🌌 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: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.55 AU - 0.71 AU

Year: 328 Days

Day: 30.6 Hours

Environment

Temp: -134 °C

Axial Tilt: 11.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 52,771,189 km

• M1: 127,906 km (0.084 R)
• M2: 569,669 km (0.075 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 812.3

Radius: 8.4

Gravity: 11.51 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.72 AU - 0.82 AU

Year: 443 Days

Day: 11.8 Hours

Environment

Temp: -152 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,771,189 km

• M1: 104,719 km (0.075 R)
• M2: 450,140 km (0.084 R)
• M3: 804,388 km (0.081 R)
• M4: 1,219,821 km (0.112 R)
• M5: 1,884,933 km (0.103 R)
• M6: 2,466,570 km (0.118 R)
• M7: 3,116,273 km (0.09 R)
• M8: 4,600,135 km (0.088 R)
• M9: 5,328,676 km (0.108 R)
• M10: 6,132,017 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.7

Radius: 11.7

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.99 AU - 1.41 AU

Year: 862 Days

Day: 8.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,771,189 km

• M1: 145,708 km (0.104 R)
• M2: 523,892 km (0.079 R)
• M3: 973,433 km (0.104 R)
• M4: 1,355,058 km (0.102 R)
• M5: 1,878,650 km (0.11 R)
• M6: 2,515,339 km (0.068 R)
• M7: 2,890,380 km (0.106 R)
• M8: 3,363,708 km (0.111 R)
• M9: 3,928,889 km (0.115 R)
• M10: 5,745,157 km (0.104 R)
• M11: 6,289,543 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.4

Radius: 9.5

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.02 AU - 1.68 AU

Year: 1029 Days

Day: 13.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 52,771,189 km

• M1: 118,182 km (0.098 R)
• M2: 433,535 km (0.098 R)
• M3: 742,155 km (0.107 R)
• M4: 1,084,285 km (0.109 R)
• M5: 1,424,920 km (0.101 R)
• M6: 1,801,757 km (0.11 R)
• M7: 2,132,518 km (0.085 R)
• M8: 2,931,221 km (0.111 R)
• M9: 3,229,220 km (0.12 R)
• M10: 3,826,115 km (0.077 R)
• M11: 4,151,341 km (0.111 R)
• M12: 4,511,722 km (0.039 R)
• M13: 5,073,462 km (0.104 R)
• M14: 5,661,531 km (0.108 R)
• M15: 6,273,088 km (0.119 R)
• M16: 8,555,353 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 708.1

Radius: 15

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 2.63 AU - 3.27 AU

Year: 3324 Days

Day: 10.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 52,771,189 km

• M1: 186,549 km (0.077 R)
• M2: 709,393 km (0.095 R)
• M3: 1,364,632 km (0.112 R)
• M4: 1,920,238 km (0.087 R)
• M5: 2,884,097 km (0.11 R)
• M6: 3,543,824 km (0.112 R)
• M7: 4,281,491 km (0.089 R)
• M8: 5,045,936 km (0.111 R)
• M9: 5,954,893 km (0.106 R)
• M10: 6,849,039 km (0.102 R)
• M11: 7,831,000 km (0.08 R)
• M12: 9,197,726 km (0.115 R)
• M13: 10,233,691 km (0.115 R)
• M14: 13,424,913 km (0.106 R)
• M15: 14,757,680 km (0.032 R)
• M16: 16,285,673 km (0.084 R)
• M17: 17,801,099 km (0.113 R)
• M18: 18,622,990 km (0.089 R)
• M19: 19,716,700 km (0.105 R)
• M20: 22,435,193 km (0.098 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 452.8

Radius: 8

Gravity: 7.08 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 5.08 AU - 7.2 AU

Year: 9981 Days

Day: 16.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 52,771,189 km

• M1: 100,979 km (0.098 R)
• M2: 554,709 km (0.084 R)
• M3: 936,632 km (0.105 R)
• M4: 1,720,226 km (0.097 R)
• M5: 2,966,675 km (0.059 R)
• M6: 3,407,092 km (0.104 R)
• M7: 4,096,289 km (0.045 R)
• M8: 5,457,181 km (0.049 R)
• M9: 6,363,445 km (0.101 R)
• M10: 7,563,070 km (0.108 R)
• M11: 8,385,559 km (0.039 R)
• M12: 9,403,573 km (0.076 R)
• M13: 11,005,018 km (0.081 R)
• M14: 11,419,105 km (0.077 R)
• M15: 12,114,286 km (0.098 R)
• M16: 16,084,464 km (0.065 R)
• M17: 19,464,329 km (0.08 R)
• M18: 23,800,872 km (0.116 R)
• M19: 24,756,952 km (0.074 R)
• M20: 25,557,899 km (0.103 R)
• M21: 27,024,556 km (0.074 R)
• M22: 28,160,752 km (0.047 R)
• M23: 41,576,390 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 271

Radius: 6.6

Gravity: 6.22 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 7.27 AU - 11.17 AU

Year: 18366 Days

Day: 20.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 52,771,189 km

• M1: 83,924 km (0.106 R)
• M2: 426,653 km (0.096 R)
• M3: 690,245 km (0.1 R)
• M4: 905,366 km (0.111 R)
• M5: 1,448,556 km (0.034 R)
• M6: 1,907,522 km (0.11 R)
• M7: 2,153,013 km (0.056 R)
• M8: 2,479,435 km (0.116 R)
• M9: 2,882,901 km (0.079 R)
• M10: 3,136,020 km (0.08 R)
• M11: 3,454,215 km (0.07 R)
• M12: 3,930,235 km (0.074 R)
• M13: 4,693,932 km (0.1 R)
• M14: 4,915,487 km (0.072 R)
• M15: 5,277,813 km (0.117 R)
• M16: 6,167,771 km (0.114 R)
• M17: 6,550,442 km (0.119 R)
• M18: 10,256,430 km (0.075 R)
• M19: 13,829,575 km (0.069 R)
• M20: 19,019,873 km (0.114 R)
• M21: 21,003,092 km (0.059 R)
• M22: 24,798,390 km (0.078 R)
• M23: 25,569,717 km (0.115 R)
• M24: 29,133,138 km (0.082 R)
• M25: 37,101,170 km (0.085 R)
• M26: 38,749,140 km (0.113 R)
• M27: 41,244,432 km (0.074 R)
• M28: 41,918,371 km (0.104 R)
• M29: 43,150,159 km (0.095 R)
• M30: 43,705,317 km (0.057 R)
• M31: 43,984,616 km (0.104 R)
• M32: 46,407,354 km (0.102 R)
• M33: 46,843,880 km (0.052 R)
• M34: 47,873,114 km (0.06 R)
• M35: 49,067,952 km (0.102 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: 521 - 18,644 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit