🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.62 AU - 0.94 AU

Year: 265 Days

Day: 29.7 Hours

Environment

Temp: 159 °C

Axial Tilt: 9.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.35

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.26 AU - 1.46 AU

Year: 611 Days

Day: 39.7 Hours

Environment

Temp: -43 °C

Axial Tilt: 2.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 99,548,797 km

• M1: 45,927 km (0.053 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.72

Radius: 1.24

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.38 AU - 2.1 AU

Year: 884 Days

Day: 41.1 Hours

Environment

Temp: -77 °C

Axial Tilt: 17.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 99,548,797 km

• M1: 473,627 km (0.107 R)
• M2: 916,736 km (0.111 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.31

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 3.17 AU - 4.11 AU

Year: 2674 Days

Day: 17.3 Hours

Environment

Temp: -135 °C

Axial Tilt: 16.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 606.8

Radius: 8.1

Gravity: 9.25 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 3.83 AU - 4.47 AU

Year: 3255 Days

Day: 7.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 99,548,797 km

• M1: 105,167 km (0.055 R)
• M2: 490,681 km (0.065 R)
• M3: 765,642 km (0.099 R)
• M4: 1,054,515 km (0.069 R)
• M5: 1,812,677 km (0.1 R)
• M6: 2,589,689 km (0.119 R)
• M7: 2,860,012 km (0.079 R)
• M8: 3,346,953 km (0.072 R)
• M9: 3,629,992 km (0.091 R)
• M10: 3,888,049 km (0.112 R)
• M11: 4,201,157 km (0.115 R)
• M12: 4,902,173 km (0.059 R)
• M13: 6,419,544 km (0.047 R)
• M14: 7,860,919 km (0.077 R)
• M15: 8,397,527 km (0.093 R)
• M16: 8,709,887 km (0.047 R)
• M17: 9,030,027 km (0.096 R)
• M18: 9,845,784 km (0.077 R)
• M19: 10,390,021 km (0.104 R)
• M20: 12,678,270 km (0.059 R)
• M21: 13,795,766 km (0.117 R)
• M22: 14,725,816 km (0.074 R)
• M23: 17,540,799 km (0.104 R)
• M24: 18,514,831 km (0.065 R)
• M25: 19,645,492 km (0.103 R)
• M26: 21,266,534 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 843.5

Radius: 13.1

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 6.63 AU - 7.05 AU

Year: 6887 Days

Day: 14.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 99,548,797 km

• M1: 164,707 km (0.069 R)
• M2: 605,423 km (0.075 R)
• M3: 1,038,957 km (0.11 R)
• M4: 1,482,814 km (0.087 R)
• M5: 1,948,213 km (0.101 R)
• M6: 2,716,847 km (0.117 R)
• M7: 3,335,733 km (0.089 R)
• M8: 3,847,956 km (0.04 R)
• M9: 5,332,865 km (0.056 R)
• M10: 6,342,351 km (0.092 R)
• M11: 7,021,825 km (0.107 R)
• M12: 8,696,573 km (0.05 R)
• M13: 9,536,116 km (0.065 R)
• M14: 10,188,662 km (0.106 R)
• M15: 11,845,459 km (0.114 R)
• M16: 12,381,169 km (0.096 R)
• M17: 13,215,326 km (0.072 R)
• M18: 14,810,638 km (0.045 R)
• M19: 16,663,557 km (0.103 R)
• M20: 17,132,995 km (0.078 R)
• M21: 25,633,595 km (0.115 R)
• M22: 29,350,953 km (0.062 R)
• M23: 30,433,144 km (0.103 R)
• M24: 30,933,698 km (0.085 R)
• M25: 34,161,123 km (0.114 R)
• M26: 37,263,483 km (0.108 R)
• M27: 39,354,263 km (0.112 R)
• M28: 40,068,294 km (0.025 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 687.8

Radius: 5.2

Gravity: 25.44 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 15.9 AU - 20.48 AU

Year: 29869 Days

Day: 15.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 99,548,797 km

• M1: 64,776 km (0.115 R)
• M2: 249,828 km (0.038 R)
• M3: 607,068 km (0.054 R)
• M4: 986,000 km (0.105 R)
• M5: 2,490,954 km (0.109 R)
• M6: 6,195,895 km (0.1 R)
• M7: 7,175,163 km (0.054 R)
• M8: 7,382,655 km (0.081 R)
• M9: 7,864,510 km (0.083 R)
• M10: 10,131,965 km (0.084 R)
• M11: 10,459,434 km (0.083 R)
• M12: 13,417,134 km (0.116 R)
• M13: 14,959,488 km (0.096 R)
• M14: 16,080,574 km (0.101 R)
• M15: 17,349,164 km (0.107 R)
• M16: 23,092,825 km (0.067 R)
• M17: 23,318,568 km (0.044 R)
• M18: 24,822,176 km (0.031 R)
• M19: 36,581,467 km (0.087 R)
• M20: 39,244,757 km (0.101 R)
• M21: 40,870,288 km (0.115 R)
• M22: 41,532,857 km (0.061 R)
• M23: 43,563,648 km (0.098 R)
• M24: 46,372,946 km (0.092 R)
• M25: 55,723,711 km (0.108 R)
• M26: 56,538,122 km (0.059 R)
• M27: 57,154,315 km (0.088 R)
• M28: 60,301,854 km (0.055 R)
• M29: 63,784,643 km (0.109 R)
• M30: 64,229,247 km (0.063 R)
• M31: 66,939,961 km (0.072 R)
• M32: 74,786,220 km (0.112 R)
• M33: 77,027,644 km (0.09 R)
• M34: 79,057,388 km (0.087 R)
• M35: 88,081,880 km (0.067 R)
• M36: 89,186,660 km (0.06 R)
• M37: 94,560,814 km (0.103 R)
• M38: 95,719,150 km (0.089 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 294 - 12,384 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit