🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.4

Radius: 13

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.67 AU - 0.89 AU

Year: 476 Days

Day: 5.4 Hours

Environment

Temp: -164 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 36,645,438 km

• M1: 161,715 km (0.096 R)
• M2: 622,926 km (0.119 R)
• M3: 1,053,618 km (0.103 R)
• M4: 2,681,392 km (0.093 R)
• M5: 3,722,145 km (0.083 R)
• M6: 5,000,309 km (0.052 R)
• M7: 6,003,213 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.3

Radius: 10

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.79 AU - 1.25 AU

Year: 711 Days

Day: 11.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,645,438 km

• M1: 124,914 km (0.113 R)
• M2: 583,432 km (0.078 R)
• M3: 1,124,378 km (0.105 R)
• M4: 1,442,423 km (0.04 R)
• M5: 1,806,394 km (0.106 R)
• M6: 2,643,694 km (0.108 R)
• M7: 3,083,661 km (0.096 R)
• M8: 3,633,433 km (0.057 R)
• M9: 4,084,471 km (0.11 R)
• M10: 5,532,877 km (0.034 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.9

Radius: 11.8

Gravity: 6.84 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.24 AU - 1.44 AU

Year: 1071 Days

Day: 13.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,645,438 km

• M1: 146,905 km (0.081 R)
• M2: 559,496 km (0.12 R)
• M3: 1,489,247 km (0.091 R)
• M4: 1,900,491 km (0.064 R)
• M5: 2,376,512 km (0.071 R)
• M6: 3,976,162 km (0.084 R)
• M7: 5,112,956 km (0.053 R)
• M8: 6,934,460 km (0.117 R)
• M9: 7,386,395 km (0.062 R)
• M10: 7,992,266 km (0.111 R)
• M11: 9,124,872 km (0.093 R)
• M12: 11,953,917 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282.9

Radius: 10.5

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.86 AU - 2.24 AU

Year: 2026 Days

Day: 7.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,645,438 km

• M1: 131,197 km (0.028 R)
• M2: 486,492 km (0.102 R)
• M3: 815,009 km (0.053 R)
• M4: 1,355,506 km (0.069 R)
• M5: 2,017,178 km (0.12 R)
• M6: 4,399,374 km (0.041 R)
• M7: 5,436,387 km (0.083 R)
• M8: 5,889,668 km (0.083 R)
• M9: 6,462,179 km (0.073 R)
• M10: 7,147,038 km (0.101 R)
• M11: 8,923,363 km (0.101 R)
• M12: 9,866,728 km (0.089 R)
• M13: 12,240,397 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 529

Radius: 8.6

Gravity: 7.15 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 3.23 AU - 3.97 AU

Year: 4715 Days

Day: 5.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,645,438 km

• M1: 106,962 km (0.117 R)
• M2: 478,414 km (0.088 R)
• M3: 788,082 km (0.118 R)
• M4: 1,140,684 km (0.115 R)
• M5: 1,461,870 km (0.088 R)
• M6: 1,729,800 km (0.117 R)
• M7: 2,367,087 km (0.075 R)
• M8: 3,605,907 km (0.071 R)
• M9: 4,816,603 km (0.119 R)
• M10: 5,151,103 km (0.12 R)
• M11: 5,724,213 km (0.109 R)
• M12: 6,159,094 km (0.101 R)
• M13: 6,773,044 km (0.049 R)
• M14: 9,969,053 km (0.086 R)
• M15: 12,601,526 km (0.037 R)
• M16: 13,388,411 km (0.051 R)
• M17: 14,789,993 km (0.102 R)
• M18: 16,632,590 km (0.083 R)
• M19: 20,499,546 km (0.109 R)
• M20: 21,380,079 km (0.084 R)
• M21: 22,569,382 km (0.026 R)
• M22: 25,003,190 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470.2

Radius: 15

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 4.66 AU - 4.98 AU

Year: 7304 Days

Day: 9.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 36,645,438 km

• M1: 189,092 km (0.111 R)
• M2: 658,081 km (0.078 R)
• M3: 1,163,871 km (0.084 R)
• M4: 1,817,913 km (0.106 R)
• M5: 2,353,025 km (0.101 R)
• M6: 4,005,932 km (0.104 R)
• M7: 5,322,094 km (0.075 R)
• M8: 6,536,380 km (0.097 R)
• M9: 7,928,238 km (0.075 R)
• M10: 9,992,240 km (0.12 R)
• M11: 11,885,401 km (0.062 R)
• M12: 12,706,095 km (0.113 R)
• M13: 14,063,845 km (0.048 R)
• M14: 17,130,901 km (0.059 R)
• M15: 17,780,904 km (0.069 R)
• M16: 24,069,549 km (0.069 R)
• M17: 26,400,733 km (0.102 R)
• M18: 29,061,630 km (0.102 R)
• M19: 29,987,043 km (0.102 R)
• M20: 32,583,912 km (0.067 R)
• M21: 33,582,777 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 132.3

Radius: 7.4

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 7.25 AU - 8.47 AU

Year: 15211 Days

Day: 15.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 36,645,438 km

• M1: 93,050 km (0.109 R)
• M2: 363,074 km (0.109 R)
• M3: 616,493 km (0.066 R)
• M4: 992,731 km (0.107 R)
• M5: 1,699,881 km (0.1 R)
• M6: 4,525,485 km (0.032 R)
• M7: 4,998,214 km (0.089 R)
• M8: 5,784,202 km (0.095 R)
• M9: 9,319,349 km (0.098 R)
• M10: 9,900,686 km (0.102 R)
• M11: 10,505,810 km (0.072 R)
• M12: 11,484,479 km (0.076 R)
• M13: 14,606,138 km (0.066 R)
• M14: 16,779,795 km (0.096 R)
• M15: 19,018,676 km (0.039 R)
• M16: 19,734,652 km (0.076 R)
• M17: 20,917,373 km (0.112 R)
• M18: 26,739,423 km (0.092 R)
• M19: 27,456,445 km (0.112 R)
• M20: 28,094,181 km (0.097 R)
• M21: 34,812,771 km (0.062 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 337 - 14,535 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit