🌌 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: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308.4

Radius: 11.4

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.62 AU - 0.82 AU

Year: 422 Days

Day: 9.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 33,432,644 km

• M1: 141,819 km (0.116 R)
• M2: 496,515 km (0.101 R)
• M3: 923,168 km (0.109 R)
• M4: 1,319,752 km (0.104 R)
• M5: 1,831,976 km (0.074 R)
• M6: 2,186,672 km (0.11 R)
• M7: 2,760,230 km (0.113 R)
• M8: 3,421,303 km (0.032 R)
• M9: 4,148,050 km (0.038 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 525.5

Radius: 14.7

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.66 AU - 0.86 AU

Year: 457 Days

Day: 5.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 33,432,644 km

• M1: 182,809 km (0.093 R)
• M2: 677,529 km (0.097 R)
• M3: 1,292,077 km (0.066 R)
• M4: 1,920,089 km (0.079 R)
• M5: 2,463,877 km (0.055 R)
• M6: 3,121,659 km (0.091 R)
• M7: 3,672,029 km (0.075 R)
• M8: 4,166,749 km (0.106 R)
• M9: 4,778,754 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.1

Radius: 11.1

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.8 AU - 0.92 AU

Year: 551 Days

Day: 14.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 33,432,644 km

• M1: 139,126 km (0.114 R)
• M2: 669,750 km (0.078 R)
• M3: 1,113,307 km (0.084 R)
• M4: 1,764,058 km (0.112 R)
• M5: 2,521,472 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 312.2

Radius: 14

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.8 AU - 0.98 AU

Year: 580 Days

Day: 10.8 Hours

Environment

Temp: -165 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 33,432,644 km

• M1: 174,132 km (0.111 R)
• M2: 705,204 km (0.116 R)
• M3: 1,289,833 km (0.108 R)
• M4: 2,113,369 km (0.071 R)
• M5: 2,674,212 km (0.056 R)
• M6: 4,660,572 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 739

Radius: 13.2

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.92 AU - 1.14 AU

Year: 722 Days

Day: 14 Hours

Environment

Temp: -178 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 33,432,644 km

• M1: 164,109 km (0.088 R)
• M2: 652,247 km (0.111 R)
• M3: 1,065,436 km (0.107 R)
• M4: 1,592,769 km (0.107 R)
• M5: 2,042,310 km (0.1 R)
• M6: 2,768,458 km (0.101 R)
• M7: 3,283,075 km (0.078 R)
• M8: 3,817,887 km (0.105 R)
• M9: 4,754,669 km (0.113 R)
• M10: 5,206,006 km (0.113 R)
• M11: 5,628,919 km (0.119 R)
• M12: 6,075,020 km (0.097 R)
• M13: 7,104,702 km (0.119 R)
• M14: 7,650,136 km (0.027 R)
• M15: 8,247,779 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497.7

Radius: 12.9

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 3.66 AU - 3.98 AU

Year: 5154 Days

Day: 10.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 33,432,644 km

• M1: 161,416 km (0.104 R)
• M2: 667,057 km (0.049 R)
• M3: 1,088,474 km (0.111 R)
• M4: 1,659,639 km (0.086 R)
• M5: 2,274,486 km (0.047 R)
• M6: 3,019,633 km (0.086 R)
• M7: 3,440,153 km (0.112 R)
• M8: 4,010,270 km (0.042 R)
• M9: 4,569,467 km (0.071 R)
• M10: 5,932,004 km (0.082 R)
• M11: 6,851,433 km (0.118 R)
• M12: 7,899,067 km (0.111 R)
• M13: 8,781,245 km (0.096 R)
• M14: 9,325,632 km (0.115 R)
• M15: 10,353,669 km (0.093 R)
• M16: 11,319,772 km (0.082 R)
• M17: 12,344,816 km (0.103 R)
• M18: 13,228,940 km (0.087 R)
• M19: 15,849,745 km (0.117 R)
• M20: 16,834,847 km (0.095 R)
• M21: 17,372,801 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 177.3

Radius: 8

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 3.78 AU - 4.14 AU

Year: 5439 Days

Day: 9.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,432,644 km

• M1: 99,483 km (0.096 R)
• M2: 1,150,707 km (0.098 R)
• M3: 2,175,751 km (0.052 R)
• M4: 3,201,245 km (0.116 R)
• M5: 4,585,025 km (0.12 R)
• M6: 5,164,418 km (0.085 R)
• M7: 8,307,619 km (0.098 R)
• M8: 8,991,281 km (0.115 R)
• M9: 10,904,189 km (0.113 R)
• M10: 13,028,329 km (0.12 R)
• M11: 17,193,433 km (0.052 R)
• M12: 17,853,010 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 96

Radius: 5.4

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 6.71 AU - 9.25 AU

Year: 15560 Days

Day: 24.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,432,644 km

• M1: 67,319 km (0.042 R)
• M2: 467,793 km (0.094 R)
• M3: 702,212 km (0.091 R)
• M4: 1,332,767 km (0.09 R)
• M5: 1,547,291 km (0.045 R)
• M6: 3,107,597 km (0.105 R)
• M7: 4,089,557 km (0.072 R)
• M8: 4,415,531 km (0.107 R)
• M9: 5,648,666 km (0.037 R)
• M10: 5,958,184 km (0.073 R)
• M11: 6,443,330 km (0.12 R)
• M12: 6,989,661 km (0.043 R)
• M13: 14,256,079 km (0.082 R)
• M14: 16,832,004 km (0.091 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: 229 - 10,563 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit