🌌 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: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 399

Radius: 13

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.66 AU - 0.76 AU

Year: 399 Days

Day: 14.1 Hours

Environment

Temp: -163 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 36,467,958 km

• M1: 182,360 km (0.08 R)
• M2: 589,565 km (0.105 R)
• M3: 1,344,436 km (0.091 R)
• M4: 1,859,950 km (0.06 R)
• M5: 2,533,141 km (0.114 R)
• M6: 3,539,486 km (0.075 R)
• M7: 4,042,434 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.2

Radius: 9.1

Gravity: 8.24 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.73 AU - 0.81 AU

Year: 451 Days

Day: 14.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,467,958 km

• M1: 113,246 km (0.079 R)
• M2: 538,253 km (0.11 R)
• M3: 888,312 km (0.11 R)
• M4: 1,334,712 km (0.078 R)
• M5: 1,761,814 km (0.03 R)
• M6: 2,075,670 km (0.114 R)
• M7: 2,881,853 km (0.099 R)
• M8: 3,440,901 km (0.092 R)
• M9: 3,727,381 km (0.098 R)
• M10: 4,084,171 km (0.076 R)
• M11: 4,790,273 km (0.067 R)
• M12: 5,508,194 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652.5

Radius: 14.2

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.7 AU - 1.02 AU

Year: 532 Days

Day: 10 Hours

Environment

Temp: -168 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 36,467,958 km

• M1: 176,675 km (0.045 R)
• M2: 624,122 km (0.1 R)
• M3: 1,105,528 km (0.077 R)
• M4: 2,060,411 km (0.096 R)
• M5: 3,365,802 km (0.113 R)
• M6: 4,066,519 km (0.1 R)
• M7: 4,973,531 km (0.094 R)
• M8: 6,232,098 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349.3

Radius: 12.7

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.86 AU - 0.94 AU

Year: 569 Days

Day: 11.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,467,958 km

• M1: 157,975 km (0.093 R)
• M2: 598,990 km (0.047 R)
• M3: 1,030,281 km (0.114 R)
• M4: 1,483,861 km (0.104 R)
• M5: 2,047,696 km (0.101 R)
• M6: 2,500,977 km (0.09 R)
• M7: 3,195,710 km (0.068 R)
• M8: 4,002,940 km (0.077 R)
• M9: 4,575,451 km (0.103 R)
• M10: 5,017,363 km (0.118 R)
• M11: 5,536,468 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534.7

Radius: 9.1

Gravity: 6.46 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.84 AU - 1.08 AU

Year: 627 Days

Day: 7.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,467,958 km

• M1: 117,285 km (0.073 R)
• M2: 592,557 km (0.065 R)
• M3: 1,082,490 km (0.113 R)
• M4: 1,443,619 km (0.05 R)
• M5: 1,876,406 km (0.091 R)
• M6: 2,258,778 km (0.092 R)
• M7: 2,556,029 km (0.114 R)
• M8: 3,098,322 km (0.119 R)
• M9: 3,864,711 km (0.097 R)
• M10: 4,994,175 km (0.089 R)
• M11: 5,329,424 km (0.116 R)
• M12: 5,626,376 km (0.068 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 307

Radius: 12.9

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 3.68 AU - 4.48 AU

Year: 5496 Days

Day: 6 Hours

Environment

Temp: -216 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,467,958 km

• M1: 161,416 km (0.091 R)
• M2: 652,396 km (0.09 R)
• M3: 1,725,312 km (0.073 R)
• M4: 2,448,468 km (0.115 R)
• M5: 2,949,920 km (0.048 R)
• M6: 3,698,508 km (0.093 R)
• M7: 4,162,262 km (0.073 R)
• M8: 5,875,606 km (0.104 R)
• M9: 6,510,051 km (0.039 R)
• M10: 7,383,403 km (0.11 R)
• M11: 12,726,141 km (0.045 R)
• M12: 13,641,680 km (0.098 R)
• M13: 15,176,106 km (0.08 R)
• M14: 16,936,723 km (0.099 R)
• M15: 18,646,477 km (0.106 R)
• M16: 20,018,289 km (0.09 R)
• M17: 23,314,230 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 87.6

Radius: 12.1

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 4.65 AU - 5.13 AU

Year: 7211 Days

Day: 5 Hours

Environment

Temp: -217 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,467,958 km

• M1: 164,558 km (0.081 R)
• M2: 1,041,949 km (0.08 R)
• M3: 1,747,453 km (0.103 R)
• M4: 2,389,826 km (0.103 R)
• M5: 3,444,491 km (0.054 R)
• M6: 3,851,996 km (0.103 R)
• M7: 5,791,532 km (0.083 R)
• M8: 6,591,133 km (0.09 R)
• M9: 7,927,042 km (0.104 R)
• M10: 8,443,154 km (0.12 R)
• M11: 10,090,227 km (0.106 R)
• M12: 11,530,405 km (0.058 R)
• M13: 12,025,724 km (0.08 R)
• M14: 14,338,358 km (0.08 R)
• M15: 15,400,802 km (0.102 R)
• M16: 17,466,000 km (0.114 R)
• M17: 18,733,842 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 71.2

Radius: 7.7

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 9.58 AU - 10.1 AU

Year: 20584 Days

Day: 16.2 Hours

Environment

Temp: -242 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,467,958 km

• M1: 95,892 km (0.084 R)
• M2: 1,276,519 km (0.101 R)
• M3: 1,563,447 km (0.095 R)
• M4: 2,676,605 km (0.07 R)
• M5: 6,347,438 km (0.104 R)
• M6: 7,834,889 km (0.107 R)
• M7: 10,986,318 km (0.073 R)
• M8: 17,960,720 km (0.081 R)
• M9: 18,788,296 km (0.088 R)
• M10: 23,636,314 km (0.08 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 527 - 11,893 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit