🌌 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: 813.3

Radius: 8.3

Gravity: 11.81 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.54 AU - 0.66 AU

Year: 315 Days

Day: 12.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 38,050,378 km

• M1: 103,223 km (0.104 R)
• M2: 455,226 km (0.057 R)
• M3: 746,045 km (0.073 R)
• M4: 1,754,484 km (0.093 R)
• M5: 2,421,690 km (0.097 R)
• M6: 2,710,863 km (0.072 R)
• M7: 3,259,139 km (0.086 R)
• M8: 3,708,232 km (0.112 R)
• M9: 4,773,070 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 336

Radius: 12.6

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.79 AU - 1.13 AU

Year: 638 Days

Day: 8.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 38,050,378 km

• M1: 156,779 km (0.102 R)
• M2: 558,898 km (0.09 R)
• M3: 1,205,759 km (0.113 R)
• M4: 1,771,239 km (0.109 R)
• M5: 2,199,238 km (0.108 R)
• M6: 3,493,858 km (0.115 R)
• M7: 4,719,514 km (0.117 R)
• M8: 5,538,712 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.1

Radius: 8

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.9 AU - 1.2 AU

Year: 730 Days

Day: 14.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 38,050,378 km

• M1: 99,483 km (0.092 R)
• M2: 447,148 km (0.086 R)
• M3: 1,261,858 km (0.094 R)
• M4: 1,846,935 km (0.079 R)
• M5: 2,164,681 km (0.116 R)
• M6: 3,722,743 km (0.108 R)
• M7: 4,458,017 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.3

Radius: 13.4

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 2.28 AU - 3.02 AU

Year: 2926 Days

Day: 6.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 38,050,378 km

• M1: 166,652 km (0.083 R)
• M2: 610,659 km (0.118 R)
• M3: 1,298,061 km (0.118 R)
• M4: 2,322,657 km (0.119 R)
• M5: 3,394,824 km (0.112 R)
• M6: 3,907,496 km (0.072 R)
• M7: 4,599,686 km (0.097 R)
• M8: 5,444,615 km (0.097 R)
• M9: 10,828,343 km (0.084 R)
• M10: 14,696,644 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.6

Radius: 8.6

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 4.47 AU - 5.51 AU

Year: 7560 Days

Day: 12.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 38,050,378 km

• M1: 149,299 km (0.095 R)
• M2: 638,035 km (0.106 R)
• M3: 2,160,492 km (0.092 R)
• M4: 2,565,603 km (0.077 R)
• M5: 7,490,066 km (0.069 R)
• M6: 7,792,104 km (0.085 R)
• M7: 15,686,234 km (0.077 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 917

Radius: 6.2

Gravity: 23.86 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 5.83 AU - 8.39 AU

Year: 12859 Days

Day: 19 Hours

Environment

Temp: -228 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 38,050,378 km

• M1: 77,492 km (0.084 R)
• M2: 429,047 km (0.054 R)
• M3: 1,291,478 km (0.045 R)
• M4: 1,646,474 km (0.078 R)
• M5: 2,868,390 km (0.09 R)
• M6: 3,263,029 km (0.104 R)
• M7: 4,799,249 km (0.1 R)
• M8: 5,612,164 km (0.057 R)
• M9: 6,110,475 km (0.059 R)
• M10: 8,160,115 km (0.104 R)
• M11: 10,858,711 km (0.085 R)
• M12: 11,270,404 km (0.097 R)
• M13: 12,313,401 km (0.111 R)
• M14: 13,153,243 km (0.051 R)
• M15: 13,419,228 km (0.09 R)
• M16: 15,826,856 km (0.078 R)
• M17: 17,690,098 km (0.105 R)
• M18: 17,932,746 km (0.08 R)
• M19: 20,042,973 km (0.081 R)
• M20: 20,572,998 km (0.104 R)
• M21: 20,931,584 km (0.081 R)
• M22: 22,407,517 km (0.049 R)
• M23: 24,149,285 km (0.096 R)
• M24: 25,257,057 km (0.105 R)
• M25: 28,339,222 km (0.116 R)
• M26: 40,177,949 km (0.106 R)
• M27: 40,597,571 km (0.074 R)
• M28: 41,303,523 km (0.102 R)
• M29: 47,092,961 km (0.074 R)
• M30: 47,559,557 km (0.039 R)
• M31: 49,296,538 km (0.081 R)
• M32: 53,232,308 km (0.119 R)
• M33: 53,738,547 km (0.054 R)
• M34: 54,247,928 km (0.034 R)
• M35: 55,104,226 km (0.045 R)
• M36: 60,066,088 km (0.078 R)
• M37: 60,614,813 km (0.065 R)
• M38: 61,908,087 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 103.9

Radius: 7.2

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 8.79 AU - 9.11 AU

Year: 18160 Days

Day: 21.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 38,050,378 km

• M1: 108,907 km (0.09 R)
• M2: 647,759 km (0.08 R)
• M3: 986,897 km (0.088 R)
• M4: 2,255,786 km (0.108 R)
• M5: 3,784,527 km (0.104 R)
• M6: 5,066,132 km (0.12 R)
• M7: 5,488,895 km (0.058 R)
• M8: 6,268,450 km (0.086 R)
• M9: 7,806,914 km (0.084 R)
• M10: 8,412,636 km (0.103 R)
• M11: 8,705,998 km (0.107 R)
• M12: 9,136,690 km (0.079 R)
• M13: 13,504,649 km (0.049 R)
• M14: 19,966,080 km (0.09 R)
• M15: 21,019,997 km (0.105 R)
• M16: 29,842,382 km (0.034 R)
• M17: 32,328,848 km (0.1 R)
• M18: 34,950,102 km (0.05 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 505 - 11,709 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit