🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445.1

Radius: 9.2

Gravity: 5.26 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.55 AU - 0.83 AU

Year: 396 Days

Day: 13.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 34,522,744 km

• M1: 114,442 km (0.107 R)
• M2: 512,522 km (0.119 R)
• M3: 910,303 km (0.115 R)
• M4: 1,198,429 km (0.086 R)
• M5: 1,485,956 km (0.047 R)
• M6: 1,791,584 km (0.083 R)
• M7: 2,091,827 km (0.107 R)
• M8: 2,470,010 km (0.09 R)
• M9: 3,055,686 km (0.069 R)
• M10: 3,579,428 km (0.109 R)
• M11: 4,736,119 km (0.054 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 799.4

Radius: 12.3

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.71 AU - 0.95 AU

Year: 522 Days

Day: 5.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 34,522,744 km

• M1: 153,039 km (0.071 R)
• M2: 736,321 km (0.103 R)
• M3: 1,583,493 km (0.097 R)
• M4: 2,245,464 km (0.059 R)
• M5: 2,694,557 km (0.108 R)
• M6: 3,085,157 km (0.101 R)
• M7: 3,803,825 km (0.103 R)
• M8: 4,835,901 km (0.101 R)
• M9: 6,064,698 km (0.071 R)
• M10: 6,583,204 km (0.046 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 905.4

Radius: 8

Gravity: 14.15 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.05 AU - 1.61 AU

Year: 1059 Days

Day: 12.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 34,522,744 km

• M1: 100,829 km (0.112 R)
• M2: 353,051 km (0.084 R)
• M3: 841,039 km (0.12 R)
• M4: 1,221,018 km (0.113 R)
• M5: 1,515,277 km (0.106 R)
• M6: 1,907,074 km (0.118 R)
• M7: 2,633,521 km (0.116 R)
• M8: 4,069,212 km (0.052 R)
• M9: 4,791,470 km (0.1 R)
• M10: 7,576,235 km (0.058 R)
• M11: 10,044,749 km (0.114 R)
• M12: 10,427,121 km (0.075 R)
• M13: 11,119,909 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.1

Radius: 10.9

Gravity: 5.93 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.55 AU - 2.23 AU

Year: 1794 Days

Day: 12.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 34,522,744 km

• M1: 136,134 km (0.053 R)
• M2: 688,599 km (0.098 R)
• M3: 1,148,612 km (0.068 R)
• M4: 1,853,817 km (0.053 R)
• M5: 2,974,454 km (0.034 R)
• M6: 3,787,369 km (0.068 R)
• M7: 4,579,640 km (0.091 R)
• M8: 6,882,400 km (0.068 R)
• M9: 7,372,033 km (0.09 R)
• M10: 7,913,727 km (0.027 R)
• M11: 8,390,496 km (0.095 R)
• M12: 9,700,076 km (0.11 R)
• M13: 11,178,102 km (0.097 R)
• M14: 12,963,553 km (0.074 R)
• M15: 14,575,769 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 642.7

Radius: 10.7

Gravity: 5.61 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 2.82 AU - 2.84 AU

Year: 3286 Days

Day: 5.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 34,522,744 km

• M1: 133,142 km (0.114 R)
• M2: 505,790 km (0.089 R)
• M3: 902,674 km (0.07 R)
• M4: 1,295,069 km (0.109 R)
• M5: 2,103,795 km (0.086 R)
• M6: 2,810,944 km (0.104 R)
• M7: 3,365,802 km (0.095 R)
• M8: 4,355,991 km (0.07 R)
• M9: 4,979,216 km (0.076 R)
• M10: 6,403,836 km (0.092 R)
• M11: 7,179,351 km (0.097 R)
• M12: 8,493,270 km (0.114 R)
• M13: 9,769,040 km (0.119 R)
• M14: 12,972,379 km (0.062 R)
• M15: 14,114,410 km (0.104 R)
• M16: 14,609,578 km (0.077 R)
• M17: 14,963,078 km (0.109 R)
• M18: 15,477,994 km (0.116 R)
• M19: 17,317,450 km (0.101 R)
• M20: 17,713,585 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 667.5

Radius: 11.7

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 3.27 AU - 4.45 AU

Year: 5235 Days

Day: 12.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 34,522,744 km

• M1: 145,559 km (0.047 R)
• M2: 784,342 km (0.117 R)
• M3: 1,180,776 km (0.089 R)
• M4: 2,262,817 km (0.044 R)
• M5: 3,804,124 km (0.118 R)
• M6: 5,228,745 km (0.107 R)
• M7: 5,775,076 km (0.071 R)
• M8: 6,170,463 km (0.067 R)
• M9: 6,715,000 km (0.101 R)
• M10: 7,256,544 km (0.072 R)
• M11: 7,645,648 km (0.081 R)
• M12: 8,086,064 km (0.05 R)
• M13: 9,220,614 km (0.115 R)
• M14: 9,762,458 km (0.093 R)
• M15: 11,564,215 km (0.097 R)
• M16: 15,177,153 km (0.1 R)
• M17: 17,711,191 km (0.108 R)
• M18: 21,295,556 km (0.11 R)
• M19: 27,155,604 km (0.111 R)
• M20: 27,924,088 km (0.068 R)
• M21: 29,414,981 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 105.7

Radius: 4.2

Gravity: 5.99 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 6.42 AU - 9.54 AU

Year: 15560 Days

Day: 16.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 34,522,744 km

• M1: 52,509 km (0.066 R)
• M2: 644,168 km (0.073 R)
• M3: 910,453 km (0.104 R)
• M4: 1,150,258 km (0.114 R)
• M5: 1,542,803 km (0.115 R)
• M6: 1,855,462 km (0.073 R)
• M7: 2,533,739 km (0.063 R)
• M8: 3,816,990 km (0.085 R)
• M9: 4,132,492 km (0.079 R)
• M10: 4,624,818 km (0.059 R)
• M11: 4,815,705 km (0.108 R)
• M12: 5,510,288 km (0.102 R)
• M13: 6,743,124 km (0.073 R)
• M14: 9,344,930 km (0.025 R)
• M15: 11,277,884 km (0.031 R)
• M16: 16,726,837 km (0.111 R)
• M17: 17,241,903 km (0.026 R)
• M18: 18,919,493 km (0.115 R)
• M19: 20,410,236 km (0.114 R)
• M20: 22,207,654 km (0.042 R)
• M21: 32,099,963 km (0.094 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: 157 - 13,728 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit