madhopper50
SOC-8
Has anyone created a subsector showing earth? Or a subsector based on the SyFy show "Killjoys"?
Subsector Showing Earth
- Thread starter madhopper50
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The Solomani Rim has Earth in it. I don't know if that's what you're looking for, though.
Could always go here: https://travellermap.com/?x=14.289&y=-107&scale=64&options=58363
And the MTU thread has a near Earth subsector as well, I think with something closer to the stars around Earth.
And the MTU thread has a near Earth subsector as well, I think with something closer to the stars around Earth.
ShawnDriscoll
SOC-14 1K
madhopper50
SOC-8
Thanks for all the input. Another question, I see sector maps, subsector maps, but no blank maps for a system. What scale would a system map be based on?
ShawnDriscoll
SOC-14 1K
System maps are almost never to scale. Too much voidness going on.
Xerxeskingofking
SOC-13
Due to the way that traveller jump drives work, the system beyond the 100 diameter limit is basically as distant as the next system, so most systems are basically undeveloped outside of the mainworld and maybe the gas giant and the odd belter in the asteroids.
Why do to Venus if you can get to alpha centuari for the same effort?
Math doesn't support your contention. Any travel under 6 days is better.
671 Gm (gigameters= million km) is the rough distance
Supporting math
| 6 days | 6d |
| 24 hours per day | ×6= 144 hr |
| 3600 seconds per hour | ×3600= 518400s |
| halved to get flip time (T) | ÷2=259200 sec |
| quantity squared (AT²/2) | T²= 67,184,640,000 |
| multiply by acceleration (AT²/2) | ×10=671,846,400,000 |
| divide by 2 (AT²/2) | ÷2= 335923200000 m per leg |
| double for flipping | ×2=671,846,400,000 meters per 6 days |
| convert to Gm | ÷10e9=671.8464 Gm per 6 days |
| convert to AU | ÷149.598 = 4.491 AU |
For the Sol System, that puts mars faster by 1G burn than by jump at all points of the year -it's semimajor is 1.524 AU, Earth's is a peak of 1.017 AU so... adding them together, peak is about 2.5 AU.
Even most of the asteroid belt is faster by 1G drive.
To recap in rounded to 1 place numbers, 6 days is:
For 0.001G 0.224 LS
For 1G, about 4.5 AU
For 2G, about 9 AU.
For 3G, about 13.5 AU
For 4G, about 18 AU
For 5G, about 22.5 AU
For 6G, about 27 AU
Adding day 7, above ×1.35 (average jump duration)
Adding day 8, above ×1.78 (longest normal jump duration)
| Mercury | 0.387 |
| Venus | 0.723 |
| Earth | 1.000 |
| Mars | 1.524 |
| Jupiter | 5.203 |
| Saturn | 9.537 |
| Uranus | 19.191 |
| Neptune | 30.069 |
| Pluto | 39.482 |
If the source world and the target world, added together are less than the distance by thrust, it's always in reach faster by that constant thrust. If the difference (|A-B|) of the two is less than the distance by thrust, it's sometimes faster.
Not so.
A good scale for system maps is anywhere from 0.1 to 5 AU, depending upon what you're needing it for. Note that worlds are points on this scale, but that's irrelevant for mapping purposes; if the locus of worlds on jump charts was to scale, you'd not see the stars, let alone the worlds around them.
Noting that earth's orbit travel is about 6.3 AU, if your system turn is a day,
you need 365.24 hexes for an orbit, which, if "simplifying" orbits to hexagons, is 0.017 AU per hex... and radius 58 hexes. Doable.
Make it a week, 52.17 turns per year, so, earth hits radius 9... and each hex is about 0.12 AU.
ShawnDriscoll
SOC-14 1K
That's just one orbital path. Who would bother with mapping the 7 other orbital paths on the same map? That's why I mentioned scale.
That is one showing how to pick a scale reasonable for one's needs.
The linear maps provided in T5 are log-scaled and 1-dimensional.
Most of the time, players won't be running around the outer systems, so a large fraction of an AU is an excellent mapping scale. And there are MANY good reasons to use a 2d map - many of which are specific to a few styles of play.
One, which some of my players have encountered, was a war between multiple worlds in a single system. The other is a TL8 or TL9 in-system trade campaign.
Heck, Firefly is a 5-star system, with worlds aplenty, and that could be mapped out at 0.5 AU hexes reasonably well.
The map becomes particularly useful when doing an in-system game, because it makes moving worlds to be a major part of play.
As Aramis has pointed out, there can be a LOT of play in a single system. I've stuck a Scout Way station in the belt, not the main world, for the resources available there (large rocks to make cheap hangars/repair bays, ice rocks for hydrogen, etc), as well as remote stations in the system for observation/experiments. Small research stations on the planet closest to the star ranging to stations out in the Oort for stellar observations. And there can be so many plots to explore: normal resupply craft is out of control to any of the remote systems, comm silence from any of them, strange energy sources, something detected and currently the group is the closest to that.
It all depends on your style of play: an adventure per planet and keep planet hopping, or a more in-depth view of the potential riches of a single system. If you check out any of my stuff linked in my sig you can see which way I fall on that spectrum, but it is all good.
It should also be noted that it's vastly cheaper in fuel as well under CT.
Pretty sure a couple cans of soda will power an M-Drive to your local Gas Giant.
madhopper50
SOC-8
Thanks! That is what I wanted, a game based on the "Firefly" or "Killjoy" universe. Jump drive not developed yet, just exploring one system.
The other way to view mapping solar systems is to use a delta-vee map and have a chart show the cost of various launch windows.
With Traveller style maps the issue isn't fuel capacity but the time it takes output the deltavee need to follow a specific brachistone trajectory.
Even with 6-G drives it possible that two bodies are in such a position around their primary that you have to take a longer path because the optimal trajectory is blocked.
The windows are periodic so a chart based approach could work without forcing the referee or players to the orbital mass.
This eliminates having to setup and track things on a map. And be more representative of reality.
A related way is to setup a map like the one for Eklund's High Frontier.
https://boardgamegeek.com/boardgame/172737/high-frontier-third-edition
With Traveller style maps the issue isn't fuel capacity but the time it takes output the deltavee need to follow a specific brachistone trajectory.
Even with 6-G drives it possible that two bodies are in such a position around their primary that you have to take a longer path because the optimal trajectory is blocked.
The windows are periodic so a chart based approach could work without forcing the referee or players to the orbital mass.
This eliminates having to setup and track things on a map. And be more representative of reality.
A related way is to setup a map like the one for Eklund's High Frontier.
https://boardgamegeek.com/boardgame/172737/high-frontier-third-edition
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