🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.73

Radius: 1.49

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.55 AU - 0.61 AU

Year: 285 Days

Day: 16.5 Hours

Environment

Temp: -132 °C

Axial Tilt: 3.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 54,382,606 km

• M1: 53,257 km (0.096 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.38

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.54 AU - 0.74 AU

Year: 331 Days

Day: 45.9 Hours

Environment

Temp: -128 °C

Axial Tilt: 31.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 346

Radius: 12.8

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.98 AU - 1.26 AU

Year: 765 Days

Day: 12.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,382,606 km

• M1: 159,172 km (0.107 R)
• M2: 708,645 km (0.104 R)
• M3: 1,235,379 km (0.115 R)
• M4: 2,927,481 km (0.068 R)
• M5: 3,349,048 km (0.042 R)
• M6: 4,086,565 km (0.077 R)
• M7: 5,207,951 km (0.086 R)
• M8: 5,867,976 km (0.099 R)
• M9: 6,447,070 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933.8

Radius: 12

Gravity: 6.48 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 3.41 AU - 4.75 AU

Year: 5321 Days

Day: 14.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 54,382,606 km

• M1: 149,299 km (0.043 R)
• M2: 550,371 km (0.108 R)
• M3: 1,023,399 km (0.092 R)
• M4: 2,132,368 km (0.109 R)
• M5: 2,779,379 km (0.11 R)
• M6: 3,575,988 km (0.09 R)
• M7: 5,063,738 km (0.105 R)
• M8: 5,962,522 km (0.072 R)
• M9: 6,383,790 km (0.12 R)
• M10: 8,838,541 km (0.096 R)
• M11: 10,647,778 km (0.088 R)
• M12: 14,402,984 km (0.084 R)
• M13: 17,742,158 km (0.034 R)
• M14: 18,480,723 km (0.116 R)
• M15: 20,307,911 km (0.06 R)
• M16: 23,509,455 km (0.1 R)
• M17: 28,372,583 km (0.104 R)
• M18: 30,607,126 km (0.07 R)
• M19: 33,867,761 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615

Radius: 9.7

Gravity: 6.54 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 4.32 AU - 5.1 AU

Year: 6600 Days

Day: 5.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 54,382,606 km

• M1: 120,875 km (0.119 R)
• M2: 585,676 km (0.116 R)
• M3: 1,243,906 km (0.107 R)
• M4: 2,161,091 km (0.096 R)
• M5: 2,528,204 km (0.114 R)
• M6: 2,936,905 km (0.038 R)
• M7: 3,701,351 km (0.057 R)
• M8: 4,180,213 km (0.093 R)
• M9: 5,499,966 km (0.087 R)
• M10: 6,028,196 km (0.079 R)
• M11: 6,454,699 km (0.116 R)
• M12: 8,486,388 km (0.057 R)
• M13: 9,192,340 km (0.099 R)
• M14: 10,911,818 km (0.119 R)
• M15: 26,793,427 km (0.114 R)
• M16: 28,858,028 km (0.109 R)
• M17: 29,506,983 km (0.059 R)
• M18: 30,930,108 km (0.086 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 606.1

Radius: 6.7

Gravity: 13.5 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 5.09 AU - 7.49 AU

Year: 10186 Days

Day: 22.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 54,382,606 km

• M1: 83,326 km (0.097 R)
• M2: 315,801 km (0.114 R)
• M3: 539,001 km (0.05 R)
• M4: 1,082,341 km (0.113 R)
• M5: 1,326,335 km (0.096 R)
• M6: 1,709,305 km (0.074 R)
• M7: 2,535,534 km (0.113 R)
• M8: 3,431,027 km (0.106 R)
• M9: 3,729,176 km (0.041 R)
• M10: 4,017,600 km (0.108 R)
• M11: 4,434,829 km (0.047 R)
• M12: 4,973,082 km (0.112 R)
• M13: 5,454,338 km (0.099 R)
• M14: 5,757,573 km (0.034 R)
• M15: 6,324,699 km (0.054 R)
• M16: 7,487,373 km (0.06 R)
• M17: 9,977,729 km (0.112 R)
• M18: 10,638,353 km (0.095 R)
• M19: 11,327,551 km (0.079 R)
• M20: 11,766,321 km (0.07 R)
• M21: 13,331,115 km (0.074 R)
• M22: 18,098,949 km (0.12 R)
• M23: 19,311,440 km (0.116 R)
• M24: 20,175,816 km (0.039 R)
• M25: 23,184,977 km (0.117 R)
• M26: 24,613,637 km (0.115 R)
• M27: 26,099,892 km (0.032 R)
• M28: 31,557,222 km (0.054 R)
• M29: 32,316,132 km (0.105 R)
• M30: 34,323,137 km (0.091 R)
• M31: 38,706,803 km (0.118 R)
• M32: 45,752,863 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 338.1

Radius: 5.8

Gravity: 10.05 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 8.12 AU - 9.72 AU

Year: 17201 Days

Day: 24.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 54,382,606 km

• M1: 72,106 km (0.082 R)
• M2: 259,104 km (0.115 R)
• M3: 666,309 km (0.055 R)
• M4: 880,683 km (0.104 R)
• M5: 1,494,932 km (0.1 R)
• M6: 3,171,475 km (0.096 R)
• M7: 3,521,983 km (0.112 R)
• M8: 4,573,506 km (0.115 R)
• M9: 5,021,103 km (0.102 R)
• M10: 6,659,349 km (0.104 R)
• M11: 8,388,701 km (0.091 R)
• M12: 9,609,868 km (0.1 R)
• M13: 9,815,715 km (0.1 R)
• M14: 12,039,337 km (0.046 R)
• M15: 17,300,246 km (0.074 R)
• M16: 19,924,043 km (0.114 R)
• M17: 23,352,976 km (0.075 R)
• M18: 24,196,558 km (0.084 R)
• M19: 25,647,508 km (0.115 R)
• M20: 36,957,107 km (0.1 R)
• M21: 42,917,086 km (0.12 R)
• M22: 44,894,171 km (0.096 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 177 - 18,551 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit