🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.71

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.7 AU - 0.74 AU

Year: 222 Days

Day: 45.1 Hours

Environment

Temp: 134 °C

Axial Tilt: 4.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.82

Radius: 1.88

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.86 AU - 1.12 AU

Year: 358 Days

Day: 28.4 Hours

Environment

Temp: 21 °C

Axial Tilt: 37.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.72

Radius: 0.88

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.07 AU - 1.53 AU

Year: 539 Days

Day: 15.6 Hours

Environment

Temp: -2 °C

Axial Tilt: 23.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.78

Radius: 0.91

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.35 AU - 1.37 AU

Year: 576 Days

Day: 16.3 Hours

Environment

Temp: -8 °C

Axial Tilt: 33.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.78

Radius: 0.91

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.25 AU - 1.83 AU

Year: 695 Days

Day: 18.7 Hours

Environment

Temp: -32 °C

Axial Tilt: 37.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.42

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.67 AU - 1.69 AU

Year: 791 Days

Day: 42.6 Hours

Environment

Temp: -43 °C

Axial Tilt: 21.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 88,134,430 km

• M1: 387,010 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 223.8

Radius: 9.4

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 8.42 AU - 10.16 AU

Year: 10291 Days

Day: 14.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 88,134,430 km

• M1: 119,977 km (0.082 R)
• M2: 459,565 km (0.118 R)
• M3: 829,670 km (0.096 R)
• M4: 1,125,574 km (0.118 R)
• M5: 1,681,480 km (0.106 R)
• M6: 2,636,962 km (0.113 R)
• M7: 3,488,473 km (0.104 R)
• M8: 3,825,517 km (0.102 R)
• M9: 4,409,996 km (0.073 R)
• M10: 5,397,192 km (0.092 R)
• M11: 8,581,981 km (0.063 R)
• M12: 9,031,672 km (0.116 R)
• M13: 9,326,081 km (0.062 R)
• M14: 14,548,692 km (0.094 R)
• M15: 18,538,767 km (0.036 R)
• M16: 19,780,279 km (0.086 R)
• M17: 22,122,832 km (0.093 R)
• M18: 31,293,631 km (0.102 R)
• M19: 32,066,603 km (0.118 R)
• M20: 33,050,508 km (0.086 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 770.1

Radius: 10.4

Gravity: 7.12 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 9.27 AU - 12.83 AU

Year: 13350 Days

Day: 13.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 88,134,430 km

• M1: 130,449 km (0.042 R)
• M2: 486,941 km (0.103 R)
• M3: 844,031 km (0.117 R)
• M4: 1,277,117 km (0.085 R)
• M5: 1,943,127 km (0.051 R)
• M6: 2,541,369 km (0.086 R)
• M7: 3,309,105 km (0.113 R)
• M8: 5,846,734 km (0.073 R)
• M9: 6,429,716 km (0.045 R)
• M10: 7,354,381 km (0.103 R)
• M11: 7,803,025 km (0.065 R)
• M12: 9,414,643 km (0.103 R)
• M13: 10,106,832 km (0.047 R)
• M14: 14,430,659 km (0.045 R)
• M15: 17,464,803 km (0.078 R)
• M16: 18,264,853 km (0.12 R)
• M17: 19,680,497 km (0.067 R)
• M18: 23,394,115 km (0.102 R)
• M19: 25,062,281 km (0.088 R)
• M20: 25,771,674 km (0.088 R)
• M21: 33,864,769 km (0.06 R)
• M22: 34,856,902 km (0.11 R)
• M23: 36,252,501 km (0.09 R)
• M24: 43,068,928 km (0.072 R)
• M25: 46,321,335 km (0.046 R)
• M26: 48,162,735 km (0.111 R)
• M27: 50,854,001 km (0.077 R)
• M28: 53,644,151 km (0.039 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 647

Radius: 6.8

Gravity: 13.99 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 13.1 AU - 21.06 AU

Year: 25654 Days

Day: 22.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 88,134,430 km

• M1: 84,523 km (0.11 R)
• M2: 306,077 km (0.106 R)
• M3: 624,122 km (0.117 R)
• M4: 1,286,542 km (0.062 R)
• M5: 2,996,894 km (0.097 R)
• M6: 4,261,445 km (0.098 R)
• M7: 4,764,991 km (0.09 R)
• M8: 6,108,829 km (0.08 R)
• M9: 7,948,733 km (0.105 R)
• M10: 10,129,721 km (0.12 R)
• M11: 10,443,577 km (0.098 R)
• M12: 10,893,867 km (0.098 R)
• M13: 13,567,629 km (0.11 R)
• M14: 13,949,253 km (0.071 R)
• M15: 16,563,027 km (0.098 R)
• M16: 17,087,069 km (0.068 R)
• M17: 20,665,749 km (0.085 R)
• M18: 21,171,091 km (0.09 R)
• M19: 22,843,296 km (0.067 R)
• M20: 23,383,344 km (0.077 R)
• M21: 30,415,341 km (0.113 R)
• M22: 31,865,693 km (0.112 R)
• M23: 37,528,571 km (0.074 R)
• M24: 38,583,984 km (0.1 R)
• M25: 39,814,277 km (0.082 R)
• M26: 40,438,997 km (0.051 R)
• M27: 46,704,754 km (0.104 R)
• M28: 49,346,354 km (0.077 R)
• M29: 50,978,167 km (0.043 R)
• M30: 58,265,827 km (0.078 R)
• M31: 60,703,824 km (0.084 R)
• M32: 62,576,341 km (0.111 R)
• M33: 64,059,155 km (0.081 R)
• M34: 69,320,811 km (0.032 R)
• M35: 76,293,717 km (0.101 R)
• M36: 82,956,358 km (0.116 R)

Kuiper Belt

Range: 30.2 - 55.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 283 - 14,898 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit