🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.72

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.51 AU - 0.67 AU

Year: 297 Days

Day: 32.8 Hours

Environment

Temp: -123 °C

Axial Tilt: 14.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.01

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.5 AU - 0.72 AU

Year: 313 Days

Day: 14.8 Hours

Environment

Temp: -120 °C

Axial Tilt: 0.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 193.6

Radius: 10.8

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.71 AU - 1.09 AU

Year: 560 Days

Day: 9.8 Hours

Environment

Temp: -163 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 38,777,749 km

• M1: 135,087 km (0.109 R)
• M2: 507,436 km (0.084 R)
• M3: 1,119,441 km (0.096 R)
• M4: 1,497,026 km (0.119 R)
• M5: 1,844,991 km (0.102 R)
• M6: 2,191,160 km (0.069 R)
• M7: 2,653,717 km (0.1 R)
• M8: 3,382,557 km (0.085 R)
• M9: 4,239,753 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 826

Radius: 8.5

Gravity: 11.43 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.01 AU - 1.37 AU

Year: 852 Days

Day: 8.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 38,777,749 km

• M1: 105,766 km (0.06 R)
• M2: 380,128 km (0.073 R)
• M3: 645,964 km (0.104 R)
• M4: 1,312,273 km (0.078 R)
• M5: 1,784,852 km (0.035 R)
• M6: 2,163,634 km (0.031 R)
• M7: 2,788,654 km (0.082 R)
• M8: 3,301,176 km (0.116 R)
• M9: 3,602,317 km (0.096 R)
• M10: 4,343,724 km (0.085 R)
• M11: 6,042,108 km (0.086 R)
• M12: 6,650,523 km (0.073 R)
• M13: 7,837,881 km (0.026 R)
• M14: 8,117,031 km (0.095 R)
• M15: 8,455,421 km (0.106 R)
• M16: 8,722,154 km (0.099 R)
• M17: 9,613,907 km (0.042 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.3

Radius: 11.5

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 3.05 AU - 4.03 AU

Year: 4369 Days

Day: 14.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 38,777,749 km

• M1: 143,165 km (0.076 R)
• M2: 871,856 km (0.055 R)
• M3: 1,435,392 km (0.098 R)
• M4: 2,233,197 km (0.097 R)
• M5: 2,637,111 km (0.111 R)
• M6: 3,407,092 km (0.093 R)
• M7: 4,927,903 km (0.108 R)
• M8: 6,095,814 km (0.066 R)
• M9: 6,827,198 km (0.088 R)
• M10: 7,723,439 km (0.052 R)
• M11: 9,540,305 km (0.067 R)
• M12: 10,046,694 km (0.05 R)
• M13: 11,159,253 km (0.098 R)
• M14: 20,164,746 km (0.059 R)
• M15: 22,003,154 km (0.103 R)
• M16: 22,590,625 km (0.104 R)
• M17: 24,105,154 km (0.059 R)
• M18: 27,251,496 km (0.058 R)
• M19: 27,843,754 km (0.079 R)
• M20: 29,761,599 km (0.055 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 172.9

Radius: 5.1

Gravity: 6.65 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 7.22 AU - 8.52 AU

Year: 14483 Days

Day: 21.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 38,777,749 km

• M1: 63,429 km (0.059 R)
• M2: 373,097 km (0.099 R)
• M3: 668,403 km (0.084 R)
• M4: 950,246 km (0.114 R)
• M5: 2,972,809 km (0.091 R)
• M6: 3,406,493 km (0.087 R)
• M7: 3,638,519 km (0.102 R)
• M8: 4,108,556 km (0.074 R)
• M9: 4,646,061 km (0.1 R)
• M10: 9,024,791 km (0.104 R)
• M11: 10,403,634 km (0.105 R)
• M12: 17,463,756 km (0.084 R)
• M13: 19,589,243 km (0.084 R)
• M14: 24,687,837 km (0.059 R)
• M15: 27,818,322 km (0.099 R)
• M16: 29,237,408 km (0.073 R)
• M17: 33,361,073 km (0.079 R)
• M18: 35,178,837 km (0.052 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: 413 - 16,398 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit