🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.69 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 201.6

Radius: 13.8

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.27 AU - 1.47 AU

Year: 1107 Days

Day: 10.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 53,886,722 km

• M1: 171,589 km (0.039 R)
• M2: 688,449 km (0.059 R)
• M3: 1,152,203 km (0.093 R)
• M4: 1,631,066 km (0.117 R)
• M5: 2,188,916 km (0.119 R)
• M6: 2,644,442 km (0.099 R)
• M7: 3,385,400 km (0.095 R)
• M8: 4,071,904 km (0.039 R)
• M9: 4,705,751 km (0.109 R)
• M10: 5,908,518 km (0.041 R)
• M11: 6,384,837 km (0.113 R)
• M12: 6,928,027 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 593.2

Radius: 13.5

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.8 AU - 1.98 AU

Year: 1794 Days

Day: 5.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 53,886,722 km

• M1: 167,849 km (0.105 R)
• M2: 838,047 km (0.114 R)
• M3: 1,425,069 km (0.057 R)
• M4: 2,342,703 km (0.09 R)
• M5: 3,043,269 km (0.112 R)
• M6: 3,476,206 km (0.107 R)
• M7: 3,915,275 km (0.118 R)
• M8: 4,664,013 km (0.086 R)
• M9: 5,243,405 km (0.118 R)
• M10: 5,870,669 km (0.047 R)
• M11: 6,931,318 km (0.095 R)
• M12: 7,357,223 km (0.119 R)
• M13: 8,529,472 km (0.056 R)
• M14: 9,560,501 km (0.09 R)
• M15: 10,464,521 km (0.1 R)
• M16: 11,608,944 km (0.096 R)
• M17: 12,097,082 km (0.095 R)
• M18: 13,195,131 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972.1

Radius: 9.1

Gravity: 11.74 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.9 AU - 2.84 AU

Year: 2518 Days

Day: 7 Hours

Environment

Temp: -210 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 53,886,722 km

• M1: 113,246 km (0.083 R)
• M2: 707,598 km (0.082 R)
• M3: 1,006,046 km (0.109 R)
• M4: 1,460,374 km (0.111 R)
• M5: 2,152,713 km (0.047 R)
• M6: 2,505,914 km (0.061 R)
• M7: 3,825,666 km (0.106 R)
• M8: 4,524,139 km (0.106 R)
• M9: 5,430,852 km (0.105 R)
• M10: 5,954,444 km (0.087 R)
• M11: 6,981,284 km (0.047 R)
• M12: 8,256,157 km (0.065 R)
• M13: 8,877,886 km (0.112 R)
• M14: 9,164,066 km (0.115 R)
• M15: 9,604,782 km (0.048 R)
• M16: 9,906,521 km (0.103 R)
• M17: 10,253,438 km (0.051 R)
• M18: 15,025,311 km (0.059 R)
• M19: 16,109,746 km (0.117 R)
• M20: 20,783,931 km (0.089 R)
• M21: 21,289,722 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 521.6

Radius: 11.7

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 2.28 AU - 3.32 AU

Year: 3234 Days

Day: 9.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 53,886,722 km

• M1: 145,559 km (0.05 R)
• M2: 526,585 km (0.113 R)
• M3: 957,426 km (0.061 R)
• M4: 1,785,002 km (0.115 R)
• M5: 2,438,595 km (0.074 R)
• M6: 2,975,202 km (0.067 R)
• M7: 4,245,139 km (0.082 R)
• M8: 5,120,885 km (0.093 R)
• M9: 6,059,462 km (0.093 R)
• M10: 6,756,139 km (0.051 R)
• M11: 7,412,724 km (0.12 R)
• M12: 10,051,182 km (0.1 R)
• M13: 10,987,664 km (0.08 R)
• M14: 11,811,949 km (0.111 R)
• M15: 12,239,200 km (0.063 R)
• M16: 13,676,387 km (0.118 R)
• M17: 16,830,060 km (0.079 R)
• M18: 17,813,366 km (0.04 R)
• M19: 19,834,583 km (0.06 R)
• M20: 20,500,144 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 224.8

Radius: 11.2

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 2.87 AU - 3.13 AU

Year: 3587 Days

Day: 14.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 53,886,722 km

• M1: 139,276 km (0.116 R)
• M2: 542,891 km (0.09 R)
• M3: 924,365 km (0.08 R)
• M4: 1,597,705 km (0.057 R)
• M5: 2,098,409 km (0.107 R)
• M6: 2,789,103 km (0.04 R)
• M7: 3,402,155 km (0.081 R)
• M8: 4,045,874 km (0.085 R)
• M9: 4,875,993 km (0.079 R)
• M10: 5,600,047 km (0.087 R)
• M11: 6,928,027 km (0.092 R)
• M12: 9,000,556 km (0.114 R)
• M13: 10,019,317 km (0.097 R)
• M14: 13,069,468 km (0.098 R)
• M15: 13,581,392 km (0.111 R)
• M16: 15,908,537 km (0.069 R)
• M17: 16,296,294 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 197.1

Radius: 8.2

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 2.85 AU - 3.27 AU

Year: 3695 Days

Day: 5.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 53,886,722 km

• M1: 135,984 km (0.082 R)
• M2: 413,638 km (0.102 R)
• M3: 1,177,634 km (0.042 R)
• M4: 1,870,422 km (0.072 R)
• M5: 2,499,032 km (0.105 R)
• M6: 2,766,663 km (0.069 R)
• M7: 3,393,777 km (0.081 R)
• M8: 4,036,151 km (0.117 R)
• M9: 5,799,909 km (0.109 R)
• M10: 6,375,113 km (0.108 R)
• M11: 6,797,278 km (0.078 R)
• M12: 7,668,387 km (0.047 R)
• M13: 15,248,661 km (0.052 R)
• M14: 15,529,157 km (0.084 R)
• M15: 15,956,408 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 941

Radius: 4.7

Gravity: 42.6 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 4.96 AU - 7.06 AU

Year: 10170 Days

Day: 17.2 Hours

Environment

Temp: -237 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 53,886,722 km

• M1: 58,642 km (0.117 R)
• M2: 367,113 km (0.075 R)
• M3: 556,953 km (0.119 R)
• M4: 993,629 km (0.067 R)
• M5: 1,709,006 km (0.092 R)
• M6: 5,900,439 km (0.041 R)
• M7: 6,352,674 km (0.119 R)
• M8: 7,368,144 km (0.068 R)
• M9: 8,117,629 km (0.063 R)
• M10: 9,870,468 km (0.092 R)
• M11: 12,579,386 km (0.084 R)
• M12: 13,841,094 km (0.107 R)
• M13: 14,637,254 km (0.026 R)
• M14: 15,604,255 km (0.101 R)
• M15: 20,233,561 km (0.092 R)
• M16: 23,781,125 km (0.097 R)
• M17: 28,559,131 km (0.085 R)
• M18: 32,076,775 km (0.074 R)
• M19: 37,750,424 km (0.114 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: 423 - 11,299 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit