🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.96

Radius: 1.54

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.58 AU - 0.64 AU

Year: 303 Days

Day: 33.9 Hours

Environment

Temp: -120 °C

Axial Tilt: 20.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,618,498 km

• M1: 83,176 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 475.1

Radius: 10.6

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.81 AU - 0.85 AU

Year: 481 Days

Day: 6.6 Hours

Environment

Temp: -157 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,618,498 km

• M1: 132,095 km (0.096 R)
• M2: 598,541 km (0.117 R)
• M3: 1,038,359 km (0.077 R)
• M4: 1,772,136 km (0.095 R)
• M5: 2,843,108 km (0.051 R)
• M6: 3,275,595 km (0.115 R)
• M7: 3,714,366 km (0.104 R)
• M8: 4,219,408 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 206.9

Radius: 10.3

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.89 AU - 1.29 AU

Year: 724 Days

Day: 5.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,618,498 km

• M1: 128,056 km (0.097 R)
• M2: 454,179 km (0.11 R)
• M3: 886,517 km (0.062 R)
• M4: 1,254,378 km (0.085 R)
• M5: 1,791,285 km (0.086 R)
• M6: 3,574,492 km (0.112 R)
• M7: 4,039,741 km (0.051 R)
• M8: 4,880,331 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355.5

Radius: 13.9

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 2.17 AU - 2.57 AU

Year: 2320 Days

Day: 9.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 70,618,498 km

• M1: 173,085 km (0.044 R)
• M2: 837,748 km (0.112 R)
• M3: 1,712,896 km (0.068 R)
• M4: 2,312,185 km (0.082 R)
• M5: 3,020,381 km (0.114 R)
• M6: 5,581,347 km (0.092 R)
• M7: 7,124,150 km (0.112 R)
• M8: 8,125,109 km (0.092 R)
• M9: 8,904,813 km (0.082 R)
• M10: 10,718,687 km (0.05 R)
• M11: 12,415,726 km (0.11 R)
• M12: 14,285,849 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.4

Radius: 10.6

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 2.58 AU - 2.88 AU

Year: 2868 Days

Day: 8 Hours

Environment

Temp: -204 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,618,498 km

• M1: 132,993 km (0.064 R)
• M2: 473,926 km (0.111 R)
• M3: 812,765 km (0.066 R)
• M4: 1,591,273 km (0.089 R)
• M5: 2,488,112 km (0.107 R)
• M6: 3,098,621 km (0.032 R)
• M7: 4,025,380 km (0.078 R)
• M8: 4,800,895 km (0.088 R)
• M9: 5,616,951 km (0.099 R)
• M10: 6,902,745 km (0.067 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 929.4

Radius: 13.9

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 4.02 AU - 6.62 AU

Year: 7802 Days

Day: 6.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 70,618,498 km

• M1: 172,935 km (0.12 R)
• M2: 696,827 km (0.082 R)
• M3: 1,299,706 km (0.073 R)
• M4: 1,841,999 km (0.105 R)
• M5: 2,423,635 km (0.11 R)
• M6: 2,975,950 km (0.076 R)
• M7: 3,563,571 km (0.105 R)
• M8: 4,015,057 km (0.117 R)
• M9: 4,448,592 km (0.096 R)
• M10: 5,475,731 km (0.048 R)
• M11: 7,071,491 km (0.115 R)
• M12: 8,600,980 km (0.067 R)
• M13: 11,005,317 km (0.067 R)
• M14: 13,828,528 km (0.116 R)
• M15: 14,383,686 km (0.065 R)
• M16: 17,960,870 km (0.077 R)
• M17: 18,548,042 km (0.118 R)
• M18: 20,545,323 km (0.084 R)
• M19: 21,432,139 km (0.091 R)
• M20: 24,513,705 km (0.112 R)
• M21: 25,054,651 km (0.105 R)
• M22: 27,879,508 km (0.067 R)
• M23: 29,571,310 km (0.103 R)
• M24: 30,390,807 km (0.115 R)
• M25: 35,057,064 km (0.077 R)
• M26: 37,619,975 km (0.099 R)
• M27: 40,681,196 km (0.108 R)

Asteroid Belt

Center: 6.86 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 914.2

Radius: 4.5

Gravity: 45.15 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 7.69 AU - 9.11 AU

Year: 15479 Days

Day: 15.4 Hours

Environment

Temp: -235 °C

Axial Tilt: 81.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 70,618,498 km

• M1: 56,548 km (0.078 R)
• M2: 294,109 km (0.101 R)
• M3: 517,459 km (0.055 R)
• M4: 1,019,210 km (0.104 R)
• M5: 1,588,430 km (0.104 R)
• M6: 2,455,948 km (0.085 R)
• M7: 3,572,547 km (0.109 R)
• M8: 4,306,324 km (0.117 R)
• M9: 4,919,227 km (0.107 R)
• M10: 5,062,990 km (0.071 R)
• M11: 6,358,209 km (0.113 R)
• M12: 7,957,560 km (0.083 R)
• M13: 10,921,991 km (0.08 R)
• M14: 21,660,874 km (0.094 R)
• M15: 29,115,785 km (0.097 R)
• M16: 29,350,803 km (0.045 R)
• M17: 40,695,109 km (0.113 R)
• M18: 44,469,613 km (0.119 R)
• M19: 45,409,087 km (0.064 R)
• M20: 47,815,219 km (0.096 R)
• M21: 49,968,232 km (0.075 R)
• M22: 56,448,064 km (0.046 R)
• M23: 62,680,461 km (0.111 R)
• M24: 70,618,572 km (0.092 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 304 - 11,984 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit