🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.2

Radius: 9.6

Gravity: 8.28 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.74 AU - 1.24 AU

Year: 636 Days

Day: 11.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 71.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 21,290,725 km

• M1: 119,529 km (0.078 R)
• M2: 508,034 km (0.108 R)
• M3: 829,969 km (0.068 R)
• M4: 1,209,499 km (0.049 R)
• M5: 1,795,324 km (0.069 R)
• M6: 2,528,354 km (0.1 R)
• M7: 2,840,265 km (0.116 R)
• M8: 3,515,700 km (0.064 R)
• M9: 5,096,799 km (0.113 R)
• M10: 5,880,393 km (0.034 R)
• M11: 6,997,291 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 943.7

Radius: 12.3

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.1 AU - 1.12 AU

Year: 755 Days

Day: 11.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 21,290,725 km

• M1: 153,787 km (0.106 R)
• M2: 635,641 km (0.118 R)
• M3: 1,053,618 km (0.105 R)
• M4: 1,755,681 km (0.104 R)
• M5: 2,157,800 km (0.067 R)
• M6: 2,576,225 km (0.085 R)
• M7: 2,972,659 km (0.063 R)
• M8: 3,508,519 km (0.091 R)
• M9: 3,982,894 km (0.108 R)
• M10: 4,705,451 km (0.084 R)
• M11: 5,246,996 km (0.114 R)
• M12: 6,673,561 km (0.081 R)
• M13: 8,039,838 km (0.1 R)
• M14: 8,896,137 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38.7

Radius: 14.7

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.27 AU - 1.69 AU

Year: 1163 Days

Day: 12.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 21,290,725 km

• M1: 182,809 km (0.065 R)
• M2: 733,179 km (0.08 R)
• M3: 2,364,694 km (0.118 R)
• M4: 2,853,131 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.9

Radius: 9.2

Gravity: 10.89 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.63 AU - 1.97 AU

Year: 1559 Days

Day: 5.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 21,290,725 km

• M1: 115,938 km (0.067 R)
• M2: 459,265 km (0.081 R)
• M3: 1,307,485 km (0.069 R)
• M4: 1,694,345 km (0.062 R)
• M5: 2,062,506 km (0.109 R)
• M6: 2,786,709 km (0.089 R)
• M7: 3,602,466 km (0.095 R)
• M8: 4,103,470 km (0.099 R)
• M9: 6,280,717 km (0.109 R)
• M10: 6,637,358 km (0.058 R)
• M11: 7,503,530 km (0.071 R)
• M12: 7,993,463 km (0.064 R)
• M13: 8,321,681 km (0.092 R)
• M14: 9,360,937 km (0.104 R)
• M15: 10,031,584 km (0.111 R)
• M16: 11,318,874 km (0.095 R)
• M17: 12,713,126 km (0.111 R)
• M18: 13,037,903 km (0.099 R)
• M19: 13,577,353 km (0.091 R)
• M20: 14,436,494 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 582.7

Radius: 13.7

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 3.4 AU - 4.08 AU

Year: 4670 Days

Day: 5.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 21,290,725 km

• M1: 175,478 km (0.115 R)
• M2: 681,717 km (0.066 R)
• M3: 1,238,222 km (0.114 R)
• M4: 2,375,913 km (0.078 R)
• M5: 3,627,898 km (0.048 R)
• M6: 4,056,795 km (0.056 R)
• M7: 5,835,514 km (0.065 R)
• M8: 7,192,516 km (0.097 R)
• M9: 7,980,897 km (0.045 R)
• M10: 9,095,251 km (0.114 R)
• M11: 10,226,361 km (0.052 R)
• M12: 11,631,683 km (0.099 R)
• M13: 12,865,566 km (0.107 R)
• M14: 20,441,352 km (0.1 R)
• M15: 21,602,681 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480.7

Radius: 13

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 4.06 AU - 4.48 AU

Year: 5697 Days

Day: 14.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 21,290,725 km

• M1: 304,731 km (0.083 R)
• M2: 800,648 km (0.083 R)
• M3: 1,246,300 km (0.076 R)
• M4: 2,242,322 km (0.118 R)
• M5: 3,301,326 km (0.11 R)
• M6: 3,866,507 km (0.041 R)
• M7: 5,111,460 km (0.105 R)
• M8: 7,937,065 km (0.079 R)
• M9: 8,956,574 km (0.053 R)
• M10: 10,937,100 km (0.06 R)
• M11: 11,673,571 km (0.102 R)
• M12: 13,923,373 km (0.101 R)
• M13: 15,347,844 km (0.102 R)
• M14: 21,102,126 km (0.078 R)
• M15: 22,978,383 km (0.034 R)
• M16: 25,358,185 km (0.088 R)
• M17: 28,752,112 km (0.075 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467.3

Radius: 10.1

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 4.79 AU - 7.13 AU

Year: 9395 Days

Day: 8 Hours

Environment

Temp: -215 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 21,290,725 km

• M1: 125,662 km (0.112 R)
• M2: 504,594 km (0.112 R)
• M3: 1,119,890 km (0.081 R)
• M4: 1,656,198 km (0.107 R)
• M5: 2,202,829 km (0.045 R)
• M6: 3,753,710 km (0.109 R)
• M7: 5,573,119 km (0.085 R)
• M8: 6,444,078 km (0.099 R)
• M9: 7,249,662 km (0.054 R)
• M10: 8,625,065 km (0.037 R)
• M11: 10,263,012 km (0.088 R)
• M12: 11,412,522 km (0.087 R)
• M13: 13,906,319 km (0.108 R)
• M14: 14,445,619 km (0.109 R)
• M15: 15,438,500 km (0.104 R)
• M16: 15,886,995 km (0.1 R)
• M17: 20,019,636 km (0.103 R)
• M18: 23,030,742 km (0.047 R)
• M19: 24,905,502 km (0.077 R)
• M20: 25,345,320 km (0.113 R)
• M21: 31,750,951 km (0.12 R)
• M22: 33,532,662 km (0.045 R)
• M23: 35,380,196 km (0.095 R)
• M24: 39,634,011 km (0.036 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 46.2

Radius: 5.1

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 5.15 AU - 8.41 AU

Year: 11399 Days

Day: 15.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 21,290,725 km

• M1: 65,823 km (0.098 R)
• M2: 415,433 km (0.031 R)
• M3: 840,291 km (0.12 R)
• M4: 1,763,011 km (0.056 R)
• M5: 1,984,865 km (0.061 R)
• M6: 2,411,069 km (0.095 R)
• M7: 3,117,620 km (0.089 R)
• M8: 6,138,449 km (0.098 R)
• M9: 6,390,821 km (0.112 R)
• M10: 7,282,125 km (0.119 R)
• M11: 7,887,847 km (0.074 R)
• M12: 10,136,901 km (0.053 R)
• M13: 11,136,813 km (0.072 R)
• M14: 11,767,518 km (0.108 R)
• M15: 16,485,237 km (0.091 R)
• M16: 20,411,582 km (0.074 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 158 - 11,674 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit