🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 856.3

Radius: 9.5

Gravity: 9.49 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.69 AU - 0.75 AU

Year: 394 Days

Day: 10.6 Hours

Environment

Temp: -131 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,166,405 km

• M1: 118,182 km (0.111 R)
• M2: 432,487 km (0.065 R)
• M3: 829,520 km (0.111 R)
• M4: 1,142,629 km (0.112 R)
• M5: 1,796,820 km (0.106 R)
• M6: 2,104,244 km (0.106 R)
• M7: 2,553,187 km (0.081 R)
• M8: 3,223,685 km (0.028 R)
• M9: 3,594,538 km (0.095 R)
• M10: 4,170,041 km (0.116 R)
• M11: 5,210,793 km (0.058 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319.7

Radius: 8.3

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.7 AU - 0.96 AU

Year: 488 Days

Day: 14.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,166,405 km

• M1: 103,223 km (0.097 R)
• M2: 368,011 km (0.114 R)
• M3: 934,687 km (0.077 R)
• M4: 1,218,026 km (0.073 R)
• M5: 1,520,662 km (0.074 R)
• M6: 1,836,613 km (0.107 R)
• M7: 2,114,267 km (0.08 R)
• M8: 3,520,337 km (0.107 R)
• M9: 3,792,456 km (0.09 R)
• M10: 4,638,880 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136

Radius: 12.3

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.06 AU - 1.24 AU

Year: 796 Days

Day: 8.2 Hours

Environment

Temp: -159 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,166,405 km

• M1: 153,039 km (0.086 R)
• M2: 555,158 km (0.12 R)
• M3: 1,254,229 km (0.116 R)
• M4: 1,704,518 km (0.058 R)
• M5: 2,106,787 km (0.088 R)
• M6: 2,743,924 km (0.102 R)
• M7: 3,129,887 km (0.115 R)
• M8: 3,888,198 km (0.091 R)
• M9: 4,680,469 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 139.3

Radius: 13.8

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.18 AU - 1.62 AU

Year: 1070 Days

Day: 5.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 74,166,405 km

• M1: 175,478 km (0.071 R)
• M2: 796,908 km (0.06 R)
• M3: 1,251,087 km (0.042 R)
• M4: 2,373,969 km (0.114 R)
• M5: 3,679,509 km (0.076 R)
• M6: 4,440,514 km (0.113 R)
• M7: 5,553,971 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.6

Radius: 12.5

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.51 AU - 3.91 AU

Year: 3713 Days

Day: 7.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 67.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 74,166,405 km

• M1: 157,377 km (0.109 R)
• M2: 594,801 km (0.092 R)
• M3: 998,566 km (0.097 R)
• M4: 1,567,187 km (0.096 R)
• M5: 1,983,369 km (0.119 R)
• M6: 2,956,652 km (0.038 R)
• M7: 3,585,113 km (0.075 R)
• M8: 6,091,625 km (0.065 R)
• M9: 6,926,381 km (0.083 R)
• M10: 8,334,845 km (0.114 R)
• M11: 8,792,615 km (0.113 R)
• M12: 9,202,812 km (0.086 R)
• M13: 9,691,997 km (0.099 R)
• M14: 10,406,177 km (0.12 R)
• M15: 10,937,549 km (0.04 R)
• M16: 11,674,019 km (0.042 R)
• M17: 12,131,639 km (0.098 R)
• M18: 14,255,032 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.2

Radius: 14.4

Gravity: 4.7 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 3.48 AU - 3.88 AU

Year: 4558 Days

Day: 12 Hours

Environment

Temp: -219 °C

Axial Tilt: 87.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 74,166,405 km

• M1: 179,218 km (0.112 R)
• M2: 891,005 km (0.114 R)
• M3: 1,907,373 km (0.108 R)
• M4: 2,514,441 km (0.062 R)
• M5: 3,209,174 km (0.118 R)
• M6: 3,914,079 km (0.112 R)
• M7: 4,986,247 km (0.079 R)
• M8: 5,547,837 km (0.088 R)
• M9: 6,151,764 km (0.12 R)
• M10: 6,832,733 km (0.078 R)
• M11: 7,745,280 km (0.113 R)
• M12: 8,193,176 km (0.033 R)
• M13: 9,389,361 km (0.103 R)
• M14: 10,338,559 km (0.074 R)
• M15: 10,836,571 km (0.117 R)
• M16: 13,148,306 km (0.104 R)
• M17: 18,595,315 km (0.04 R)
• M18: 19,401,647 km (0.114 R)
• M19: 21,301,540 km (0.102 R)
• M20: 23,632,574 km (0.115 R)
• M21: 24,819,484 km (0.099 R)
• M22: 25,879,983 km (0.096 R)
• M23: 26,631,712 km (0.07 R)
• M24: 28,707,831 km (0.066 R)
• M25: 31,546,451 km (0.062 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.9

Radius: 14.8

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 4.6 AU - 5.16 AU

Year: 6961 Days

Day: 6.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 74,166,405 km

• M1: 194,328 km (0.03 R)
• M2: 687,701 km (0.026 R)
• M3: 1,497,325 km (0.097 R)
• M4: 2,009,548 km (0.088 R)
• M5: 2,542,416 km (0.033 R)
• M6: 3,021,877 km (0.086 R)
• M7: 3,749,671 km (0.12 R)
• M8: 4,329,213 km (0.089 R)
• M9: 5,284,246 km (0.042 R)
• M10: 7,475,705 km (0.072 R)
• M11: 8,107,457 km (0.075 R)
• M12: 8,660,819 km (0.097 R)
• M13: 10,388,974 km (0.106 R)
• M14: 11,312,142 km (0.101 R)
• M15: 12,872,747 km (0.057 R)
• M16: 15,171,468 km (0.072 R)
• M17: 17,670,949 km (0.109 R)
• M18: 22,452,995 km (0.117 R)
• M19: 23,474,000 km (0.079 R)
• M20: 23,995,947 km (0.093 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 449.9

Radius: 7.3

Gravity: 8.44 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 9.88 AU - 12.24 AU

Year: 23749 Days

Day: 22.8 Hours

Environment

Temp: -237 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 74,166,405 km

• M1: 91,105 km (0.098 R)
• M2: 321,336 km (0.106 R)
• M3: 719,715 km (0.094 R)
• M4: 1,631,365 km (0.091 R)
• M5: 1,916,199 km (0.089 R)
• M6: 2,563,958 km (0.077 R)
• M7: 3,294,145 km (0.102 R)
• M8: 4,867,316 km (0.081 R)
• M9: 5,196,132 km (0.059 R)
• M10: 5,462,117 km (0.097 R)
• M11: 6,021,464 km (0.09 R)
• M12: 7,880,068 km (0.108 R)
• M13: 8,385,858 km (0.084 R)
• M14: 10,994,546 km (0.11 R)
• M15: 15,381,803 km (0.114 R)
• M16: 16,251,714 km (0.106 R)
• M17: 17,916,439 km (0.112 R)
• M18: 19,875,573 km (0.12 R)
• M19: 21,387,260 km (0.049 R)
• M20: 21,678,975 km (0.073 R)
• M21: 22,670,660 km (0.08 R)
• M22: 24,531,208 km (0.105 R)
• M23: 27,053,877 km (0.094 R)
• M24: 28,086,402 km (0.101 R)
• M25: 29,986,444 km (0.072 R)
• M26: 30,844,089 km (0.06 R)
• M27: 36,336,276 km (0.112 R)
• M28: 36,751,858 km (0.098 R)
• M29: 38,017,456 km (0.059 R)
• M30: 39,457,635 km (0.047 R)
• M31: 41,534,353 km (0.116 R)
• M32: 43,061,597 km (0.091 R)
• M33: 45,582,471 km (0.042 R)
• M34: 49,038,182 km (0.117 R)
• M35: 52,311,832 km (0.088 R)
• M36: 52,664,584 km (0.106 R)
• M37: 58,528,222 km (0.096 R)
• M38: 60,059,207 km (0.108 R)
• M39: 62,802,533 km (0.06 R)
• M40: 64,003,355 km (0.082 R)
• M41: 66,038,634 km (0.085 R)
• M42: 67,280,296 km (0.053 R)
• M43: 68,748,449 km (0.113 R)
• M44: 70,023,771 km (0.101 R)
• M45: 70,882,762 km (0.118 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 473 - 15,451 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit