🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212

Radius: 13.9

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.49 AU - 0.67 AU

Year: 305 Days

Day: 10.2 Hours

Environment

Temp: -139 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 51,941,077 km

• M1: 172,935 km (0.114 R)
• M2: 667,805 km (0.084 R)
• M3: 1,130,212 km (0.078 R)
• M4: 1,756,728 km (0.088 R)
• M5: 2,260,573 km (0.102 R)
• M6: 2,869,437 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 692.6

Radius: 10.2

Gravity: 6.66 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.49 AU - 0.75 AU

Year: 337 Days

Day: 5.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 51,941,077 km

• M1: 126,859 km (0.08 R)
• M2: 471,532 km (0.115 R)
• M3: 838,795 km (0.093 R)
• M4: 1,215,632 km (0.115 R)
• M5: 1,841,101 km (0.075 R)
• M6: 2,190,861 km (0.089 R)
• M7: 2,520,724 km (0.102 R)
• M8: 3,948,785 km (0.081 R)
• M9: 4,536,855 km (0.089 R)
• M10: 4,888,260 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.7

Radius: 13.5

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.61 AU - 0.75 AU

Year: 387 Days

Day: 9.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 51,941,077 km

• M1: 172,038 km (0.04 R)
• M2: 624,571 km (0.109 R)
• M3: 1,170,753 km (0.071 R)
• M4: 1,594,414 km (0.108 R)
• M5: 2,267,754 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91.1

Radius: 12.9

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.73 AU - 0.99 AU

Year: 551 Days

Day: 8.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 51,941,077 km

• M1: 160,519 km (0.09 R)
• M2: 738,265 km (0.102 R)
• M3: 1,339,799 km (0.032 R)
• M4: 1,808,040 km (0.092 R)
• M5: 2,401,644 km (0.093 R)
• M6: 2,985,973 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 814

Radius: 14.5

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.86 AU - 1.08 AU

Year: 659 Days

Day: 5.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 51,941,077 km

• M1: 180,265 km (0.068 R)
• M2: 772,374 km (0.084 R)
• M3: 1,387,221 km (0.1 R)
• M4: 1,853,667 km (0.103 R)
• M5: 2,718,044 km (0.085 R)
• M6: 3,385,998 km (0.062 R)
• M7: 4,086,864 km (0.067 R)
• M8: 4,899,779 km (0.089 R)
• M9: 5,354,557 km (0.081 R)
• M10: 5,875,905 km (0.115 R)
• M11: 6,785,311 km (0.047 R)
• M12: 7,263,126 km (0.118 R)
• M13: 7,740,343 km (0.041 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.7

Radius: 12.8

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.23 AU - 1.45 AU

Year: 1071 Days

Day: 12.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 51,941,077 km

• M1: 159,172 km (0.093 R)
• M2: 627,264 km (0.047 R)
• M3: 1,421,629 km (0.093 R)
• M4: 1,945,969 km (0.119 R)
• M5: 4,735,221 km (0.118 R)
• M6: 5,305,937 km (0.118 R)
• M7: 5,997,827 km (0.077 R)
• M8: 7,083,609 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409.5

Radius: 13.4

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 2.4 AU - 2.42 AU

Year: 2582 Days

Day: 7.1 Hours

Environment

Temp: -207 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 51,941,077 km

• M1: 166,652 km (0.044 R)
• M2: 631,004 km (0.079 R)
• M3: 1,128,118 km (0.108 R)
• M4: 2,132,518 km (0.117 R)
• M5: 2,937,504 km (0.086 R)
• M6: 3,529,463 km (0.075 R)
• M7: 6,091,177 km (0.052 R)
• M8: 7,059,374 km (0.112 R)
• M9: 7,977,306 km (0.054 R)
• M10: 9,334,159 km (0.108 R)
• M11: 10,155,751 km (0.115 R)
• M12: 10,913,613 km (0.119 R)
• M13: 11,631,534 km (0.036 R)
• M14: 13,801,600 km (0.057 R)
• M15: 14,372,615 km (0.072 R)
• M16: 14,959,488 km (0.029 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.2

Radius: 8.8

Gravity: 10.72 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 2.48 AU - 2.78 AU

Year: 2944 Days

Day: 12.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 51,941,077 km

• M1: 111,151 km (0.026 R)
• M2: 397,781 km (0.087 R)
• M3: 681,418 km (0.057 R)
• M4: 1,221,915 km (0.117 R)
• M5: 2,567,548 km (0.044 R)
• M6: 5,019,757 km (0.104 R)
• M7: 6,728,314 km (0.112 R)
• M8: 7,186,383 km (0.091 R)
• M9: 8,615,641 km (0.066 R)
• M10: 9,604,632 km (0.108 R)
• M11: 11,719,796 km (0.107 R)
• M12: 13,401,875 km (0.098 R)
• M13: 13,737,423 km (0.092 R)
• M14: 14,275,975 km (0.104 R)
• M15: 14,575,620 km (0.07 R)
• M16: 17,351,259 km (0.098 R)
• M17: 18,447,811 km (0.077 R)
• M18: 18,923,083 km (0.111 R)
• M19: 19,774,445 km (0.062 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 181.3

Radius: 4.9

Gravity: 7.55 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 8.49 AU - 11.57 AU

Year: 21926 Days

Day: 18.3 Hours

Environment

Temp: -243 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 51,941,077 km

• M1: 60,886 km (0.07 R)
• M2: 422,464 km (0.031 R)
• M3: 1,093,411 km (0.116 R)
• M4: 1,447,808 km (0.073 R)
• M5: 1,682,527 km (0.114 R)
• M6: 2,343,002 km (0.057 R)
• M7: 2,710,115 km (0.051 R)
• M8: 2,952,912 km (0.032 R)
• M9: 4,185,748 km (0.053 R)
• M10: 6,584,999 km (0.108 R)
• M11: 12,187,589 km (0.09 R)
• M12: 20,243,135 km (0.101 R)
• M13: 24,116,972 km (0.07 R)
• M14: 24,775,502 km (0.074 R)
• M15: 28,770,812 km (0.08 R)
• M16: 31,697,395 km (0.08 R)
• M17: 33,059,633 km (0.08 R)
• M18: 41,925,850 km (0.099 R)
• M19: 44,121,648 km (0.08 R)
• M20: 46,827,125 km (0.115 R)
• M21: 48,591,782 km (0.08 R)
• M22: 49,641,361 km (0.117 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 208 - 19,395 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit