🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.5

Radius: 12.1

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.57 AU - 0.59 AU

Year: 300 Days

Day: 5.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 57,386,593 km

• M1: 150,495 km (0.105 R)
• M2: 676,930 km (0.103 R)
• M3: 1,213,837 km (0.117 R)
• M4: 2,063,852 km (0.115 R)
• M5: 2,482,726 km (0.034 R)
• M6: 3,190,474 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.7

Radius: 12.1

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.69 AU - 0.89 AU

Year: 476 Days

Day: 14.2 Hours

Environment

Temp: -154 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,386,593 km

• M1: 150,495 km (0.056 R)
• M2: 574,306 km (0.059 R)
• M3: 1,100,292 km (0.098 R)
• M4: 1,512,285 km (0.086 R)
• M5: 1,943,276 km (0.059 R)
• M6: 2,506,961 km (0.059 R)
• M7: 3,040,577 km (0.065 R)
• M8: 3,919,464 km (0.042 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 95.4

Radius: 14.1

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.78 AU - 1.06 AU

Year: 599 Days

Day: 7.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 57,386,593 km

• M1: 175,478 km (0.085 R)
• M2: 628,610 km (0.057 R)
• M3: 1,424,471 km (0.076 R)
• M4: 2,052,932 km (0.115 R)
• M5: 2,827,699 km (0.091 R)
• M6: 3,515,700 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322

Radius: 8.3

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.18 AU - 1.56 AU

Year: 1088 Days

Day: 8.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,386,593 km

• M1: 103,372 km (0.084 R)
• M2: 396,584 km (0.078 R)
• M3: 747,241 km (0.097 R)
• M4: 1,030,879 km (0.081 R)
• M5: 1,317,060 km (0.088 R)
• M6: 2,141,344 km (0.082 R)
• M7: 2,417,651 km (0.107 R)
• M8: 2,883,050 km (0.1 R)
• M9: 3,543,974 km (0.113 R)
• M10: 3,903,158 km (0.075 R)
• M11: 4,446,647 km (0.071 R)
• M12: 4,813,611 km (0.103 R)
• M13: 5,218,572 km (0.105 R)
• M14: 6,177,794 km (0.067 R)
• M15: 6,529,498 km (0.085 R)
• M16: 7,340,917 km (0.097 R)
• M17: 7,998,549 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839.3

Radius: 11.2

Gravity: 6.69 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 3.94 AU - 4.76 AU

Year: 6154 Days

Day: 7.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 57,386,593 km

• M1: 139,276 km (0.108 R)
• M2: 619,036 km (0.087 R)
• M3: 1,240,615 km (0.088 R)
• M4: 2,400,298 km (0.113 R)
• M5: 3,119,714 km (0.117 R)
• M6: 3,784,677 km (0.044 R)
• M7: 4,330,709 km (0.102 R)
• M8: 6,057,966 km (0.097 R)
• M9: 7,926,443 km (0.076 R)
• M10: 8,822,534 km (0.086 R)
• M11: 11,357,770 km (0.027 R)
• M12: 13,426,558 km (0.11 R)
• M13: 14,461,477 km (0.097 R)
• M14: 15,735,153 km (0.103 R)
• M15: 16,885,261 km (0.111 R)
• M16: 17,480,810 km (0.072 R)
• M17: 20,299,384 km (0.061 R)
• M18: 23,002,917 km (0.097 R)
• M19: 24,065,510 km (0.038 R)
• M20: 29,683,359 km (0.102 R)
• M21: 30,260,059 km (0.061 R)
• M22: 31,436,048 km (0.085 R)
• M23: 32,035,337 km (0.059 R)
• M24: 33,463,249 km (0.1 R)
• M25: 33,983,400 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.2

Radius: 8.7

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 4.03 AU - 4.97 AU

Year: 6475 Days

Day: 7.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 57,386,593 km

• M1: 108,458 km (0.104 R)
• M2: 417,528 km (0.114 R)
• M3: 837,000 km (0.09 R)
• M4: 1,569,581 km (0.076 R)
• M5: 1,897,499 km (0.116 R)
• M6: 2,328,491 km (0.072 R)
• M7: 4,003,538 km (0.06 R)
• M8: 4,283,137 km (0.043 R)
• M9: 4,954,681 km (0.114 R)
• M10: 5,966,113 km (0.107 R)
• M11: 6,653,365 km (0.062 R)
• M12: 7,981,944 km (0.105 R)
• M13: 8,357,435 km (0.041 R)
• M14: 13,588,723 km (0.075 R)
• M15: 14,725,218 km (0.078 R)
• M16: 15,395,117 km (0.07 R)
• M17: 16,031,207 km (0.116 R)
• M18: 16,464,891 km (0.083 R)
• M19: 16,740,002 km (0.052 R)
• M20: 17,986,900 km (0.083 R)
• M21: 21,308,272 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 194.1

Radius: 4.3

Gravity: 10.5 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 5.69 AU - 9.03 AU

Year: 13543 Days

Day: 22.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 57,386,593 km

• M1: 66,122 km (0.076 R)
• M2: 211,083 km (0.082 R)
• M3: 435,928 km (0.11 R)
• M4: 972,835 km (0.116 R)
• M5: 1,302,698 km (0.098 R)
• M6: 2,132,069 km (0.102 R)
• M7: 2,966,227 km (0.064 R)
• M8: 3,221,141 km (0.09 R)
• M9: 3,513,755 km (0.067 R)
• M10: 4,721,159 km (0.038 R)
• M11: 5,340,794 km (0.096 R)
• M12: 7,718,652 km (0.097 R)
• M13: 9,005,193 km (0.118 R)
• M14: 11,017,135 km (0.086 R)
• M15: 11,836,632 km (0.041 R)
• M16: 12,207,485 km (0.106 R)
• M17: 18,883,889 km (0.11 R)
• M18: 19,683,489 km (0.087 R)
• M19: 25,482,800 km (0.099 R)
• M20: 26,100,939 km (0.049 R)
• M21: 27,275,133 km (0.084 R)
• M22: 30,020,553 km (0.068 R)
• M23: 31,915,808 km (0.116 R)
• M24: 37,394,531 km (0.067 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 625.5

Radius: 4.3

Gravity: 33.83 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 5.87 AU - 8.97 AU

Year: 13709 Days

Day: 21.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,386,593 km

• M1: 53,706 km (0.092 R)
• M2: 311,014 km (0.101 R)
• M3: 554,709 km (0.106 R)
• M4: 836,252 km (0.076 R)
• M5: 1,712,447 km (0.095 R)
• M6: 1,949,859 km (0.116 R)
• M7: 3,778,094 km (0.116 R)
• M8: 6,473,698 km (0.064 R)
• M9: 7,748,571 km (0.107 R)
• M10: 18,887,928 km (0.053 R)
• M11: 19,887,840 km (0.037 R)
• M12: 22,818,462 km (0.091 R)
• M13: 26,126,071 km (0.077 R)
• M14: 31,780,871 km (0.103 R)
• M15: 38,462,211 km (0.116 R)
• M16: 40,607,893 km (0.103 R)
• M17: 44,698,049 km (0.118 R)
• M18: 53,849,998 km (0.108 R)
• M19: 56,021,560 km (0.086 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 195 - 12,204 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit