🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 324.1

Radius: 10.3

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.54 AU - 0.82 AU

Year: 368 Days

Day: 9.5 Hours

Environment

Temp: -128 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 63,336,998 km

• M1: 128,056 km (0.077 R)
• M2: 681,269 km (0.072 R)
• M3: 1,063,790 km (0.112 R)
• M4: 2,086,890 km (0.073 R)
• M5: 2,408,825 km (0.076 R)
• M6: 2,865,398 km (0.075 R)
• M7: 4,000,546 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 394.1

Radius: 12.3

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.74 AU - 1.24 AU

Year: 646 Days

Day: 12.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 63,336,998 km

• M1: 153,039 km (0.119 R)
• M2: 633,996 km (0.053 R)
• M3: 1,307,485 km (0.093 R)
• M4: 1,913,955 km (0.092 R)
• M5: 2,550,943 km (0.109 R)
• M6: 3,036,238 km (0.098 R)
• M7: 3,483,386 km (0.116 R)
• M8: 3,987,980 km (0.027 R)
• M9: 4,408,948 km (0.09 R)
• M10: 4,813,311 km (0.067 R)
• M11: 5,374,603 km (0.038 R)
• M12: 6,015,181 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 415.2

Radius: 11.4

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.23 AU - 1.39 AU

Year: 984 Days

Day: 13.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,336,998 km

• M1: 142,268 km (0.102 R)
• M2: 980,165 km (0.085 R)
• M3: 1,414,747 km (0.07 R)
• M4: 1,969,007 km (0.078 R)
• M5: 3,120,911 km (0.048 R)
• M6: 3,559,083 km (0.092 R)
• M7: 4,038,395 km (0.096 R)
• M8: 5,778,966 km (0.087 R)
• M9: 6,783,665 km (0.117 R)
• M10: 7,203,287 km (0.064 R)
• M11: 7,616,776 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 875.5

Radius: 11.6

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.15 AU - 1.49 AU

Year: 995 Days

Day: 14.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 63,336,998 km

• M1: 144,212 km (0.107 R)
• M2: 569,968 km (0.088 R)
• M3: 937,979 km (0.109 R)
• M4: 1,658,891 km (0.079 R)
• M5: 2,028,996 km (0.089 R)
• M6: 2,443,232 km (0.081 R)
• M7: 2,940,496 km (0.106 R)
• M8: 3,474,859 km (0.096 R)
• M9: 4,468,339 km (0.053 R)
• M10: 5,767,596 km (0.094 R)
• M11: 6,539,521 km (0.077 R)
• M12: 6,986,520 km (0.109 R)
• M13: 7,682,748 km (0.12 R)
• M14: 8,617,436 km (0.044 R)
• M15: 9,867,476 km (0.091 R)
• M16: 10,938,746 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 182.8

Radius: 8.2

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.4 AU - 2.56 AU

Year: 2562 Days

Day: 10.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 63,336,998 km

• M1: 102,325 km (0.076 R)
• M2: 587,321 km (0.093 R)
• M3: 904,020 km (0.074 R)
• M4: 1,303,745 km (0.106 R)
• M5: 1,673,252 km (0.118 R)
• M6: 2,352,576 km (0.074 R)
• M7: 2,650,575 km (0.083 R)
• M8: 3,218,748 km (0.04 R)
• M9: 3,555,642 km (0.075 R)
• M10: 5,849,127 km (0.098 R)
• M11: 6,282,213 km (0.066 R)
• M12: 6,566,748 km (0.039 R)
• M13: 7,900,413 km (0.06 R)
• M14: 8,344,868 km (0.042 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 530.1

Radius: 8.9

Gravity: 6.69 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.47 AU - 2.63 AU

Year: 2671 Days

Day: 10.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 171.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,336,998 km

• M1: 110,702 km (0.056 R)
• M2: 459,864 km (0.102 R)
• M3: 895,194 km (0.088 R)
• M4: 1,445,265 km (0.029 R)
• M5: 2,104,543 km (0.1 R)
• M6: 2,475,097 km (0.114 R)
• M7: 3,162,200 km (0.088 R)
• M8: 3,559,681 km (0.096 R)
• M9: 4,208,487 km (0.119 R)
• M10: 4,539,996 km (0.093 R)
• M11: 4,822,138 km (0.036 R)
• M12: 5,422,025 km (0.053 R)
• M13: 6,201,131 km (0.081 R)
• M14: 6,770,052 km (0.099 R)
• M15: 8,687,148 km (0.038 R)
• M16: 10,748,906 km (0.098 R)
• M17: 11,213,108 km (0.101 R)
• M18: 11,690,625 km (0.034 R)
• M19: 14,191,901 km (0.106 R)
• M20: 15,275,887 km (0.082 R)
• M21: 17,081,833 km (0.109 R)
• M22: 17,501,754 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 131.2

Radius: 5.7

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 5.69 AU - 6.55 AU

Year: 9932 Days

Day: 17.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 63,336,998 km

• M1: 71,209 km (0.088 R)
• M2: 259,104 km (0.086 R)
• M3: 978,220 km (0.103 R)
• M4: 1,517,521 km (0.061 R)
• M5: 1,975,589 km (0.109 R)
• M6: 2,901,002 km (0.111 R)
• M7: 3,796,345 km (0.092 R)
• M8: 4,040,638 km (0.098 R)
• M9: 4,414,783 km (0.054 R)
• M10: 4,710,239 km (0.09 R)
• M11: 5,648,068 km (0.062 R)
• M12: 6,577,519 km (0.091 R)
• M13: 8,850,060 km (0.099 R)
• M14: 10,438,939 km (0.078 R)
• M15: 13,139,779 km (0.11 R)
• M16: 15,363,552 km (0.075 R)
• M17: 16,447,388 km (0.098 R)
• M18: 19,607,045 km (0.11 R)
• M19: 20,472,768 km (0.117 R)
• M20: 23,002,617 km (0.09 R)
• M21: 27,013,785 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 810.7

Radius: 6.6

Gravity: 18.61 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 6.35 AU - 9.01 AU

Year: 13962 Days

Day: 15.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 63,336,998 km

• M1: 82,129 km (0.056 R)
• M2: 308,620 km (0.047 R)
• M3: 635,043 km (0.109 R)
• M4: 841,638 km (0.107 R)
• M5: 1,155,793 km (0.063 R)
• M6: 2,590,287 km (0.05 R)
• M7: 3,921,559 km (0.1 R)
• M8: 4,409,846 km (0.092 R)
• M9: 4,937,927 km (0.037 R)
• M10: 5,693,845 km (0.073 R)
• M11: 7,165,439 km (0.104 R)
• M12: 9,877,349 km (0.085 R)
• M13: 12,745,888 km (0.104 R)
• M14: 14,867,635 km (0.064 R)
• M15: 15,525,117 km (0.119 R)
• M16: 16,201,898 km (0.111 R)
• M17: 16,431,830 km (0.045 R)
• M18: 28,735,657 km (0.072 R)
• M19: 35,471,750 km (0.069 R)
• M20: 36,119,807 km (0.119 R)
• M21: 40,175,555 km (0.098 R)
• M22: 41,021,531 km (0.068 R)
• M23: 43,335,661 km (0.096 R)
• M24: 45,582,770 km (0.08 R)
• M25: 50,145,356 km (0.094 R)
• M26: 54,144,257 km (0.079 R)
• M27: 58,891,147 km (0.092 R)
• M28: 63,147,356 km (0.119 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 362 - 18,429 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit