🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.35

Radius: 1.13

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.48 AU - 0.62 AU

Year: 268 Days

Day: 16.6 Hours

Environment

Temp: -116 °C

Axial Tilt: 9.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 32,142,602 km

• M1: 53,107 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 750.7

Radius: 9.3

Gravity: 8.68 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.73 AU - 0.97 AU

Year: 514 Days

Day: 9.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 32,142,602 km

• M1: 115,639 km (0.081 R)
• M2: 548,725 km (0.112 R)
• M3: 872,455 km (0.069 R)
• M4: 1,179,280 km (0.119 R)
• M5: 1,678,039 km (0.072 R)
• M6: 1,977,385 km (0.097 R)
• M7: 2,459,239 km (0.12 R)
• M8: 2,972,061 km (0.108 R)
• M9: 3,315,388 km (0.109 R)
• M10: 3,928,590 km (0.117 R)
• M11: 5,094,406 km (0.086 R)
• M12: 5,397,342 km (0.113 R)
• M13: 5,784,052 km (0.11 R)
• M14: 6,456,943 km (0.116 R)

Asteroid Belt

Center: 1.14 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.7

Radius: 10.6

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.42 AU - 1.42 AU

Year: 1110 Days

Day: 15 Hours

Environment

Temp: -180 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 32,142,602 km

• M1: 131,945 km (0.115 R)
• M2: 486,791 km (0.027 R)
• M3: 962,662 km (0.104 R)
• M4: 1,343,538 km (0.079 R)
• M5: 2,760,829 km (0.055 R)
• M6: 3,988,279 km (0.111 R)
• M7: 4,943,162 km (0.066 R)
• M8: 6,673,112 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810.1

Radius: 11.2

Gravity: 6.46 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.75 AU - 1.89 AU

Year: 1611 Days

Day: 14.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 32,142,602 km

• M1: 140,173 km (0.118 R)
• M2: 505,641 km (0.099 R)
• M3: 1,362,986 km (0.104 R)
• M4: 1,752,838 km (0.118 R)
• M5: 2,146,430 km (0.098 R)
• M6: 2,506,363 km (0.048 R)
• M7: 2,892,475 km (0.118 R)
• M8: 3,892,088 km (0.078 R)
• M9: 5,173,244 km (0.054 R)
• M10: 5,642,084 km (0.108 R)
• M11: 8,548,022 km (0.084 R)
• M12: 8,950,740 km (0.054 R)
• M13: 9,794,621 km (0.076 R)
• M14: 10,444,175 km (0.084 R)
• M15: 10,869,033 km (0.118 R)
• M16: 11,867,300 km (0.083 R)
• M17: 12,330,305 km (0.072 R)
• M18: 13,006,637 km (0.087 R)
• M19: 14,433,502 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21.9

Radius: 14.5

Gravity: 0.1 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.52 AU - 2.18 AU

Year: 1651 Days

Day: 7.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 32,142,602 km

• M1: 180,265 km (0.058 R)
• M2: 675,883 km (0.061 R)
• M3: 1,371,364 km (0.049 R)
• M4: 2,332,081 km (0.041 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 249.5

Radius: 13.4

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.95 AU - 2.43 AU

Year: 2126 Days

Day: 5.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,142,602 km

• M1: 173,085 km (0.069 R)
• M2: 1,102,985 km (0.108 R)
• M3: 2,417,502 km (0.057 R)
• M4: 2,883,200 km (0.096 R)
• M5: 3,439,255 km (0.117 R)
• M6: 4,961,713 km (0.106 R)
• M7: 6,605,943 km (0.093 R)
• M8: 7,631,436 km (0.036 R)
• M9: 8,390,945 km (0.045 R)
• M10: 10,413,508 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.7

Radius: 10.2

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.98 AU - 2.48 AU

Year: 2185 Days

Day: 12.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,142,602 km

• M1: 127,607 km (0.086 R)
• M2: 519,404 km (0.094 R)
• M3: 1,326,036 km (0.026 R)
• M4: 1,645,577 km (0.025 R)
• M5: 2,137,305 km (0.091 R)
• M6: 2,667,480 km (0.12 R)
• M7: 3,010,807 km (0.042 R)
• M8: 3,366,850 km (0.088 R)
• M9: 3,991,720 km (0.101 R)
• M10: 5,379,390 km (0.064 R)
• M11: 6,653,964 km (0.118 R)
• M12: 8,089,206 km (0.105 R)
• M13: 8,944,905 km (0.058 R)
• M14: 9,276,863 km (0.085 R)
• M15: 9,720,570 km (0.109 R)
• M16: 10,107,131 km (0.061 R)
• M17: 10,540,516 km (0.05 R)
• M18: 10,873,521 km (0.106 R)
• M19: 12,236,507 km (0.108 R)
• M20: 12,980,308 km (0.117 R)
• M21: 14,649,072 km (0.065 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.6

Radius: 10.4

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 4.35 AU - 4.41 AU

Year: 6013 Days

Day: 5.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 32,142,602 km

• M1: 129,402 km (0.064 R)
• M2: 637,137 km (0.103 R)
• M3: 994,975 km (0.114 R)
• M4: 2,330,136 km (0.099 R)
• M5: 2,695,305 km (0.107 R)
• M6: 3,215,606 km (0.063 R)
• M7: 5,553,971 km (0.073 R)
• M8: 7,610,044 km (0.054 R)
• M9: 10,043,253 km (0.076 R)
• M10: 12,252,664 km (0.029 R)
• M11: 13,523,348 km (0.08 R)
• M12: 14,272,235 km (0.064 R)
• M13: 20,517,198 km (0.108 R)
• M14: 20,866,809 km (0.052 R)
• M15: 21,220,308 km (0.077 R)
• M16: 22,674,250 km (0.108 R)
• M17: 23,198,591 km (0.079 R)
• M18: 27,773,443 km (0.09 R)
• M19: 28,633,631 km (0.054 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 124.4

Radius: 5.8

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 5.83 AU - 8.73 AU

Year: 12886 Days

Day: 16 Hours

Environment

Temp: -224 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 32,142,602 km

• M1: 72,106 km (0.045 R)
• M2: 278,551 km (0.093 R)
• M3: 537,954 km (0.037 R)
• M4: 1,152,801 km (0.114 R)
• M5: 1,389,016 km (0.076 R)
• M6: 2,003,863 km (0.094 R)
• M7: 2,414,360 km (0.117 R)
• M8: 2,785,363 km (0.058 R)
• M9: 4,276,405 km (0.077 R)
• M10: 4,846,672 km (0.067 R)
• M11: 5,122,081 km (0.119 R)
• M12: 6,105,687 km (0.113 R)
• M13: 6,558,819 km (0.097 R)
• M14: 6,861,755 km (0.091 R)
• M15: 7,315,785 km (0.108 R)
• M16: 10,470,804 km (0.084 R)
• M17: 11,405,641 km (0.116 R)
• M18: 11,794,745 km (0.065 R)
• M19: 17,625,621 km (0.039 R)
• M20: 21,927,308 km (0.105 R)
• M21: 22,528,691 km (0.103 R)
• M22: 26,624,382 km (0.098 R)
• M23: 28,092,835 km (0.12 R)
• M24: 28,623,757 km (0.108 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: 315 - 11,291 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit