🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.21

Radius: 0.54

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.49 AU - 0.59 AU

Year: 150 Days

Day: 23.1 Hours

Environment

Temp: 149 °C

Axial Tilt: 3.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.07

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.58 AU - 0.9 AU

Year: 241 Days

Day: 48 Hours

Environment

Temp: 181 °C

Axial Tilt: 39.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.68

Radius: 1.23

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.81 AU - 0.97 AU

Year: 318 Days

Day: 16.7 Hours

Environment

Temp: 23 °C

Axial Tilt: 29.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 30,863,558 km

• M1: 578,645 km (0.083 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.05

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.91 AU - 1.07 AU

Year: 373 Days

Day: 16.4 Hours

Environment

Temp: 20 °C

Axial Tilt: 2.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 30,863,558 km

• M1: 381,624 km (0.115 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.46

Radius: 1.43

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.37 AU - 2.05 AU

Year: 847 Days

Day: 30.3 Hours

Environment

Temp: -54 °C

Axial Tilt: 19.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.9

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.43 AU - 2.29 AU

Year: 961 Days

Day: 26.8 Hours

Environment

Temp: -72 °C

Axial Tilt: 20.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.4

Radius: 0.69

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.86 AU - 2.14 AU

Year: 1071 Days

Day: 23.6 Hours

Environment

Temp: -86 °C

Axial Tilt: 45 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.4

Radius: 12.7

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 5.43 AU - 8.29 AU

Year: 6805 Days

Day: 13.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 30,863,558 km

• M1: 164,408 km (0.091 R)
• M2: 533,167 km (0.08 R)
• M3: 637,437 km (0.097 R)
• M4: 885,919 km (0.074 R)
• M5: 1,201,570 km (0.084 R)
• M6: 1,400,834 km (0.098 R)
• M7: 1,771,388 km (0.115 R)
• M8: 1,874,162 km (0.083 R)
• M9: 2,064,301 km (0.038 R)
• M10: 2,151,068 km (0.1 R)
• M11: 2,487,065 km (0.073 R)
• M12: 2,986,123 km (0.037 R)
• M13: 3,184,490 km (0.03 R)
• M14: 3,413,075 km (0.098 R)
• M15: 3,806,069 km (0.116 R)
• M16: 4,158,522 km (0.054 R)
• M17: 5,070,919 km (0.03 R)
• M18: 5,159,631 km (0.09 R)
• M19: 5,338,699 km (0.086 R)
• M20: 5,459,125 km (0.056 R)
• M21: 5,857,056 km (0.107 R)
• M22: 6,359,705 km (0.092 R)
• M23: 7,007,613 km (0.095 R)
• M24: 7,206,129 km (0.076 R)
• M25: 7,306,210 km (0.12 R)
• M26: 7,642,806 km (0.066 R)
• M27: 8,157,273 km (0.043 R)
• M28: 8,541,739 km (0.113 R)
• M29: 8,647,655 km (0.119 R)
• M30: 8,932,190 km (0.054 R)
• M31: 9,256,069 km (0.075 R)
• M32: 9,437,681 km (0.067 R)
• M33: 9,730,743 km (0.067 R)
• M34: 9,915,347 km (0.101 R)
• M35: 10,325,843 km (0.11 R)
• M36: 10,514,187 km (0.051 R)
• M37: 11,825,562 km (0.066 R)
• M38: 11,943,744 km (0.109 R)
• M39: 13,351,460 km (0.103 R)
• M40: 14,430,959 km (0.071 R)
• M41: 14,599,555 km (0.096 R)
• M42: 15,023,815 km (0.101 R)
• M43: 15,109,235 km (0.066 R)
• M44: 15,409,179 km (0.1 R)
• M45: 15,667,983 km (0.057 R)
• M46: 16,496,756 km (0.12 R)
• M47: 17,339,889 km (0.112 R)
• M48: 18,607,881 km (0.098 R)
• M49: 19,114,120 km (0.1 R)
• M50: 19,485,272 km (0.102 R)
• M51: 20,234,608 km (0.109 R)
• M52: 20,897,925 km (0.068 R)
• M53: 21,424,210 km (0.031 R)
• M54: 22,587,633 km (0.117 R)
• M55: 23,078,314 km (0.104 R)
• M56: 24,370,840 km (0.034 R)
• M57: 25,279,497 km (0.074 R)
• M58: 25,431,937 km (0.059 R)
• M59: 25,789,027 km (0.078 R)
• M60: 25,891,352 km (0.071 R)
• M61: 25,993,827 km (0.083 R)
• M62: 26,147,763 km (0.12 R)
• M63: 26,301,998 km (0.115 R)
• M64: 26,611,367 km (0.093 R)
• M65: 26,973,842 km (0.057 R)
• M66: 30,471,291 km (0.066 R)
• M67: 31,231,398 km (0.102 R)
• M68: 31,340,455 km (0.048 R)
• M69: 31,887,833 km (0.046 R)
• M70: 32,107,593 km (0.087 R)
• M71: 32,217,697 km (0.067 R)
• M72: 32,936,514 km (0.081 R)
• M73: 33,214,467 km (0.108 R)
• M74: 34,221,111 km (0.104 R)
• M75: 34,389,858 km (0.056 R)
• M76: 38,464,156 km (0.085 R)
• M77: 38,581,141 km (0.067 R)

Planet 9 - Gas Giant

Semi-Major Axis: 10.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 113

Radius: 13.7

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 8.64 AU - 12.18 AU

Year: 12721 Days

Day: 5.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (48)

Outer Limit: 30,863,558 km

• M1: 178,171 km (0.109 R)
• M2: 362,775 km (0.072 R)
• M3: 453,730 km (0.067 R)
• M4: 1,692,850 km (0.099 R)
• M5: 1,989,203 km (0.095 R)
• M6: 2,712,359 km (0.08 R)
• M7: 2,854,178 km (0.072 R)
• M8: 3,208,874 km (0.075 R)
• M9: 3,315,986 km (0.108 R)
• M10: 3,511,960 km (0.075 R)
• M11: 3,666,943 km (0.095 R)
• M12: 3,756,552 km (0.051 R)
• M13: 3,938,164 km (0.055 R)
• M14: 5,239,067 km (0.086 R)
• M15: 6,552,985 km (0.073 R)
• M16: 6,772,445 km (0.104 R)
• M17: 8,228,182 km (0.067 R)
• M18: 8,885,366 km (0.106 R)
• M19: 9,037,058 km (0.057 R)
• M20: 9,312,467 km (0.11 R)
• M21: 9,902,781 km (0.115 R)
• M22: 10,091,723 km (0.068 R)
• M23: 11,349,242 km (0.047 R)
• M24: 11,712,765 km (0.116 R)
• M25: 12,689,789 km (0.065 R)
• M26: 14,115,457 km (0.116 R)
• M27: 15,738,145 km (0.038 R)
• M28: 15,958,951 km (0.12 R)
• M29: 16,665,053 km (0.1 R)
• M30: 16,890,198 km (0.056 R)
• M31: 17,078,542 km (0.056 R)
• M32: 17,267,633 km (0.12 R)
• M33: 17,457,324 km (0.087 R)
• M34: 18,532,783 km (0.098 R)
• M35: 19,471,659 km (0.096 R)
• M36: 19,748,415 km (0.036 R)
• M37: 19,946,931 km (0.116 R)
• M38: 21,273,565 km (0.081 R)
• M39: 23,086,542 km (0.084 R)
• M40: 23,463,528 km (0.085 R)
• M41: 23,631,676 km (0.068 R)
• M42: 24,905,802 km (0.11 R)
• M43: 25,464,849 km (0.08 R)
• M44: 25,724,251 km (0.048 R)
• M45: 25,810,869 km (0.11 R)
• M46: 27,431,911 km (0.087 R)
• M47: 28,143,099 km (0.088 R)
• M48: 28,770,214 km (0.11 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 331 - 19,125 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit