🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 377.4

Radius: 8.6

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.56 AU - 0.92 AU

Year: 424 Days

Day: 7.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,920,108 km

• M1: 106,962 km (0.12 R)
• M2: 384,317 km (0.118 R)
• M3: 716,125 km (0.102 R)
• M4: 995,723 km (0.102 R)
• M5: 1,506,750 km (0.089 R)
• M6: 1,873,713 km (0.1 R)
• M7: 2,216,292 km (0.1 R)
• M8: 2,545,557 km (0.1 R)
• M9: 3,164,145 km (0.049 R)
• M10: 3,594,986 km (0.053 R)
• M11: 4,178,717 km (0.064 R)
• M12: 4,574,553 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 190.4

Radius: 13.1

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.78 AU - 1.28 AU

Year: 697 Days

Day: 14.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,920,108 km

• M1: 162,912 km (0.119 R)
• M2: 649,853 km (0.115 R)
• M3: 1,094,159 km (0.077 R)
• M4: 2,320,861 km (0.116 R)
• M5: 2,871,980 km (0.05 R)
• M6: 3,372,834 km (0.099 R)
• M7: 4,071,306 km (0.085 R)
• M8: 4,937,478 km (0.036 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 957.3

Radius: 13.9

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.96 AU - 1.38 AU

Year: 844 Days

Day: 11.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 103.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,920,108 km

• M1: 172,935 km (0.044 R)
• M2: 694,733 km (0.105 R)
• M3: 1,140,534 km (0.034 R)
• M4: 1,581,997 km (0.067 R)
• M5: 2,395,660 km (0.07 R)
• M6: 3,167,735 km (0.104 R)
• M7: 4,214,770 km (0.114 R)
• M8: 4,658,328 km (0.11 R)
• M9: 5,095,752 km (0.111 R)
• M10: 5,824,144 km (0.051 R)
• M11: 7,489,767 km (0.035 R)
• M12: 8,755,515 km (0.029 R)
• M13: 9,198,474 km (0.072 R)
• M14: 10,159,491 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 433.7

Radius: 13.6

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.43 AU - 1.45 AU

Year: 1152 Days

Day: 8.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,920,108 km

• M1: 169,195 km (0.112 R)
• M2: 746,045 km (0.096 R)
• M3: 1,330,673 km (0.117 R)
• M4: 1,815,221 km (0.089 R)
• M5: 2,311,138 km (0.092 R)
• M6: 2,811,542 km (0.086 R)
• M7: 3,894,930 km (0.117 R)
• M8: 4,558,546 km (0.048 R)
• M9: 5,221,265 km (0.081 R)
• M10: 6,346,241 km (0.061 R)
• M11: 7,602,564 km (0.112 R)
• M12: 8,073,199 km (0.081 R)
• M13: 8,589,760 km (0.112 R)
• M14: 9,073,410 km (0.049 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 113.8

Radius: 12.9

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.23 AU - 2.03 AU

Year: 1388 Days

Day: 13.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,920,108 km

• M1: 160,668 km (0.118 R)
• M2: 576,251 km (0.077 R)
• M3: 1,493,286 km (0.09 R)
• M4: 1,953,000 km (0.109 R)
• M5: 2,912,371 km (0.069 R)
• M6: 3,423,547 km (0.056 R)
• M7: 4,429,443 km (0.108 R)
• M8: 5,448,205 km (0.08 R)
• M9: 6,980,536 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939.3

Radius: 12.7

Gravity: 5.82 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 2.58 AU - 3.2 AU

Year: 3276 Days

Day: 11 Hours

Environment

Temp: -202 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 55,920,108 km

• M1: 157,975 km (0.056 R)
• M2: 560,394 km (0.068 R)
• M3: 1,103,434 km (0.059 R)
• M4: 1,593,217 km (0.094 R)
• M5: 2,314,877 km (0.084 R)
• M6: 2,735,846 km (0.104 R)
• M7: 3,553,398 km (0.12 R)
• M8: 4,274,161 km (0.087 R)
• M9: 4,718,167 km (0.037 R)
• M10: 5,590,323 km (0.048 R)
• M11: 6,536,829 km (0.103 R)
• M12: 7,790,010 km (0.107 R)
• M13: 9,981,918 km (0.078 R)
• M14: 10,683,382 km (0.071 R)
• M15: 11,329,346 km (0.092 R)
• M16: 12,417,072 km (0.078 R)
• M17: 13,474,131 km (0.074 R)
• M18: 14,799,867 km (0.072 R)
• M19: 19,235,444 km (0.073 R)
• M20: 22,063,143 km (0.105 R)
• M21: 24,932,580 km (0.037 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 307.9

Radius: 14.8

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 3.17 AU - 4.83 AU

Year: 5335 Days

Day: 10.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,920,108 km

• M1: 184,454 km (0.114 R)
• M2: 891,155 km (0.072 R)
• M3: 1,368,821 km (0.107 R)
• M4: 1,897,051 km (0.111 R)
• M5: 2,801,669 km (0.085 R)
• M6: 3,289,208 km (0.088 R)
• M7: 3,813,250 km (0.115 R)
• M8: 4,370,651 km (0.091 R)
• M9: 5,597,653 km (0.096 R)
• M10: 6,177,195 km (0.077 R)
• M11: 6,796,680 km (0.083 R)
• M12: 7,955,465 km (0.088 R)
• M13: 9,055,758 km (0.113 R)
• M14: 10,174,600 km (0.081 R)
• M15: 13,063,634 km (0.058 R)
• M16: 14,696,495 km (0.111 R)
• M17: 15,642,701 km (0.082 R)
• M18: 16,797,597 km (0.027 R)
• M19: 18,484,762 km (0.119 R)
• M20: 19,338,666 km (0.075 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 778.1

Radius: 3.8

Gravity: 53.89 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 7.14 AU - 7.26 AU

Year: 12883 Days

Day: 17.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 82 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,920,108 km

• M1: 47,423 km (0.114 R)
• M2: 1,318,406 km (0.098 R)
• M3: 2,212,403 km (0.111 R)
• M4: 2,414,061 km (0.063 R)
• M5: 2,716,847 km (0.113 R)
• M6: 4,155,081 km (0.07 R)
• M7: 5,694,443 km (0.12 R)
• M8: 6,388,427 km (0.062 R)
• M9: 8,756,711 km (0.038 R)
• M10: 9,364,079 km (0.062 R)
• M11: 12,261,041 km (0.036 R)
• M12: 14,354,364 km (0.103 R)
• M13: 16,750,474 km (0.074 R)
• M14: 23,540,871 km (0.059 R)
• M15: 31,608,235 km (0.114 R)
• M16: 34,001,202 km (0.03 R)
• M17: 36,255,792 km (0.081 R)
• M18: 47,639,442 km (0.07 R)
• M19: 50,138,325 km (0.048 R)
• M20: 52,559,118 km (0.075 R)
• M21: 54,550,864 km (0.052 R)
• M22: 57,457,999 km (0.112 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 30.7

Radius: 4.7

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 7.04 AU - 9.12 AU

Year: 15316 Days

Day: 17.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,920,108 km

• M1: 76,594 km (0.061 R)
• M2: 252,820 km (0.104 R)
• M3: 522,545 km (0.113 R)
• M4: 825,930 km (0.072 R)
• M5: 1,192,145 km (0.112 R)
• M6: 1,356,254 km (0.041 R)
• M7: 2,862,106 km (0.111 R)
• M8: 3,751,466 km (0.109 R)
• M9: 6,085,193 km (0.103 R)
• M10: 7,216,152 km (0.049 R)
• M11: 7,503,380 km (0.115 R)
• M12: 7,931,530 km (0.089 R)
• M13: 8,410,542 km (0.086 R)
• M14: 9,501,858 km (0.098 R)
• M15: 16,894,686 km (0.057 R)
• M16: 17,686,358 km (0.099 R)
• M17: 21,491,529 km (0.028 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 303.1

Radius: 5.4

Gravity: 10.39 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 9.29 AU - 9.33 AU

Year: 18943 Days

Day: 24.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 55,920,108 km

• M1: 69,413 km (0.105 R)
• M2: 283,338 km (0.068 R)
• M3: 520,750 km (0.116 R)
• M4: 839,244 km (0.108 R)
• M5: 1,280,109 km (0.098 R)
• M6: 3,615,033 km (0.091 R)
• M7: 4,294,506 km (0.084 R)
• M8: 4,728,340 km (0.1 R)
• M9: 5,190,747 km (0.065 R)
• M10: 5,468,251 km (0.034 R)
• M11: 6,205,469 km (0.108 R)
• M12: 6,678,498 km (0.11 R)
• M13: 7,048,752 km (0.096 R)
• M14: 7,260,284 km (0.099 R)
• M15: 7,432,621 km (0.109 R)
• M16: 9,108,566 km (0.086 R)
• M17: 10,194,496 km (0.096 R)
• M18: 10,520,021 km (0.106 R)
• M19: 15,476,648 km (0.103 R)
• M20: 17,784,494 km (0.119 R)
• M21: 19,224,673 km (0.047 R)
• M22: 20,654,679 km (0.105 R)
• M23: 22,884,136 km (0.082 R)
• M24: 25,765,092 km (0.059 R)
• M25: 26,267,591 km (0.08 R)
• M26: 29,970,138 km (0.079 R)
• M27: 30,637,943 km (0.113 R)
• M28: 31,543,609 km (0.095 R)
• M29: 33,766,035 km (0.071 R)
• M30: 35,716,791 km (0.096 R)
• M31: 46,754,421 km (0.09 R)
• M32: 47,202,018 km (0.099 R)
• M33: 50,571,111 km (0.117 R)
• M34: 55,086,424 km (0.115 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 430 - 10,865 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit