🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 973.1

Radius: 12.7

Gravity: 6.03 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.5 AU - 0.76 AU

Year: 345 Days

Day: 12.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 14,978,231 km

• M1: 158,125 km (0.1 R)
• M2: 634,295 km (0.078 R)
• M3: 1,057,059 km (0.09 R)
• M4: 1,546,692 km (0.098 R)
• M5: 2,129,077 km (0.117 R)
• M6: 2,605,696 km (0.052 R)
• M7: 3,581,074 km (0.101 R)
• M8: 4,668,950 km (0.118 R)
• M9: 5,385,523 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.6

Radius: 11.7

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.58 AU - 0.88 AU

Year: 431 Days

Day: 5.4 Hours

Environment

Temp: -161 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 14,978,231 km

• M1: 145,559 km (0.086 R)
• M2: 702,063 km (0.03 R)
• M3: 1,088,624 km (0.116 R)
• M4: 1,578,557 km (0.042 R)
• M5: 2,046,200 km (0.073 R)
• M6: 2,588,342 km (0.096 R)
• M7: 3,204,386 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 275.5

Radius: 12.4

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.68 AU - 0.82 AU

Year: 448 Days

Day: 8.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 14,978,231 km

• M1: 154,235 km (0.117 R)
• M2: 565,630 km (0.068 R)
• M3: 965,205 km (0.085 R)
• M4: 1,582,745 km (0.109 R)
• M5: 2,378,008 km (0.108 R)
• M6: 2,801,669 km (0.07 R)
• M7: 3,193,316 km (0.108 R)
• M8: 4,311,859 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 576.9

Radius: 9.6

Gravity: 6.26 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.8 AU - 1.22 AU

Year: 701 Days

Day: 7.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 14,978,231 km

• M1: 119,529 km (0.083 R)
• M2: 435,779 km (0.032 R)
• M3: 814,112 km (0.115 R)
• M4: 1,196,633 km (0.115 R)
• M5: 1,597,107 km (0.036 R)
• M6: 1,986,211 km (0.092 R)
• M7: 2,607,341 km (0.102 R)
• M8: 3,053,592 km (0.059 R)
• M9: 3,699,705 km (0.029 R)
• M10: 4,608,362 km (0.054 R)
• M11: 5,072,415 km (0.06 R)
• M12: 5,567,285 km (0.07 R)
• M13: 5,940,382 km (0.099 R)
• M14: 6,389,923 km (0.041 R)
• M15: 6,736,691 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907.1

Radius: 14.8

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.17 AU - 1.19 AU

Year: 885 Days

Day: 6 Hours

Environment

Temp: -188 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 14,978,231 km

• M1: 192,532 km (0.037 R)
• M2: 667,057 km (0.06 R)
• M3: 1,636,152 km (0.11 R)
• M4: 2,666,732 km (0.097 R)
• M5: 3,176,262 km (0.097 R)
• M6: 4,080,581 km (0.029 R)
• M7: 4,637,983 km (0.116 R)
• M8: 5,441,024 km (0.115 R)
• M9: 6,033,581 km (0.1 R)
• M10: 6,760,328 km (0.078 R)
• M11: 7,397,914 km (0.073 R)
• M12: 7,895,776 km (0.073 R)
• M13: 8,739,208 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 312.6

Radius: 9.5

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.58 AU - 2.74 AU

Year: 2995 Days

Day: 10.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 14,978,231 km

• M1: 119,379 km (0.079 R)
• M2: 791,522 km (0.037 R)
• M3: 1,307,336 km (0.053 R)
• M4: 1,966,015 km (0.114 R)
• M5: 2,306,350 km (0.113 R)
• M6: 2,982,832 km (0.113 R)
• M7: 5,576,261 km (0.119 R)
• M8: 5,987,804 km (0.117 R)
• M9: 7,489,169 km (0.103 R)
• M10: 8,705,250 km (0.108 R)
• M11: 13,696,134 km (0.106 R)
• M12: 14,046,043 km (0.081 R)
• M13: 15,178,499 km (0.087 R)
• M14: 16,079,078 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 21.8

Radius: 4.8

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 4.92 AU - 6.8 AU

Year: 9792 Days

Day: 19.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 143.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 14,978,231 km

• M1: 334,202 km (0.078 R)
• M2: 667,057 km (0.093 R)
• M3: 1,065,436 km (0.108 R)
• M4: 1,958,236 km (0.084 R)
• M5: 2,910,726 km (0.116 R)
• M6: 6,105,089 km (0.118 R)
• M7: 11,867,001 km (0.058 R)
• M8: 14,058,011 km (0.083 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 394 - 15,235 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit