🌌 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: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.74

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.57 AU - 0.71 AU

Year: 331 Days

Day: 15.8 Hours

Environment

Temp: -127 °C

Axial Tilt: 24.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 496.9

Radius: 10.2

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.56 AU - 0.84 AU

Year: 378 Days

Day: 6.7 Hours

Environment

Temp: -137 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 35,275,861 km

• M1: 127,009 km (0.09 R)
• M2: 521,199 km (0.118 R)
• M3: 930,349 km (0.099 R)
• M4: 1,314,068 km (0.067 R)
• M5: 2,065,049 km (0.053 R)
• M6: 2,722,681 km (0.12 R)
• M7: 3,195,710 km (0.086 R)
• M8: 3,606,206 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 484.7

Radius: 9.3

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.67 AU - 1.77 AU

Year: 1456 Days

Day: 13.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,275,861 km

• M1: 115,639 km (0.094 R)
• M2: 454,478 km (0.106 R)
• M3: 853,755 km (0.074 R)
• M4: 1,632,562 km (0.116 R)
• M5: 2,182,932 km (0.118 R)
• M6: 2,581,910 km (0.095 R)
• M7: 3,286,815 km (0.064 R)
• M8: 3,911,984 km (0.055 R)
• M9: 4,218,361 km (0.051 R)
• M10: 5,255,373 km (0.093 R)
• M11: 5,629,218 km (0.045 R)
• M12: 6,246,309 km (0.104 R)
• M13: 7,719,849 km (0.111 R)
• M14: 8,397,527 km (0.118 R)
• M15: 9,055,608 km (0.099 R)
• M16: 9,442,468 km (0.104 R)
• M17: 10,249,549 km (0.117 R)
• M18: 10,539,320 km (0.104 R)
• M19: 10,967,618 km (0.091 R)
• M20: 11,684,042 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 436.5

Radius: 12.8

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 4.82 AU - 6.82 AU

Year: 9066 Days

Day: 13.4 Hours

Environment

Temp: -216 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 35,275,861 km

• M1: 159,172 km (0.1 R)
• M2: 580,141 km (0.088 R)
• M3: 1,455,737 km (0.096 R)
• M4: 2,585,051 km (0.071 R)
• M5: 2,989,564 km (0.055 R)
• M6: 3,642,110 km (0.114 R)
• M7: 5,144,072 km (0.108 R)
• M8: 5,600,645 km (0.027 R)
• M9: 6,880,305 km (0.108 R)
• M10: 7,941,702 km (0.113 R)
• M11: 8,892,845 km (0.082 R)
• M12: 10,971,807 km (0.079 R)
• M13: 12,151,237 km (0.06 R)
• M14: 12,964,899 km (0.113 R)
• M15: 15,562,218 km (0.046 R)
• M16: 16,784,582 km (0.11 R)
• M17: 19,785,814 km (0.111 R)
• M18: 20,456,462 km (0.053 R)
• M19: 25,584,078 km (0.09 R)
• M20: 27,744,272 km (0.08 R)
• M21: 31,711,607 km (0.05 R)
• M22: 33,989,085 km (0.114 R)
• M23: 34,521,653 km (0.103 R)
• M24: 36,819,028 km (0.092 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 591.2

Radius: 3.4

Gravity: 51.14 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 5.68 AU - 6.78 AU

Year: 10040 Days

Day: 19.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 35,275,861 km

• M1: 42,635 km (0.111 R)
• M2: 159,771 km (0.117 R)
• M3: 436,078 km (0.092 R)
• M4: 628,012 km (0.105 R)
• M5: 993,031 km (0.063 R)
• M6: 1,157,289 km (0.103 R)
• M7: 1,352,215 km (0.065 R)
• M8: 1,568,534 km (0.03 R)
• M9: 1,715,289 km (0.108 R)
• M10: 2,946,330 km (0.11 R)
• M11: 3,101,762 km (0.111 R)
• M12: 3,286,216 km (0.088 R)
• M13: 4,263,988 km (0.081 R)
• M14: 5,290,230 km (0.115 R)
• M15: 5,453,890 km (0.113 R)
• M16: 6,178,392 km (0.062 R)
• M17: 6,964,678 km (0.106 R)
• M18: 8,070,955 km (0.101 R)
• M19: 8,688,196 km (0.084 R)
• M20: 9,241,857 km (0.092 R)
• M21: 11,311,095 km (0.042 R)
• M22: 14,227,805 km (0.118 R)
• M23: 17,464,055 km (0.111 R)
• M24: 18,194,991 km (0.115 R)
• M25: 20,349,499 km (0.082 R)
• M26: 20,995,014 km (0.082 R)
• M27: 21,240,654 km (0.084 R)
• M28: 27,430,266 km (0.114 R)
• M29: 27,723,777 km (0.086 R)
• M30: 28,019,232 km (0.071 R)
• M31: 28,817,636 km (0.087 R)
• M32: 30,043,441 km (0.097 R)
• M33: 36,460,442 km (0.061 R)
• M34: 39,986,314 km (0.032 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 176.2

Radius: 6.5

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 5.97 AU - 8.41 AU

Year: 12448 Days

Day: 23.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 35,275,861 km

• M1: 82,129 km (0.075 R)
• M2: 630,705 km (0.051 R)
• M3: 1,021,604 km (0.119 R)
• M4: 1,451,997 km (0.088 R)
• M5: 2,763,521 km (0.025 R)
• M6: 3,120,013 km (0.046 R)
• M7: 3,852,744 km (0.086 R)
• M8: 4,453,828 km (0.052 R)
• M9: 9,568,878 km (0.084 R)
• M10: 11,693,018 km (0.07 R)
• M11: 12,413,332 km (0.109 R)
• M12: 13,053,761 km (0.038 R)
• M13: 14,516,828 km (0.118 R)
• M14: 15,961,494 km (0.049 R)
• M15: 16,400,265 km (0.066 R)
• M16: 19,133,418 km (0.119 R)
• M17: 26,081,641 km (0.056 R)
• M18: 26,954,096 km (0.078 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 239 - 18,192 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit