🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.7

Radius: 8.2

Gravity: 12.4 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.59 AU - 0.83 AU

Year: 399 Days

Day: 7.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 73,580,136 km

• M1: 102,026 km (0.061 R)
• M2: 364,720 km (0.074 R)
• M3: 776,114 km (0.098 R)
• M4: 1,166,863 km (0.067 R)
• M5: 1,468,154 km (0.116 R)
• M6: 1,737,280 km (0.082 R)
• M7: 2,257,881 km (0.107 R)
• M8: 2,690,368 km (0.103 R)
• M9: 2,953,960 km (0.056 R)
• M10: 3,211,717 km (0.056 R)
• M11: 3,521,235 km (0.054 R)
• M12: 3,929,637 km (0.066 R)
• M13: 4,557,050 km (0.114 R)
• M14: 5,153,497 km (0.119 R)
• M15: 5,646,721 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926.7

Radius: 10.3

Gravity: 8.74 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.71 AU - 0.79 AU

Year: 433 Days

Day: 6.2 Hours

Environment

Temp: -164 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 73,580,136 km

• M1: 128,056 km (0.079 R)
• M2: 606,470 km (0.038 R)
• M3: 1,019,061 km (0.092 R)
• M4: 1,411,456 km (0.085 R)
• M5: 1,746,256 km (0.033 R)
• M6: 2,206,569 km (0.076 R)
• M7: 2,715,201 km (0.076 R)
• M8: 4,120,524 km (0.079 R)
• M9: 4,832,310 km (0.116 R)
• M10: 5,554,868 km (0.112 R)
• M11: 6,198,289 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903

Radius: 14.2

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1.43 AU - 1.59 AU

Year: 1237 Days

Day: 8 Hours

Environment

Temp: -201 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,580,136 km

• M1: 176,675 km (0.096 R)
• M2: 669,301 km (0.062 R)
• M3: 1,137,243 km (0.103 R)
• M4: 1,728,603 km (0.083 R)
• M5: 2,215,096 km (0.084 R)
• M6: 2,807,204 km (0.101 R)
• M7: 3,395,722 km (0.104 R)
• M8: 4,206,692 km (0.064 R)
• M9: 4,668,501 km (0.115 R)
• M10: 5,164,268 km (0.071 R)
• M11: 5,827,884 km (0.114 R)
• M12: 6,380,499 km (0.072 R)
• M13: 7,300,825 km (0.102 R)
• M14: 8,223,096 km (0.081 R)
• M15: 8,919,923 km (0.063 R)
• M16: 10,365,786 km (0.1 R)
• M17: 12,934,980 km (0.056 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.4

Radius: 13.7

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 2.58 AU - 2.66 AU

Year: 2828 Days

Day: 8.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 73,580,136 km

• M1: 175,927 km (0.054 R)
• M2: 641,027 km (0.112 R)
• M3: 1,348,176 km (0.049 R)
• M4: 1,937,143 km (0.063 R)
• M5: 2,943,039 km (0.071 R)
• M6: 3,485,331 km (0.042 R)
• M7: 5,123,577 km (0.118 R)
• M8: 5,581,048 km (0.107 R)
• M9: 6,457,990 km (0.089 R)
• M10: 6,972,009 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.3

Radius: 11.9

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 4.27 AU - 4.87 AU

Year: 6515 Days

Day: 9.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 73,580,136 km

• M1: 157,975 km (0.079 R)
• M2: 803,341 km (0.08 R)
• M3: 1,191,697 km (0.114 R)
• M4: 1,848,431 km (0.119 R)
• M5: 3,037,884 km (0.067 R)
• M6: 5,445,811 km (0.078 R)
• M7: 6,351,477 km (0.035 R)
• M8: 7,219,593 km (0.036 R)
• M9: 7,630,090 km (0.114 R)
• M10: 8,423,407 km (0.118 R)
• M11: 10,005,854 km (0.084 R)
• M12: 11,045,708 km (0.092 R)
• M13: 11,731,315 km (0.108 R)
• M14: 13,137,386 km (0.082 R)
• M15: 13,699,126 km (0.075 R)
• M16: 16,870,601 km (0.06 R)
• M17: 19,238,286 km (0.077 R)
• M18: 27,247,158 km (0.093 R)
• M19: 27,993,651 km (0.08 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 84.4

Radius: 3.4

Gravity: 7.3 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 5.38 AU - 6.7 AU

Year: 9899 Days

Day: 17.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 73,580,136 km

• M1: 44,131 km (0.072 R)
• M2: 150,495 km (0.099 R)
• M3: 453,132 km (0.067 R)
• M4: 700,118 km (0.112 R)
• M5: 899,831 km (0.103 R)
• M6: 1,434,344 km (0.045 R)
• M7: 1,832,125 km (0.109 R)
• M8: 2,435,304 km (0.083 R)
• M9: 2,624,994 km (0.034 R)
• M10: 4,307,521 km (0.057 R)
• M11: 4,704,255 km (0.112 R)
• M12: 6,212,500 km (0.116 R)
• M13: 7,844,763 km (0.107 R)
• M14: 8,399,472 km (0.045 R)
• M15: 8,613,995 km (0.098 R)
• M16: 10,671,115 km (0.032 R)
• M17: 11,790,556 km (0.076 R)
• M18: 11,969,475 km (0.109 R)
• M19: 13,128,859 km (0.106 R)
• M20: 13,564,039 km (0.101 R)
• M21: 18,880,448 km (0.105 R)
• M22: 19,809,750 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 690.5

Radius: 3.9

Gravity: 45.4 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 7.81 AU - 10.81 AU

Year: 18943 Days

Day: 23.6 Hours

Environment

Temp: -238 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 73,580,136 km

• M1: 48,470 km (0.106 R)
• M2: 192,084 km (0.117 R)
• M3: 2,073,875 km (0.117 R)
• M4: 3,713,019 km (0.109 R)
• M5: 7,489,468 km (0.118 R)
• M6: 12,349,155 km (0.087 R)
• M7: 21,478,065 km (0.044 R)
• M8: 21,672,692 km (0.114 R)
• M9: 26,477,626 km (0.055 R)
• M10: 26,701,275 km (0.106 R)
• M11: 29,724,648 km (0.075 R)
• M12: 31,318,464 km (0.103 R)
• M13: 36,302,466 km (0.101 R)
• M14: 38,264,293 km (0.061 R)
• M15: 42,245,092 km (0.045 R)
• M16: 44,413,962 km (0.095 R)
• M17: 47,474,435 km (0.058 R)
• M18: 49,308,954 km (0.113 R)
• M19: 55,642,629 km (0.088 R)
• M20: 55,826,036 km (0.088 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 181 - 17,454 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit