🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.44

Radius: 0.72

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.5 AU - 0.82 AU

Year: 352 Days

Day: 34.2 Hours

Environment

Temp: -125 °C

Axial Tilt: 28.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 925.1

Radius: 14.5

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.87 AU - 1.11 AU

Year: 646 Days

Day: 11.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 73,359,763 km

• M1: 180,415 km (0.114 R)
• M2: 755,918 km (0.075 R)
• M3: 1,249,441 km (0.076 R)
• M4: 2,066,695 km (0.072 R)
• M5: 2,603,302 km (0.101 R)
• M6: 3,376,125 km (0.097 R)
• M7: 3,919,315 km (0.042 R)
• M8: 4,569,467 km (0.055 R)
• M9: 7,094,829 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 732.2

Radius: 13.4

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.65 AU - 1.91 AU

Year: 1558 Days

Day: 11.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,359,763 km

• M1: 166,652 km (0.03 R)
• M2: 626,217 km (0.102 R)
• M3: 1,118,992 km (0.079 R)
• M4: 1,994,140 km (0.108 R)
• M5: 3,017,539 km (0.086 R)
• M6: 3,639,716 km (0.109 R)
• M7: 4,460,261 km (0.099 R)
• M8: 5,122,231 km (0.039 R)
• M9: 6,976,048 km (0.045 R)
• M10: 9,117,242 km (0.115 R)
• M11: 10,423,531 km (0.118 R)
• M12: 12,113,837 km (0.117 R)

Planet 4 - Ice Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 619.2

Radius: 5.6

Gravity: 19.74 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 7.65 AU - 9.79 AU

Year: 16892 Days

Day: 20.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 73,359,763 km

• M1: 69,713 km (0.114 R)
• M2: 343,626 km (0.057 R)
• M3: 660,624 km (0.109 R)
• M4: 1,347,877 km (0.091 R)
• M5: 2,386,834 km (0.095 R)
• M6: 3,032,349 km (0.026 R)
• M7: 4,464,300 km (0.1 R)
• M8: 4,729,237 km (0.114 R)
• M9: 4,969,492 km (0.11 R)
• M10: 6,672,065 km (0.081 R)
• M11: 7,890,240 km (0.084 R)
• M12: 9,144,020 km (0.067 R)
• M13: 11,295,537 km (0.104 R)
• M14: 12,103,066 km (0.069 R)
• M15: 12,948,294 km (0.105 R)
• M16: 14,182,776 km (0.094 R)
• M17: 15,344,104 km (0.092 R)
• M18: 15,568,800 km (0.119 R)
• M19: 17,937,233 km (0.085 R)
• M20: 18,270,238 km (0.086 R)
• M21: 19,468,069 km (0.076 R)
• M22: 21,735,523 km (0.077 R)
• M23: 24,681,704 km (0.078 R)
• M24: 27,883,547 km (0.06 R)
• M25: 29,468,237 km (0.102 R)
• M26: 33,943,607 km (0.098 R)
• M27: 38,436,929 km (0.093 R)
• M28: 41,837,139 km (0.055 R)
• M29: 45,432,425 km (0.077 R)
• M30: 49,390,934 km (0.082 R)
• M31: 56,726,615 km (0.106 R)
• M32: 59,816,409 km (0.056 R)
• M33: 60,001,462 km (0.09 R)
• M34: 63,016,457 km (0.058 R)
• M35: 63,208,092 km (0.113 R)
• M36: 65,146,731 km (0.111 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 806.7

Radius: 3.1

Gravity: 83.94 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 7.85 AU - 9.97 AU

Year: 17447 Days

Day: 16.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 73,359,763 km

• M1: 39,943 km (0.096 R)
• M2: 168,447 km (0.109 R)
• M3: 829,969 km (0.111 R)
• M4: 1,434,195 km (0.106 R)
• M5: 1,826,740 km (0.115 R)
• M6: 2,180,838 km (0.113 R)
• M7: 2,330,286 km (0.054 R)
• M8: 3,102,061 km (0.104 R)
• M9: 3,459,451 km (0.063 R)
• M10: 3,752,513 km (0.113 R)
• M11: 4,421,365 km (0.106 R)
• M12: 4,557,350 km (0.106 R)
• M13: 4,801,792 km (0.116 R)
• M14: 5,091,863 km (0.11 R)
• M15: 8,507,182 km (0.08 R)
• M16: 8,612,050 km (0.091 R)
• M17: 10,709,113 km (0.049 R)
• M18: 10,892,670 km (0.118 R)
• M19: 11,392,626 km (0.069 R)
• M20: 11,712,765 km (0.071 R)
• M21: 12,777,453 km (0.038 R)
• M22: 15,097,118 km (0.1 R)
• M23: 18,285,198 km (0.08 R)
• M24: 18,635,407 km (0.097 R)
• M25: 18,812,231 km (0.1 R)
• M26: 21,118,133 km (0.078 R)
• M27: 21,893,948 km (0.115 R)
• M28: 24,865,709 km (0.099 R)
• M29: 29,509,826 km (0.098 R)
• M30: 34,036,508 km (0.089 R)
• M31: 42,724,853 km (0.086 R)
• M32: 43,807,492 km (0.089 R)
• M33: 48,154,507 km (0.089 R)
• M34: 53,489,766 km (0.104 R)
• M35: 55,109,312 km (0.103 R)
• M36: 55,473,583 km (0.104 R)
• M37: 61,522,872 km (0.058 R)
• M38: 63,100,980 km (0.073 R)
• M39: 66,132,432 km (0.115 R)
• M40: 66,956,865 km (0.112 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: 553 - 18,949 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit