🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950.3

Radius: 14.7

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.59 AU - 0.79 AU

Year: 364 Days

Day: 11 Hours

Environment

Temp: -138 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,342,692 km

• M1: 183,257 km (0.095 R)
• M2: 677,828 km (0.049 R)
• M3: 1,140,385 km (0.113 R)
• M4: 1,675,347 km (0.084 R)
• M5: 2,281,368 km (0.103 R)
• M6: 2,915,962 km (0.031 R)
• M7: 3,379,715 km (0.069 R)
• M8: 4,630,652 km (0.101 R)
• M9: 5,141,679 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.5

Radius: 14

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.6 AU - 0.94 AU

Year: 430 Days

Day: 6.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 42,342,692 km

• M1: 174,132 km (0.046 R)
• M2: 612,005 km (0.055 R)
• M3: 1,176,288 km (0.099 R)
• M4: 1,614,460 km (0.106 R)
• M5: 2,049,790 km (0.067 R)
• M6: 2,849,989 km (0.083 R)
• M7: 4,716,222 km (0.109 R)
• M8: 5,400,334 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 80.9

Radius: 8.2

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.95 AU - 0.99 AU

Year: 607 Days

Day: 10.5 Hours

Environment

Temp: -151 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 42,342,692 km

• M1: 102,026 km (0.105 R)
• M2: 538,253 km (0.051 R)
• M3: 903,721 km (0.101 R)
• M4: 1,598,004 km (0.091 R)
• M5: 2,617,215 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.7

Radius: 12.5

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 2.34 AU - 3.56 AU

Year: 3222 Days

Day: 8.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 42,342,692 km

• M1: 155,582 km (0.05 R)
• M2: 1,170,603 km (0.108 R)
• M3: 1,771,239 km (0.089 R)
• M4: 2,470,160 km (0.085 R)
• M5: 3,399,612 km (0.053 R)
• M6: 4,726,694 km (0.107 R)
• M7: 6,129,174 km (0.061 R)
• M8: 7,029,454 km (0.079 R)
• M9: 8,210,829 km (0.03 R)
• M10: 9,665,818 km (0.085 R)
• M11: 11,084,454 km (0.068 R)
• M12: 12,637,579 km (0.079 R)
• M13: 13,489,240 km (0.063 R)
• M14: 15,914,072 km (0.083 R)
• M15: 18,108,673 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.8

Radius: 12

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 4.52 AU - 5.26 AU

Year: 6875 Days

Day: 10.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,342,692 km

• M1: 149,299 km (0.051 R)
• M2: 638,035 km (0.048 R)
• M3: 2,549,597 km (0.085 R)
• M4: 3,526,770 km (0.037 R)
• M5: 5,117,594 km (0.111 R)
• M6: 6,294,181 km (0.059 R)
• M7: 10,986,916 km (0.103 R)
• M8: 13,348,768 km (0.116 R)
• M9: 14,549,440 km (0.09 R)
• M10: 15,252,700 km (0.079 R)
• M11: 15,873,232 km (0.071 R)
• M12: 18,467,558 km (0.109 R)
• M13: 20,018,140 km (0.088 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 790.4

Radius: 6.3

Gravity: 19.91 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 5.51 AU - 8.07 AU

Year: 11250 Days

Day: 22.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 42,342,692 km

• M1: 79,436 km (0.112 R)
• M2: 284,535 km (0.054 R)
• M3: 2,101,700 km (0.103 R)
• M4: 2,762,624 km (0.046 R)
• M5: 3,632,535 km (0.08 R)
• M6: 4,735,670 km (0.091 R)
• M7: 4,993,727 km (0.07 R)
• M8: 6,083,697 km (0.075 R)
• M9: 8,347,112 km (0.109 R)
• M10: 9,162,271 km (0.116 R)
• M11: 11,866,402 km (0.051 R)
• M12: 12,648,051 km (0.104 R)
• M13: 17,152,742 km (0.063 R)
• M14: 18,544,900 km (0.095 R)
• M15: 24,676,468 km (0.095 R)
• M16: 34,377,291 km (0.036 R)
• M17: 41,404,951 km (0.095 R)
• M18: 42,777,810 km (0.092 R)
• M19: 44,180,889 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 100.9

Radius: 7.3

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 8.34 AU - 12.66 AU

Year: 21633 Days

Day: 15.4 Hours

Environment

Temp: -239 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 42,342,692 km

• M1: 236,215 km (0.047 R)
• M2: 3,266,021 km (0.112 R)
• M3: 3,592,742 km (0.096 R)
• M4: 5,404,073 km (0.071 R)
• M5: 7,874,383 km (0.113 R)
• M6: 8,123,314 km (0.115 R)
• M7: 8,901,522 km (0.079 R)
• M8: 12,798,547 km (0.084 R)
• M9: 14,397,598 km (0.063 R)
• M10: 14,833,078 km (0.118 R)
• M11: 17,351,408 km (0.102 R)
• M12: 25,947,302 km (0.119 R)
• M13: 27,531,843 km (0.067 R)
• M14: 31,098,256 km (0.076 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 201 - 14,021 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit