🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.99

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.48 AU - 0.64 AU

Year: 275 Days

Day: 38.4 Hours

Environment

Temp: -129 °C

Axial Tilt: 26.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 591.1

Radius: 11.7

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.85 AU - 0.85 AU

Year: 514 Days

Day: 9.6 Hours

Environment

Temp: -141 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,836,855 km

• M1: 145,559 km (0.108 R)
• M2: 511,176 km (0.073 R)
• M3: 875,148 km (0.115 R)
• M4: 1,245,402 km (0.091 R)
• M5: 1,723,667 km (0.087 R)
• M6: 2,287,052 km (0.048 R)
• M7: 2,787,756 km (0.084 R)
• M8: 3,824,918 km (0.099 R)
• M9: 4,579,340 km (0.03 R)
• M10: 5,530,932 km (0.072 R)
• M11: 6,144,433 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.5

Radius: 8.6

Gravity: 11.53 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.46 AU - 2.1 AU

Year: 1558 Days

Day: 12.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 72,836,855 km

• M1: 106,962 km (0.074 R)
• M2: 527,482 km (0.098 R)
• M3: 869,912 km (0.111 R)
• M4: 1,475,633 km (0.104 R)
• M5: 1,850,675 km (0.057 R)
• M6: 2,190,861 km (0.107 R)
• M7: 2,492,899 km (0.113 R)
• M8: 2,794,339 km (0.1 R)
• M9: 4,083,872 km (0.068 R)
• M10: 5,168,756 km (0.039 R)
• M11: 5,967,758 km (0.077 R)
• M12: 6,359,405 km (0.042 R)
• M13: 6,768,256 km (0.092 R)
• M14: 7,525,670 km (0.08 R)
• M15: 8,071,104 km (0.044 R)
• M16: 8,520,197 km (0.045 R)
• M17: 9,144,619 km (0.048 R)
• M18: 9,732,538 km (0.093 R)
• M19: 11,460,543 km (0.041 R)
• M20: 12,066,714 km (0.114 R)
• M21: 12,377,578 km (0.085 R)
• M22: 12,733,920 km (0.039 R)
• M23: 13,137,685 km (0.043 R)
• M24: 14,227,655 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 965.3

Radius: 15

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.57 AU - 2.15 AU

Year: 1664 Days

Day: 8.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 72,836,855 km

• M1: 186,549 km (0.093 R)
• M2: 887,564 km (0.091 R)
• M3: 1,527,843 km (0.106 R)
• M4: 2,305,902 km (0.048 R)
• M5: 3,009,012 km (0.046 R)
• M6: 3,504,181 km (0.106 R)
• M7: 6,966,773 km (0.064 R)
• M8: 7,581,171 km (0.109 R)
• M9: 8,353,695 km (0.039 R)
• M10: 8,822,983 km (0.106 R)
• M11: 10,516,431 km (0.062 R)
• M12: 11,786,068 km (0.053 R)
• M13: 12,783,288 km (0.118 R)
• M14: 14,809,591 km (0.099 R)
• M15: 15,592,736 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 201.3

Radius: 9.3

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 2.21 AU - 3.27 AU

Year: 2975 Days

Day: 9.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,836,855 km

• M1: 115,789 km (0.052 R)
• M2: 408,552 km (0.103 R)
• M3: 835,055 km (0.09 R)
• M4: 1,144,573 km (0.076 R)
• M5: 1,596,957 km (0.113 R)
• M6: 2,510,851 km (0.086 R)
• M7: 3,424,594 km (0.112 R)
• M8: 3,774,055 km (0.073 R)
• M9: 4,277,153 km (0.108 R)
• M10: 5,330,023 km (0.107 R)
• M11: 5,755,030 km (0.112 R)
• M12: 6,878,211 km (0.093 R)
• M13: 8,405,605 km (0.055 R)
• M14: 8,889,704 km (0.118 R)
• M15: 9,296,460 km (0.11 R)
• M16: 9,683,021 km (0.083 R)
• M17: 11,483,432 km (0.114 R)
• M18: 12,540,191 km (0.088 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 505.2

Radius: 7.5

Gravity: 8.98 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 9.29 AU - 11.39 AU

Year: 21812 Days

Day: 23.2 Hours

Environment

Temp: -240 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 72,836,855 km

• M1: 93,199 km (0.101 R)
• M2: 517,459 km (0.03 R)
• M3: 796,309 km (0.067 R)
• M4: 1,086,380 km (0.08 R)
• M5: 2,567,399 km (0.084 R)
• M6: 3,807,864 km (0.101 R)
• M7: 4,925,659 km (0.081 R)
• M8: 5,998,725 km (0.078 R)
• M9: 6,546,852 km (0.101 R)
• M10: 8,138,124 km (0.082 R)
• M11: 12,936,775 km (0.054 R)
• M12: 13,213,531 km (0.093 R)
• M13: 14,806,599 km (0.11 R)
• M14: 15,416,360 km (0.083 R)
• M15: 17,346,322 km (0.096 R)
• M16: 17,682,917 km (0.072 R)
• M17: 19,162,590 km (0.115 R)
• M18: 20,348,302 km (0.116 R)
• M19: 26,571,574 km (0.096 R)
• M20: 28,044,365 km (0.113 R)
• M21: 28,742,089 km (0.093 R)
• M22: 32,278,733 km (0.107 R)
• M23: 33,432,731 km (0.106 R)
• M24: 43,517,422 km (0.102 R)
• M25: 56,185,519 km (0.071 R)
• M26: 58,416,473 km (0.088 R)
• M27: 71,104,915 km (0.044 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: 513 - 12,604 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit