🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414.9

Radius: 12.4

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.69 AU - 0.75 AU

Year: 394 Days

Day: 14.4 Hours

Environment

Temp: -150 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,138,067 km

• M1: 154,235 km (0.07 R)
• M2: 541,395 km (0.102 R)
• M3: 952,490 km (0.106 R)
• M4: 1,666,969 km (0.06 R)
• M5: 2,064,151 km (0.042 R)
• M6: 2,481,380 km (0.061 R)
• M7: 2,975,352 km (0.054 R)
• M8: 3,881,616 km (0.099 R)
• M9: 4,699,617 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148

Radius: 10.8

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.71 AU - 0.75 AU

Year: 403 Days

Day: 9 Hours

Environment

Temp: -139 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 36,138,067 km

• M1: 134,638 km (0.083 R)
• M2: 686,056 km (0.089 R)
• M3: 1,330,374 km (0.07 R)
• M4: 1,820,756 km (0.097 R)
• M5: 2,375,913 km (0.105 R)
• M6: 2,812,290 km (0.034 R)
• M7: 3,321,222 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.2

Radius: 12.9

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.53 AU - 1.73 AU

Year: 1344 Days

Day: 7.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,138,067 km

• M1: 160,519 km (0.053 R)
• M2: 567,275 km (0.116 R)
• M3: 1,097,300 km (0.085 R)
• M4: 1,586,934 km (0.108 R)
• M5: 2,667,330 km (0.046 R)
• M6: 3,291,602 km (0.048 R)
• M7: 3,856,184 km (0.076 R)
• M8: 4,914,440 km (0.05 R)
• M9: 5,654,949 km (0.062 R)
• M10: 7,200,594 km (0.119 R)
• M11: 7,764,578 km (0.075 R)
• M12: 8,416,077 km (0.08 R)
• M13: 9,796,117 km (0.1 R)
• M14: 10,900,449 km (0.089 R)
• M15: 12,049,061 km (0.099 R)
• M16: 12,538,097 km (0.115 R)
• M17: 12,962,207 km (0.025 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846

Radius: 10.5

Gravity: 7.67 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 1.5 AU - 2 AU

Year: 1495 Days

Day: 7.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 36,138,067 km

• M1: 130,599 km (0.04 R)
• M2: 462,856 km (0.093 R)
• M3: 881,431 km (0.107 R)
• M4: 1,361,640 km (0.041 R)
• M5: 1,788,443 km (0.056 R)
• M6: 2,365,741 km (0.112 R)
• M7: 4,036,300 km (0.104 R)
• M8: 5,096,351 km (0.078 R)
• M9: 5,783,753 km (0.091 R)
• M10: 6,162,086 km (0.097 R)
• M11: 6,863,999 km (0.1 R)
• M12: 7,370,238 km (0.079 R)
• M13: 8,367,757 km (0.107 R)
• M14: 9,582,791 km (0.109 R)
• M15: 10,983,027 km (0.064 R)
• M16: 11,602,063 km (0.039 R)
• M17: 12,129,096 km (0.106 R)
• M18: 13,599,194 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609.5

Radius: 8.3

Gravity: 8.85 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 2.8 AU - 4.54 AU

Year: 4540 Days

Day: 11.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 36,138,067 km

• M1: 103,821 km (0.077 R)
• M2: 711,637 km (0.118 R)
• M3: 1,034,469 km (0.061 R)
• M4: 1,700,030 km (0.057 R)
• M5: 2,290,343 km (0.092 R)
• M6: 4,374,990 km (0.08 R)
• M7: 5,074,509 km (0.041 R)
• M8: 5,506,548 km (0.064 R)
• M9: 5,846,434 km (0.116 R)
• M10: 7,148,235 km (0.114 R)
• M11: 9,853,862 km (0.053 R)
• M12: 10,527,053 km (0.108 R)
• M13: 11,593,835 km (0.063 R)
• M14: 13,126,016 km (0.034 R)
• M15: 13,580,345 km (0.096 R)
• M16: 14,897,255 km (0.079 R)
• M17: 17,844,333 km (0.025 R)
• M18: 18,843,647 km (0.12 R)
• M19: 23,880,159 km (0.079 R)
• M20: 25,480,108 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 137.8

Radius: 11.5

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 4.24 AU - 5.18 AU

Year: 6600 Days

Day: 13.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 141.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,138,067 km

• M1: 143,165 km (0.052 R)
• M2: 502,050 km (0.062 R)
• M3: 1,387,819 km (0.112 R)
• M4: 2,019,122 km (0.109 R)
• M5: 6,362,098 km (0.096 R)
• M6: 7,120,410 km (0.118 R)
• M7: 7,776,097 km (0.065 R)
• M8: 8,168,493 km (0.061 R)
• M9: 9,872,861 km (0.109 R)
• M10: 10,451,206 km (0.044 R)
• M11: 11,974,412 km (0.093 R)
• M12: 13,084,428 km (0.091 R)
• M13: 15,559,525 km (0.095 R)
• M14: 19,623,351 km (0.096 R)
• M15: 21,100,630 km (0.067 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 506.6

Radius: 13.3

Gravity: 2.86 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 4.21 AU - 6.15 AU

Year: 7612 Days

Day: 13 Hours

Environment

Temp: -225 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,138,067 km

• M1: 165,455 km (0.098 R)
• M2: 865,573 km (0.069 R)
• M3: 1,493,735 km (0.057 R)
• M4: 2,218,237 km (0.051 R)
• M5: 4,168,545 km (0.106 R)
• M6: 4,716,222 km (0.102 R)
• M7: 5,136,443 km (0.115 R)
• M8: 5,892,959 km (0.116 R)
• M9: 6,415,355 km (0.038 R)
• M10: 7,075,680 km (0.107 R)
• M11: 8,492,222 km (0.066 R)
• M12: 10,744,269 km (0.076 R)
• M13: 11,880,315 km (0.046 R)
• M14: 14,565,746 km (0.062 R)
• M15: 20,511,813 km (0.117 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 441 - 11,362 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit