🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.8

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.68 AU - 0.92 AU

Year: 267 Days

Day: 45.5 Hours

Environment

Temp: 156 °C

Axial Tilt: 15 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.86

Radius: 1.72

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.22 AU - 1.7 AU

Year: 658 Days

Day: 32.8 Hours

Environment

Temp: -49 °C

Axial Tilt: 1.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 49,279,425 km

• M1: 182,958 km (0.089 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.53

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 2.69 AU - 3.57 AU

Year: 2064 Days

Day: 35.6 Hours

Environment

Temp: -111 °C

Axial Tilt: 13.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.83 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 515.1

Radius: 8.1

Gravity: 7.85 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 3.4 AU - 5.64 AU

Year: 3582 Days

Day: 10.1 Hours

Environment

Temp: -129 °C

Axial Tilt: 175.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 49,279,425 km

• M1: 101,278 km (0.084 R)
• M2: 414,685 km (0.074 R)
• M3: 691,591 km (0.117 R)
• M4: 968,497 km (0.077 R)
• M5: 1,369,269 km (0.105 R)
• M6: 1,676,244 km (0.077 R)
• M7: 1,952,252 km (0.045 R)
• M8: 3,451,971 km (0.104 R)
• M9: 3,842,122 km (0.12 R)
• M10: 4,664,312 km (0.049 R)
• M11: 4,947,052 km (0.088 R)
• M12: 5,704,316 km (0.065 R)
• M13: 6,138,749 km (0.039 R)
• M14: 6,565,701 km (0.027 R)
• M15: 7,135,070 km (0.113 R)
• M16: 8,933,237 km (0.082 R)
• M17: 9,745,703 km (0.117 R)
• M18: 11,222,084 km (0.077 R)
• M19: 15,948,779 km (0.106 R)
• M20: 16,538,344 km (0.119 R)
• M21: 17,309,670 km (0.116 R)
• M22: 17,875,001 km (0.094 R)
• M23: 18,923,682 km (0.062 R)
• M24: 19,402,844 km (0.116 R)
• M25: 20,074,688 km (0.112 R)
• M26: 20,447,635 km (0.094 R)
• M27: 21,271,471 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.5

Radius: 9.3

Gravity: 8.43 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 6.77 AU - 8.24 AU

Year: 7657 Days

Day: 12.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 49,279,425 km

• M1: 116,537 km (0.051 R)
• M2: 515,963 km (0.091 R)
• M3: 928,704 km (0.108 R)
• M4: 1,517,970 km (0.064 R)
• M5: 1,882,240 km (0.108 R)
• M6: 2,501,875 km (0.109 R)
• M7: 5,100,539 km (0.11 R)
• M8: 6,163,283 km (0.092 R)
• M9: 7,444,738 km (0.102 R)
• M10: 7,761,138 km (0.108 R)
• M11: 8,336,341 km (0.101 R)
• M12: 8,939,670 km (0.081 R)
• M13: 11,231,509 km (0.118 R)
• M14: 14,923,285 km (0.11 R)
• M15: 17,419,176 km (0.034 R)
• M16: 27,577,320 km (0.084 R)
• M17: 31,823,057 km (0.092 R)
• M18: 38,330,415 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999.9

Radius: 13

Gravity: 5.92 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 6.87 AU - 10.49 AU

Year: 9533 Days

Day: 12.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 49,279,425 km

• M1: 161,715 km (0.075 R)
• M2: 588,069 km (0.059 R)
• M3: 1,523,355 km (0.063 R)
• M4: 1,980,825 km (0.071 R)
• M5: 2,952,763 km (0.101 R)
• M6: 3,572,696 km (0.034 R)
• M7: 5,788,839 km (0.114 R)
• M8: 6,764,367 km (0.049 R)
• M9: 8,614,593 km (0.115 R)
• M10: 11,788,911 km (0.082 R)
• M11: 13,104,025 km (0.067 R)
• M12: 15,325,703 km (0.057 R)
• M13: 16,526,077 km (0.11 R)
• M14: 17,560,845 km (0.119 R)
• M15: 18,094,162 km (0.115 R)
• M16: 20,253,457 km (0.096 R)
• M17: 24,887,401 km (0.098 R)
• M18: 27,552,038 km (0.094 R)
• M19: 28,272,801 km (0.085 R)
• M20: 28,900,513 km (0.12 R)
• M21: 30,183,914 km (0.111 R)
• M22: 31,953,956 km (0.12 R)
• M23: 32,635,075 km (0.112 R)
• M24: 38,311,117 km (0.037 R)
• M25: 38,951,246 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.7

Radius: 14.2

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 8.02 AU - 12.92 AU

Year: 12629 Days

Day: 8.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 49,279,425 km

• M1: 176,974 km (0.057 R)
• M2: 881,131 km (0.119 R)
• M3: 1,556,117 km (0.103 R)
• M4: 2,564,257 km (0.119 R)
• M5: 3,202,741 km (0.117 R)
• M6: 4,801,942 km (0.088 R)
• M7: 6,277,725 km (0.064 R)
• M8: 7,120,709 km (0.096 R)
• M9: 9,079,992 km (0.063 R)
• M10: 10,007,050 km (0.057 R)
• M11: 11,431,970 km (0.09 R)
• M12: 11,992,813 km (0.049 R)
• M13: 13,974,984 km (0.084 R)
• M14: 15,412,620 km (0.041 R)
• M15: 16,237,353 km (0.064 R)
• M16: 18,275,923 km (0.085 R)
• M17: 19,993,755 km (0.034 R)
• M18: 21,902,175 km (0.054 R)
• M19: 24,386,248 km (0.07 R)
• M20: 30,225,502 km (0.043 R)
• M21: 31,408,671 km (0.071 R)
• M22: 35,261,415 km (0.027 R)
• M23: 39,165,321 km (0.067 R)
• M24: 39,672,757 km (0.091 R)
• M25: 42,010,822 km (0.094 R)
• M26: 46,675,284 km (0.059 R)
• M27: 48,692,611 km (0.117 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: 198 - 14,603 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit