🌌 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: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.05

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.53 AU - 0.67 AU

Year: 305 Days

Day: 17.1 Hours

Environment

Temp: -125 °C

Axial Tilt: 113.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,193,021 km

• M1: 739,163 km (0.074 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.5

Radius: 12

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.53 AU - 0.83 AU

Year: 368 Days

Day: 15 Hours

Environment

Temp: -129 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,193,021 km

• M1: 149,299 km (0.062 R)
• M2: 562,039 km (0.1 R)
• M3: 991,834 km (0.085 R)
• M4: 1,372,411 km (0.117 R)
• M5: 2,022,414 km (0.044 R)
• M6: 2,801,968 km (0.083 R)
• M7: 3,224,881 km (0.079 R)
• M8: 3,609,797 km (0.085 R)
• M9: 4,050,362 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30.5

Radius: 12.6

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 2.21 AU - 3.55 AU

Year: 3206 Days

Day: 12.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,193,021 km

• M1: 157,227 km (0.052 R)
• M2: 558,299 km (0.082 R)
• M3: 1,526,796 km (0.072 R)
• M4: 2,135,510 km (0.06 R)
• M5: 2,697,399 km (0.099 R)
• M6: 4,698,869 km (0.115 R)
• M7: 5,365,477 km (0.094 R)
• M8: 6,074,870 km (0.116 R)
• M9: 6,595,471 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 947.2

Radius: 10.9

Gravity: 7.97 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 2.47 AU - 3.55 AU

Year: 3426 Days

Day: 11.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 51,193,021 km

• M1: 135,835 km (0.099 R)
• M2: 576,999 km (0.108 R)
• M3: 1,308,981 km (0.119 R)
• M4: 1,901,987 km (0.108 R)
• M5: 2,291,241 km (0.079 R)
• M6: 3,214,260 km (0.087 R)
• M7: 3,964,044 km (0.084 R)
• M8: 4,415,830 km (0.072 R)
• M9: 5,450,299 km (0.076 R)
• M10: 6,010,244 km (0.089 R)
• M11: 8,568,966 km (0.101 R)
• M12: 9,171,995 km (0.084 R)
• M13: 9,884,081 km (0.051 R)
• M14: 11,734,307 km (0.113 R)
• M15: 12,195,817 km (0.069 R)
• M16: 12,765,486 km (0.1 R)
• M17: 13,155,038 km (0.083 R)
• M18: 15,007,509 km (0.108 R)
• M19: 15,661,850 km (0.103 R)
• M20: 18,595,315 km (0.099 R)
• M21: 18,970,356 km (0.107 R)
• M22: 24,615,582 km (0.117 R)
• M23: 25,525,885 km (0.11 R)
• M24: 25,911,698 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 925.7

Radius: 10.6

Gravity: 8.24 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 3.92 AU - 3.92 AU

Year: 5091 Days

Day: 12.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 51,193,021 km

• M1: 133,441 km (0.027 R)
• M2: 480,508 km (0.116 R)
• M3: 961,166 km (0.068 R)
• M4: 1,408,614 km (0.098 R)
• M5: 1,836,763 km (0.104 R)
• M6: 2,589,988 km (0.101 R)
• M7: 3,260,635 km (0.094 R)
• M8: 4,067,417 km (0.063 R)
• M9: 4,729,237 km (0.114 R)
• M10: 5,701,175 km (0.088 R)
• M11: 7,044,414 km (0.086 R)
• M12: 7,548,260 km (0.119 R)
• M13: 8,709,289 km (0.099 R)
• M14: 9,808,384 km (0.052 R)
• M15: 10,950,115 km (0.092 R)
• M16: 12,694,576 km (0.117 R)
• M17: 13,605,627 km (0.098 R)
• M18: 14,105,284 km (0.093 R)
• M19: 14,502,317 km (0.075 R)
• M20: 18,151,906 km (0.08 R)
• M21: 23,383,045 km (0.082 R)
• M22: 24,914,628 km (0.077 R)
• M23: 28,536,093 km (0.099 R)
• M24: 31,616,912 km (0.114 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 248.3

Radius: 6.7

Gravity: 5.53 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 6.16 AU - 10.02 AU

Year: 15095 Days

Day: 21 Hours

Environment

Temp: -225 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 51,193,021 km

• M1: 83,775 km (0.09 R)
• M2: 349,461 km (0.109 R)
• M3: 629,508 km (0.118 R)
• M4: 854,204 km (0.073 R)
• M5: 1,459,776 km (0.096 R)
• M6: 1,681,929 km (0.09 R)
• M7: 2,566,052 km (0.097 R)
• M8: 3,361,763 km (0.109 R)
• M9: 5,660,933 km (0.102 R)
• M10: 5,898,943 km (0.089 R)
• M11: 6,358,807 km (0.108 R)
• M12: 6,880,455 km (0.11 R)
• M13: 7,511,159 km (0.108 R)
• M14: 10,073,322 km (0.064 R)
• M15: 10,575,971 km (0.117 R)
• M16: 13,224,901 km (0.092 R)
• M17: 16,285,972 km (0.114 R)
• M18: 22,980,627 km (0.099 R)
• M19: 26,784,601 km (0.054 R)
• M20: 28,935,370 km (0.108 R)
• M21: 30,362,533 km (0.117 R)
• M22: 32,050,147 km (0.119 R)
• M23: 42,462,458 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 252.3

Radius: 3.5

Gravity: 20.6 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 7.27 AU - 11.05 AU

Year: 18187 Days

Day: 19.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 51,193,021 km

• M1: 43,533 km (0.081 R)
• M2: 161,117 km (0.045 R)
• M3: 273,315 km (0.117 R)
• M4: 452,683 km (0.103 R)
• M5: 768,484 km (0.104 R)
• M6: 1,084,285 km (0.118 R)
• M7: 1,240,166 km (0.092 R)
• M8: 1,627,026 km (0.06 R)
• M9: 1,815,669 km (0.075 R)
• M10: 2,217,788 km (0.093 R)
• M11: 2,894,719 km (0.049 R)
• M12: 3,491,913 km (0.113 R)
• M13: 4,253,815 km (0.104 R)
• M14: 6,948,971 km (0.1 R)
• M15: 8,097,733 km (0.108 R)
• M16: 8,882,673 km (0.119 R)
• M17: 9,818,407 km (0.117 R)
• M18: 10,495,188 km (0.117 R)
• M19: 12,233,815 km (0.087 R)
• M20: 13,641,531 km (0.11 R)
• M21: 15,017,831 km (0.081 R)
• M22: 16,773,661 km (0.087 R)
• M23: 19,778,484 km (0.046 R)
• M24: 21,969,345 km (0.049 R)
• M25: 25,262,293 km (0.032 R)
• M26: 27,025,603 km (0.114 R)
• M27: 28,452,617 km (0.054 R)
• M28: 31,677,948 km (0.111 R)
• M29: 33,148,195 km (0.064 R)
• M30: 34,192,389 km (0.097 R)
• M31: 37,455,866 km (0.112 R)
• M32: 38,082,232 km (0.072 R)
• M33: 39,613,815 km (0.051 R)
• M34: 45,580,826 km (0.07 R)
• M35: 46,294,557 km (0.082 R)
• M36: 49,673,823 km (0.076 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: 310 - 16,671 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit