🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547.9

Radius: 9.7

Gravity: 5.82 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.78 AU - 0.8 AU

Year: 461 Days

Day: 8.6 Hours

Environment

Temp: -136 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 25,970,894 km

• M1: 120,725 km (0.119 R)
• M2: 432,637 km (0.046 R)
• M3: 1,162,525 km (0.097 R)
• M4: 1,615,507 km (0.071 R)
• M5: 2,434,855 km (0.081 R)
• M6: 3,062,119 km (0.092 R)
• M7: 3,655,723 km (0.114 R)
• M8: 4,535,957 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.3

Radius: 13.2

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.86 AU - 1.1 AU

Year: 636 Days

Day: 5.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,970,894 km

• M1: 164,109 km (0.085 R)
• M2: 632,051 km (0.104 R)
• M3: 1,044,193 km (0.095 R)
• M4: 1,931,309 km (0.067 R)
• M5: 3,777,496 km (0.119 R)
• M6: 4,316,347 km (0.117 R)
• M7: 4,787,581 km (0.076 R)
• M8: 5,512,532 km (0.084 R)
• M9: 6,029,243 km (0.115 R)
• M10: 6,768,406 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 705.7

Radius: 10.6

Gravity: 6.28 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 1.55 AU - 1.83 AU

Year: 1441 Days

Day: 9.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 25,970,894 km

• M1: 131,796 km (0.086 R)
• M2: 821,143 km (0.111 R)
• M3: 1,308,682 km (0.056 R)
• M4: 1,681,929 km (0.041 R)
• M5: 2,742,727 km (0.099 R)
• M6: 3,364,007 km (0.114 R)
• M7: 3,733,514 km (0.077 R)
• M8: 4,788,029 km (0.113 R)
• M9: 5,779,863 km (0.084 R)
• M10: 8,280,691 km (0.108 R)
• M11: 10,159,341 km (0.104 R)
• M12: 10,867,238 km (0.117 R)
• M13: 12,570,859 km (0.047 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.8

Radius: 11.3

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 2.16 AU - 2.46 AU

Year: 2303 Days

Day: 10.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 25,970,894 km

• M1: 140,921 km (0.032 R)
• M2: 517,160 km (0.066 R)
• M3: 1,600,996 km (0.074 R)
• M4: 2,979,840 km (0.044 R)
• M5: 3,985,138 km (0.065 R)
• M6: 4,919,526 km (0.083 R)
• M7: 6,407,426 km (0.106 R)
• M8: 8,767,632 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.6

Radius: 13.6

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 4.49 AU - 6.81 AU

Year: 8810 Days

Day: 11.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 25,970,894 km

• M1: 169,195 km (0.104 R)
• M2: 598,840 km (0.107 R)
• M3: 1,341,295 km (0.118 R)
• M4: 2,147,627 km (0.086 R)
• M5: 4,218,660 km (0.077 R)
• M6: 5,018,709 km (0.116 R)
• M7: 5,487,848 km (0.056 R)
• M8: 6,089,381 km (0.038 R)
• M9: 6,660,696 km (0.045 R)
• M10: 7,151,227 km (0.036 R)
• M11: 7,787,916 km (0.119 R)
• M12: 8,375,985 km (0.116 R)
• M13: 9,452,940 km (0.062 R)
• M14: 10,978,240 km (0.056 R)
• M15: 12,211,973 km (0.072 R)
• M16: 16,130,989 km (0.116 R)
• M17: 16,949,289 km (0.082 R)
• M18: 23,301,514 km (0.096 R)
• M19: 24,524,925 km (0.112 R)
• M20: 25,062,131 km (0.103 R)
• M21: 26,721,172 km (0.084 R)
• M22: 29,145,256 km (0.113 R)
• M23: 30,875,355 km (0.108 R)
• M24: 35,327,986 km (0.093 R)
• M25: 36,824,713 km (0.064 R)
• M26: 39,575,668 km (0.053 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 686.2

Radius: 4.2

Gravity: 38.9 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 8.02 AU - 9.42 AU

Year: 16892 Days

Day: 24.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 25,970,894 km

• M1: 52,210 km (0.093 R)
• M2: 991,834 km (0.046 R)
• M3: 1,420,133 km (0.089 R)
• M4: 2,038,271 km (0.079 R)
• M5: 2,342,852 km (0.111 R)
• M6: 2,941,693 km (0.098 R)
• M7: 4,370,053 km (0.082 R)
• M8: 7,019,730 km (0.104 R)
• M9: 7,663,899 km (0.089 R)
• M10: 8,651,394 km (0.038 R)
• M11: 12,508,476 km (0.078 R)
• M12: 15,709,721 km (0.112 R)
• M13: 18,462,322 km (0.061 R)
• M14: 28,843,666 km (0.094 R)
• M15: 44,659,153 km (0.093 R)
• M16: 48,784,015 km (0.057 R)
• M17: 51,613,958 km (0.042 R)
• M18: 57,052,589 km (0.084 R)
• M19: 62,667,595 km (0.064 R)
• M20: 64,618,202 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 36.9

Radius: 3.1

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 7.06 AU - 10.58 AU

Year: 17184 Days

Day: 19.5 Hours

Environment

Temp: -238 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,970,894 km

• M1: 38,596 km (0.097 R)
• M2: 345,870 km (0.078 R)
• M3: 849,118 km (0.099 R)
• M4: 1,761,216 km (0.081 R)
• M5: 2,800,323 km (0.103 R)
• M6: 4,424,058 km (0.104 R)
• M7: 10,804,706 km (0.118 R)
• M8: 11,022,521 km (0.059 R)
• M9: 16,360,921 km (0.08 R)
• M10: 21,853,706 km (0.075 R)
• M11: 25,506,886 km (0.095 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 542 - 18,839 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit