🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.2

Radius: 12.5

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.51 AU - 0.77 AU

Year: 347 Days

Day: 14.6 Hours

Environment

Temp: -152 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,551,650 km

• M1: 155,432 km (0.03 R)
• M2: 691,890 km (0.086 R)
• M3: 1,294,919 km (0.118 R)
• M4: 1,694,196 km (0.031 R)
• M5: 2,137,155 km (0.09 R)
• M6: 2,820,369 km (0.086 R)
• M7: 3,349,796 km (0.074 R)
• M8: 4,433,782 km (0.099 R)
• M9: 4,962,909 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.5

Radius: 10.1

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.62 AU - 0.68 AU

Year: 355 Days

Day: 9.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 45,551,650 km

• M1: 125,662 km (0.107 R)
• M2: 680,072 km (0.089 R)
• M3: 1,132,157 km (0.104 R)
• M4: 1,800,410 km (0.088 R)
• M5: 2,565,304 km (0.098 R)
• M6: 3,365,653 km (0.081 R)
• M7: 3,707,185 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210.2

Radius: 13.2

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.65 AU - 1.05 AU

Year: 532 Days

Day: 14.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 45,551,650 km

• M1: 164,408 km (0.102 R)
• M2: 593,006 km (0.114 R)
• M3: 1,234,781 km (0.101 R)
• M4: 1,708,108 km (0.119 R)
• M5: 2,647,434 km (0.093 R)
• M6: 3,146,492 km (0.094 R)
• M7: 3,742,789 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 121.8

Radius: 11.8

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.92 AU - 0.96 AU

Year: 618 Days

Day: 5.2 Hours

Environment

Temp: -174 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 45,551,650 km

• M1: 146,756 km (0.041 R)
• M2: 569,070 km (0.115 R)
• M3: 1,431,203 km (0.112 R)
• M4: 3,013,948 km (0.117 R)
• M5: 3,622,812 km (0.064 R)
• M6: 4,201,606 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158

Radius: 12.6

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.3 AU - 2.88 AU

Year: 2827 Days

Day: 9 Hours

Environment

Temp: -201 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 45,551,650 km

• M1: 253,718 km (0.1 R)
• M2: 832,063 km (0.089 R)
• M3: 1,319,154 km (0.07 R)
• M4: 1,796,222 km (0.118 R)
• M5: 2,673,164 km (0.084 R)
• M6: 3,224,582 km (0.068 R)
• M7: 4,264,886 km (0.11 R)
• M8: 4,785,636 km (0.099 R)
• M9: 5,224,257 km (0.093 R)
• M10: 7,333,138 km (0.109 R)
• M11: 8,111,047 km (0.113 R)
• M12: 8,884,019 km (0.066 R)
• M13: 11,186,480 km (0.095 R)
• M14: 11,855,033 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.5

Radius: 8.7

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 3.62 AU - 5.4 AU

Year: 6496 Days

Day: 12.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 45,551,650 km

• M1: 109,206 km (0.088 R)
• M2: 447,746 km (0.065 R)
• M3: 829,221 km (0.093 R)
• M4: 1,203,964 km (0.05 R)
• M5: 1,641,986 km (0.107 R)
• M6: 2,125,337 km (0.082 R)
• M7: 3,040,726 km (0.085 R)
• M8: 3,823,572 km (0.089 R)
• M9: 5,338,550 km (0.119 R)
• M10: 6,206,068 km (0.06 R)
• M11: 9,090,015 km (0.056 R)
• M12: 9,468,199 km (0.116 R)
• M13: 11,482,385 km (0.094 R)
• M14: 13,000,354 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 933.4

Radius: 7.7

Gravity: 15.74 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 7.95 AU - 10.17 AU

Year: 18496 Days

Day: 15.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 45,551,650 km

• M1: 95,743 km (0.089 R)
• M2: 815,458 km (0.104 R)
• M3: 1,120,488 km (0.052 R)
• M4: 1,814,024 km (0.118 R)
• M5: 2,212,253 km (0.087 R)
• M6: 2,765,915 km (0.04 R)
• M7: 5,448,055 km (0.072 R)
• M8: 5,770,738 km (0.116 R)
• M9: 6,410,119 km (0.112 R)
• M10: 7,579,675 km (0.082 R)
• M11: 8,559,093 km (0.087 R)
• M12: 9,854,760 km (0.105 R)
• M13: 11,019,828 km (0.084 R)
• M14: 11,341,015 km (0.109 R)
• M15: 12,759,202 km (0.115 R)
• M16: 13,257,214 km (0.109 R)
• M17: 14,520,418 km (0.074 R)
• M18: 15,459,294 km (0.095 R)
• M19: 15,700,147 km (0.069 R)
• M20: 16,354,787 km (0.096 R)
• M21: 18,248,846 km (0.085 R)
• M22: 21,857,146 km (0.073 R)
• M23: 22,467,207 km (0.11 R)
• M24: 24,365,753 km (0.119 R)
• M25: 27,176,548 km (0.109 R)
• M26: 30,447,056 km (0.098 R)
• M27: 32,635,673 km (0.105 R)
• M28: 47,498,072 km (0.047 R)
• M29: 49,558,783 km (0.116 R)
• M30: 51,499,516 km (0.084 R)
• M31: 56,857,663 km (0.11 R)
• M32: 57,624,651 km (0.065 R)
• M33: 67,374,543 km (0.036 R)
• M34: 69,753,897 km (0.117 R)
• M35: 71,741,903 km (0.113 R)
• M36: 73,767,458 km (0.228 R)
• M37: 78,404,394 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 152.4

Radius: 6.9

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 9.2 AU - 9.66 AU

Year: 19641 Days

Day: 17.6 Hours

Environment

Temp: -237 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 45,551,650 km

• M1: 86,318 km (0.112 R)
• M2: 305,329 km (0.09 R)
• M3: 970,741 km (0.091 R)
• M4: 1,301,202 km (0.092 R)
• M5: 2,426,328 km (0.056 R)
• M6: 2,660,299 km (0.039 R)
• M7: 2,995,697 km (0.095 R)
• M8: 4,511,273 km (0.059 R)
• M9: 9,328,923 km (0.119 R)
• M10: 14,699,337 km (0.115 R)
• M11: 16,565,720 km (0.099 R)
• M12: 17,126,712 km (0.115 R)
• M13: 20,600,824 km (0.112 R)
• M14: 32,900,013 km (0.089 R)
• M15: 37,130,491 km (0.115 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: 241 - 18,382 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit