🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.8

Radius: 13.5

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.72 AU - 0.9 AU

Year: 503 Days

Day: 10.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 34,712,791 km

• M1: 178,021 km (0.069 R)
• M2: 632,799 km (0.057 R)
• M3: 1,167,013 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 205.9

Radius: 12.5

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.08 AU - 1.32 AU

Year: 907 Days

Day: 12.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 34,712,791 km

• M1: 155,432 km (0.078 R)
• M2: 566,527 km (0.108 R)
• M3: 975,229 km (0.113 R)
• M4: 1,402,929 km (0.071 R)
• M5: 1,941,930 km (0.045 R)
• M6: 2,637,410 km (0.059 R)
• M7: 3,419,807 km (0.101 R)
• M8: 3,826,265 km (0.116 R)
• M9: 4,394,737 km (0.054 R)
• M10: 5,754,132 km (0.096 R)
• M11: 6,184,675 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.3

Radius: 12.8

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.14 AU - 1.42 AU

Year: 1000 Days

Day: 11.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 34,712,791 km

• M1: 159,172 km (0.081 R)
• M2: 630,854 km (0.087 R)
• M3: 1,185,563 km (0.11 R)
• M4: 1,782,907 km (0.068 R)
• M5: 2,227,064 km (0.109 R)
• M6: 2,745,869 km (0.116 R)
• M7: 3,232,062 km (0.103 R)
• M8: 3,885,356 km (0.076 R)
• M9: 5,086,328 km (0.037 R)
• M10: 5,497,273 km (0.101 R)
• M11: 6,188,266 km (0.072 R)
• M12: 6,634,666 km (0.075 R)
• M13: 8,078,734 km (0.083 R)
• M14: 9,029,279 km (0.088 R)
• M15: 10,452,254 km (0.062 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260

Radius: 9.4

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.3 AU - 1.74 AU

Year: 1294 Days

Day: 11.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 34,712,791 km

• M1: 117,584 km (0.047 R)
• M2: 412,142 km (0.086 R)
• M3: 720,613 km (0.059 R)
• M4: 1,091,765 km (0.082 R)
• M5: 2,047,097 km (0.1 R)
• M6: 2,932,417 km (0.111 R)
• M7: 3,695,367 km (0.065 R)
• M8: 4,585,025 km (0.05 R)
• M9: 7,117,418 km (0.067 R)
• M10: 7,842,668 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445.5

Radius: 11.6

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.17 AU - 1.87 AU

Year: 1294 Days

Day: 11.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 34,712,791 km

• M1: 158,275 km (0.104 R)
• M2: 641,326 km (0.098 R)
• M3: 1,092,663 km (0.112 R)
• M4: 1,583,793 km (0.102 R)
• M5: 2,801,819 km (0.103 R)
• M6: 4,853,553 km (0.087 R)
• M7: 5,448,654 km (0.051 R)
• M8: 8,626,561 km (0.084 R)
• M9: 9,184,412 km (0.118 R)
• M10: 10,218,582 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.5

Radius: 10.8

Gravity: 7.42 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 1.86 AU - 2.72 AU

Year: 2392 Days

Day: 7.9 Hours

Environment

Temp: -202 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 34,712,791 km

• M1: 136,583 km (0.102 R)
• M2: 499,208 km (0.083 R)
• M3: 1,356,703 km (0.088 R)
• M4: 2,355,269 km (0.11 R)
• M5: 2,955,456 km (0.059 R)
• M6: 4,004,137 km (0.049 R)
• M7: 4,354,495 km (0.12 R)
• M8: 5,784,800 km (0.113 R)
• M9: 6,453,503 km (0.07 R)
• M10: 7,506,372 km (0.073 R)
• M11: 7,849,999 km (0.095 R)
• M12: 9,366,622 km (0.112 R)
• M13: 9,728,649 km (0.089 R)
• M14: 10,251,194 km (0.081 R)
• M15: 11,110,035 km (0.096 R)
• M16: 14,449,060 km (0.11 R)
• M17: 15,780,930 km (0.102 R)
• M18: 16,925,353 km (0.053 R)
• M19: 19,031,093 km (0.034 R)
• M20: 19,437,401 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 427

Radius: 9.5

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 2.79 AU - 2.83 AU

Year: 3251 Days

Day: 9.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 34,712,791 km

• M1: 118,182 km (0.047 R)
• M2: 488,587 km (0.101 R)
• M3: 964,607 km (0.032 R)
• M4: 1,286,093 km (0.114 R)
• M5: 1,813,874 km (0.075 R)
• M6: 4,906,810 km (0.077 R)
• M7: 5,500,863 km (0.099 R)
• M8: 7,852,691 km (0.111 R)
• M9: 8,598,586 km (0.074 R)
• M10: 10,118,950 km (0.066 R)
• M11: 10,420,539 km (0.052 R)
• M12: 11,769,612 km (0.073 R)
• M13: 12,486,186 km (0.039 R)
• M14: 13,276,362 km (0.08 R)
• M15: 13,683,717 km (0.058 R)
• M16: 14,714,746 km (0.106 R)
• M17: 15,596,176 km (0.103 R)
• M18: 16,203,095 km (0.097 R)
• M19: 18,008,442 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 172.9

Radius: 5.8

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 6.76 AU - 6.86 AU

Year: 12267 Days

Day: 21.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 34,712,791 km

• M1: 72,106 km (0.099 R)
• M2: 333,005 km (0.058 R)
• M3: 539,151 km (0.064 R)
• M4: 731,534 km (0.111 R)
• M5: 1,305,690 km (0.111 R)
• M6: 1,532,032 km (0.116 R)
• M7: 4,402,217 km (0.091 R)
• M8: 4,776,211 km (0.081 R)
• M9: 5,142,277 km (0.113 R)
• M10: 5,648,965 km (0.111 R)
• M11: 5,930,359 km (0.086 R)
• M12: 6,692,111 km (0.118 R)
• M13: 7,007,314 km (0.12 R)
• M14: 9,281,201 km (0.1 R)
• M15: 10,490,700 km (0.118 R)
• M16: 10,868,435 km (0.116 R)
• M17: 11,551,200 km (0.118 R)
• M18: 12,107,255 km (0.091 R)
• M19: 17,151,396 km (0.077 R)
• M20: 18,755,683 km (0.097 R)
• M21: 20,898,523 km (0.088 R)
• M22: 23,678,800 km (0.116 R)
• M23: 24,164,993 km (0.068 R)
• M24: 28,844,115 km (0.035 R)
• M25: 30,243,603 km (0.118 R)
• M26: 33,480,602 km (0.111 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 420 - 14,512 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit