Alternate Orbital Body Placement
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The following table represents a system for orbital placement based on Light minutes. This system will allow more than one planet to reside with in a Traveller orbit.
Select the orbit number per the Traveller rules and then flux for the actual position within that orbit.
Note: Multiple planets may now reside within a Traveller orbit. Just make sure they do not overlap. If they do, re-roll the flux dice for a new position or simply move the new orbit in or out one position.
Orbital Angle:
To determine the angle at which teh planet is currently located use the following formula: =((1D6-(1D6-1))+5+((1D6)-(1D6-1))+4)*10))/360. This will result ion a number between 0 and 359. this is the angle the planet is currently located at along its orbital path. Record the current game date on which this angle was recorded so that you can accurately track the orbital body's location at all subsequent and previous times durring game play. this applies to Planets, moons, stars and asteroids.
Units of Measure for Approximate Inner Edge of Orbital Zone | Adjusted Starting Point | 10% of Orbital Zone | Flux for Light Minute Position of Actual Orbit | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Traveller Orbit | AU | Light Minutes | -5 | -4 | -3 | -2 | -1 | 0 | 1 | 2 | 3 | 4 | 5 | ||
0 | 0.2 | 1.66 | 0.83 | 0.07 | 1.66 | 1.74 | 1.81 | 1.89 | 1.96 | 2.04 | 2.11 | 2.19 | 2.26 | 2.34 | 2.41 |
1 | 0.4 | 3.33 | 2.50 | 0.22 | 3.33 | 3.55 | 3.78 | 4.00 | 4.23 | 4.45 | 4.67 | 4.90 | 5.12 | 5.35 | 5.57 |
2 | 0.7 | 5.82 | 4.99 | 0.45 | 5.82 | 6.27 | 6.72 | 7.17 | 7.62 | 8.07 | 8.52 | 8.97 | 9.41 | 9.86 | 10.31 |
3 | 1 | 8.317 | 7.49 | 0.67 | 8.32 | 8.99 | 9.66 | 10.34 | 11.01 | 11.69 | 12.36 | 13.03 | 13.71 | 14.38 | 15.05 |
4 | 1.6 | 13.31 | 12.48 | 1.12 | 13.31 | 14.43 | 15.55 | 16.68 | 17.80 | 18.92 | 20.04 | 21.17 | 22.29 | 23.41 | 24.54 |
5 | 2.8 | 23.29 | 22.46 | 2.02 | 23.29 | 25.31 | 27.33 | 29.35 | 31.37 | 33.39 | 35.41 | 37.43 | 39.46 | 41.48 | 43.50 |
6 | 5.2 | 43.25 | 42.42 | 3.82 | 43.25 | 47.07 | 50.88 | 54.70 | 58.52 | 62.34 | 66.15 | 69.97 | 73.79 | 77.61 | 81.42 |
7 | 10 | 83.17 | 82.34 | 7.41 | 83.17 | 90.58 | 97.99 | 105.40 | 112.81 | 120.22 | 127.63 | 135.04 | 142.45 | 149.86 | 157.27 |
8 | 20 | 166.34 | 165.51 | 14.90 | 166.34 | 181.24 | 196.13 | 211.03 | 225.92 | 240.82 | 255.71 | 270.61 | 285.51 | 300.40 | 315.30 |
9 | 40 | 332.68 | 331.85 | 29.87 | 332.68 | 362.55 | 392.41 | 422.28 | 452.15 | 482.01 | 511.88 | 541.74 | 571.61 | 601.48 | 631.34 |
10 | 77 | 640.41 | 639.58 | 57.56 | 640.41 | 697.97 | 755.53 | 813.09 | 870.66 | 928.22 | 985.78 | 1043.34 | 1100.90 | 1158.47 | 1216.03 |
11 | 154 | 1280.82 | 1279.99 | 115.20 | 1280.82 | 1396.02 | 1511.22 | 1626.41 | 1741.61 | 1856.81 | 1972.01 | 2087.21 | 2202.41 | 2317.61 | 2432.81 |
12 | 308 | 2561.64 | 2560.80 | 230.47 | 2561.64 | 2792.11 | 3022.58 | 3253.05 | 3483.53 | 3714.00 | 3944.47 | 4174.94 | 4405.42 | 4635.89 | 4866.36 |
13 | 615 | 5114.96 | 5114.12 | 460.27 | 5114.96 | 5575.23 | 6035.50 | 6495.77 | 6956.04 | 7416.31 | 7876.58 | 8336.85 | 8797.12 | 9257.39 | 9717.67 |
14 | 1230 | 10229.91 | 10229.08 | 920.62 | 10229.91 | 11150.53 | 12071.14 | 12991.76 | 13912.38 | 14833.00 | 15753.61 | 16674.23 | 17594.85 | 18515.46 | 19436.08 |
15 | 2500 | 20792.50 | 20791.67 | 1871.25 | 20792.50 | 22663.75 | 24535.00 | 26406.25 | 28277.50 | 30148.75 | 32020.00 | 33891.25 | 35762.50 | 37633.75 | 39505.00 |
16 | 4900 | 40753.30 | 40752.47 | 3667.72 | 40753.30 | 44421.02 | 48088.74 | 51756.47 | 55424.19 | 59091.91 | 62759.63 | 66427.36 | 70095.08 | 73762.80 | 77430.52 |
17 | 9800 | 81506.60 | 81505.77 | 7335.52 | 81506.60 | 88842.12 | 96177.64 | 103513.16 | 110848.68 | 118184.20 | 125519.71 | 132855.23 | 140190.75 | 147526.27 | 154861.79 |
18 | 19600 | 163013.20 | 163012.37 | 14671.11 | 163013.20 | 177684.31 | 192355.43 | 207026.54 | 221697.65 | 236368.77 | 251039.88 | 265710.99 | 280382.11 | 295053.22 | 309724.33 |
19 | 39200 | 326026.40 | 326025.57 | 29342.30 | 326026.40 | 355368.70 | 384711.00 | 414053.30 | 443395.60 | 472737.91 | 502080.21 | 531422.51 | 560764.81 | 590107.11 | 619449.41 |
20 | 78400 | 652052.80 | 652051.97 | 58684.68 | 652052.80 | 710737.48 | 769422.15 | 828106.83 | 886791.51 | 945476.19 | 1004160.86 | 1062845.54 | 1121530.22 | 1180214.89 | 1238899.57 |
Note: The further out each Traveller Orbit is the more room for for placing planets exist. You can further subdicvide these areas as you see fit to make as acurate an orbital distance as you like. |
References & Contributors (Sources)
This article was originally developed for wiki.travellerrpg.com by William Richards 2024, all rights reserved. |
This list of sources was used by the Traveller Wiki Editorial Team and individual contributors to compose this article. Copyrighted material is used under license from Far Future Enterprises or by permission of the author. The page history lists all of the contributions.
- Marc Miller. Scouts (Game Designers Workshop, 1983), TBD.
- Author & Contributor: William Richards