🌌 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: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 176.1

Radius: 10.1

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.7 AU - 0.82 AU

Year: 435 Days

Day: 14.3 Hours

Environment

Temp: -148 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 14,678,372 km

• M1: 138,079 km (0.101 R)
• M2: 591,809 km (0.116 R)
• M3: 1,066,932 km (0.086 R)
• M4: 1,788,293 km (0.094 R)
• M5: 2,185,625 km (0.055 R)
• M6: 3,317,782 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.9

Radius: 11.9

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.59 AU - 0.95 AU

Year: 443 Days

Day: 8.8 Hours

Environment

Temp: -148 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 14,678,372 km

• M1: 147,952 km (0.108 R)
• M2: 583,432 km (0.112 R)
• M3: 1,086,081 km (0.116 R)
• M4: 2,013,438 km (0.053 R)
• M5: 2,515,937 km (0.092 R)
• M6: 3,133,477 km (0.055 R)
• M7: 4,630,652 km (0.063 R)
• M8: 5,156,938 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723.4

Radius: 12.9

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.91 AU - 0.93 AU

Year: 579 Days

Day: 12.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 14,678,372 km

• M1: 160,369 km (0.113 R)
• M2: 624,571 km (0.069 R)
• M3: 1,147,715 km (0.095 R)
• M4: 1,598,004 km (0.087 R)
• M5: 2,015,682 km (0.064 R)
• M6: 2,436,650 km (0.068 R)
• M7: 2,905,490 km (0.069 R)
• M8: 3,346,205 km (0.09 R)
• M9: 4,720,262 km (0.079 R)
• M10: 5,196,731 km (0.079 R)
• M11: 6,402,340 km (0.076 R)
• M12: 7,071,342 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 465.3

Radius: 10.8

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.06 AU - 1.12 AU

Year: 747 Days

Day: 7.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 14,678,372 km

• M1: 134,339 km (0.038 R)
• M2: 476,619 km (0.06 R)
• M3: 876,644 km (0.116 R)
• M4: 1,315,414 km (0.093 R)
• M5: 1,882,689 km (0.086 R)
• M6: 2,597,019 km (0.105 R)
• M7: 3,059,127 km (0.075 R)
• M8: 3,405,745 km (0.112 R)
• M9: 3,792,605 km (0.087 R)
• M10: 4,703,507 km (0.107 R)
• M11: 5,482,313 km (0.111 R)
• M12: 6,544,009 km (0.081 R)
• M13: 7,145,243 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 776.4

Radius: 13.7

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.88 AU - 1.34 AU

Year: 767 Days

Day: 11.4 Hours

Environment

Temp: -156 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 14,678,372 km

• M1: 170,392 km (0.082 R)
• M2: 656,136 km (0.111 R)
• M3: 1,089,521 km (0.054 R)
• M4: 1,827,188 km (0.117 R)
• M5: 2,405,085 km (0.116 R)
• M6: 3,419,957 km (0.113 R)
• M7: 4,164,954 km (0.079 R)
• M8: 4,652,195 km (0.106 R)
• M9: 5,214,084 km (0.103 R)
• M10: 7,760,539 km (0.039 R)
• M11: 8,502,545 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.3

Radius: 14

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.25 AU - 1.41 AU

Year: 1006 Days

Day: 9.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 14,678,372 km

• M1: 193,580 km (0.072 R)
• M2: 674,238 km (0.058 R)
• M3: 1,151,006 km (0.061 R)
• M4: 1,932,057 km (0.051 R)
• M5: 2,412,565 km (0.103 R)
• M6: 2,878,263 km (0.086 R)
• M7: 3,430,878 km (0.085 R)
• M8: 3,950,132 km (0.114 R)
• M9: 4,489,582 km (0.088 R)
• M10: 5,623,085 km (0.091 R)
• M11: 6,724,574 km (0.069 R)
• M12: 7,566,361 km (0.084 R)
• M13: 8,013,210 km (0.075 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.3

Radius: 8.3

Gravity: 11.97 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.43 AU - 2.11 AU

Year: 1545 Days

Day: 7.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 14,678,372 km

• M1: 103,522 km (0.082 R)
• M2: 571,913 km (0.092 R)
• M3: 1,229,994 km (0.051 R)
• M4: 1,735,335 km (0.119 R)
• M5: 2,176,350 km (0.082 R)
• M6: 3,096,676 km (0.104 R)
• M7: 3,427,736 km (0.077 R)
• M8: 3,996,058 km (0.072 R)
• M9: 4,370,203 km (0.065 R)
• M10: 4,787,880 km (0.039 R)
• M11: 5,210,344 km (0.106 R)
• M12: 6,203,076 km (0.087 R)
• M13: 6,551,938 km (0.103 R)
• M14: 7,100,065 km (0.057 R)
• M15: 7,791,805 km (0.098 R)
• M16: 10,482,472 km (0.115 R)
• M17: 11,086,698 km (0.075 R)
• M18: 11,902,605 km (0.117 R)
• M19: 12,639,075 km (0.083 R)
• M20: 14,032,280 km (0.096 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 389 - 13,660 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit