🌌 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 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.36

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.49 AU - 0.53 AU

Year: 235 Days

Day: 26.2 Hours

Environment

Temp: -124 °C

Axial Tilt: 45.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.58

Radius: 0.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.55 AU - 0.75 AU

Year: 338 Days

Day: 21.8 Hours

Environment

Temp: -142 °C

Axial Tilt: 23.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 52,528,056 km

• M1: 346,469 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 650.4

Radius: 13

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.84 AU - 1.36 AU

Year: 745 Days

Day: 5.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 52,528,056 km

• M1: 164,408 km (0.102 R)
• M2: 729,439 km (0.109 R)
• M3: 1,227,600 km (0.065 R)
• M4: 1,716,636 km (0.06 R)
• M5: 2,523,866 km (0.092 R)
• M6: 3,039,829 km (0.084 R)
• M7: 3,752,064 km (0.108 R)
• M8: 4,302,435 km (0.082 R)
• M9: 4,889,158 km (0.077 R)
• M10: 6,264,411 km (0.044 R)
• M11: 7,085,853 km (0.092 R)
• M12: 7,580,274 km (0.119 R)
• M13: 8,025,776 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 428

Radius: 9.6

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.6 AU - 1.94 AU

Year: 1520 Days

Day: 12.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 52,528,056 km

• M1: 119,379 km (0.116 R)
• M2: 473,627 km (0.067 R)
• M3: 847,771 km (0.089 R)
• M4: 1,229,395 km (0.076 R)
• M5: 1,572,274 km (0.094 R)
• M6: 2,181,287 km (0.095 R)
• M7: 2,652,669 km (0.069 R)
• M8: 3,351,441 km (0.091 R)
• M9: 4,431,987 km (0.081 R)
• M10: 5,191,345 km (0.07 R)
• M11: 6,124,238 km (0.102 R)
• M12: 6,678,199 km (0.117 R)
• M13: 7,623,358 km (0.086 R)
• M14: 7,939,608 km (0.099 R)
• M15: 9,383,078 km (0.119 R)
• M16: 9,839,052 km (0.113 R)
• M17: 11,161,348 km (0.108 R)
• M18: 11,604,307 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 773.8

Radius: 13.5

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 3.24 AU - 4.18 AU

Year: 4614 Days

Day: 9.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 52,528,056 km

• M1: 167,998 km (0.099 R)
• M2: 659,427 km (0.085 R)
• M3: 1,353,562 km (0.075 R)
• M4: 1,953,299 km (0.111 R)
• M5: 2,779,828 km (0.081 R)
• M6: 3,344,410 km (0.114 R)
• M7: 3,850,649 km (0.098 R)
• M8: 4,887,213 km (0.072 R)
• M9: 5,429,056 km (0.092 R)
• M10: 6,442,881 km (0.107 R)
• M11: 8,727,989 km (0.073 R)
• M12: 9,736,577 km (0.061 R)
• M13: 10,334,371 km (0.114 R)
• M14: 10,776,283 km (0.057 R)
• M15: 11,277,136 km (0.041 R)
• M16: 12,473,171 km (0.092 R)
• M17: 14,670,764 km (0.112 R)
• M18: 15,343,506 km (0.07 R)
• M19: 22,503,708 km (0.106 R)
• M20: 23,932,219 km (0.034 R)
• M21: 25,660,822 km (0.116 R)
• M22: 27,894,318 km (0.116 R)
• M23: 28,840,375 km (0.047 R)
• M24: 29,630,401 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384.4

Radius: 11.2

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 3.86 AU - 4.44 AU

Year: 5459 Days

Day: 5.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 52,528,056 km

• M1: 140,772 km (0.063 R)
• M2: 497,862 km (0.1 R)
• M3: 891,903 km (0.07 R)
• M4: 1,709,455 km (0.081 R)
• M5: 2,170,067 km (0.117 R)
• M6: 2,831,888 km (0.047 R)
• M7: 5,055,361 km (0.108 R)
• M8: 5,425,167 km (0.089 R)
• M9: 5,813,224 km (0.102 R)
• M10: 6,219,681 km (0.108 R)
• M11: 8,471,877 km (0.074 R)
• M12: 9,149,256 km (0.054 R)
• M13: 12,366,658 km (0.088 R)
• M14: 13,337,847 km (0.027 R)
• M15: 15,158,902 km (0.119 R)
• M16: 16,499,897 km (0.104 R)
• M17: 18,782,461 km (0.095 R)
• M18: 19,738,841 km (0.107 R)
• M19: 20,460,650 km (0.109 R)
• M20: 21,818,101 km (0.117 R)
• M21: 22,803,353 km (0.12 R)
• M22: 25,472,927 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 331.8

Radius: 6.9

Gravity: 6.97 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 7.2 AU - 10.14 AU

Year: 16483 Days

Day: 15.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 52,528,056 km

• M1: 85,869 km (0.076 R)
• M2: 550,969 km (0.078 R)
• M3: 885,769 km (0.109 R)
• M4: 1,129,614 km (0.039 R)
• M5: 1,364,781 km (0.054 R)
• M6: 2,258,030 km (0.049 R)
• M7: 2,492,001 km (0.035 R)
• M8: 2,873,476 km (0.116 R)
• M9: 3,391,982 km (0.077 R)
• M10: 4,492,424 km (0.05 R)
• M11: 4,707,097 km (0.116 R)
• M12: 5,058,353 km (0.06 R)
• M13: 5,495,777 km (0.111 R)
• M14: 5,777,470 km (0.113 R)
• M15: 6,255,585 km (0.085 R)
• M16: 6,960,789 km (0.084 R)
• M17: 7,374,876 km (0.069 R)
• M18: 8,481,900 km (0.032 R)
• M19: 9,594,759 km (0.039 R)
• M20: 10,584,797 km (0.03 R)
• M21: 12,644,910 km (0.067 R)
• M22: 14,621,097 km (0.108 R)
• M23: 20,993,967 km (0.051 R)
• M24: 22,209,898 km (0.026 R)
• M25: 23,380,352 km (0.057 R)
• M26: 23,748,662 km (0.085 R)
• M27: 28,266,518 km (0.092 R)
• M28: 29,747,686 km (0.051 R)
• M29: 30,507,195 km (0.115 R)
• M30: 34,738,421 km (0.099 R)
• M31: 41,996,610 km (0.119 R)
• M32: 44,765,068 km (0.107 R)
• M33: 52,370,923 km (0.057 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 247 - 13,857 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit