🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 78.6

Radius: 14.8

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.45 AU - 0.61 AU

Year: 271 Days

Day: 13.6 Hours

Environment

Temp: -132 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 35,145,800 km

• M1: 184,005 km (0.076 R)
• M2: 735,573 km (0.1 R)
• M3: 2,034,381 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370.3

Radius: 8.9

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.53 AU - 0.71 AU

Year: 343 Days

Day: 12.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,145,800 km

• M1: 110,852 km (0.05 R)
• M2: 420,968 km (0.113 R)
• M3: 714,928 km (0.108 R)
• M4: 1,118,842 km (0.119 R)
• M5: 1,671,756 km (0.112 R)
• M6: 2,282,864 km (0.064 R)
• M7: 2,671,818 km (0.092 R)
• M8: 2,987,469 km (0.118 R)
• M9: 3,464,836 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 122.2

Radius: 14.2

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.69 AU - 0.79 AU

Year: 447 Days

Day: 9 Hours

Environment

Temp: -169 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 35,145,800 km

• M1: 176,675 km (0.086 R)
• M2: 622,178 km (0.066 R)
• M3: 1,208,452 km (0.115 R)
• M4: 1,790,537 km (0.103 R)
• M5: 2,419,147 km (0.116 R)
• M6: 3,011,555 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 47.2

Radius: 15

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.75 AU - 0.75 AU

Year: 457 Days

Day: 5.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 35,145,800 km

• M1: 186,549 km (0.12 R)
• M2: 676,033 km (0.049 R)
• M3: 1,151,305 km (0.101 R)
• M4: 1,914,703 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 14.9

Radius: 14

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.67 AU - 0.97 AU

Year: 522 Days

Day: 5.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 35,145,800 km

• M1: 174,581 km (0.104 R)
• M2: 645,964 km (0.025 R)
• M3: 1,185,713 km (0.103 R)
• M4: 1,744,760 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349.4

Radius: 11.2

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.28 AU - 2.06 AU

Year: 1517 Days

Day: 5.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 116.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 35,145,800 km

• M1: 140,921 km (0.062 R)
• M2: 495,019 km (0.083 R)
• M3: 874,998 km (0.119 R)
• M4: 1,758,523 km (0.085 R)
• M5: 2,393,267 km (0.056 R)
• M6: 3,011,555 km (0.119 R)
• M7: 3,749,521 km (0.099 R)
• M8: 4,254,414 km (0.115 R)
• M9: 4,916,235 km (0.111 R)
• M10: 5,381,335 km (0.108 R)
• M11: 5,854,513 km (0.057 R)
• M12: 6,400,246 km (0.055 R)
• M13: 7,849,101 km (0.113 R)
• M14: 8,595,594 km (0.037 R)
• M15: 9,301,547 km (0.109 R)
• M16: 10,385,533 km (0.066 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 917.7

Radius: 9.3

Gravity: 10.61 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.73 AU - 2.27 AU

Year: 1988 Days

Day: 13.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 35,145,800 km

• M1: 118,482 km (0.047 R)
• M2: 415,732 km (0.111 R)
• M3: 729,589 km (0.052 R)
• M4: 1,160,281 km (0.092 R)
• M5: 1,713,045 km (0.089 R)
• M6: 2,311,138 km (0.106 R)
• M7: 3,393,029 km (0.089 R)
• M8: 3,714,515 km (0.116 R)
• M9: 4,316,347 km (0.112 R)
• M10: 5,664,972 km (0.088 R)
• M11: 6,516,633 km (0.106 R)
• M12: 7,333,437 km (0.118 R)
• M13: 9,034,215 km (0.116 R)
• M14: 12,512,216 km (0.102 R)
• M15: 13,284,141 km (0.118 R)
• M16: 13,726,502 km (0.117 R)
• M17: 15,112,826 km (0.105 R)
• M18: 16,640,968 km (0.049 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 295.1

Radius: 6

Gravity: 8.2 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 5.49 AU - 5.91 AU

Year: 9566 Days

Day: 18.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 35,145,800 km

• M1: 75,098 km (0.097 R)
• M2: 272,418 km (0.079 R)
• M3: 484,847 km (0.11 R)
• M4: 757,264 km (0.032 R)
• M5: 1,129,614 km (0.109 R)
• M6: 1,465,311 km (0.087 R)
• M7: 1,738,327 km (0.101 R)
• M8: 2,921,796 km (0.035 R)
• M9: 3,185,986 km (0.092 R)
• M10: 3,739,049 km (0.099 R)
• M11: 11,545,814 km (0.102 R)
• M12: 11,797,288 km (0.12 R)
• M13: 12,001,190 km (0.09 R)
• M14: 12,363,666 km (0.065 R)
• M15: 12,893,990 km (0.115 R)
• M16: 13,219,515 km (0.115 R)
• M17: 16,336,536 km (0.075 R)
• M18: 17,563,837 km (0.106 R)
• M19: 18,031,031 km (0.09 R)
• M20: 19,911,177 km (0.115 R)
• M21: 24,384,303 km (0.091 R)
• M22: 24,715,513 km (0.078 R)
• M23: 25,556,403 km (0.088 R)
• M24: 25,983,953 km (0.113 R)
• M25: 27,741,878 km (0.095 R)
• M26: 29,671,541 km (0.025 R)
• M27: 30,621,039 km (0.118 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 230 - 18,089 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit