🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.55

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.44 AU - 0.6 AU

Year: 242 Days

Day: 20.8 Hours

Environment

Temp: -118 °C

Axial Tilt: 12.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,418,607 km

• M1: 346,469 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382

Radius: 11.2

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.71 AU - 0.89 AU

Year: 462 Days

Day: 14.3 Hours

Environment

Temp: -137 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 60,418,607 km

• M1: 139,276 km (0.102 R)
• M2: 518,506 km (0.089 R)
• M3: 1,021,005 km (0.079 R)
• M4: 1,434,494 km (0.085 R)
• M5: 2,165,728 km (0.06 R)
• M6: 2,520,126 km (0.113 R)
• M7: 2,954,109 km (0.107 R)
• M8: 3,575,539 km (0.077 R)
• M9: 3,936,518 km (0.067 R)
• M10: 4,388,603 km (0.108 R)
• M11: 4,976,972 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.7

Radius: 14.7

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.98 AU - 1.16 AU

Year: 715 Days

Day: 14.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 60,418,607 km

• M1: 184,604 km (0.061 R)
• M2: 683,662 km (0.03 R)
• M3: 1,173,147 km (0.082 R)
• M4: 1,672,355 km (0.091 R)
• M5: 2,206,419 km (0.103 R)
• M6: 2,738,389 km (0.111 R)
• M7: 3,931,582 km (0.09 R)
• M8: 5,192,243 km (0.106 R)
• M9: 6,537,726 km (0.087 R)
• M10: 7,213,460 km (0.11 R)
• M11: 8,476,664 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.8

Radius: 14.1

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.64 AU - 1.94 AU

Year: 1546 Days

Day: 6.8 Hours

Environment

Temp: -180 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,418,607 km

• M1: 175,478 km (0.084 R)
• M2: 696,976 km (0.049 R)
• M3: 1,203,066 km (0.105 R)
• M4: 1,785,750 km (0.079 R)
• M5: 2,513,394 km (0.109 R)
• M6: 3,047,608 km (0.092 R)
• M7: 3,767,024 km (0.118 R)
• M8: 4,394,288 km (0.075 R)
• M9: 5,124,924 km (0.086 R)
• M10: 5,655,996 km (0.12 R)
• M11: 6,421,489 km (0.086 R)
• M12: 6,976,646 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.9

Radius: 13.4

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 2.15 AU - 2.15 AU

Year: 2036 Days

Day: 8.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,418,607 km

• M1: 167,550 km (0.118 R)
• M2: 595,699 km (0.103 R)
• M3: 1,161,777 km (0.044 R)
• M4: 2,817,825 km (0.109 R)
• M5: 3,500,441 km (0.086 R)
• M6: 5,007,041 km (0.075 R)
• M7: 9,482,111 km (0.103 R)
• M8: 10,179,686 km (0.054 R)
• M9: 13,481,611 km (0.075 R)
• M10: 14,536,724 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403.6

Radius: 12

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.94 AU - 2.56 AU

Year: 2179 Days

Day: 6 Hours

Environment

Temp: -192 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 60,418,607 km

• M1: 150,944 km (0.073 R)
• M2: 648,208 km (0.108 R)
• M3: 1,270,535 km (0.113 R)
• M4: 1,702,573 km (0.045 R)
• M5: 2,151,068 km (0.026 R)
• M6: 3,077,228 km (0.084 R)
• M7: 3,499,393 km (0.037 R)
• M8: 4,289,869 km (0.046 R)
• M9: 4,697,822 km (0.093 R)
• M10: 5,569,828 km (0.117 R)
• M11: 6,496,587 km (0.095 R)
• M12: 7,774,901 km (0.107 R)
• M13: 8,869,807 km (0.045 R)
• M14: 10,543,957 km (0.103 R)
• M15: 13,416,236 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.3

Radius: 13.2

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 2.18 AU - 2.64 AU

Year: 2416 Days

Day: 10.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,418,607 km

• M1: 164,109 km (0.057 R)
• M2: 808,876 km (0.084 R)
• M3: 1,502,561 km (0.119 R)
• M4: 2,062,207 km (0.097 R)
• M5: 2,530,897 km (0.041 R)
• M6: 2,945,881 km (0.094 R)
• M7: 3,381,809 km (0.058 R)
• M8: 5,203,912 km (0.084 R)
• M9: 6,638,854 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724

Radius: 10.2

Gravity: 6.96 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.58 AU - 2.76 AU

Year: 2817 Days

Day: 8.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,418,607 km

• M1: 128,355 km (0.082 R)
• M2: 452,683 km (0.118 R)
• M3: 855,999 km (0.041 R)
• M4: 1,345,034 km (0.116 R)
• M5: 1,785,002 km (0.106 R)
• M6: 2,143,588 km (0.117 R)
• M7: 2,749,310 km (0.098 R)
• M8: 4,519,800 km (0.059 R)
• M9: 5,025,292 km (0.064 R)
• M10: 5,987,206 km (0.106 R)
• M11: 6,315,274 km (0.047 R)
• M12: 6,713,204 km (0.088 R)
• M13: 8,041,334 km (0.104 R)
• M14: 8,577,643 km (0.12 R)
• M15: 9,500,063 km (0.113 R)
• M16: 11,333,535 km (0.109 R)
• M17: 12,094,389 km (0.115 R)
• M18: 12,889,053 km (0.117 R)
• M19: 13,345,327 km (0.12 R)
• M20: 20,300,880 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 688.1

Radius: 6.1

Gravity: 18.49 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 6.72 AU - 8.92 AU

Year: 14120 Days

Day: 24.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 60,418,607 km

• M1: 94,845 km (0.089 R)
• M2: 287,826 km (0.1 R)
• M3: 489,783 km (0.07 R)
• M4: 744,997 km (0.11 R)
• M5: 1,124,228 km (0.118 R)
• M6: 1,562,849 km (0.116 R)
• M7: 1,908,570 km (0.066 R)
• M8: 2,109,330 km (0.099 R)
• M9: 2,619,010 km (0.118 R)
• M10: 2,844,604 km (0.086 R)
• M11: 5,911,210 km (0.109 R)
• M12: 6,917,555 km (0.092 R)
• M13: 10,959,390 km (0.086 R)
• M14: 11,487,770 km (0.081 R)
• M15: 12,033,054 km (0.107 R)
• M16: 12,406,151 km (0.106 R)
• M17: 13,772,578 km (0.115 R)
• M18: 14,949,914 km (0.106 R)
• M19: 17,821,445 km (0.105 R)
• M20: 18,224,761 km (0.069 R)
• M21: 18,799,516 km (0.099 R)
• M22: 24,826,814 km (0.109 R)
• M23: 25,127,805 km (0.082 R)
• M24: 26,148,810 km (0.093 R)
• M25: 30,740,268 km (0.12 R)
• M26: 35,206,363 km (0.091 R)
• M27: 39,811,733 km (0.05 R)
• M28: 45,999,550 km (0.082 R)
• M29: 48,300,515 km (0.039 R)
• M30: 49,717,207 km (0.087 R)
• M31: 50,838,144 km (0.114 R)
• M32: 52,798,624 km (0.119 R)
• M33: 53,797,638 km (0.097 R)
• M34: 56,696,247 km (0.089 R)
• M35: 58,981,952 km (0.102 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 203 - 15,252 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit