🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.56

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.53 AU - 0.73 AU

Year: 323 Days

Day: 19.8 Hours

Environment

Temp: -129 °C

Axial Tilt: 9.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 23,154,929 km

• M1: 123,119 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.5

Radius: 9.9

Gravity: 7.39 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.67 AU - 0.91 AU

Year: 453 Days

Day: 14.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 23,154,929 km

• M1: 123,119 km (0.086 R)
• M2: 433,983 km (0.107 R)
• M3: 787,782 km (0.117 R)
• M4: 1,587,682 km (0.119 R)
• M5: 1,929,214 km (0.052 R)
• M6: 2,264,912 km (0.074 R)
• M7: 2,599,413 km (0.105 R)
• M8: 3,967,485 km (0.093 R)
• M9: 4,862,529 km (0.033 R)
• M10: 5,507,894 km (0.07 R)
• M11: 5,851,521 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.5

Radius: 14.6

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.55 AU - 1.61 AU

Year: 1282 Days

Day: 12.3 Hours

Environment

Temp: -185 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 23,154,929 km

• M1: 181,911 km (0.084 R)
• M2: 645,664 km (0.038 R)
• M3: 1,109,867 km (0.097 R)
• M4: 1,586,336 km (0.118 R)
• M5: 3,224,283 km (0.109 R)
• M6: 3,776,748 km (0.098 R)
• M7: 4,336,992 km (0.087 R)
• M8: 4,832,759 km (0.033 R)
• M9: 5,894,306 km (0.034 R)
• M10: 6,627,335 km (0.064 R)
• M11: 7,826,512 km (0.106 R)
• M12: 10,317,017 km (0.093 R)
• M13: 11,562,419 km (0.1 R)
• M14: 12,751,573 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.5

Radius: 9.1

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.51 AU - 1.77 AU

Year: 1356 Days

Day: 13 Hours

Environment

Temp: -188 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 23,154,929 km

• M1: 113,246 km (0.077 R)
• M2: 438,920 km (0.075 R)
• M3: 788,231 km (0.088 R)
• M4: 1,081,892 km (0.098 R)
• M5: 1,368,821 km (0.082 R)
• M6: 1,657,096 km (0.079 R)
• M7: 2,024,358 km (0.12 R)
• M8: 2,467,766 km (0.117 R)
• M9: 2,766,513 km (0.06 R)
• M10: 4,643,368 km (0.106 R)
• M11: 5,120,286 km (0.057 R)
• M12: 6,007,551 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 197.5

Radius: 10.5

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 2.63 AU - 2.63 AU

Year: 2754 Days

Day: 8.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 23,154,929 km

• M1: 132,245 km (0.106 R)
• M2: 616,343 km (0.094 R)
• M3: 1,223,112 km (0.104 R)
• M4: 1,829,881 km (0.105 R)
• M5: 2,680,345 km (0.114 R)
• M6: 3,692,225 km (0.096 R)
• M7: 4,341,031 km (0.108 R)
• M8: 5,400,932 km (0.091 R)
• M9: 6,977,544 km (0.078 R)
• M10: 8,138,872 km (0.116 R)
• M11: 9,393,400 km (0.038 R)
• M12: 10,232,046 km (0.077 R)
• M13: 10,703,877 km (0.042 R)
• M14: 11,655,021 km (0.11 R)
• M15: 12,738,259 km (0.106 R)
• M16: 13,324,234 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.6

Radius: 8.3

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 2.82 AU - 4.62 AU

Year: 4633 Days

Day: 11.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 23,154,929 km

• M1: 103,223 km (0.106 R)
• M2: 387,608 km (0.044 R)
• M3: 654,191 km (0.117 R)
• M4: 1,237,324 km (0.086 R)
• M5: 2,104,094 km (0.031 R)
• M6: 2,392,968 km (0.119 R)
• M7: 2,998,241 km (0.057 R)
• M8: 3,462,293 km (0.085 R)
• M9: 4,038,095 km (0.053 R)
• M10: 4,557,649 km (0.111 R)
• M11: 4,895,291 km (0.076 R)
• M12: 5,249,389 km (0.078 R)
• M13: 6,239,428 km (0.064 R)
• M14: 6,565,402 km (0.119 R)
• M15: 7,446,982 km (0.086 R)
• M16: 8,263,487 km (0.06 R)
• M17: 8,548,471 km (0.062 R)
• M18: 10,033,529 km (0.118 R)
• M19: 12,271,065 km (0.086 R)
• M20: 15,456,901 km (0.102 R)
• M21: 17,066,873 km (0.093 R)
• M22: 18,847,088 km (0.032 R)
• M23: 19,529,703 km (0.046 R)
• M24: 19,908,933 km (0.031 R)
• M25: 21,010,123 km (0.098 R)
• M26: 21,408,353 km (0.115 R)
• M27: 22,288,437 km (0.031 R)
• M28: 22,564,146 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 334.9

Radius: 8.7

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 3.63 AU - 3.99 AU

Year: 4802 Days

Day: 6.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 23,154,929 km

• M1: 109,954 km (0.11 R)
• M2: 503,995 km (0.116 R)
• M3: 1,485,806 km (0.089 R)
• M4: 2,470,609 km (0.079 R)
• M5: 5,186,558 km (0.063 R)
• M6: 5,707,907 km (0.045 R)
• M7: 6,263,812 km (0.05 R)
• M8: 6,764,217 km (0.112 R)
• M9: 10,345,441 km (0.113 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: 545 - 11,822 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit