🌌 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: 2.88

Radius: 1.53

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.52 AU - 0.76 AU

Year: 331 Days

Day: 43 Hours

Environment

Temp: -123 °C

Axial Tilt: 2.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.7

Radius: 13.2

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.7 AU - 1.04 AU

Year: 524 Days

Day: 13.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 55,418,032 km

• M1: 164,408 km (0.107 R)
• M2: 645,664 km (0.044 R)
• M3: 1,259,464 km (0.049 R)
• M4: 1,982,172 km (0.093 R)
• M5: 2,568,147 km (0.119 R)
• M6: 3,111,187 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 894.7

Radius: 13.3

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.59 AU - 1.91 AU

Year: 1495 Days

Day: 6.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 55,418,032 km

• M1: 165,455 km (0.08 R)
• M2: 591,809 km (0.11 R)
• M3: 1,085,333 km (0.118 R)
• M4: 1,623,137 km (0.115 R)
• M5: 2,566,800 km (0.113 R)
• M6: 3,526,620 km (0.083 R)
• M7: 4,437,222 km (0.082 R)
• M8: 6,647,082 km (0.045 R)
• M9: 7,251,158 km (0.044 R)
• M10: 7,891,587 km (0.111 R)
• M11: 8,845,124 km (0.105 R)
• M12: 9,479,119 km (0.042 R)
• M13: 10,732,301 km (0.101 R)
• M14: 12,054,746 km (0.097 R)
• M15: 13,565,685 km (0.1 R)
• M16: 14,238,426 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.4

Radius: 12

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 2.01 AU - 2.75 AU

Year: 2371 Days

Day: 11.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 125.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 55,418,032 km

• M1: 149,299 km (0.079 R)
• M2: 693,087 km (0.117 R)
• M3: 1,110,016 km (0.072 R)
• M4: 1,535,921 km (0.106 R)
• M5: 2,426,777 km (0.119 R)
• M6: 4,249,028 km (0.073 R)
• M7: 5,535,570 km (0.089 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 576.1

Radius: 5.9

Gravity: 16.55 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 6.59 AU - 8.19 AU

Year: 12971 Days

Day: 22.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 55,418,032 km

• M1: 107,561 km (0.111 R)
• M2: 310,416 km (0.064 R)
• M3: 550,071 km (0.092 R)
• M4: 985,551 km (0.096 R)
• M5: 1,330,523 km (0.086 R)
• M6: 1,737,130 km (0.043 R)
• M7: 4,111,997 km (0.116 R)
• M8: 4,745,394 km (0.118 R)
• M9: 4,937,927 km (0.116 R)
• M10: 6,166,424 km (0.032 R)
• M11: 7,413,771 km (0.064 R)
• M12: 8,582,579 km (0.09 R)
• M13: 9,260,407 km (0.056 R)
• M14: 10,183,576 km (0.099 R)
• M15: 12,943,208 km (0.11 R)
• M16: 13,319,895 km (0.074 R)
• M17: 13,833,465 km (0.098 R)
• M18: 15,313,736 km (0.094 R)
• M19: 16,236,455 km (0.098 R)
• M20: 16,601,025 km (0.116 R)
• M21: 17,498,164 km (0.118 R)
• M22: 19,799,278 km (0.095 R)
• M23: 22,473,939 km (0.091 R)
• M24: 23,018,026 km (0.115 R)
• M25: 24,416,766 km (0.098 R)
• M26: 31,247,704 km (0.097 R)
• M27: 32,039,226 km (0.11 R)
• M28: 39,249,844 km (0.118 R)
• M29: 43,021,206 km (0.086 R)
• M30: 46,440,415 km (0.12 R)
• M31: 47,470,696 km (0.079 R)
• M32: 48,066,245 km (0.034 R)
• M33: 48,666,731 km (0.086 R)
• M34: 49,576,884 km (0.044 R)
• M35: 53,171,122 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 365.1

Radius: 7.7

Gravity: 6.16 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 8.06 AU - 9.66 AU

Year: 17028 Days

Day: 18.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 55,418,032 km

• M1: 96,640 km (0.112 R)
• M2: 407,804 km (0.051 R)
• M3: 676,781 km (0.047 R)
• M4: 1,079,349 km (0.116 R)
• M5: 1,743,862 km (0.112 R)
• M6: 2,047,995 km (0.106 R)
• M7: 2,676,904 km (0.076 R)
• M8: 3,908,693 km (0.105 R)
• M9: 4,253,367 km (0.113 R)
• M10: 12,105,161 km (0.084 R)
• M11: 15,358,914 km (0.109 R)
• M12: 17,414,239 km (0.099 R)
• M13: 22,787,496 km (0.113 R)
• M14: 26,450,100 km (0.097 R)
• M15: 27,165,178 km (0.111 R)
• M16: 27,579,415 km (0.117 R)
• M17: 28,740,593 km (0.1 R)
• M18: 30,487,298 km (0.093 R)
• M19: 44,165,331 km (0.059 R)
• M20: 46,931,096 km (0.102 R)
• M21: 50,275,207 km (0.118 R)
• M22: 51,687,860 km (0.103 R)
• M23: 53,612,436 km (0.085 R)
• M24: 54,921,567 km (0.111 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 206 - 14,016 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit