🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.3

Radius: 9.2

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.49 AU - 0.55 AU

Year: 259 Days

Day: 7.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 38,091,880 km

• M1: 114,442 km (0.056 R)
• M2: 588,967 km (0.117 R)
• M3: 936,782 km (0.095 R)
• M4: 1,336,208 km (0.043 R)
• M5: 1,841,550 km (0.081 R)
• M6: 2,717,146 km (0.056 R)
• M7: 3,007,665 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806

Radius: 12.8

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.42 AU - 0.62 AU

Year: 259 Days

Day: 8.5 Hours

Environment

Temp: -136 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 38,091,880 km

• M1: 159,172 km (0.069 R)
• M2: 773,421 km (0.113 R)
• M3: 1,176,587 km (0.087 R)
• M4: 1,785,899 km (0.11 R)
• M5: 2,547,353 km (0.105 R)
• M6: 3,494,008 km (0.075 R)
• M7: 3,983,193 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901.2

Radius: 10.2

Gravity: 8.66 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.46 AU - 0.6 AU

Year: 266 Days

Day: 13.6 Hours

Environment

Temp: -137 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 38,091,880 km

• M1: 126,859 km (0.085 R)
• M2: 452,534 km (0.099 R)
• M3: 793,916 km (0.1 R)
• M4: 1,140,983 km (0.035 R)
• M5: 1,503,608 km (0.096 R)
• M6: 1,958,685 km (0.11 R)
• M7: 3,264,375 km (0.101 R)
• M8: 3,816,242 km (0.105 R)
• M9: 4,575,600 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.7

Radius: 9.7

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 2.1 AU - 2.1 AU

Year: 2101 Days

Day: 11.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 38,091,880 km

• M1: 120,875 km (0.096 R)
• M2: 550,371 km (0.097 R)
• M3: 916,137 km (0.091 R)
• M4: 1,596,957 km (0.084 R)
• M5: 3,051,797 km (0.06 R)
• M6: 4,648,754 km (0.078 R)
• M7: 9,722,964 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 36.5

Radius: 14.6

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 3.89 AU - 6.33 AU

Year: 7973 Days

Day: 13.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 38,091,880 km

• M1: 181,761 km (0.053 R)
• M2: 833,111 km (0.09 R)
• M3: 1,400,236 km (0.117 R)
• M4: 1,908,719 km (0.11 R)
• M5: 2,801,968 km (0.115 R)
• M6: 4,528,477 km (0.071 R)
• M7: 7,070,743 km (0.087 R)
• M8: 8,819,692 km (0.064 R)
• M9: 11,770,360 km (0.119 R)
• M10: 12,391,640 km (0.087 R)
• M11: 13,034,911 km (0.073 R)
• M12: 14,041,555 km (0.064 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 47

Radius: 3.6

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 5.35 AU - 8.47 AU

Year: 12538 Days

Day: 21.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 38,091,880 km

• M1: 45,029 km (0.101 R)
• M2: 336,595 km (0.091 R)
• M3: 454,329 km (0.116 R)
• M4: 641,326 km (0.062 R)
• M5: 848,370 km (0.065 R)
• M6: 963,709 km (0.1 R)
• M7: 1,756,129 km (0.101 R)
• M8: 2,723,878 km (0.063 R)
• M9: 3,473,513 km (0.103 R)
• M10: 4,963,508 km (0.085 R)
• M11: 5,471,991 km (0.12 R)
• M12: 5,793,178 km (0.072 R)
• M13: 6,802,215 km (0.074 R)
• M14: 7,205,082 km (0.084 R)
• M15: 8,058,089 km (0.115 R)
• M16: 8,438,517 km (0.116 R)
• M17: 10,239,675 km (0.115 R)
• M18: 11,229,714 km (0.114 R)
• M19: 12,146,749 km (0.084 R)
• M20: 15,352,631 km (0.112 R)
• M21: 16,044,222 km (0.108 R)
• M22: 17,432,341 km (0.092 R)
• M23: 18,302,551 km (0.12 R)
• M24: 20,699,857 km (0.11 R)
• M25: 21,675,086 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 128.5

Radius: 7.9

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 6.65 AU - 9.85 AU

Year: 16357 Days

Day: 20.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 38,091,880 km

• M1: 98,286 km (0.111 R)
• M2: 699,071 km (0.098 R)
• M3: 959,371 km (0.112 R)
• M4: 1,343,239 km (0.072 R)
• M5: 1,741,170 km (0.079 R)
• M6: 3,077,079 km (0.049 R)
• M7: 4,247,682 km (0.111 R)
• M8: 4,706,349 km (0.1 R)
• M9: 5,049,676 km (0.038 R)
• M10: 6,453,951 km (0.119 R)
• M11: 8,637,482 km (0.073 R)
• M12: 10,774,936 km (0.108 R)
• M13: 16,514,558 km (0.104 R)
• M14: 19,332,982 km (0.111 R)
• M15: 20,665,899 km (0.098 R)
• M16: 21,354,797 km (0.118 R)
• M17: 24,180,102 km (0.105 R)
• M18: 27,795,584 km (0.101 R)
• M19: 36,076,873 km (0.108 R)
• M20: 37,299,536 km (0.102 R)
• M21: 37,637,777 km (0.091 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 521 - 19,596 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit