🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 408.6

Radius: 9.5

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.55 AU - 0.81 AU

Year: 380 Days

Day: 6.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 31,594,659 km

• M1: 118,781 km (0.073 R)
• M2: 481,556 km (0.074 R)
• M3: 783,594 km (0.057 R)
• M4: 1,224,309 km (0.083 R)
• M5: 2,038,720 km (0.081 R)
• M6: 3,005,122 km (0.108 R)
• M7: 3,369,393 km (0.115 R)
• M8: 3,728,278 km (0.058 R)
• M9: 4,483,747 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321.5

Radius: 12.6

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.92 AU - 1 AU

Year: 638 Days

Day: 15 Hours

Environment

Temp: -183 °C

Axial Tilt: 98.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 31,594,659 km

• M1: 156,779 km (0.094 R)
• M2: 809,175 km (0.054 R)
• M3: 1,292,376 km (0.077 R)
• M4: 1,769,144 km (0.088 R)
• M5: 2,629,033 km (0.057 R)
• M6: 3,431,925 km (0.054 R)
• M7: 4,225,242 km (0.083 R)
• M8: 4,920,424 km (0.052 R)
• M9: 5,376,697 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 105.5

Radius: 12.1

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.14 AU - 1.7 AU

Year: 1148 Days

Day: 10.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 31,594,659 km

• M1: 150,795 km (0.101 R)
• M2: 531,970 km (0.097 R)
• M3: 1,263,803 km (0.082 R)
• M4: 2,241,574 km (0.069 R)
• M5: 2,626,939 km (0.109 R)
• M6: 3,237,298 km (0.101 R)
• M7: 4,252,170 km (0.104 R)
• M8: 5,584,638 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 295.8

Radius: 14.6

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.56 AU - 2.04 AU

Year: 1638 Days

Day: 12.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 31,594,659 km

• M1: 181,612 km (0.089 R)
• M2: 799,750 km (0.116 R)
• M3: 1,339,051 km (0.115 R)
• M4: 2,427,973 km (0.095 R)
• M5: 3,137,367 km (0.104 R)
• M6: 3,982,445 km (0.101 R)
• M7: 8,649,300 km (0.107 R)
• M8: 9,499,315 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 726.1

Radius: 11.8

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 2.34 AU - 2.62 AU

Year: 2649 Days

Day: 12.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 31,594,659 km

• M1: 146,756 km (0.102 R)
• M2: 567,425 km (0.081 R)
• M3: 1,152,203 km (0.107 R)
• M4: 2,250,999 km (0.072 R)
• M5: 3,009,460 km (0.12 R)
• M6: 3,736,955 km (0.069 R)
• M7: 5,541,554 km (0.108 R)
• M8: 6,246,609 km (0.039 R)
• M9: 6,663,688 km (0.063 R)
• M10: 7,741,091 km (0.093 R)
• M11: 8,124,960 km (0.074 R)
• M12: 8,622,821 km (0.113 R)
• M13: 10,860,506 km (0.095 R)
• M14: 11,965,137 km (0.042 R)
• M15: 12,654,334 km (0.1 R)
• M16: 13,278,905 km (0.094 R)
• M17: 14,159,139 km (0.041 R)
• M18: 16,347,008 km (0.075 R)
• M19: 17,851,514 km (0.107 R)
• M20: 19,918,807 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187

Radius: 8.8

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 4.13 AU - 6.05 AU

Year: 7789 Days

Day: 7.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 31,594,659 km

• M1: 113,096 km (0.039 R)
• M2: 504,444 km (0.098 R)
• M3: 1,342,641 km (0.117 R)
• M4: 2,135,958 km (0.113 R)
• M5: 3,346,953 km (0.095 R)
• M6: 4,145,955 km (0.047 R)
• M7: 4,862,380 km (0.083 R)
• M8: 5,411,404 km (0.042 R)
• M9: 7,374,876 km (0.083 R)
• M10: 9,975,186 km (0.109 R)
• M11: 11,616,424 km (0.106 R)
• M12: 12,076,587 km (0.118 R)
• M13: 13,885,974 km (0.034 R)
• M14: 15,370,284 km (0.072 R)
• M15: 16,724,444 km (0.103 R)
• M16: 17,252,075 km (0.111 R)
• M17: 22,160,830 km (0.108 R)
• M18: 22,869,026 km (0.093 R)
• M19: 26,087,475 km (0.078 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 173

Radius: 3.9

Gravity: 11.37 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 5.2 AU - 7.34 AU

Year: 10649 Days

Day: 18.7 Hours

Environment

Temp: -236 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 31,594,659 km

• M1: 48,619 km (0.109 R)
• M2: 379,829 km (0.084 R)
• M3: 908,807 km (0.052 R)
• M4: 1,182,122 km (0.12 R)
• M5: 2,270,746 km (0.07 R)
• M6: 2,681,093 km (0.104 R)
• M7: 4,382,619 km (0.094 R)
• M8: 5,798,862 km (0.097 R)
• M9: 5,952,350 km (0.045 R)
• M10: 10,188,064 km (0.114 R)
• M11: 11,482,983 km (0.076 R)
• M12: 12,270,167 km (0.038 R)
• M13: 13,303,888 km (0.052 R)
• M14: 13,463,808 km (0.098 R)
• M15: 21,693,187 km (0.068 R)
• M16: 25,341,131 km (0.107 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 296 - 14,434 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit