🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 896.1

Radius: 13

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.45 AU - 0.59 AU

Year: 264 Days

Day: 5.7 Hours

Environment

Temp: -145 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 15,897,520 km

• M1: 161,715 km (0.114 R)
• M2: 581,038 km (0.062 R)
• M3: 1,009,187 km (0.041 R)
• M4: 1,497,475 km (0.071 R)
• M5: 1,985,014 km (0.027 R)
• M6: 2,569,792 km (0.1 R)
• M7: 3,031,900 km (0.1 R)
• M8: 3,439,405 km (0.036 R)
• M9: 3,907,646 km (0.081 R)
• M10: 4,496,762 km (0.039 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 826.3

Radius: 12.6

Gravity: 5.2 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.45 AU - 0.73 AU

Year: 319 Days

Day: 6.7 Hours

Environment

Temp: -148 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 15,897,520 km

• M1: 156,779 km (0.108 R)
• M2: 565,929 km (0.094 R)
• M3: 1,039,107 km (0.078 R)
• M4: 1,528,142 km (0.048 R)
• M5: 2,278,974 km (0.027 R)
• M6: 2,837,722 km (0.098 R)
• M7: 3,263,627 km (0.052 R)
• M8: 4,609,709 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 333.7

Radius: 9.2

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.56 AU - 0.88 AU

Year: 429 Days

Day: 6.2 Hours

Environment

Temp: -154 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 15,897,520 km

• M1: 115,490 km (0.1 R)
• M2: 425,307 km (0.029 R)
• M3: 1,012,778 km (0.082 R)
• M4: 1,446,911 km (0.113 R)
• M5: 1,883,587 km (0.025 R)
• M6: 3,230,416 km (0.074 R)
• M7: 3,933,227 km (0.057 R)
• M8: 4,346,865 km (0.037 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199.3

Radius: 9.3

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.72 AU - 0.84 AU

Year: 484 Days

Day: 12.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 15,897,520 km

• M1: 116,686 km (0.057 R)
• M2: 517,758 km (0.093 R)
• M3: 851,960 km (0.104 R)
• M4: 1,227,151 km (0.111 R)
• M5: 1,731,895 km (0.106 R)
• M6: 2,232,748 km (0.062 R)
• M7: 3,028,310 km (0.114 R)
• M8: 3,884,458 km (0.079 R)
• M9: 4,195,023 km (0.058 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 867.6

Radius: 11.2

Gravity: 6.92 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.8 AU - 1.1 AU

Year: 651 Days

Day: 5.9 Hours

Environment

Temp: -172 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 15,897,520 km

• M1: 139,276 km (0.057 R)
• M2: 574,456 km (0.039 R)
• M3: 1,489,845 km (0.105 R)
• M4: 1,851,423 km (0.069 R)
• M5: 2,395,062 km (0.1 R)
• M6: 2,791,646 km (0.041 R)
• M7: 3,155,617 km (0.063 R)
• M8: 3,819,234 km (0.098 R)
• M9: 4,508,581 km (0.116 R)
• M10: 4,995,522 km (0.109 R)
• M11: 5,461,669 km (0.086 R)
• M12: 6,215,492 km (0.077 R)
• M13: 7,081,365 km (0.093 R)
• M14: 8,268,274 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.7

Radius: 10.6

Gravity: 7.75 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.14 AU - 1.2 AU

Year: 890 Days

Day: 10.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 15,897,520 km

• M1: 131,945 km (0.073 R)
• M2: 479,312 km (0.086 R)
• M3: 1,340,995 km (0.05 R)
• M4: 1,696,141 km (0.034 R)
• M5: 2,508,008 km (0.082 R)
• M6: 3,287,413 km (0.087 R)
• M7: 5,149,308 km (0.097 R)
• M8: 5,580,749 km (0.033 R)
• M9: 6,471,903 km (0.095 R)
• M10: 7,069,547 km (0.104 R)
• M11: 7,406,291 km (0.097 R)
• M12: 8,807,425 km (0.107 R)
• M13: 9,311,570 km (0.11 R)
• M14: 10,164,278 km (0.104 R)

Asteroid Belt

Center: 1.96 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 243.2

Radius: 12.6

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.25 AU - 3.25 AU

Year: 3206 Days

Day: 13.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 15,897,520 km

• M1: 156,779 km (0.099 R)
• M2: 552,615 km (0.104 R)
• M3: 1,069,026 km (0.101 R)
• M4: 1,515,875 km (0.111 R)
• M5: 1,997,281 km (0.118 R)
• M6: 2,408,526 km (0.087 R)
• M7: 2,891,577 km (0.105 R)
• M8: 3,505,976 km (0.109 R)
• M9: 5,578,953 km (0.099 R)
• M10: 6,355,965 km (0.059 R)
• M11: 7,231,561 km (0.094 R)
• M12: 8,521,992 km (0.087 R)
• M13: 9,124,573 km (0.108 R)
• M14: 10,064,346 km (0.069 R)
• M15: 10,956,997 km (0.118 R)
• M16: 12,493,965 km (0.047 R)
• M17: 13,189,147 km (0.079 R)
• M18: 13,652,451 km (0.082 R)
• M19: 14,170,359 km (0.082 R)
• M20: 15,108,338 km (0.027 R)
• M21: 15,897,467 km (0.066 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: 503 - 16,259 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit