🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.2

Radius: 8.7

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.45 AU - 0.57 AU

Year: 251 Days

Day: 6.5 Hours

Environment

Temp: -137 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 25,236,239 km

• M1: 109,805 km (0.095 R)
• M2: 402,717 km (0.107 R)
• M3: 701,464 km (0.111 R)
• M4: 1,184,965 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11

Radius: 8.4

Gravity: 0.16 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.96 AU - 0.98 AU

Year: 659 Days

Day: 8.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 25,236,239 km

• M1: 129,103 km (0.08 R)
• M2: 721,211 km (0.058 R)
• M3: 1,627,625 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822.9

Radius: 13.6

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.43 AU - 1.57 AU

Year: 1268 Days

Day: 13.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 25,236,239 km

• M1: 174,431 km (0.118 R)
• M2: 625,319 km (0.027 R)
• M3: 1,287,589 km (0.094 R)
• M4: 2,090,929 km (0.1 R)
• M5: 2,762,624 km (0.082 R)
• M6: 3,312,695 km (0.103 R)
• M7: 3,935,471 km (0.086 R)
• M8: 4,711,735 km (0.116 R)
• M9: 5,291,426 km (0.095 R)
• M10: 5,918,541 km (0.101 R)
• M11: 6,667,577 km (0.108 R)
• M12: 7,400,158 km (0.046 R)
• M13: 7,908,791 km (0.103 R)
• M14: 8,526,929 km (0.115 R)
• M15: 10,378,203 km (0.059 R)
• M16: 11,896,771 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.3

Radius: 10.9

Gravity: 6.72 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.95 AU - 2.01 AU

Year: 1923 Days

Day: 6.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 25,236,239 km

• M1: 135,536 km (0.097 R)
• M2: 676,781 km (0.117 R)
• M3: 2,439,193 km (0.049 R)
• M4: 3,541,879 km (0.028 R)
• M5: 4,013,262 km (0.109 R)
• M6: 5,082,288 km (0.113 R)
• M7: 6,076,965 km (0.046 R)
• M8: 7,424,692 km (0.039 R)
• M9: 7,775,798 km (0.087 R)
• M10: 8,511,820 km (0.102 R)
• M11: 9,027,783 km (0.104 R)
• M12: 9,462,215 km (0.096 R)
• M13: 9,945,865 km (0.11 R)
• M14: 10,813,084 km (0.079 R)
• M15: 12,007,024 km (0.096 R)
• M16: 14,383,237 km (0.101 R)
• M17: 16,805,974 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21

Radius: 9.3

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 2 AU - 2.74 AU

Year: 2518 Days

Day: 12.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 25,236,239 km

• M1: 118,332 km (0.111 R)
• M2: 485,595 km (0.062 R)
• M3: 1,480,421 km (0.098 R)
• M4: 2,102,299 km (0.074 R)
• M5: 2,932,118 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 782.2

Radius: 10.4

Gravity: 7.23 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 2.61 AU - 2.61 AU

Year: 2911 Days

Day: 13.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 25,236,239 km

• M1: 129,552 km (0.038 R)
• M2: 483,500 km (0.039 R)
• M3: 859,589 km (0.081 R)
• M4: 1,348,625 km (0.092 R)
• M5: 1,979,928 km (0.111 R)
• M6: 2,444,130 km (0.062 R)
• M7: 2,929,725 km (0.041 R)
• M8: 3,497,748 km (0.114 R)
• M9: 4,531,020 km (0.079 R)
• M10: 5,021,402 km (0.095 R)
• M11: 6,136,505 km (0.065 R)
• M12: 7,068,051 km (0.083 R)
• M13: 7,958,308 km (0.1 R)
• M14: 8,921,568 km (0.109 R)
• M15: 9,394,447 km (0.093 R)
• M16: 11,203,385 km (0.108 R)
• M17: 13,993,983 km (0.093 R)
• M18: 14,483,916 km (0.084 R)
• M19: 15,394,518 km (0.06 R)
• M20: 15,758,789 km (0.12 R)
• M21: 18,066,636 km (0.063 R)
• M22: 20,528,568 km (0.059 R)
• M23: 21,547,329 km (0.048 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.7

Radius: 12.3

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 2.45 AU - 3.49 AU

Year: 3533 Days

Day: 13.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 151.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 25,236,239 km

• M1: 153,039 km (0.043 R)
• M2: 558,598 km (0.051 R)
• M3: 1,736,831 km (0.081 R)
• M4: 2,330,436 km (0.066 R)
• M5: 2,870,035 km (0.051 R)
• M6: 3,492,063 km (0.074 R)
• M7: 4,116,784 km (0.099 R)
• M8: 5,031,724 km (0.072 R)
• M9: 5,776,423 km (0.113 R)
• M10: 6,447,219 km (0.101 R)
• M11: 7,358,121 km (0.032 R)
• M12: 8,422,360 km (0.096 R)
• M13: 10,447,167 km (0.066 R)
• M14: 11,021,174 km (0.11 R)
• M15: 13,245,096 km (0.064 R)
• M16: 16,128,146 km (0.049 R)
• M17: 17,401,823 km (0.119 R)
• M18: 20,337,531 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 515.3

Radius: 6.3

Gravity: 12.98 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 5.95 AU - 9.01 AU

Year: 14121 Days

Day: 21.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 25,236,239 km

• M1: 78,389 km (0.091 R)
• M2: 466,147 km (0.091 R)
• M3: 798,553 km (0.085 R)
• M4: 1,019,360 km (0.107 R)
• M5: 2,194,152 km (0.081 R)
• M6: 2,427,525 km (0.025 R)
• M7: 3,637,921 km (0.095 R)
• M8: 4,254,863 km (0.117 R)
• M9: 4,841,885 km (0.112 R)
• M10: 6,329,187 km (0.032 R)
• M11: 8,996,816 km (0.107 R)
• M12: 9,546,738 km (0.026 R)
• M13: 9,856,106 km (0.118 R)
• M14: 10,225,314 km (0.04 R)
• M15: 11,561,821 km (0.044 R)
• M16: 12,091,697 km (0.12 R)
• M17: 12,392,987 km (0.101 R)
• M18: 13,327,076 km (0.115 R)
• M19: 16,264,131 km (0.097 R)
• M20: 16,779,944 km (0.113 R)
• M21: 17,154,986 km (0.083 R)
• M22: 20,700,007 km (0.071 R)
• M23: 24,801,233 km (0.051 R)
• M24: 26,785,948 km (0.067 R)
• M25: 27,608,736 km (0.108 R)
• M26: 28,981,595 km (0.084 R)
• M27: 35,786,653 km (0.05 R)
• M28: 36,407,933 km (0.109 R)
• M29: 37,544,578 km (0.066 R)
• M30: 39,227,703 km (0.119 R)
• M31: 40,960,495 km (0.101 R)
• M32: 42,327,670 km (0.056 R)
• M33: 43,443,072 km (0.11 R)
• M34: 50,084,918 km (0.058 R)
• M35: 50,550,317 km (0.089 R)
• M36: 51,647,468 km (0.071 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 36.3

Radius: 3.8

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 6.66 AU - 10 AU

Year: 16595 Days

Day: 16.2 Hours

Environment

Temp: -243 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,236,239 km

• M1: 56,249 km (0.061 R)
• M2: 827,127 km (0.104 R)
• M3: 1,037,312 km (0.075 R)
• M4: 2,312,185 km (0.036 R)
• M5: 2,729,862 km (0.106 R)
• M6: 3,047,159 km (0.114 R)
• M7: 3,487,874 km (0.092 R)
• M8: 6,050,486 km (0.096 R)
• M9: 19,725,676 km (0.059 R)
• M10: 24,046,362 km (0.114 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 370 - 16,784 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit