🌌 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: 903.8

Radius: 13.8

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.46 AU - 0.56 AU

Year: 243 Days

Day: 12 Hours

Environment

Temp: -149 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 48,882,324 km

• M1: 171,738 km (0.111 R)
• M2: 691,890 km (0.101 R)
• M3: 1,128,716 km (0.111 R)
• M4: 1,909,766 km (0.109 R)
• M5: 2,952,464 km (0.099 R)
• M6: 3,525,423 km (0.118 R)
• M7: 4,063,078 km (0.047 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88.9

Radius: 13.9

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.86 AU - 1.4 AU

Year: 801 Days

Day: 14.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 48,882,324 km

• M1: 172,935 km (0.075 R)
• M2: 822,190 km (0.114 R)
• M3: 1,572,872 km (0.083 R)
• M4: 2,122,046 km (0.107 R)
• M5: 2,563,958 km (0.118 R)
• M6: 3,199,300 km (0.074 R)
• M7: 3,961,950 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706.1

Radius: 13

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.95 AU - 1.37 AU

Year: 833 Days

Day: 9.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 48,882,324 km

• M1: 161,865 km (0.102 R)
• M2: 824,434 km (0.062 R)
• M3: 1,337,405 km (0.102 R)
• M4: 2,366,638 km (0.116 R)
• M5: 3,014,995 km (0.119 R)
• M6: 3,706,437 km (0.057 R)
• M7: 4,145,207 km (0.071 R)
• M8: 4,687,051 km (0.078 R)
• M9: 5,754,432 km (0.098 R)
• M10: 6,689,269 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 794

Radius: 11

Gravity: 6.56 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 2.09 AU - 3.05 AU

Year: 2747 Days

Day: 7.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 48,882,324 km

• M1: 136,732 km (0.098 R)
• M2: 576,550 km (0.115 R)
• M3: 1,090,718 km (0.085 R)
• M4: 1,703,172 km (0.118 R)
• M5: 2,050,688 km (0.119 R)
• M6: 2,402,691 km (0.116 R)
• M7: 4,283,436 km (0.034 R)
• M8: 4,795,659 km (0.099 R)
• M9: 5,473,936 km (0.083 R)
• M10: 6,410,718 km (0.106 R)
• M11: 7,482,437 km (0.114 R)
• M12: 7,832,645 km (0.119 R)
• M13: 8,566,124 km (0.073 R)
• M14: 9,199,820 km (0.098 R)
• M15: 10,131,665 km (0.099 R)
• M16: 12,893,242 km (0.119 R)
• M17: 14,742,421 km (0.116 R)
• M18: 16,069,354 km (0.034 R)
• M19: 17,809,926 km (0.081 R)
• M20: 19,673,018 km (0.084 R)
• M21: 20,036,241 km (0.108 R)
• M22: 20,713,770 km (0.043 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.7

Radius: 13.7

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 3.11 AU - 3.77 AU

Year: 4255 Days

Day: 7.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 48,882,324 km

• M1: 170,392 km (0.104 R)
• M2: 664,065 km (0.088 R)
• M3: 1,139,786 km (0.09 R)
• M4: 1,660,237 km (0.03 R)
• M5: 2,901,152 km (0.106 R)
• M6: 5,167,559 km (0.091 R)
• M7: 5,832,671 km (0.089 R)
• M8: 6,949,419 km (0.038 R)
• M9: 8,489,679 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543.4

Radius: 13.8

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 4.03 AU - 5.55 AU

Year: 6991 Days

Day: 12.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 48,882,324 km

• M1: 171,589 km (0.106 R)
• M2: 768,933 km (0.106 R)
• M3: 1,311,225 km (0.114 R)
• M4: 2,080,009 km (0.085 R)
• M5: 2,568,745 km (0.086 R)
• M6: 3,404,698 km (0.114 R)
• M7: 4,018,049 km (0.097 R)
• M8: 4,704,255 km (0.099 R)
• M9: 5,557,411 km (0.098 R)
• M10: 10,963,430 km (0.096 R)
• M11: 11,746,724 km (0.088 R)
• M12: 12,306,818 km (0.103 R)
• M13: 14,151,211 km (0.1 R)
• M14: 15,080,363 km (0.119 R)
• M15: 18,723,520 km (0.067 R)
• M16: 19,700,992 km (0.106 R)
• M17: 21,380,378 km (0.109 R)
• M18: 25,189,589 km (0.117 R)
• M19: 26,815,119 km (0.095 R)
• M20: 27,254,189 km (0.091 R)
• M21: 30,179,725 km (0.063 R)
• M22: 30,942,524 km (0.077 R)
• M23: 32,706,134 km (0.037 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 376

Radius: 10.9

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 4.98 AU - 6.3 AU

Year: 8932 Days

Day: 10.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 48,882,324 km

• M1: 136,284 km (0.067 R)
• M2: 1,624,633 km (0.111 R)
• M3: 3,642,409 km (0.098 R)
• M4: 4,560,641 km (0.099 R)
• M5: 9,203,261 km (0.108 R)
• M6: 11,387,988 km (0.111 R)
• M7: 11,997,001 km (0.119 R)
• M8: 12,896,832 km (0.116 R)
• M9: 14,950,063 km (0.082 R)
• M10: 16,054,694 km (0.066 R)
• M11: 18,015,174 km (0.102 R)
• M12: 24,596,732 km (0.077 R)
• M13: 26,308,581 km (0.111 R)
• M14: 28,374,079 km (0.1 R)
• M15: 30,352,211 km (0.054 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 682.2

Radius: 6.2

Gravity: 17.75 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 6.21 AU - 6.21 AU

Year: 10320 Days

Day: 20.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 48,882,324 km

• M1: 77,492 km (0.03 R)
• M2: 312,660 km (0.097 R)
• M3: 529,128 km (0.081 R)
• M4: 1,206,956 km (0.036 R)
• M5: 1,588,131 km (0.059 R)
• M6: 2,169,618 km (0.073 R)
• M7: 2,411,518 km (0.091 R)
• M8: 3,062,119 km (0.068 R)
• M9: 4,178,119 km (0.075 R)
• M10: 7,890,988 km (0.105 R)
• M11: 8,330,657 km (0.052 R)
• M12: 10,724,821 km (0.087 R)
• M13: 13,729,195 km (0.082 R)
• M14: 16,040,482 km (0.057 R)
• M15: 19,141,347 km (0.109 R)
• M16: 21,586,075 km (0.068 R)
• M17: 22,532,431 km (0.116 R)
• M18: 25,065,422 km (0.033 R)
• M19: 25,631,800 km (0.082 R)
• M20: 26,692,449 km (0.08 R)
• M21: 30,688,806 km (0.119 R)
• M22: 32,997,550 km (0.04 R)
• M23: 38,579,047 km (0.118 R)
• M24: 45,591,597 km (0.111 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 379 - 13,339 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit