🌌 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: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.14

Radius: 1.05

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.46 AU - 0.6 AU

Year: 143 Days

Day: 13.9 Hours

Environment

Temp: 227 °C

Axial Tilt: 4.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.22

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.58 AU - 0.82 AU

Year: 217 Days

Day: 12.4 Hours

Environment

Temp: 134 °C

Axial Tilt: 25.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.55

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.8 AU - 2.2 AU

Year: 1049 Days

Day: 30.7 Hours

Environment

Temp: -68 °C

Axial Tilt: 106.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 6.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 135.9

Radius: 13.5

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 6.28 AU - 7.5 AU

Year: 6707 Days

Day: 6 Hours

Environment

Temp: -164 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 26,755,401 km

• M1: 167,998 km (0.104 R)
• M2: 801,097 km (0.101 R)
• M3: 1,371,214 km (0.118 R)
• M4: 2,489,009 km (0.111 R)
• M5: 3,349,945 km (0.112 R)
• M6: 4,145,357 km (0.026 R)
• M7: 4,577,246 km (0.112 R)
• M8: 5,456,732 km (0.113 R)
• M9: 7,210,468 km (0.084 R)
• M10: 9,169,751 km (0.046 R)
• M11: 11,379,012 km (0.064 R)
• M12: 12,276,001 km (0.077 R)
• M13: 13,358,342 km (0.048 R)
• M14: 14,405,527 km (0.084 R)
• M15: 20,726,935 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.2

Radius: 13.6

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 5.78 AU - 9.22 AU

Year: 7617 Days

Day: 6.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 26,755,401 km

• M1: 169,195 km (0.062 R)
• M2: 647,908 km (0.046 R)
• M3: 1,101,788 km (0.103 R)
• M4: 1,818,512 km (0.104 R)
• M5: 2,407,479 km (0.093 R)
• M6: 2,831,738 km (0.104 R)
• M7: 3,674,722 km (0.079 R)
• M8: 6,807,451 km (0.089 R)
• M9: 9,303,492 km (0.073 R)
• M10: 10,970,161 km (0.06 R)
• M11: 13,418,779 km (0.115 R)
• M12: 15,360,410 km (0.114 R)
• M13: 15,965,534 km (0.042 R)
• M14: 17,483,054 km (0.087 R)
• M15: 18,411,608 km (0.103 R)
• M16: 21,770,529 km (0.116 R)
• M17: 28,484,183 km (0.048 R)
• M18: 31,769,950 km (0.06 R)
• M19: 32,555,040 km (0.053 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470.5

Radius: 12.3

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 6.8 AU - 8.31 AU

Year: 7694 Days

Day: 12.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 26,755,401 km

• M1: 153,039 km (0.103 R)
• M2: 1,226,852 km (0.111 R)
• M3: 1,748,201 km (0.12 R)
• M4: 2,139,399 km (0.093 R)
• M5: 2,983,730 km (0.051 R)
• M6: 3,396,320 km (0.075 R)
• M7: 3,966,139 km (0.081 R)
• M8: 4,441,262 km (0.084 R)
• M9: 5,095,752 km (0.077 R)
• M10: 6,944,932 km (0.098 R)
• M11: 8,457,665 km (0.096 R)
• M12: 9,291,673 km (0.043 R)
• M13: 9,862,688 km (0.086 R)
• M14: 10,597,513 km (0.069 R)
• M15: 11,075,030 km (0.077 R)
• M16: 15,248,511 km (0.082 R)
• M17: 16,866,861 km (0.025 R)
• M18: 18,528,145 km (0.097 R)
• M19: 18,942,681 km (0.105 R)
• M20: 19,718,645 km (0.055 R)
• M21: 20,296,093 km (0.047 R)
• M22: 21,108,708 km (0.098 R)
• M23: 28,226,575 km (0.117 R)
• M24: 28,868,051 km (0.042 R)
• M25: 32,923,200 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 109.5

Radius: 11.3

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 11.2 AU - 12.36 AU

Year: 14994 Days

Day: 11.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 26,755,401 km

• M1: 140,622 km (0.104 R)
• M2: 683,662 km (0.066 R)
• M3: 1,263,055 km (0.073 R)
• M4: 2,138,352 km (0.085 R)
• M5: 3,253,903 km (0.085 R)
• M6: 3,823,871 km (0.11 R)
• M7: 7,844,015 km (0.063 R)
• M8: 10,953,855 km (0.088 R)
• M9: 11,982,191 km (0.104 R)
• M10: 13,452,140 km (0.118 R)
• M11: 13,837,653 km (0.094 R)
• M12: 27,088,584 km (0.086 R)
• M13: 31,985,670 km (0.092 R)
• M14: 32,476,052 km (0.094 R)
• M15: 34,079,143 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 30.9

Radius: 6.2

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 12.55 AU - 15.65 AU

Year: 19635 Days

Day: 22.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 26,755,401 km

• M1: 81,082 km (0.047 R)
• M2: 489,035 km (0.075 R)
• M3: 1,071,121 km (0.107 R)
• M4: 1,599,500 km (0.113 R)
• M5: 2,427,973 km (0.069 R)
• M6: 3,064,512 km (0.095 R)
• M7: 13,634,200 km (0.056 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 242 - 16,301 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit