🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.66

Radius: 0.85

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.48 AU - 0.76 AU

Year: 185 Days

Day: 27.9 Hours

Environment

Temp: 140 °C

Axial Tilt: 43.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 75,262,846 km

• M1: 50,863 km (0.087 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.72

Radius: 0.88

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.82 AU - 0.96 AU

Year: 318 Days

Day: 28.6 Hours

Environment

Temp: 37 °C

Axial Tilt: 0 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 75,262,846 km

• M1: 33,360 km (0.09 R)
• M2: 56,698 km (0.112 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.65 AU - 1.79 AU

Year: 854 Days

Day: 37.1 Hours

Environment

Temp: -64 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,262,846 km

• M1: 826,977 km (0.076 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.62

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.38 AU - 2.18 AU

Year: 899 Days

Day: 43.3 Hours

Environment

Temp: -75 °C

Axial Tilt: 32.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.69 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.3

Radius: 14.4

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 4.25 AU - 6.93 AU

Year: 5006 Days

Day: 12.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 75,262,846 km

• M1: 179,069 km (0.11 R)
• M2: 786,137 km (0.082 R)
• M3: 1,400,236 km (0.038 R)
• M4: 2,251,298 km (0.118 R)
• M5: 3,448,381 km (0.103 R)
• M6: 4,817,201 km (0.114 R)
• M7: 5,852,867 km (0.049 R)
• M8: 7,459,249 km (0.076 R)
• M9: 9,470,592 km (0.093 R)
• M10: 10,305,498 km (0.055 R)
• M11: 11,189,023 km (0.059 R)
• M12: 12,376,531 km (0.06 R)
• M13: 12,895,486 km (0.119 R)
• M14: 14,712,203 km (0.063 R)
• M15: 16,945,848 km (0.06 R)
• M16: 18,044,645 km (0.073 R)
• M17: 18,780,666 km (0.106 R)
• M18: 19,467,021 km (0.11 R)
• M19: 21,478,065 km (0.102 R)
• M20: 25,325,274 km (0.08 R)
• M21: 28,429,430 km (0.106 R)
• M22: 30,446,458 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 454.6

Radius: 13.4

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 6.26 AU - 8.24 AU

Year: 7394 Days

Day: 10.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 75,262,846 km

• M1: 166,652 km (0.093 R)
• M2: 585,975 km (0.079 R)
• M3: 1,113,008 km (0.108 R)
• M4: 1,675,795 km (0.067 R)
• M5: 3,124,202 km (0.101 R)
• M6: 3,543,226 km (0.063 R)
• M7: 4,317,843 km (0.057 R)
• M8: 6,269,946 km (0.102 R)
• M9: 7,926,443 km (0.085 R)
• M10: 9,126,517 km (0.081 R)
• M11: 10,036,372 km (0.098 R)
• M12: 11,101,209 km (0.081 R)
• M13: 11,986,081 km (0.113 R)
• M14: 14,176,941 km (0.1 R)
• M15: 14,865,840 km (0.097 R)
• M16: 15,456,901 km (0.041 R)
• M17: 16,435,121 km (0.108 R)
• M18: 17,979,420 km (0.064 R)
• M19: 20,546,968 km (0.119 R)
• M20: 21,579,343 km (0.099 R)
• M21: 23,827,500 km (0.043 R)
• M22: 25,215,768 km (0.035 R)
• M23: 26,398,938 km (0.094 R)
• M24: 31,311,433 km (0.093 R)
• M25: 33,376,183 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 419.3

Radius: 5.5

Gravity: 13.86 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 10.15 AU - 15.39 AU

Year: 17284 Days

Day: 20.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 75,262,846 km

• M1: 68,366 km (0.077 R)
• M2: 321,935 km (0.078 R)
• M3: 595,250 km (0.045 R)
• M4: 847,771 km (0.095 R)
• M5: 1,395,299 km (0.087 R)
• M6: 1,829,432 km (0.116 R)
• M7: 2,410,321 km (0.117 R)
• M8: 2,665,535 km (0.066 R)
• M9: 2,892,026 km (0.099 R)
• M10: 3,541,281 km (0.103 R)
• M11: 4,283,137 km (0.045 R)
• M12: 4,531,020 km (0.046 R)
• M13: 4,755,716 km (0.073 R)
• M14: 5,474,833 km (0.066 R)
• M15: 6,788,901 km (0.094 R)
• M16: 9,545,691 km (0.079 R)
• M17: 11,198,448 km (0.087 R)
• M18: 11,491,360 km (0.103 R)
• M19: 14,224,962 km (0.077 R)
• M20: 14,988,211 km (0.08 R)
• M21: 15,998,595 km (0.081 R)
• M22: 20,408,890 km (0.083 R)
• M23: 27,320,461 km (0.115 R)
• M24: 28,606,105 km (0.049 R)
• M25: 30,043,740 km (0.107 R)
• M26: 30,269,184 km (0.111 R)
• M27: 34,768,640 km (0.12 R)
• M28: 38,488,091 km (0.086 R)
• M29: 39,829,685 km (0.094 R)
• M30: 42,040,742 km (0.093 R)
• M31: 42,464,253 km (0.116 R)
• M32: 47,464,412 km (0.11 R)
• M33: 48,231,401 km (0.107 R)
• M34: 50,263,987 km (0.073 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 511.1

Radius: 7.9

Gravity: 8.19 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 13.35 AU - 14.85 AU

Year: 20053 Days

Day: 20.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 75,262,846 km

• M1: 98,435 km (0.071 R)
• M2: 449,542 km (0.11 R)
• M3: 813,513 km (0.117 R)
• M4: 2,037,822 km (0.108 R)
• M5: 2,763,970 km (0.05 R)
• M6: 3,213,063 km (0.029 R)
• M7: 3,826,863 km (0.074 R)
• M8: 4,417,924 km (0.079 R)
• M9: 5,212,887 km (0.054 R)
• M10: 5,859,449 km (0.092 R)
• M11: 6,861,755 km (0.03 R)
• M12: 7,543,772 km (0.08 R)
• M13: 8,420,715 km (0.1 R)
• M14: 9,693,643 km (0.117 R)
• M15: 11,397,114 km (0.086 R)
• M16: 14,204,767 km (0.118 R)
• M17: 15,691,021 km (0.082 R)
• M18: 16,392,635 km (0.115 R)
• M19: 17,033,662 km (0.112 R)
• M20: 17,942,170 km (0.113 R)
• M21: 19,144,788 km (0.096 R)
• M22: 19,497,988 km (0.034 R)
• M23: 21,901,128 km (0.114 R)
• M24: 24,598,527 km (0.065 R)
• M25: 29,339,284 km (0.07 R)
• M26: 33,621,074 km (0.095 R)
• M27: 36,515,494 km (0.091 R)
• M28: 39,287,243 km (0.111 R)
• M29: 42,047,324 km (0.11 R)
• M30: 46,664,513 km (0.077 R)
• M31: 47,143,974 km (0.109 R)
• M32: 47,788,441 km (0.119 R)
• M33: 52,637,656 km (0.116 R)
• M34: 56,709,112 km (0.11 R)
• M35: 60,038,413 km (0.115 R)
• M36: 60,795,527 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 387.8

Radius: 5.1

Gravity: 14.91 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 14.61 AU - 16.85 AU

Year: 23629 Days

Day: 16.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 75,262,846 km

• M1: 91,853 km (0.114 R)
• M2: 390,750 km (0.089 R)
• M3: 584,628 km (0.098 R)
• M4: 1,541,008 km (0.109 R)
• M5: 1,980,077 km (0.037 R)
• M6: 2,589,090 km (0.083 R)
• M7: 3,315,238 km (0.075 R)
• M8: 3,919,913 km (0.068 R)
• M9: 5,196,432 km (0.073 R)
• M10: 6,298,519 km (0.082 R)
• M11: 8,281,439 km (0.091 R)
• M12: 10,117,603 km (0.108 R)
• M13: 11,007,711 km (0.1 R)
• M14: 15,704,186 km (0.072 R)
• M15: 17,720,915 km (0.119 R)
• M16: 20,638,672 km (0.112 R)
• M17: 22,064,938 km (0.072 R)
• M18: 22,357,851 km (0.084 R)
• M19: 22,752,340 km (0.116 R)
• M20: 24,585,662 km (0.1 R)
• M21: 29,951,289 km (0.066 R)
• M22: 30,310,473 km (0.084 R)
• M23: 31,775,785 km (0.071 R)
• M24: 33,415,676 km (0.115 R)
• M25: 35,111,219 km (0.1 R)
• M26: 39,384,332 km (0.103 R)
• M27: 41,868,554 km (0.107 R)
• M28: 42,317,647 km (0.08 R)
• M29: 53,025,713 km (0.036 R)
• M30: 63,811,720 km (0.098 R)
• M31: 68,051,174 km (0.045 R)
• M32: 68,464,513 km (0.105 R)

Planet 10 - Ice Giant

Semi-Major Axis: 16.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 434.8

Radius: 7.2

Gravity: 8.39 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 13.32 AU - 19.08 AU

Year: 24696 Days

Day: 23.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 75,262,846 km

• M1: 89,609 km (0.098 R)
• M2: 647,011 km (0.115 R)
• M3: 1,336,059 km (0.1 R)
• M4: 1,652,907 km (0.106 R)
• M5: 2,670,172 km (0.117 R)
• M6: 4,117,532 km (0.119 R)
• M7: 4,936,879 km (0.074 R)
• M8: 5,308,630 km (0.072 R)
• M9: 5,619,345 km (0.114 R)
• M10: 6,406,230 km (0.038 R)
• M11: 7,311,596 km (0.081 R)
• M12: 7,647,742 km (0.091 R)
• M13: 8,455,122 km (0.093 R)
• M14: 8,879,531 km (0.106 R)
• M15: 14,011,037 km (0.08 R)
• M16: 19,065,949 km (0.066 R)
• M17: 22,597,806 km (0.073 R)
• M18: 23,726,372 km (0.045 R)
• M19: 37,293,852 km (0.106 R)
• M20: 38,003,843 km (0.083 R)
• M21: 47,405,321 km (0.062 R)
• M22: 48,071,032 km (0.038 R)
• M23: 50,449,788 km (0.119 R)
• M24: 52,727,864 km (0.086 R)
• M25: 55,994,184 km (0.075 R)
• M26: 58,245,183 km (0.076 R)
• M27: 65,153,762 km (0.106 R)
• M28: 68,698,185 km (0.086 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: 393 - 15,846 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit