🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146

Radius: 9.5

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.58 AU - 0.62 AU

Year: 315 Days

Day: 7.6 Hours

Environment

Temp: -140 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 34,065,661 km

• M1: 118,182 km (0.1 R)
• M2: 421,118 km (0.069 R)
• M3: 975,528 km (0.099 R)
• M4: 1,393,055 km (0.08 R)
• M5: 1,782,459 km (0.096 R)
• M6: 2,393,117 km (0.098 R)
• M7: 2,735,696 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719.6

Radius: 12

Gravity: 5 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.68 AU - 0.92 AU

Year: 485 Days

Day: 8.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 34,065,661 km

• M1: 149,299 km (0.093 R)
• M2: 592,258 km (0.115 R)
• M3: 1,014,423 km (0.112 R)
• M4: 1,503,758 km (0.055 R)
• M5: 1,880,595 km (0.111 R)
• M6: 2,378,157 km (0.054 R)
• M7: 3,201,544 km (0.118 R)
• M8: 3,603,364 km (0.113 R)
• M9: 4,334,449 km (0.054 R)
• M10: 4,828,421 km (0.097 R)
• M11: 5,718,079 km (0.1 R)
• M12: 6,332,328 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.5

Radius: 12.4

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.24 AU - 1.28 AU

Year: 959 Days

Day: 7.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 34,065,661 km

• M1: 156,180 km (0.08 R)
• M2: 648,656 km (0.108 R)
• M3: 1,060,799 km (0.117 R)
• M4: 1,569,431 km (0.088 R)
• M5: 2,114,416 km (0.086 R)
• M6: 2,670,621 km (0.119 R)
• M7: 3,945,943 km (0.12 R)
• M8: 4,499,306 km (0.036 R)
• M9: 5,174,441 km (0.041 R)
• M10: 5,705,364 km (0.094 R)
• M11: 6,152,212 km (0.097 R)
• M12: 6,559,567 km (0.11 R)
• M13: 6,985,024 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 186.8

Radius: 8.9

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.65 AU - 1.75 AU

Year: 1503 Days

Day: 6.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 34,065,661 km

• M1: 110,852 km (0.117 R)
• M2: 849,866 km (0.12 R)
• M3: 1,163,123 km (0.051 R)
• M4: 1,994,439 km (0.112 R)
• M5: 2,332,530 km (0.091 R)
• M6: 2,708,918 km (0.117 R)
• M7: 3,036,388 km (0.098 R)
• M8: 3,612,789 km (0.12 R)
• M9: 4,103,320 km (0.052 R)
• M10: 5,327,779 km (0.098 R)
• M11: 5,964,018 km (0.103 R)
• M12: 7,764,129 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.2

Radius: 10.2

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.64 AU - 2.04 AU

Year: 1693 Days

Day: 14 Hours

Environment

Temp: -201 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 34,065,661 km

• M1: 127,009 km (0.12 R)
• M2: 507,286 km (0.088 R)
• M3: 841,338 km (0.072 R)
• M4: 1,162,076 km (0.082 R)
• M5: 1,522,158 km (0.101 R)
• M6: 1,978,731 km (0.091 R)
• M7: 3,768,969 km (0.032 R)
• M8: 5,619,644 km (0.112 R)
• M9: 6,070,981 km (0.113 R)
• M10: 6,843,205 km (0.109 R)
• M11: 7,305,612 km (0.083 R)
• M12: 7,843,865 km (0.09 R)
• M13: 9,970,698 km (0.067 R)
• M14: 11,254,697 km (0.119 R)
• M15: 12,531,814 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 896

Radius: 13.9

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 2.17 AU - 2.31 AU

Year: 2274 Days

Day: 5.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 34,065,661 km

• M1: 173,234 km (0.035 R)
• M2: 674,836 km (0.087 R)
• M3: 1,145,321 km (0.036 R)
• M4: 2,119,054 km (0.118 R)
• M5: 2,816,778 km (0.099 R)
• M6: 3,719,901 km (0.089 R)
• M7: 4,270,720 km (0.116 R)
• M8: 5,464,062 km (0.115 R)
• M9: 6,984,276 km (0.092 R)
• M10: 7,549,157 km (0.119 R)
• M11: 8,569,564 km (0.11 R)
• M12: 9,252,778 km (0.073 R)
• M13: 9,861,940 km (0.066 R)
• M14: 13,318,698 km (0.116 R)
• M15: 15,442,689 km (0.12 R)
• M16: 16,926,101 km (0.06 R)
• M17: 18,168,661 km (0.06 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751

Radius: 13.8

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.25 AU - 2.43 AU

Year: 2428 Days

Day: 11.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 34,065,661 km

• M1: 171,888 km (0.097 R)
• M2: 636,539 km (0.1 R)
• M3: 1,113,906 km (0.092 R)
• M4: 1,614,460 km (0.091 R)
• M5: 2,227,662 km (0.075 R)
• M6: 2,898,758 km (0.068 R)
• M7: 3,537,391 km (0.054 R)
• M8: 4,027,474 km (0.078 R)
• M9: 4,961,114 km (0.115 R)
• M10: 6,245,412 km (0.093 R)
• M11: 8,213,970 km (0.116 R)
• M12: 9,642,181 km (0.088 R)
• M13: 10,529,446 km (0.09 R)
• M14: 11,714,411 km (0.093 R)
• M15: 12,898,927 km (0.055 R)
• M16: 15,406,636 km (0.057 R)
• M17: 15,854,233 km (0.119 R)
• M18: 16,567,815 km (0.094 R)
• M19: 17,409,303 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 562.3

Radius: 13.7

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 3.04 AU - 5.06 AU

Year: 5528 Days

Day: 12.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 34,065,661 km

• M1: 170,392 km (0.05 R)
• M2: 698,772 km (0.063 R)
• M3: 2,227,064 km (0.045 R)
• M4: 3,039,380 km (0.095 R)
• M5: 3,621,016 km (0.116 R)
• M6: 5,198,975 km (0.029 R)
• M7: 8,124,511 km (0.094 R)
• M8: 14,380,544 km (0.046 R)
• M9: 16,563,177 km (0.097 R)
• M10: 21,433,186 km (0.119 R)
• M11: 21,938,229 km (0.118 R)
• M12: 26,599,549 km (0.105 R)
• M13: 29,160,963 km (0.117 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 691.4

Radius: 12.7

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 3.77 AU - 4.75 AU

Year: 5964 Days

Day: 5.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 34,065,661 km

• M1: 157,975 km (0.088 R)
• M2: 620,831 km (0.058 R)
• M3: 1,037,312 km (0.094 R)
• M4: 1,861,596 km (0.077 R)
• M5: 2,377,260 km (0.055 R)
• M6: 4,220,904 km (0.114 R)
• M7: 5,092,611 km (0.119 R)
• M8: 5,677,090 km (0.094 R)
• M9: 6,671,616 km (0.106 R)
• M10: 7,666,592 km (0.083 R)
• M11: 8,356,986 km (0.102 R)
• M12: 14,009,841 km (0.071 R)
• M13: 15,457,649 km (0.103 R)
• M14: 16,560,335 km (0.048 R)
• M15: 19,059,517 km (0.079 R)
• M16: 20,040,580 km (0.068 R)
• M17: 23,661,147 km (0.089 R)
• M18: 25,207,690 km (0.048 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 286 - 14,881 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit