🌌 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 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.48

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.53 AU - 0.63 AU

Year: 290 Days

Day: 46.8 Hours

Environment

Temp: -132 °C

Axial Tilt: 30 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 34,003,330 km

• M1: 38,447 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923.1

Radius: 12.8

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.78 AU - 0.92 AU

Year: 514 Days

Day: 9.2 Hours

Environment

Temp: -160 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 34,003,330 km

• M1: 159,172 km (0.073 R)
• M2: 571,015 km (0.119 R)
• M3: 1,137,243 km (0.081 R)
• M4: 1,600,099 km (0.105 R)
• M5: 2,134,762 km (0.077 R)
• M6: 2,636,513 km (0.106 R)
• M7: 3,096,377 km (0.104 R)
• M8: 4,587,867 km (0.081 R)
• M9: 5,292,922 km (0.111 R)
• M10: 6,614,171 km (0.115 R)
• M11: 7,023,470 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719.7

Radius: 10.7

Gravity: 6.29 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.46 AU - 1.76 AU

Year: 1340 Days

Day: 6.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 34,003,330 km

• M1: 133,142 km (0.045 R)
• M2: 520,301 km (0.039 R)
• M3: 2,166,028 km (0.113 R)
• M4: 2,874,373 km (0.044 R)
• M5: 4,121,272 km (0.115 R)
• M6: 4,710,239 km (0.095 R)
• M7: 5,611,117 km (0.051 R)
• M8: 6,056,769 km (0.109 R)
• M9: 8,827,022 km (0.076 R)
• M10: 9,338,797 km (0.076 R)
• M11: 10,389,123 km (0.094 R)
• M12: 11,801,477 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.5

Radius: 10.4

Gravity: 8.58 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.71 AU - 2.59 AU

Year: 2068 Days

Day: 11.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 34,003,330 km

• M1: 129,402 km (0.09 R)
• M2: 578,495 km (0.039 R)
• M3: 1,054,515 km (0.028 R)
• M4: 1,503,459 km (0.087 R)
• M5: 2,282,714 km (0.09 R)
• M6: 2,778,930 km (0.109 R)
• M7: 3,311,648 km (0.067 R)
• M8: 4,087,163 km (0.071 R)
• M9: 4,539,547 km (0.097 R)
• M10: 4,889,307 km (0.071 R)
• M11: 5,399,586 km (0.109 R)
• M12: 5,843,442 km (0.043 R)
• M13: 6,500,027 km (0.117 R)
• M14: 6,832,434 km (0.099 R)
• M15: 7,531,355 km (0.117 R)
• M16: 9,277,910 km (0.074 R)
• M17: 9,700,076 km (0.062 R)
• M18: 10,098,305 km (0.115 R)
• M19: 10,621,000 km (0.106 R)
• M20: 12,089,453 km (0.098 R)
• M21: 12,764,588 km (0.052 R)
• M22: 14,562,904 km (0.057 R)
• M23: 15,868,445 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753.7

Radius: 10.1

Gravity: 7.39 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 3.69 AU - 3.77 AU

Year: 4726 Days

Day: 12.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 34,003,330 km

• M1: 129,402 km (0.111 R)
• M2: 475,272 km (0.119 R)
• M3: 825,032 km (0.12 R)
• M4: 1,845,140 km (0.09 R)
• M5: 3,035,640 km (0.095 R)
• M6: 3,773,756 km (0.069 R)
• M7: 4,161,962 km (0.099 R)
• M8: 5,154,245 km (0.077 R)
• M9: 6,265,907 km (0.105 R)
• M10: 11,518,737 km (0.051 R)
• M11: 16,610,001 km (0.117 R)
• M12: 19,009,551 km (0.087 R)
• M13: 20,361,168 km (0.097 R)
• M14: 21,415,982 km (0.104 R)
• M15: 23,864,600 km (0.112 R)
• M16: 24,563,522 km (0.061 R)
• M17: 24,878,575 km (0.071 R)
• M18: 28,784,575 km (0.085 R)
• M19: 29,487,835 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385.2

Radius: 9.2

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 3.45 AU - 5.07 AU

Year: 5768 Days

Day: 13.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 34,003,330 km

• M1: 114,442 km (0.111 R)
• M2: 967,749 km (0.102 R)
• M3: 1,335,759 km (0.092 R)
• M4: 2,669,125 km (0.101 R)
• M5: 3,651,235 km (0.068 R)
• M6: 5,981,820 km (0.079 R)
• M7: 9,968,305 km (0.028 R)
• M8: 10,474,843 km (0.072 R)
• M9: 12,193,423 km (0.109 R)
• M10: 13,472,485 km (0.112 R)
• M11: 14,249,945 km (0.055 R)
• M12: 15,057,026 km (0.116 R)
• M13: 17,722,261 km (0.118 R)
• M14: 18,215,934 km (0.095 R)
• M15: 18,529,043 km (0.033 R)
• M16: 23,594,875 km (0.1 R)
• M17: 24,343,463 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 12.8

Radius: 9

Gravity: 0.16 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 3.85 AU - 4.75 AU

Year: 5849 Days

Day: 10.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 34,003,330 km

• M1: 111,899 km (0.108 R)
• M2: 399,726 km (0.11 R)
• M3: 995,125 km (0.042 R)
• M4: 1,375,852 km (0.116 R)
• M5: 2,028,398 km (0.094 R)
• M6: 8,405,156 km (0.066 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 334.2

Radius: 8.4

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 5.1 AU - 5.98 AU

Year: 8554 Days

Day: 8.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 34,003,330 km

• M1: 105,466 km (0.078 R)
• M2: 446,101 km (0.075 R)
• M3: 749,635 km (0.066 R)
• M4: 1,038,209 km (0.114 R)
• M5: 1,300,604 km (0.092 R)
• M6: 1,979,329 km (0.1 R)
• M7: 3,234,904 km (0.086 R)
• M8: 3,714,515 km (0.091 R)
• M9: 4,166,301 km (0.039 R)
• M10: 4,707,845 km (0.117 R)
• M11: 5,324,637 km (0.066 R)
• M12: 7,798,836 km (0.096 R)
• M13: 8,183,452 km (0.063 R)
• M14: 8,743,248 km (0.086 R)
• M15: 9,328,325 km (0.07 R)
• M16: 10,118,501 km (0.103 R)
• M17: 10,483,669 km (0.117 R)
• M18: 11,047,952 km (0.116 R)
• M19: 12,237,255 km (0.094 R)
• M20: 13,509,735 km (0.12 R)
• M21: 14,985,219 km (0.112 R)
• M22: 16,067,858 km (0.115 R)
• M23: 16,502,590 km (0.114 R)
• M24: 18,523,059 km (0.11 R)
• M25: 21,515,914 km (0.11 R)
• M26: 22,273,328 km (0.033 R)
• M27: 23,126,933 km (0.092 R)
• M28: 24,981,797 km (0.042 R)
• M29: 27,371,324 km (0.042 R)
• M30: 29,815,753 km (0.085 R)
• M31: 31,138,797 km (0.1 R)
• M32: 31,717,741 km (0.061 R)
• M33: 32,205,579 km (0.101 R)
• M34: 33,699,164 km (0.052 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 551 - 13,270 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit