🌌 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 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 431.9

Radius: 14.6

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.55 AU - 0.59 AU

Year: 297 Days

Day: 10.9 Hours

Environment

Temp: -147 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 65,328,690 km

• M1: 181,612 km (0.113 R)
• M2: 767,138 km (0.052 R)
• M3: 1,243,158 km (0.113 R)
• M4: 1,755,531 km (0.11 R)
• M5: 2,232,449 km (0.112 R)
• M6: 3,255,549 km (0.116 R)
• M7: 3,942,203 km (0.083 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472.5

Radius: 10.4

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.53 AU - 0.81 AU

Year: 379 Days

Day: 7.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 65,328,690 km

• M1: 129,402 km (0.114 R)
• M2: 473,477 km (0.089 R)
• M3: 980,614 km (0.113 R)
• M4: 1,434,793 km (0.044 R)
• M5: 1,827,338 km (0.039 R)
• M6: 2,316,972 km (0.081 R)
• M7: 3,053,293 km (0.09 R)
• M8: 4,024,781 km (0.11 R)
• M9: 4,355,991 km (0.102 R)
• M10: 4,691,688 km (0.048 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.8

Radius: 12.2

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.77 AU - 0.81 AU

Year: 485 Days

Day: 9.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 65,328,690 km

• M1: 151,991 km (0.08 R)
• M2: 667,655 km (0.038 R)
• M3: 1,201,121 km (0.104 R)
• M4: 1,663,379 km (0.11 R)
• M5: 2,424,832 km (0.033 R)
• M6: 2,914,167 km (0.084 R)
• M7: 3,634,630 km (0.111 R)
• M8: 4,023,734 km (0.106 R)
• M9: 4,950,792 km (0.081 R)
• M10: 5,482,313 km (0.088 R)
• M11: 6,014,882 km (0.112 R)
• M12: 6,679,844 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 65.1

Radius: 13.8

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.91 AU - 1.13 AU

Year: 711 Days

Day: 13.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 65,328,690 km

• M1: 172,038 km (0.09 R)
• M2: 852,708 km (0.071 R)
• M3: 1,576,911 km (0.107 R)
• M4: 2,068,639 km (0.087 R)
• M5: 2,571,737 km (0.05 R)
• M6: 3,118,966 km (0.105 R)
• M7: 3,743,687 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.8

Radius: 14.6

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.07 AU - 1.59 AU

Year: 1059 Days

Day: 13.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 65,328,690 km

• M1: 181,612 km (0.12 R)
• M2: 882,777 km (0.079 R)
• M3: 1,617,602 km (0.105 R)
• M4: 3,541,281 km (0.117 R)
• M5: 6,630,477 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467.1

Radius: 12

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.83 AU - 2.29 AU

Year: 2041 Days

Day: 8.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 65,328,690 km

• M1: 149,299 km (0.038 R)
• M2: 606,021 km (0.061 R)
• M3: 1,021,155 km (0.075 R)
• M4: 1,399,189 km (0.108 R)
• M5: 1,958,685 km (0.057 R)
• M6: 2,557,525 km (0.097 R)
• M7: 3,092,038 km (0.032 R)
• M8: 3,582,420 km (0.049 R)
• M9: 4,198,315 km (0.104 R)
• M10: 5,619,943 km (0.092 R)
• M11: 6,038,817 km (0.082 R)
• M12: 6,528,601 km (0.061 R)
• M13: 7,560,527 km (0.116 R)
• M14: 8,759,404 km (0.051 R)
• M15: 9,228,393 km (0.061 R)
• M16: 10,148,869 km (0.088 R)
• M17: 11,129,483 km (0.067 R)
• M18: 11,680,153 km (0.089 R)
• M19: 12,520,893 km (0.049 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 114.5

Radius: 9.7

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 2.11 AU - 3.07 AU

Year: 2877 Days

Day: 10.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 65,328,690 km

• M1: 120,576 km (0.109 R)
• M2: 431,141 km (0.091 R)
• M3: 740,509 km (0.114 R)
• M4: 1,165,218 km (0.077 R)
• M5: 1,613,413 km (0.111 R)
• M6: 2,099,008 km (0.074 R)
• M7: 2,580,114 km (0.074 R)
• M8: 2,995,099 km (0.114 R)
• M9: 3,591,546 km (0.039 R)
• M10: 6,307,495 km (0.119 R)
• M11: 6,702,284 km (0.113 R)
• M12: 7,722,840 km (0.096 R)
• M13: 9,045,435 km (0.103 R)
• M14: 9,729,995 km (0.084 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 458.8

Radius: 4.3

Gravity: 24.81 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 5.86 AU - 7.14 AU

Year: 11439 Days

Day: 17.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 65,328,690 km

• M1: 53,706 km (0.099 R)
• M2: 255,513 km (0.085 R)
• M3: 1,444,966 km (0.095 R)
• M4: 9,367,968 km (0.118 R)
• M5: 11,025,812 km (0.116 R)
• M6: 13,345,776 km (0.081 R)
• M7: 14,587,288 km (0.097 R)
• M8: 15,039,373 km (0.118 R)
• M9: 19,615,273 km (0.108 R)
• M10: 22,216,780 km (0.087 R)
• M11: 29,195,520 km (0.098 R)
• M12: 33,789,073 km (0.063 R)
• M13: 34,466,003 km (0.105 R)
• M14: 37,504,186 km (0.084 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 959.1

Radius: 3.9

Gravity: 63.06 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 6.26 AU - 8.22 AU

Year: 13447 Days

Day: 17.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 65,328,690 km

• M1: 48,470 km (0.113 R)
• M2: 169,943 km (0.034 R)
• M3: 291,566 km (0.107 R)
• M4: 562,937 km (0.119 R)
• M5: 832,512 km (0.073 R)
• M6: 1,169,556 km (0.075 R)
• M7: 1,640,640 km (0.102 R)
• M8: 1,811,032 km (0.075 R)
• M9: 1,955,843 km (0.092 R)
• M10: 2,310,240 km (0.12 R)
• M11: 2,591,634 km (0.114 R)
• M12: 2,752,451 km (0.087 R)
• M13: 5,496,375 km (0.111 R)
• M14: 6,076,815 km (0.118 R)
• M15: 6,826,151 km (0.096 R)
• M16: 8,455,720 km (0.099 R)
• M17: 8,810,267 km (0.052 R)
• M18: 9,333,710 km (0.099 R)
• M19: 10,157,396 km (0.061 R)
• M20: 10,850,334 km (0.049 R)
• M21: 11,636,022 km (0.093 R)
• M22: 14,219,577 km (0.097 R)
• M23: 14,648,324 km (0.115 R)
• M24: 14,793,135 km (0.099 R)
• M25: 21,963,211 km (0.104 R)
• M26: 22,439,681 km (0.032 R)
• M27: 23,810,147 km (0.114 R)
• M28: 29,967,296 km (0.106 R)
• M29: 44,232,500 km (0.078 R)
• M30: 44,535,137 km (0.105 R)
• M31: 44,991,709 km (0.058 R)
• M32: 48,435,303 km (0.097 R)
• M33: 53,751,712 km (0.115 R)
• M34: 57,085,351 km (0.12 R)
• M35: 59,260,205 km (0.097 R)
• M36: 60,927,174 km (0.118 R)
• M37: 62,245,131 km (0.086 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 393 - 11,545 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit