🌌 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: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.88

Radius: 1.29

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.4 AU - 0.64 AU

Year: 134 Days

Day: 13.4 Hours

Environment

Temp: 199 °C

Axial Tilt: 9.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.48

Radius: 0.75

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.11 AU - 1.39 AU

Year: 501 Days

Day: 42.5 Hours

Environment

Temp: 13 °C

Axial Tilt: 37.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 80,953,825 km

• M1: 18,401 km (0.12 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.37

Radius: 0.67

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.48 AU - 1.76 AU

Year: 738 Days

Day: 21.4 Hours

Environment

Temp: -29 °C

Axial Tilt: 34.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 80,953,825 km

• M1: 19,149 km (0.119 R)
• M2: 516,711 km (0.071 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.57

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.68 AU - 1.72 AU

Year: 794 Days

Day: 13.4 Hours

Environment

Temp: -38 °C

Axial Tilt: 25.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.91

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.75 AU - 2.09 AU

Year: 953 Days

Day: 38.2 Hours

Environment

Temp: -55 °C

Axial Tilt: 39.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.82

Radius: 1.51

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 2.53 AU - 2.85 AU

Year: 1580 Days

Day: 25.3 Hours

Environment

Temp: -80 °C

Axial Tilt: 1.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 781.2

Radius: 14.8

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 4.67 AU - 6.97 AU

Year: 5029 Days

Day: 7.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 80,953,825 km

• M1: 185,053 km (0.068 R)
• M2: 776,563 km (0.086 R)
• M3: 1,399,787 km (0.112 R)
• M4: 2,183,979 km (0.119 R)
• M5: 2,977,297 km (0.098 R)
• M6: 3,473,812 km (0.087 R)
• M7: 3,979,603 km (0.099 R)
• M8: 4,951,390 km (0.114 R)
• M9: 5,984,214 km (0.103 R)
• M10: 6,683,285 km (0.113 R)
• M11: 7,156,164 km (0.077 R)
• M12: 8,056,743 km (0.054 R)
• M13: 13,466,651 km (0.048 R)
• M14: 14,005,053 km (0.108 R)
• M15: 15,010,501 km (0.077 R)
• M16: 16,243,786 km (0.105 R)
• M17: 18,978,734 km (0.112 R)
• M18: 19,724,928 km (0.119 R)
• M19: 20,916,774 km (0.116 R)
• M20: 21,786,536 km (0.077 R)
• M21: 24,066,707 km (0.043 R)
• M22: 24,860,922 km (0.114 R)
• M23: 26,002,204 km (0.115 R)
• M24: 26,501,861 km (0.054 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 748.3

Radius: 9.8

Gravity: 7.79 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 6.75 AU - 7.49 AU

Year: 6804 Days

Day: 12.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 80,953,825 km

• M1: 121,922 km (0.076 R)
• M2: 532,718 km (0.115 R)
• M3: 879,486 km (0.101 R)
• M4: 1,553,125 km (0.115 R)
• M5: 2,194,302 km (0.106 R)
• M6: 2,764,868 km (0.11 R)
• M7: 3,431,476 km (0.076 R)
• M8: 3,755,355 km (0.055 R)
• M9: 5,231,438 km (0.119 R)
• M10: 5,853,914 km (0.105 R)
• M11: 10,008,098 km (0.096 R)
• M12: 10,673,359 km (0.106 R)
• M13: 11,317,079 km (0.092 R)
• M14: 11,726,079 km (0.065 R)
• M15: 12,039,188 km (0.117 R)
• M16: 12,736,912 km (0.07 R)
• M17: 14,749,452 km (0.074 R)
• M18: 15,610,837 km (0.083 R)
• M19: 17,366,518 km (0.061 R)
• M20: 17,979,869 km (0.108 R)
• M21: 19,249,955 km (0.091 R)
• M22: 19,686,332 km (0.088 R)
• M23: 20,278,440 km (0.105 R)
• M24: 21,265,786 km (0.115 R)
• M25: 24,675,271 km (0.078 R)
• M26: 25,625,068 km (0.042 R)
• M27: 26,420,031 km (0.072 R)
• M28: 30,742,811 km (0.109 R)
• M29: 34,544,841 km (0.072 R)
• M30: 35,189,608 km (0.091 R)
• M31: 36,948,131 km (0.079 R)
• M32: 37,396,775 km (0.096 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.2

Radius: 10.2

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 7.56 AU - 11.8 AU

Year: 10787 Days

Day: 10 Hours

Environment

Temp: -169 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 80,953,825 km

• M1: 126,859 km (0.061 R)
• M2: 548,725 km (0.091 R)
• M3: 914,641 km (0.111 R)
• M4: 1,531,882 km (0.068 R)
• M5: 2,131,321 km (0.065 R)
• M6: 4,084,770 km (0.115 R)
• M7: 5,781,659 km (0.045 R)
• M8: 6,495,839 km (0.11 R)
• M9: 7,015,841 km (0.067 R)
• M10: 9,684,517 km (0.091 R)
• M11: 12,487,383 km (0.11 R)
• M12: 13,074,256 km (0.09 R)
• M13: 14,945,426 km (0.113 R)
• M14: 18,656,201 km (0.115 R)
• M15: 26,947,064 km (0.115 R)
• M16: 27,657,505 km (0.104 R)
• M17: 31,009,993 km (0.116 R)
• M18: 33,900,373 km (0.085 R)

Planet 10 - Ice Giant

Semi-Major Axis: 16.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 597.3

Radius: 3.9

Gravity: 39.27 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 14.56 AU - 17.98 AU

Year: 23505 Days

Day: 19.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 80,953,825 km

• M1: 48,619 km (0.069 R)
• M2: 310,715 km (0.066 R)
• M3: 432,188 km (0.117 R)
• M4: 686,056 km (0.107 R)
• M5: 1,045,839 km (0.101 R)
• M6: 1,421,778 km (0.091 R)
• M7: 2,083,599 km (0.105 R)
• M8: 2,232,898 km (0.097 R)
• M9: 2,982,533 km (0.097 R)
• M10: 4,349,259 km (0.052 R)
• M11: 6,940,294 km (0.064 R)
• M12: 7,274,496 km (0.081 R)
• M13: 7,420,952 km (0.075 R)
• M14: 10,101,147 km (0.038 R)
• M15: 10,843,901 km (0.114 R)
• M16: 11,035,237 km (0.119 R)
• M17: 11,163,891 km (0.074 R)
• M18: 13,509,137 km (0.05 R)
• M19: 13,954,489 km (0.094 R)
• M20: 15,590,342 km (0.086 R)
• M21: 16,412,532 km (0.102 R)
• M22: 18,593,669 km (0.107 R)
• M23: 19,517,735 km (0.089 R)
• M24: 22,267,194 km (0.093 R)
• M25: 26,167,061 km (0.108 R)
• M26: 30,498,667 km (0.033 R)
• M27: 33,637,231 km (0.089 R)
• M28: 40,853,832 km (0.106 R)
• M29: 41,007,768 km (0.111 R)
• M30: 41,471,971 km (0.055 R)
• M31: 41,627,552 km (0.062 R)
• M32: 42,096,542 km (0.109 R)
• M33: 49,559,381 km (0.087 R)
• M34: 53,508,765 km (0.039 R)
• M35: 54,063,174 km (0.11 R)
• M36: 60,615,262 km (0.064 R)
• M37: 61,217,693 km (0.063 R)
• M38: 62,026,868 km (0.104 R)
• M39: 75,036,347 km (0.104 R)
• M40: 76,663,074 km (0.098 R)
• M41: 77,839,362 km (0.08 R)

Kuiper Belt

Range: 30.6 - 57.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 278 - 13,201 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit