🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.37

Radius: 0.67

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.61 AU - 0.73 AU

Year: 206 Days

Day: 39.8 Hours

Environment

Temp: 173 °C

Axial Tilt: 37.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 106,817,117 km

• M1: 91,105 km (0.103 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.29

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.66 AU - 0.72 AU

Year: 215 Days

Day: 35.6 Hours

Environment

Temp: 185 °C

Axial Tilt: 19.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 106,817,117 km

• M1: 42,037 km (0.077 R)
• M2: 540,796 km (0.074 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.04

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.66 AU - 0.74 AU

Year: 219 Days

Day: 13.9 Hours

Environment

Temp: 151 °C

Axial Tilt: 19.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.92

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.91 AU - 2.61 AU

Year: 1273 Days

Day: 33.8 Hours

Environment

Temp: -82 °C

Axial Tilt: 18.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 106,817,117 km

• M1: 30,368 km (0.109 R)
• M2: 619,036 km (0.096 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.58

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 3.41 AU - 4.01 AU

Year: 2678 Days

Day: 36 Hours

Environment

Temp: -130 °C

Axial Tilt: 18.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 945.2

Radius: 10.8

Gravity: 8.1 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 5.18 AU - 5.56 AU

Year: 4663 Days

Day: 14.3 Hours

Environment

Temp: -147 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 106,817,117 km

• M1: 134,339 km (0.096 R)
• M2: 474,524 km (0.105 R)
• M3: 858,542 km (0.114 R)
• M4: 1,282,652 km (0.117 R)
• M5: 1,887,776 km (0.117 R)
• M6: 2,418,250 km (0.076 R)
• M7: 3,085,306 km (0.112 R)
• M8: 3,602,466 km (0.069 R)
• M9: 5,746,204 km (0.034 R)
• M10: 6,466,518 km (0.099 R)
• M11: 7,423,346 km (0.114 R)
• M12: 7,861,368 km (0.098 R)
• M13: 8,316,594 km (0.045 R)
• M14: 8,789,174 km (0.105 R)
• M15: 9,659,684 km (0.06 R)
• M16: 12,061,777 km (0.072 R)
• M17: 15,124,644 km (0.106 R)
• M18: 16,312,301 km (0.118 R)
• M19: 17,560,995 km (0.079 R)
• M20: 22,209,599 km (0.114 R)
• M21: 25,262,144 km (0.104 R)
• M22: 26,004,299 km (0.081 R)
• M23: 26,761,114 km (0.115 R)
• M24: 29,209,433 km (0.083 R)
• M25: 30,210,841 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 639.4

Radius: 9.6

Gravity: 6.94 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 5.12 AU - 6.52 AU

Year: 5262 Days

Day: 10.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 106,817,117 km

• M1: 119,828 km (0.113 R)
• M2: 503,995 km (0.099 R)
• M3: 940,522 km (0.095 R)
• M4: 1,368,222 km (0.072 R)
• M5: 1,895,704 km (0.085 R)
• M6: 2,503,670 km (0.115 R)
• M7: 3,317,183 km (0.082 R)
• M8: 5,546,341 km (0.088 R)
• M9: 6,428,968 km (0.086 R)
• M10: 8,587,217 km (0.033 R)
• M11: 10,595,269 km (0.114 R)
• M12: 11,096,123 km (0.095 R)
• M13: 11,949,878 km (0.054 R)
• M14: 12,643,713 km (0.119 R)
• M15: 17,445,356 km (0.104 R)
• M16: 20,843,771 km (0.096 R)
• M17: 22,068,229 km (0.054 R)
• M18: 25,137,379 km (0.11 R)
• M19: 28,567,359 km (0.037 R)
• M20: 30,167,159 km (0.093 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.9

Radius: 10.8

Gravity: 6.14 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 6.32 AU - 6.48 AU

Year: 6067 Days

Day: 14.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 106,817,117 km

• M1: 134,339 km (0.049 R)
• M2: 602,431 km (0.084 R)
• M3: 1,007,841 km (0.112 R)
• M4: 1,511,387 km (0.108 R)
• M5: 2,024,957 km (0.113 R)
• M6: 2,527,755 km (0.057 R)
• M7: 3,298,932 km (0.109 R)
• M8: 3,809,360 km (0.114 R)
• M9: 4,145,357 km (0.07 R)
• M10: 4,606,866 km (0.039 R)
• M11: 5,482,014 km (0.095 R)
• M12: 6,135,607 km (0.069 R)
• M13: 6,599,510 km (0.12 R)
• M14: 8,859,336 km (0.071 R)
• M15: 9,323,538 km (0.118 R)
• M16: 9,759,765 km (0.097 R)
• M17: 12,775,060 km (0.117 R)
• M18: 14,036,319 km (0.086 R)
• M19: 14,961,582 km (0.065 R)
• M20: 16,551,060 km (0.105 R)
• M21: 20,570,904 km (0.103 R)
• M22: 25,875,196 km (0.081 R)
• M23: 28,429,729 km (0.084 R)
• M24: 31,148,072 km (0.051 R)
• M25: 34,240,709 km (0.027 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 958.8

Radius: 5.8

Gravity: 28.5 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 17.63 AU - 17.95 AU

Year: 28119 Days

Day: 18.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 106,817,117 km

• M1: 78,988 km (0.114 R)
• M2: 317,596 km (0.079 R)
• M3: 517,609 km (0.091 R)
• M4: 900,729 km (0.099 R)
• M5: 1,133,054 km (0.094 R)
• M6: 1,948,213 km (0.1 R)
• M7: 2,173,208 km (0.087 R)
• M8: 2,622,002 km (0.115 R)
• M9: 4,121,272 km (0.098 R)
• M10: 4,417,476 km (0.116 R)
• M11: 4,648,754 km (0.05 R)
• M12: 4,928,951 km (0.102 R)
• M13: 6,502,122 km (0.116 R)
• M14: 7,591,793 km (0.092 R)
• M15: 8,858,588 km (0.077 R)
• M16: 11,584,560 km (0.062 R)
• M17: 16,054,095 km (0.098 R)
• M18: 16,974,122 km (0.106 R)
• M19: 17,735,127 km (0.068 R)
• M20: 18,618,053 km (0.036 R)
• M21: 19,530,002 km (0.039 R)
• M22: 21,773,072 km (0.099 R)
• M23: 26,509,939 km (0.085 R)
• M24: 27,018,423 km (0.039 R)
• M25: 27,403,936 km (0.058 R)
• M26: 30,206,353 km (0.091 R)
• M27: 38,116,191 km (0.107 R)
• M28: 45,829,607 km (0.073 R)
• M29: 47,115,849 km (0.055 R)
• M30: 48,237,385 km (0.079 R)
• M31: 51,118,789 km (0.056 R)
• M32: 56,381,642 km (0.113 R)
• M33: 62,217,306 km (0.12 R)
• M34: 67,731,334 km (0.077 R)
• M35: 68,680,981 km (0.111 R)
• M36: 73,312,980 km (0.102 R)
• M37: 82,113,673 km (0.115 R)
• M38: 85,380,442 km (0.103 R)
• M39: 91,881,965 km (0.068 R)
• M40: 92,753,522 km (0.073 R)
• M41: 94,513,242 km (0.031 R)
• M42: 95,996,654 km (0.109 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 547 - 15,848 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit