix.

Last updated: May 17, 2018   |