🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370.9

Radius: 11.7

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.51 AU - 0.51 AU

Year: 243 Days

Day: 10.8 Hours

Environment

Temp: -144 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 46,969,508 km

• M1: 145,708 km (0.065 R)
• M2: 532,269 km (0.089 R)
• M3: 902,524 km (0.103 R)
• M4: 1,414,298 km (0.115 R)
• M5: 1,790,986 km (0.044 R)
• M6: 2,308,445 km (0.068 R)
• M7: 2,846,997 km (0.102 R)
• M8: 3,239,093 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40.5

Radius: 12.7

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.57 AU - 0.93 AU

Year: 433 Days

Day: 9.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 46,969,508 km

• M1: 157,975 km (0.117 R)
• M2: 725,550 km (0.038 R)
• M3: 1,141,133 km (0.092 R)
• M4: 1,670,111 km (0.04 R)
• M5: 2,226,764 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.3

Radius: 12.7

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.76 AU - 1.18 AU

Year: 637 Days

Day: 5.2 Hours

Environment

Temp: -176 °C

Axial Tilt: 128.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 46,969,508 km

• M1: 157,975 km (0.088 R)
• M2: 553,213 km (0.119 R)
• M3: 960,867 km (0.118 R)
• M4: 1,541,307 km (0.091 R)
• M5: 2,030,941 km (0.078 R)
• M6: 2,683,636 km (0.092 R)
• M7: 4,285,381 km (0.077 R)
• M8: 5,001,954 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.6

Radius: 14.4

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.63 AU - 2.69 AU

Year: 2117 Days

Day: 10.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 46,969,508 km

• M1: 180,265 km (0.107 R)
• M2: 914,043 km (0.101 R)
• M3: 1,362,388 km (0.076 R)
• M4: 2,282,714 km (0.073 R)
• M5: 3,095,180 km (0.064 R)
• M6: 4,054,551 km (0.082 R)
• M7: 4,755,118 km (0.1 R)
• M8: 6,864,597 km (0.077 R)
• M9: 7,381,608 km (0.062 R)
• M10: 8,624,467 km (0.106 R)
• M11: 9,296,311 km (0.047 R)
• M12: 9,787,141 km (0.081 R)
• M13: 13,324,533 km (0.065 R)
• M14: 14,223,616 km (0.045 R)
• M15: 14,782,214 km (0.119 R)
• M16: 15,258,833 km (0.052 R)
• M17: 16,648,448 km (0.111 R)
• M18: 17,374,147 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34.8

Radius: 9.2

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 2.6 AU - 3.62 AU

Year: 3657 Days

Day: 5.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 46,969,508 km

• M1: 114,442 km (0.099 R)
• M2: 451,486 km (0.027 R)
• M3: 847,173 km (0.103 R)
• M4: 1,228,348 km (0.109 R)
• M5: 3,110,888 km (0.115 R)
• M6: 3,432,673 km (0.111 R)
• M7: 3,791,408 km (0.109 R)
• M8: 5,427,860 km (0.106 R)
• M9: 6,140,693 km (0.097 R)
• M10: 6,476,989 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 96

Radius: 11.8

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 3.18 AU - 3.38 AU

Year: 3961 Days

Day: 6.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 46,969,508 km

• M1: 147,055 km (0.119 R)
• M2: 594,352 km (0.118 R)
• M3: 1,029,084 km (0.05 R)
• M4: 1,652,757 km (0.071 R)
• M5: 2,025,106 km (0.091 R)
• M6: 2,392,968 km (0.079 R)
• M7: 3,001,532 km (0.116 R)
• M8: 3,436,413 km (0.067 R)
• M9: 4,035,253 km (0.102 R)
• M10: 4,981,459 km (0.05 R)
• M11: 6,093,271 km (0.066 R)
• M12: 8,624,766 km (0.117 R)
• M13: 9,701,272 km (0.073 R)
• M14: 10,123,138 km (0.062 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 686

Radius: 6.7

Gravity: 15.28 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 5.8 AU - 6.2 AU

Year: 9801 Days

Day: 17.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 141.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 46,969,508 km

• M1: 84,224 km (0.115 R)
• M2: 402,269 km (0.1 R)
• M3: 650,601 km (0.057 R)
• M4: 1,188,256 km (0.111 R)
• M5: 1,504,057 km (0.065 R)
• M6: 2,342,553 km (0.086 R)
• M7: 2,675,109 km (0.074 R)
• M8: 2,885,145 km (0.066 R)
• M9: 3,891,340 km (0.093 R)
• M10: 6,094,468 km (0.078 R)
• M11: 7,316,233 km (0.068 R)
• M12: 8,027,871 km (0.087 R)
• M13: 9,394,746 km (0.078 R)
• M14: 13,662,774 km (0.103 R)
• M15: 15,066,450 km (0.086 R)
• M16: 17,348,416 km (0.062 R)
• M17: 19,930,326 km (0.119 R)
• M18: 21,731,035 km (0.051 R)
• M19: 23,637,660 km (0.111 R)
• M20: 26,126,371 km (0.039 R)
• M21: 28,480,592 km (0.12 R)
• M22: 29,193,127 km (0.114 R)
• M23: 30,231,336 km (0.118 R)
• M24: 31,726,118 km (0.107 R)
• M25: 32,823,418 km (0.063 R)
• M26: 34,977,628 km (0.085 R)
• M27: 36,504,872 km (0.106 R)
• M28: 40,197,696 km (0.118 R)
• M29: 41,741,995 km (0.045 R)
• M30: 44,539,176 km (0.111 R)
• M31: 45,636,775 km (0.103 R)
• M32: 46,052,957 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 94.5

Radius: 7.1

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 6.07 AU - 7.93 AU

Year: 12350 Days

Day: 16.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 46,969,508 km

• M1: 95,743 km (0.108 R)
• M2: 420,819 km (0.101 R)
• M3: 712,235 km (0.069 R)
• M4: 1,147,266 km (0.087 R)
• M5: 2,379,653 km (0.077 R)
• M6: 3,231,464 km (0.067 R)
• M7: 5,214,533 km (0.083 R)
• M8: 8,790,520 km (0.11 R)
• M9: 11,235,997 km (0.108 R)
• M10: 12,962,955 km (0.109 R)
• M11: 18,611,172 km (0.088 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 174.5

Radius: 4.1

Gravity: 10.38 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 7.15 AU - 11.65 AU

Year: 19219 Days

Day: 16.6 Hours

Environment

Temp: -243 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 46,969,508 km

• M1: 52,958 km (0.088 R)
• M2: 343,327 km (0.026 R)
• M3: 792,869 km (0.076 R)
• M4: 1,137,093 km (0.076 R)
• M5: 1,267,842 km (0.087 R)
• M6: 1,895,106 km (0.092 R)
• M7: 3,031,302 km (0.092 R)
• M8: 3,404,399 km (0.095 R)
• M9: 4,383,666 km (0.116 R)
• M10: 4,738,064 km (0.084 R)
• M11: 5,741,566 km (0.12 R)
• M12: 10,544,256 km (0.091 R)
• M13: 12,408,096 km (0.098 R)
• M14: 16,006,523 km (0.065 R)
• M15: 16,843,673 km (0.095 R)
• M16: 17,782,998 km (0.112 R)
• M17: 19,451,463 km (0.06 R)
• M18: 24,526,571 km (0.09 R)
• M19: 24,709,379 km (0.114 R)
• M20: 30,734,434 km (0.087 R)
• M21: 41,302,626 km (0.083 R)
• M22: 42,344,724 km (0.112 R)
• M23: 43,404,177 km (0.085 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 437 - 13,096 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit