🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.3

Radius: 8.3

Gravity: 7.16 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.73 AU - 0.77 AU

Year: 433 Days

Day: 13 Hours

Environment

Temp: -156 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 38,264,552 km

• M1: 103,223 km (0.044 R)
• M2: 499,208 km (0.106 R)
• M3: 780,302 km (0.086 R)
• M4: 1,055,263 km (0.049 R)
• M5: 1,335,460 km (0.113 R)
• M6: 2,034,381 km (0.056 R)
• M7: 2,915,812 km (0.105 R)
• M8: 3,704,642 km (0.109 R)
• M9: 4,109,603 km (0.117 R)
• M10: 4,460,111 km (0.111 R)
• M11: 4,816,004 km (0.088 R)
• M12: 5,098,894 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 516.8

Radius: 8.8

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.68 AU - 1.04 AU

Year: 532 Days

Day: 6.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 38,264,552 km

• M1: 109,655 km (0.108 R)
• M2: 636,389 km (0.045 R)
• M3: 966,701 km (0.051 R)
• M4: 1,267,842 km (0.097 R)
• M5: 1,646,923 km (0.115 R)
• M6: 2,306,650 km (0.057 R)
• M7: 2,780,875 km (0.083 R)
• M8: 3,098,022 km (0.119 R)
• M9: 3,689,383 km (0.104 R)
• M10: 4,198,165 km (0.087 R)
• M11: 4,602,378 km (0.073 R)
• M12: 5,556,663 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.2

Radius: 12.9

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.81 AU - 1.21 AU

Year: 677 Days

Day: 12.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 38,264,552 km

• M1: 160,369 km (0.061 R)
• M2: 980,016 km (0.103 R)
• M3: 1,482,814 km (0.047 R)
• M4: 1,990,250 km (0.111 R)
• M5: 2,967,124 km (0.086 R)
• M6: 3,442,995 km (0.042 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.7

Radius: 13

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.63 AU - 2.15 AU

Year: 1733 Days

Day: 8.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 38,264,552 km

• M1: 162,014 km (0.042 R)
• M2: 883,076 km (0.04 R)
• M3: 1,532,929 km (0.109 R)
• M4: 2,019,721 km (0.048 R)
• M5: 2,541,967 km (0.09 R)
• M6: 3,122,556 km (0.09 R)
• M7: 3,529,463 km (0.089 R)
• M8: 3,935,322 km (0.073 R)
• M9: 4,451,883 km (0.07 R)
• M10: 5,035,315 km (0.044 R)
• M11: 7,489,318 km (0.097 R)
• M12: 8,256,007 km (0.061 R)
• M13: 9,106,770 km (0.119 R)
• M14: 9,536,864 km (0.102 R)
• M15: 10,154,853 km (0.079 R)
• M16: 11,395,019 km (0.088 R)
• M17: 13,105,222 km (0.061 R)
• M18: 14,529,244 km (0.099 R)
• M19: 16,054,245 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904.2

Radius: 14.2

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.92 AU - 2.62 AU

Year: 2281 Days

Day: 11.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 38,264,552 km

• M1: 176,525 km (0.083 R)
• M2: 686,205 km (0.108 R)
• M3: 1,576,911 km (0.114 R)
• M4: 2,094,669 km (0.082 R)
• M5: 2,681,691 km (0.11 R)
• M6: 3,377,621 km (0.105 R)
• M7: 4,050,811 km (0.032 R)
• M8: 5,592,716 km (0.085 R)
• M9: 6,678,199 km (0.114 R)
• M10: 7,138,362 km (0.113 R)
• M11: 8,448,390 km (0.11 R)
• M12: 9,230,787 km (0.111 R)
• M13: 10,023,955 km (0.094 R)
• M14: 10,513,738 km (0.106 R)
• M15: 12,591,802 km (0.075 R)
• M16: 13,659,183 km (0.071 R)
• M17: 14,882,744 km (0.119 R)
• M18: 16,025,074 km (0.027 R)
• M19: 17,601,685 km (0.084 R)
• M20: 18,427,915 km (0.081 R)
• M21: 19,107,238 km (0.054 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.9

Radius: 11.1

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 2.48 AU - 2.5 AU

Year: 2620 Days

Day: 13.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 38,264,552 km

• M1: 138,528 km (0.116 R)
• M2: 585,376 km (0.079 R)
• M3: 1,177,335 km (0.036 R)
• M4: 1,693,298 km (0.061 R)
• M5: 2,110,976 km (0.105 R)
• M6: 2,647,434 km (0.055 R)
• M7: 3,058,977 km (0.107 R)
• M8: 4,097,186 km (0.103 R)
• M9: 5,233,831 km (0.038 R)
• M10: 6,176,447 km (0.052 R)
• M11: 7,718,203 km (0.077 R)
• M12: 9,172,743 km (0.083 R)
• M13: 10,410,067 km (0.109 R)
• M14: 11,204,133 km (0.058 R)
• M15: 11,755,700 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 53.3

Radius: 14

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.96 AU - 3.22 AU

Year: 2780 Days

Day: 5.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 38,264,552 km

• M1: 174,132 km (0.066 R)
• M2: 635,492 km (0.103 R)
• M3: 1,101,190 km (0.102 R)
• M4: 2,663,440 km (0.08 R)
• M5: 3,565,665 km (0.099 R)
• M6: 4,274,460 km (0.088 R)
• M7: 4,952,886 km (0.109 R)
• M8: 5,419,632 km (0.091 R)
• M9: 7,088,994 km (0.089 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371.6

Radius: 8.2

Gravity: 5.53 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 3.32 AU - 4.12 AU

Year: 4785 Days

Day: 13 Hours

Environment

Temp: -213 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 38,264,552 km

• M1: 102,325 km (0.118 R)
• M2: 423,063 km (0.071 R)
• M3: 738,565 km (0.116 R)
• M4: 997,219 km (0.089 R)
• M5: 1,525,449 km (0.097 R)
• M6: 1,878,800 km (0.115 R)
• M7: 2,228,709 km (0.07 R)
• M8: 2,527,157 km (0.109 R)
• M9: 2,955,306 km (0.097 R)
• M10: 4,748,087 km (0.1 R)
• M11: 5,322,991 km (0.09 R)
• M12: 5,999,623 km (0.088 R)
• M13: 6,855,023 km (0.094 R)
• M14: 7,392,828 km (0.097 R)
• M15: 8,130,345 km (0.042 R)
• M16: 10,804,557 km (0.086 R)
• M17: 11,976,656 km (0.115 R)
• M18: 12,803,783 km (0.108 R)
• M19: 13,570,472 km (0.118 R)
• M20: 13,865,778 km (0.081 R)
• M21: 17,288,128 km (0.098 R)
• M22: 18,284,001 km (0.099 R)
• M23: 19,317,423 km (0.112 R)
• M24: 19,943,341 km (0.064 R)
• M25: 20,972,724 km (0.082 R)
• M26: 21,700,667 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 375.8

Radius: 7

Gravity: 7.67 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 4.71 AU - 7.15 AU

Year: 9630 Days

Day: 15.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 38,264,552 km

• M1: 87,216 km (0.092 R)
• M2: 321,037 km (0.029 R)
• M3: 641,625 km (0.083 R)
• M4: 980,165 km (0.083 R)
• M5: 1,752,090 km (0.113 R)
• M6: 2,642,048 km (0.068 R)
• M7: 4,256,658 km (0.103 R)
• M8: 5,867,827 km (0.111 R)
• M9: 6,899,903 km (0.114 R)
• M10: 10,379,250 km (0.093 R)
• M11: 21,837,699 km (0.083 R)
• M12: 27,918,403 km (0.08 R)
• M13: 31,093,469 km (0.064 R)
• M14: 34,394,645 km (0.12 R)
• M15: 36,906,543 km (0.11 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 195 - 19,513 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit