🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.9

Radius: 0.96

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.43 AU - 0.69 AU

Year: 275 Days

Day: 18.8 Hours

Environment

Temp: -123 °C

Axial Tilt: 12.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 540.4

Radius: 8.8

Gravity: 6.98 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.62 AU - 1 AU

Year: 478 Days

Day: 13.2 Hours

Environment

Temp: -154 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 41,825,004 km

• M1: 109,506 km (0.102 R)
• M2: 411,394 km (0.081 R)
• M3: 762,650 km (0.07 R)
• M4: 1,232,387 km (0.107 R)
• M5: 1,653,056 km (0.084 R)
• M6: 1,974,094 km (0.088 R)
• M7: 2,458,043 km (0.04 R)
• M8: 2,743,924 km (0.084 R)
• M9: 3,336,332 km (0.118 R)
• M10: 3,738,750 km (0.098 R)
• M11: 4,038,095 km (0.082 R)
• M12: 4,774,865 km (0.038 R)
• M13: 5,286,938 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.3

Radius: 13.1

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.83 AU - 1.19 AU

Year: 666 Days

Day: 10.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,825,004 km

• M1: 163,062 km (0.086 R)
• M2: 629,358 km (0.06 R)
• M3: 1,183,020 km (0.057 R)
• M4: 1,651,560 km (0.115 R)
• M5: 2,216,442 km (0.104 R)
• M6: 3,073,339 km (0.079 R)
• M7: 3,486,827 km (0.104 R)
• M8: 4,350,605 km (0.045 R)
• M9: 5,749,645 km (0.09 R)
• M10: 6,186,022 km (0.101 R)
• M11: 6,603,848 km (0.052 R)
• M12: 7,104,403 km (0.047 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.4

Radius: 9.9

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.78 AU - 1.8 AU

Year: 1571 Days

Day: 14.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 41,825,004 km

• M1: 123,119 km (0.106 R)
• M2: 852,708 km (0.098 R)
• M3: 1,283,101 km (0.071 R)
• M4: 2,311,586 km (0.108 R)
• M5: 3,403,052 km (0.104 R)
• M6: 3,935,322 km (0.092 R)
• M7: 4,965,004 km (0.082 R)
• M8: 6,422,087 km (0.088 R)
• M9: 6,784,114 km (0.107 R)
• M10: 7,210,617 km (0.039 R)
• M11: 8,484,144 km (0.119 R)
• M12: 9,009,681 km (0.067 R)
• M13: 10,029,340 km (0.061 R)
• M14: 10,750,701 km (0.08 R)
• M15: 11,331,440 km (0.071 R)
• M16: 12,260,144 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 246.9

Radius: 11.7

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.7 AU - 1.94 AU

Year: 1611 Days

Day: 8.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,825,004 km

• M1: 145,708 km (0.063 R)
• M2: 617,690 km (0.114 R)
• M3: 1,089,222 km (0.035 R)
• M4: 1,644,081 km (0.108 R)
• M5: 2,316,972 km (0.103 R)
• M6: 3,316,585 km (0.113 R)
• M7: 4,566,625 km (0.084 R)
• M8: 5,356,950 km (0.065 R)
• M9: 6,410,119 km (0.111 R)
• M10: 7,161,998 km (0.116 R)
• M11: 8,625,065 km (0.03 R)
• M12: 9,861,492 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668.2

Radius: 14.3

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 2.61 AU - 2.85 AU

Year: 2959 Days

Day: 6.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 41,825,004 km

• M1: 177,872 km (0.068 R)
• M2: 726,148 km (0.094 R)
• M3: 1,204,113 km (0.11 R)
• M4: 1,728,603 km (0.052 R)
• M5: 2,970,715 km (0.087 R)
• M6: 4,095,092 km (0.1 R)
• M7: 4,790,124 km (0.111 R)
• M8: 5,486,801 km (0.093 R)
• M9: 6,501,523 km (0.114 R)
• M10: 7,669,434 km (0.096 R)
• M11: 8,973,030 km (0.11 R)
• M12: 9,770,985 km (0.098 R)
• M13: 13,306,581 km (0.118 R)
• M14: 14,152,258 km (0.025 R)
• M15: 15,590,043 km (0.085 R)
• M16: 16,370,794 km (0.114 R)
• M17: 17,563,239 km (0.117 R)
• M18: 18,408,766 km (0.096 R)
• M19: 19,163,487 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 497

Radius: 5

Gravity: 19.88 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 4.83 AU - 7.11 AU

Year: 9569 Days

Day: 18.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 41,825,004 km

• M1: 62,233 km (0.078 R)
• M2: 223,798 km (0.064 R)
• M3: 813,214 km (0.075 R)
• M4: 1,134,401 km (0.094 R)
• M5: 1,535,921 km (0.093 R)
• M6: 1,962,425 km (0.058 R)
• M7: 2,212,104 km (0.058 R)
• M8: 2,371,874 km (0.087 R)
• M9: 2,695,155 km (0.05 R)
• M10: 3,112,384 km (0.039 R)
• M11: 4,261,146 km (0.069 R)
• M12: 4,652,045 km (0.115 R)
• M13: 5,799,909 km (0.065 R)
• M14: 7,163,195 km (0.111 R)
• M15: 7,357,223 km (0.089 R)
• M16: 8,168,493 km (0.068 R)
• M17: 9,356,300 km (0.081 R)
• M18: 11,690,774 km (0.105 R)
• M19: 12,622,919 km (0.097 R)
• M20: 15,199,892 km (0.113 R)
• M21: 15,715,107 km (0.099 R)
• M22: 18,906,328 km (0.098 R)
• M23: 20,967,189 km (0.116 R)
• M24: 22,753,537 km (0.055 R)
• M25: 23,257,831 km (0.113 R)
• M26: 25,081,280 km (0.077 R)
• M27: 33,762,893 km (0.115 R)
• M28: 33,980,558 km (0.069 R)
• M29: 37,011,261 km (0.082 R)
• M30: 40,584,556 km (0.05 R)
• M31: 40,954,063 km (0.101 R)
• M32: 41,325,813 km (0.104 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 517 - 19,807 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit