🌌 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: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.34

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.67 AU - 0.69 AU

Year: 204 Days

Day: 35.6 Hours

Environment

Temp: 134 °C

Axial Tilt: 26.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 40,800,449 km

• M1: 43,832 km (0.069 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.56

Radius: 1.46

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.91 AU - 1.01 AU

Year: 342 Days

Day: 32.4 Hours

Environment

Temp: 98 °C

Axial Tilt: 171.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 4.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.82

Radius: 1.88

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 3.81 AU - 4.23 AU

Year: 2929 Days

Day: 14.1 Hours

Environment

Temp: -115 °C

Axial Tilt: 5.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 8.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 576.2

Radius: 13.8

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 6.73 AU - 10.91 AU

Year: 9520 Days

Day: 5.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 40,800,449 km

• M1: 171,888 km (0.096 R)
• M2: 911,949 km (0.034 R)
• M3: 1,561,054 km (0.065 R)
• M4: 3,112,085 km (0.109 R)
• M5: 4,361,825 km (0.079 R)
• M6: 5,590,921 km (0.057 R)
• M7: 10,317,017 km (0.111 R)
• M8: 11,820,925 km (0.065 R)
• M9: 12,768,029 km (0.07 R)
• M10: 19,851,787 km (0.11 R)
• M11: 20,790,065 km (0.115 R)
• M12: 22,670,809 km (0.07 R)
• M13: 35,708,862 km (0.116 R)
• M14: 36,282,720 km (0.101 R)

Planet 5 - Ice Giant

Semi-Major Axis: 13.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 132.4

Radius: 3.8

Gravity: 9.17 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 12.35 AU - 15.13 AU

Year: 18510 Days

Day: 22.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 40,800,449 km

• M1: 47,423 km (0.117 R)
• M2: 473,627 km (0.11 R)
• M3: 638,783 km (0.064 R)
• M4: 877,840 km (0.03 R)
• M5: 1,086,230 km (0.053 R)
• M6: 1,702,125 km (0.117 R)
• M7: 2,678,251 km (0.069 R)
• M8: 3,051,647 km (0.063 R)
• M9: 3,700,154 km (0.101 R)
• M10: 3,850,200 km (0.111 R)
• M11: 4,519,800 km (0.058 R)
• M12: 4,691,539 km (0.092 R)
• M13: 5,550,679 km (0.072 R)
• M14: 5,714,489 km (0.114 R)
• M15: 6,225,216 km (0.061 R)
• M16: 6,366,437 km (0.117 R)
• M17: 6,877,613 km (0.1 R)
• M18: 14,361,695 km (0.056 R)
• M19: 15,754,301 km (0.063 R)
• M20: 16,550,461 km (0.077 R)
• M21: 22,722,421 km (0.118 R)
• M22: 23,909,779 km (0.037 R)
• M23: 24,871,095 km (0.115 R)
• M24: 25,496,115 km (0.087 R)
• M25: 28,293,744 km (0.116 R)
• M26: 33,184,248 km (0.094 R)
• M27: 36,739,741 km (0.099 R)
• M28: 36,970,122 km (0.039 R)
• M29: 38,018,204 km (0.057 R)
• M30: 40,663,693 km (0.095 R)
• M31: 41,033,649 km (0.098 R)
• M32: 41,405,848 km (0.112 R)

Planet 6 - Ice Giant

Semi-Major Axis: 15.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 397.3

Radius: 6.2

Gravity: 10.34 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 13.56 AU - 16.68 AU

Year: 21368 Days

Day: 24.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 40,800,449 km

• M1: 77,193 km (0.117 R)
• M2: 283,189 km (0.111 R)
• M3: 538,702 km (0.115 R)
• M4: 744,698 km (0.092 R)
• M5: 1,454,690 km (0.111 R)
• M6: 1,726,210 km (0.045 R)
• M7: 2,012,391 km (0.025 R)
• M8: 2,393,117 km (0.084 R)
• M9: 4,675,831 km (0.046 R)
• M10: 7,086,750 km (0.095 R)
• M11: 7,402,551 km (0.031 R)
• M12: 7,870,045 km (0.114 R)
• M13: 8,607,712 km (0.041 R)
• M14: 9,177,530 km (0.117 R)
• M15: 11,400,854 km (0.089 R)
• M16: 15,484,726 km (0.11 R)
• M17: 17,522,548 km (0.111 R)
• M18: 18,520,815 km (0.112 R)
• M19: 19,120,403 km (0.027 R)
• M20: 20,904,507 km (0.098 R)
• M21: 27,356,065 km (0.05 R)
• M22: 29,384,313 km (0.074 R)
• M23: 33,484,940 km (0.07 R)
• M24: 40,469,216 km (0.113 R)
• M25: 41,187,884 km (0.05 R)
• M26: 41,768,922 km (0.116 R)
• M27: 42,061,536 km (0.116 R)
• M28: 45,216,704 km (0.089 R)
• M29: 50,819,593 km (0.103 R)
• M30: 51,655,995 km (0.065 R)
• M31: 54,918,126 km (0.117 R)
• M32: 62,420,011 km (0.079 R)
• M33: 63,959,373 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 20.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 39.8

Radius: 7.5

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 17.55 AU - 22.51 AU

Year: 32580 Days

Day: 21.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,800,449 km

• M1: 93,349 km (0.103 R)
• M2: 967,898 km (0.105 R)
• M3: 2,105,440 km (0.1 R)
• M4: 3,066,308 km (0.105 R)
• M5: 5,556,963 km (0.046 R)
• M6: 5,950,106 km (0.111 R)
• M7: 13,177,328 km (0.093 R)
• M8: 16,993,271 km (0.092 R)
• M9: 20,779,443 km (0.085 R)
• M10: 21,566,927 km (0.106 R)
• M11: 28,693,919 km (0.045 R)
• M12: 28,984,438 km (0.085 R)
• M13: 36,221,085 km (0.119 R)

Kuiper Belt

Range: 30.2 - 51.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 419 - 15,529 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit