🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 779.2

Radius: 12.4

Gravity: 5.07 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.45 AU - 0.63 AU

Year: 279 Days

Day: 12.6 Hours

Environment

Temp: -137 °C

Axial Tilt: 93.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 52,659,665 km

• M1: 154,235 km (0.045 R)
• M2: 551,418 km (0.091 R)
• M3: 1,017,565 km (0.059 R)
• M4: 1,821,354 km (0.063 R)
• M5: 2,562,013 km (0.113 R)
• M6: 3,353,685 km (0.118 R)
• M7: 4,379,029 km (0.064 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.1

Radius: 10.9

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.81 AU - 1.13 AU

Year: 672 Days

Day: 10.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 52,659,665 km

• M1: 135,536 km (0.046 R)
• M2: 848,370 km (0.073 R)
• M3: 1,273,527 km (0.036 R)
• M4: 1,770,341 km (0.097 R)
• M5: 2,171,114 km (0.116 R)
• M6: 2,684,384 km (0.077 R)
• M7: 3,032,349 km (0.058 R)
• M8: 3,599,026 km (0.114 R)
• M9: 3,942,053 km (0.103 R)
• M10: 4,438,569 km (0.07 R)
• M11: 5,336,605 km (0.118 R)
• M12: 5,784,650 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 358.7

Radius: 9.1

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.13 AU - 1.17 AU

Year: 867 Days

Day: 8.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 52,659,665 km

• M1: 113,246 km (0.072 R)
• M2: 408,701 km (0.061 R)
• M3: 701,764 km (0.096 R)
• M4: 1,155,195 km (0.061 R)
• M5: 1,644,081 km (0.097 R)
• M6: 1,941,780 km (0.104 R)
• M7: 2,315,177 km (0.038 R)
• M8: 3,944,148 km (0.119 R)
• M9: 4,344,771 km (0.034 R)
• M10: 5,227,847 km (0.066 R)
• M11: 5,601,842 km (0.094 R)
• M12: 6,186,770 km (0.081 R)
• M13: 6,504,366 km (0.042 R)
• M14: 7,500,538 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.3

Radius: 9.1

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.74 AU - 2.18 AU

Year: 1929 Days

Day: 6.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,659,665 km

• M1: 115,789 km (0.089 R)
• M2: 1,263,354 km (0.118 R)
• M3: 1,922,781 km (0.09 R)
• M4: 2,211,954 km (0.082 R)
• M5: 2,609,286 km (0.05 R)
• M6: 3,478,300 km (0.094 R)
• M7: 5,758,022 km (0.082 R)
• M8: 6,685,678 km (0.099 R)
• M9: 7,016,140 km (0.116 R)
• M10: 8,473,822 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.9

Radius: 8.4

Gravity: 13.56 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.53 AU - 2.49 AU

Year: 2003 Days

Day: 8.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 52,659,665 km

• M1: 104,569 km (0.114 R)
• M2: 540,198 km (0.099 R)
• M3: 906,713 km (0.096 R)
• M4: 1,211,593 km (0.054 R)
• M5: 2,303,358 km (0.119 R)
• M6: 2,698,746 km (0.037 R)
• M7: 3,307,609 km (0.099 R)
• M8: 4,004,885 km (0.079 R)
• M9: 4,818,996 km (0.097 R)
• M10: 5,890,267 km (0.106 R)
• M11: 7,495,601 km (0.1 R)
• M12: 8,048,066 km (0.061 R)
• M13: 9,797,763 km (0.094 R)
• M14: 10,346,189 km (0.04 R)
• M15: 11,266,365 km (0.117 R)
• M16: 12,704,450 km (0.093 R)
• M17: 14,261,165 km (0.112 R)
• M18: 14,870,477 km (0.09 R)
• M19: 15,496,993 km (0.097 R)
• M20: 16,699,760 km (0.065 R)
• M21: 18,343,990 km (0.067 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.5

Radius: 13.4

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.98 AU - 2.32 AU

Year: 2216 Days

Day: 14.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 58.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 52,659,665 km

• M1: 166,802 km (0.06 R)
• M2: 615,296 km (0.12 R)
• M3: 1,293,423 km (0.07 R)
• M4: 1,889,870 km (0.101 R)
• M5: 2,567,548 km (0.097 R)
• M6: 3,170,278 km (0.089 R)
• M7: 4,017,301 km (0.119 R)
• M8: 5,054,912 km (0.104 R)
• M9: 5,517,319 km (0.115 R)
• M10: 7,627,846 km (0.097 R)
• M11: 9,316,806 km (0.059 R)
• M12: 10,158,743 km (0.11 R)
• M13: 12,403,309 km (0.027 R)
• M14: 15,149,477 km (0.115 R)
• M15: 16,363,763 km (0.1 R)
• M16: 17,020,348 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981.6

Radius: 12.4

Gravity: 6.38 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.55 AU - 3.73 AU

Year: 3911 Days

Day: 5.1 Hours

Environment

Temp: -204 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 52,659,665 km

• M1: 155,582 km (0.082 R)
• M2: 701,315 km (0.105 R)
• M3: 1,215,782 km (0.036 R)
• M4: 1,731,595 km (0.101 R)
• M5: 2,376,661 km (0.093 R)
• M6: 2,808,850 km (0.099 R)
• M7: 3,747,576 km (0.097 R)
• M8: 4,807,776 km (0.091 R)
• M9: 6,058,265 km (0.1 R)
• M10: 6,583,503 km (0.079 R)
• M11: 8,158,619 km (0.087 R)
• M12: 9,972,194 km (0.039 R)
• M13: 10,706,121 km (0.093 R)
• M14: 11,945,390 km (0.114 R)
• M15: 13,639,436 km (0.084 R)
• M16: 16,004,429 km (0.097 R)
• M17: 18,375,256 km (0.1 R)
• M18: 19,346,595 km (0.075 R)
• M19: 20,971,378 km (0.069 R)
• M20: 27,710,762 km (0.105 R)

Asteroid Belt

Center: 4.92 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 6.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 611.2

Radius: 6.6

Gravity: 14.03 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 6.69 AU - 6.71 AU

Year: 12190 Days

Day: 15.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 52,659,665 km

• M1: 82,279 km (0.06 R)
• M2: 425,905 km (0.11 R)
• M3: 1,338,003 km (0.116 R)
• M4: 2,921,796 km (0.096 R)
• M5: 3,177,010 km (0.032 R)
• M6: 3,447,034 km (0.071 R)
• M7: 4,841,286 km (0.106 R)
• M8: 6,230,003 km (0.036 R)
• M9: 6,497,784 km (0.074 R)
• M10: 7,305,612 km (0.105 R)
• M11: 14,454,595 km (0.038 R)
• M12: 18,116,153 km (0.051 R)
• M13: 18,662,634 km (0.036 R)
• M14: 21,301,540 km (0.081 R)
• M15: 21,560,943 km (0.084 R)
• M16: 23,713,357 km (0.099 R)
• M17: 24,179,055 km (0.098 R)
• M18: 29,820,391 km (0.064 R)
• M19: 35,184,372 km (0.1 R)
• M20: 43,891,716 km (0.101 R)
• M21: 45,303,322 km (0.026 R)
• M22: 46,744,847 km (0.089 R)
• M23: 48,814,084 km (0.057 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 422 - 13,975 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit