🌌 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: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.68

Radius: 0.86

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.46 AU - 0.56 AU

Year: 132 Days

Day: 16.1 Hours

Environment

Temp: 210 °C

Axial Tilt: 6.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.79 AU - 0.87 AU

Year: 273 Days

Day: 19 Hours

Environment

Temp: 132 °C

Axial Tilt: 11.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.03

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.01 AU - 1.27 AU

Year: 440 Days

Day: 29.6 Hours

Environment

Temp: 21 °C

Axial Tilt: 19.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.33 AU - 1.55 AU

Year: 625 Days

Day: 45.7 Hours

Environment

Temp: -37 °C

Axial Tilt: 12.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 5.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 669.4

Radius: 8.4

Gravity: 9.49 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 4.36 AU - 5.74 AU

Year: 4104 Days

Day: 5.7 Hours

Environment

Temp: -134 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 72,817,756 km

• M1: 134,788 km (0.119 R)
• M2: 414,536 km (0.096 R)
• M3: 678,875 km (0.089 R)
• M4: 1,105,827 km (0.11 R)
• M5: 1,704,817 km (0.114 R)
• M6: 1,974,542 km (0.107 R)
• M7: 2,318,169 km (0.097 R)
• M8: 2,926,284 km (0.056 R)
• M9: 3,534,549 km (0.105 R)
• M10: 4,224,494 km (0.105 R)
• M11: 4,773,668 km (0.114 R)
• M12: 5,423,671 km (0.107 R)
• M13: 6,431,212 km (0.117 R)
• M14: 8,187,192 km (0.105 R)
• M15: 9,040,648 km (0.104 R)
• M16: 11,635,573 km (0.119 R)
• M17: 12,143,009 km (0.091 R)
• M18: 13,652,152 km (0.071 R)
• M19: 17,512,974 km (0.087 R)
• M20: 22,679,636 km (0.037 R)
• M21: 26,112,757 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572.6

Radius: 8.1

Gravity: 8.73 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 4.4 AU - 5.7 AU

Year: 4104 Days

Day: 12.9 Hours

Environment

Temp: -134 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,817,756 km

• M1: 100,679 km (0.056 R)
• M2: 427,252 km (0.116 R)
• M3: 706,401 km (0.105 R)
• M4: 1,269,188 km (0.048 R)
• M5: 1,562,699 km (0.1 R)
• M6: 2,486,765 km (0.101 R)
• M7: 2,864,650 km (0.069 R)
• M8: 3,395,273 km (0.077 R)
• M9: 4,121,122 km (0.067 R)
• M10: 4,532,815 km (0.103 R)
• M11: 7,338,823 km (0.075 R)
• M12: 7,705,038 km (0.104 R)
• M13: 9,922,079 km (0.079 R)
• M14: 15,952,967 km (0.091 R)
• M15: 16,853,247 km (0.088 R)
• M16: 17,965,807 km (0.106 R)
• M17: 20,663,355 km (0.094 R)
• M18: 20,927,246 km (0.119 R)
• M19: 24,053,243 km (0.051 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 662.5

Radius: 11.2

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 6.24 AU - 10.32 AU

Year: 8617 Days

Day: 13.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 72,817,756 km

• M1: 140,472 km (0.1 R)
• M2: 639,680 km (0.07 R)
• M3: 1,182,721 km (0.055 R)
• M4: 1,880,894 km (0.107 R)
• M5: 2,395,511 km (0.05 R)
• M6: 2,877,365 km (0.089 R)
• M7: 4,496,762 km (0.103 R)
• M8: 5,455,236 km (0.12 R)
• M9: 6,617,611 km (0.049 R)
• M10: 7,374,577 km (0.089 R)
• M11: 9,015,815 km (0.093 R)
• M12: 9,802,700 km (0.054 R)
• M13: 10,385,234 km (0.064 R)
• M14: 10,990,806 km (0.051 R)
• M15: 12,217,060 km (0.117 R)
• M16: 14,072,223 km (0.105 R)
• M17: 18,116,452 km (0.051 R)
• M18: 20,054,343 km (0.081 R)
• M19: 20,598,879 km (0.11 R)
• M20: 21,393,842 km (0.111 R)
• M21: 22,209,150 km (0.047 R)
• M22: 25,770,028 km (0.083 R)
• M23: 26,974,142 km (0.042 R)
• M24: 32,914,075 km (0.113 R)
• M25: 33,345,814 km (0.11 R)
• M26: 33,781,294 km (0.113 R)
• M27: 34,441,619 km (0.098 R)
• M28: 34,998,571 km (0.118 R)
• M29: 36,936,911 km (0.089 R)
• M30: 41,275,997 km (0.095 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 887.4

Radius: 15

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 9.45 AU - 14.17 AU

Year: 14678 Days

Day: 13.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,817,756 km

• M1: 186,549 km (0.115 R)
• M2: 662,868 km (0.075 R)
• M3: 1,140,385 km (0.062 R)
• M4: 2,230,504 km (0.087 R)
• M5: 3,651,086 km (0.086 R)
• M6: 6,996,992 km (0.029 R)
• M7: 7,959,804 km (0.086 R)
• M8: 9,595,058 km (0.105 R)
• M9: 10,725,120 km (0.063 R)
• M10: 11,754,054 km (0.056 R)
• M11: 13,317,651 km (0.09 R)
• M12: 25,833,308 km (0.099 R)
• M13: 28,806,716 km (0.081 R)
• M14: 31,031,236 km (0.067 R)
• M15: 39,227,105 km (0.104 R)
• M16: 39,933,506 km (0.097 R)
• M17: 44,351,430 km (0.062 R)
• M18: 52,251,544 km (0.08 R)
• M19: 67,486,891 km (0.048 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 484.6

Radius: 5.1

Gravity: 18.63 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 12.88 AU - 18.3 AU

Year: 22262 Days

Day: 17.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 72,817,756 km

• M1: 63,729 km (0.102 R)
• M2: 262,993 km (0.095 R)
• M3: 502,050 km (0.107 R)
• M4: 708,795 km (0.085 R)
• M5: 892,202 km (0.106 R)
• M6: 1,107,323 km (0.119 R)
• M7: 1,417,290 km (0.113 R)
• M8: 1,747,602 km (0.112 R)
• M9: 4,412,389 km (0.058 R)
• M10: 4,650,250 km (0.082 R)
• M11: 5,531,082 km (0.055 R)
• M12: 5,888,322 km (0.096 R)
• M13: 6,176,746 km (0.094 R)
• M14: 7,191,319 km (0.115 R)
• M15: 7,378,466 km (0.116 R)
• M16: 7,665,245 km (0.082 R)
• M17: 11,079,817 km (0.114 R)
• M18: 11,329,795 km (0.119 R)
• M19: 11,711,569 km (0.105 R)
• M20: 12,102,019 km (0.072 R)
• M21: 14,039,461 km (0.096 R)
• M22: 15,778,387 km (0.084 R)
• M23: 19,225,122 km (0.101 R)
• M24: 22,838,957 km (0.059 R)
• M25: 24,804,823 km (0.057 R)
• M26: 29,069,709 km (0.109 R)
• M27: 30,511,832 km (0.116 R)
• M28: 36,207,322 km (0.086 R)
• M29: 36,619,614 km (0.088 R)
• M30: 39,015,125 km (0.104 R)
• M31: 39,448,510 km (0.059 R)
• M32: 42,116,139 km (0.1 R)
• M33: 47,807,291 km (0.101 R)
• M34: 48,970,414 km (0.092 R)
• M35: 54,348,607 km (0.118 R)
• M36: 58,962,206 km (0.109 R)
• M37: 59,532,772 km (0.091 R)
• M38: 60,299,311 km (0.09 R)
• M39: 70,017,039 km (0.075 R)

Kuiper Belt

Range: 30.3 - 52.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 328 - 15,392 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit