🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282.3

Radius: 11.1

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.68 AU - 0.78 AU

Year: 403 Days

Day: 9.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 34,730,407 km

• M1: 144,063 km (0.069 R)
• M2: 614,847 km (0.049 R)
• M3: 1,013,526 km (0.085 R)
• M4: 1,440,777 km (0.087 R)
• M5: 2,068,789 km (0.115 R)
• M6: 2,618,262 km (0.118 R)
• M7: 3,429,681 km (0.059 R)
• M8: 3,780,039 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.9

Radius: 12.4

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.17 AU - 1.71 AU

Year: 1116 Days

Day: 9.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 34,730,407 km

• M1: 154,235 km (0.109 R)
• M2: 547,678 km (0.084 R)
• M3: 1,118,543 km (0.093 R)
• M4: 1,749,397 km (0.091 R)
• M5: 2,387,133 km (0.052 R)
• M6: 3,533,950 km (0.039 R)
• M7: 4,384,564 km (0.039 R)
• M8: 4,924,014 km (0.117 R)
• M9: 5,327,779 km (0.06 R)
• M10: 5,774,478 km (0.11 R)
• M11: 6,582,456 km (0.078 R)
• M12: 8,477,562 km (0.115 R)
• M13: 9,288,831 km (0.083 R)
• M14: 9,878,097 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.9

Radius: 11.6

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.16 AU - 1.8 AU

Year: 1163 Days

Day: 7.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 34,730,407 km

• M1: 144,212 km (0.111 R)
• M2: 562,488 km (0.109 R)
• M3: 923,168 km (0.107 R)
• M4: 1,316,910 km (0.071 R)
• M5: 1,746,106 km (0.076 R)
• M6: 2,258,479 km (0.085 R)
• M7: 2,797,031 km (0.117 R)
• M8: 3,350,843 km (0.106 R)
• M9: 3,779,889 km (0.071 R)
• M10: 4,593,851 km (0.116 R)
• M11: 5,015,717 km (0.1 R)
• M12: 5,756,676 km (0.108 R)
• M13: 6,504,067 km (0.059 R)
• M14: 6,969,316 km (0.089 R)
• M15: 7,648,191 km (0.061 R)
• M16: 8,192,279 km (0.074 R)
• M17: 8,682,660 km (0.079 R)
• M18: 9,220,166 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.8

Radius: 14.2

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 2.45 AU - 2.73 AU

Year: 2691 Days

Day: 10.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 126.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 34,730,407 km

• M1: 182,061 km (0.067 R)
• M2: 823,835 km (0.096 R)
• M3: 1,296,415 km (0.073 R)
• M4: 1,956,441 km (0.105 R)
• M5: 2,835,328 km (0.084 R)
• M6: 4,467,441 km (0.064 R)
• M7: 4,974,428 km (0.111 R)
• M8: 5,753,235 km (0.083 R)
• M9: 6,588,440 km (0.071 R)
• M10: 7,844,015 km (0.049 R)
• M11: 8,613,845 km (0.117 R)
• M12: 10,433,554 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.7

Radius: 12.6

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 2.29 AU - 3.67 AU

Year: 3322 Days

Day: 10.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 34,730,407 km

• M1: 156,779 km (0.106 R)
• M2: 566,527 km (0.101 R)
• M3: 1,220,868 km (0.12 R)
• M4: 1,690,755 km (0.11 R)
• M5: 2,137,903 km (0.111 R)
• M6: 2,604,948 km (0.04 R)
• M7: 3,040,726 km (0.094 R)
• M8: 4,307,371 km (0.058 R)
• M9: 5,370,713 km (0.104 R)
• M10: 5,977,632 km (0.096 R)
• M11: 7,389,536 km (0.11 R)
• M12: 8,044,775 km (0.096 R)
• M13: 10,706,271 km (0.106 R)
• M14: 14,188,760 km (0.096 R)
• M15: 15,500,284 km (0.057 R)
• M16: 16,732,821 km (0.108 R)
• M17: 18,140,537 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.5

Radius: 13.8

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 3.97 AU - 4.15 AU

Year: 5282 Days

Day: 8.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 34,730,407 km

• M1: 172,337 km (0.071 R)
• M2: 674,537 km (0.085 R)
• M3: 1,180,776 km (0.057 R)
• M4: 1,905,129 km (0.036 R)
• M5: 2,628,435 km (0.108 R)
• M6: 3,069,898 km (0.052 R)
• M7: 3,725,735 km (0.101 R)
• M8: 4,783,990 km (0.101 R)
• M9: 5,362,485 km (0.074 R)
• M10: 6,862,054 km (0.094 R)
• M11: 9,141,327 km (0.091 R)
• M12: 9,871,664 km (0.109 R)
• M13: 11,593,985 km (0.09 R)
• M14: 12,298,441 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.1

Radius: 10.7

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 4.99 AU - 5.91 AU

Year: 8215 Days

Day: 7.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 34,730,407 km

• M1: 133,142 km (0.073 R)
• M2: 611,406 km (0.098 R)
• M3: 1,320,800 km (0.076 R)
• M4: 1,747,303 km (0.116 R)
• M5: 2,941,842 km (0.083 R)
• M6: 3,794,251 km (0.098 R)
• M7: 5,025,890 km (0.099 R)
• M8: 5,672,153 km (0.105 R)
• M9: 7,274,795 km (0.059 R)
• M10: 7,718,801 km (0.119 R)
• M11: 8,180,760 km (0.096 R)
• M12: 10,353,369 km (0.103 R)
• M13: 11,351,038 km (0.119 R)
• M14: 13,536,812 km (0.114 R)
• M15: 14,438,887 km (0.072 R)
• M16: 15,260,628 km (0.101 R)
• M17: 18,046,889 km (0.103 R)
• M18: 24,033,197 km (0.07 R)
• M19: 24,770,565 km (0.085 R)
• M20: 25,354,595 km (0.05 R)
• M21: 27,073,624 km (0.111 R)
• M22: 27,693,259 km (0.086 R)
• M23: 28,051,546 km (0.117 R)
• M24: 28,960,801 km (0.111 R)
• M25: 29,515,809 km (0.097 R)
• M26: 32,496,846 km (0.104 R)
• M27: 34,316,854 km (0.037 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 475 - 13,293 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit