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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

Try the Trip Calculator


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Trip Calculator start screen

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Delayed start date example

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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 [3D Local Stars] Viewscreen, which can only be viewed when you use the browsers; Internet Explorer version 11, Maxthong or SeaMonkey and have installed the free: Cortona 3D Plugin.

If you use other browsers, like Firefox, Chrome, Opera and Edge you will not be able to use the Cortona plugin and so you CANNOT see the [3D Local Stars] Viewscreen. If you use these browsers, the control buttons to open the [3D Local Stars] Viewscreen will be hidden.


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 across a multiple monitor system.

  The Starship can fly 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 and educational audio playlists and featured music for each destination.

All features work using these browsers:

Internet Explorer
Internet Explorer version 11

Downlad Maxthong

Download SeaMonkey

All features work, except the [3D Local Stars] Viewscreen, when you use these browsers:

Firefox 52 or newer   Chrome Browser
Microsoft Edge

Full Starship Simulator

Any browser from the left column can access the Starship Simulator. Only the top, three browsers, IE-11, Maxthong or SeaMonkey with the free Cortona plug-in installed, will be able to see the [3D Local Stars] Viewscreen feature.

The four browsers in the bottom left area have been tested to use all other Starship Simulator features, but they will not work with the [3D Local Stars] Viewscreen.

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 will load much faster after the first time.

Try the Starship Simulator

Key Lever

Remember, your choice of which browser you use, will affect whether you have access to the controls for the [3D Local Stars]

You may open [3D Local Stars] Viewscreen, here, directly, with these browsers:

Internet Explorer
Internet Explorer version 11

Downlad Maxthong

Download SeaMonkey

Download Pale Moon

Download Lunascape
Lunascape Browser

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

[3D Local Stars] Viewscreen Only

The browsers, listed immediately to the left, with the free Cortona 3D Plugin installed, will work here and open the [3D Local Stars] Viewscreen.

Pale Moon and Lunascape Browsers also work here. They are not listed above, because they fail for background position movement in the Starship Simulator.

 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


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: April 24, 2018   |