🌌 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: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 60.5

Radius: 9.3

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.54 AU - 0.74 AU

Year: 347 Days

Day: 10.4 Hours

Environment

Temp: -143 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 32,352,510 km

• M1: 115,639 km (0.108 R)
• M2: 413,638 km (0.073 R)
• M3: 910,602 km (0.12 R)
• M4: 1,585,289 km (0.054 R)
• M5: 2,252,794 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801

Radius: 14.1

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.94 AU - 1.24 AU

Year: 772 Days

Day: 13.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,352,510 km

• M1: 175,329 km (0.099 R)
• M2: 660,325 km (0.101 R)
• M3: 1,270,984 km (0.084 R)
• M4: 1,777,671 km (0.082 R)
• M5: 2,420,494 km (0.103 R)
• M6: 3,176,711 km (0.092 R)
• M7: 3,668,439 km (0.118 R)
• M8: 4,354,944 km (0.107 R)
• M9: 5,198,975 km (0.092 R)
• M10: 5,906,573 km (0.077 R)
• M11: 7,801,080 km (0.039 R)
• M12: 9,047,230 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40.3

Radius: 9.4

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.51 AU - 2.51 AU

Year: 1933 Days

Day: 14.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 32,352,510 km

• M1: 116,986 km (0.116 R)
• M2: 876,644 km (0.119 R)
• M3: 2,232,449 km (0.11 R)
• M4: 2,625,143 km (0.059 R)
• M5: 3,097,723 km (0.063 R)
• M6: 3,638,819 km (0.112 R)
• M7: 4,157,624 km (0.101 R)
• M8: 5,612,164 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.4

Radius: 12.1

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 3.85 AU - 6.17 AU

Year: 7606 Days

Day: 9 Hours

Environment

Temp: -222 °C

Axial Tilt: 96.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,352,510 km

• M1: 151,842 km (0.09 R)
• M2: 581,637 km (0.105 R)
• M3: 1,296,565 km (0.086 R)
• M4: 2,801,220 km (0.11 R)
• M5: 5,224,257 km (0.104 R)
• M6: 5,617,998 km (0.062 R)
• M7: 9,565,288 km (0.066 R)
• M8: 11,090,438 km (0.113 R)
• M9: 13,437,928 km (0.027 R)
• M10: 16,099,274 km (0.102 R)
• M11: 18,185,117 km (0.028 R)
• M12: 23,036,277 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 15.7

Radius: 10.5

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 4.99 AU - 5.03 AU

Year: 7606 Days

Day: 8.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 32,352,510 km

• M1: 139,575 km (0.1 R)
• M2: 501,452 km (0.1 R)
• M3: 2,387,283 km (0.102 R)
• M4: 3,879,073 km (0.1 R)
• M5: 5,330,471 km (0.09 R)
• M6: 5,850,773 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 69.6

Radius: 12.6

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 4.85 AU - 5.36 AU

Year: 7812 Days

Day: 5.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,352,510 km

• M1: 156,779 km (0.065 R)
• M2: 722,707 km (0.042 R)
• M3: 1,663,080 km (0.083 R)
• M4: 2,185,924 km (0.072 R)
• M5: 4,640,825 km (0.066 R)
• M6: 5,815,468 km (0.117 R)
• M7: 6,777,532 km (0.082 R)
• M8: 9,789,984 km (0.114 R)
• M9: 10,492,795 km (0.076 R)
• M10: 13,375,994 km (0.077 R)
• M11: 13,964,363 km (0.115 R)
• M12: 18,802,807 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 76.7

Radius: 5.9

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 7.83 AU - 9.01 AU

Year: 16571 Days

Day: 20.7 Hours

Environment

Temp: -242 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,352,510 km

• M1: 82,279 km (0.092 R)
• M2: 471,233 km (0.074 R)
• M3: 877,092 km (0.115 R)
• M4: 1,243,906 km (0.077 R)
• M5: 1,529,788 km (0.073 R)
• M6: 1,761,964 km (0.068 R)
• M7: 3,215,307 km (0.086 R)
• M8: 3,532,754 km (0.064 R)
• M9: 6,241,971 km (0.066 R)
• M10: 6,635,713 km (0.083 R)
• M11: 6,872,825 km (0.077 R)
• M12: 7,766,373 km (0.096 R)
• M13: 8,694,778 km (0.098 R)
• M14: 8,897,184 km (0.073 R)
• M15: 10,585,396 km (0.113 R)
• M16: 10,769,850 km (0.058 R)
• M17: 11,384,099 km (0.041 R)
• M18: 15,807,558 km (0.101 R)
• M19: 25,208,737 km (0.102 R)
• M20: 30,640,636 km (0.071 R)
• M21: 32,352,484 km (0.034 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 350 - 15,321 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit