🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.9

Radius: 9.5

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.69 AU - 0.71 AU

Year: 384 Days

Day: 6.4 Hours

Environment

Temp: -142 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 68,724,399 km

• M1: 118,182 km (0.093 R)
• M2: 741,407 km (0.057 R)
• M3: 1,086,829 km (0.119 R)
• M4: 1,708,408 km (0.107 R)
• M5: 2,074,174 km (0.12 R)
• M6: 2,425,430 km (0.111 R)
• M7: 2,807,354 km (0.044 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.6

Radius: 13.3

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.84 AU - 1.1 AU

Year: 627 Days

Day: 14.4 Hours

Environment

Temp: -167 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 68,724,399 km

• M1: 166,203 km (0.074 R)
• M2: 618,737 km (0.066 R)
• M3: 1,796,222 km (0.113 R)
• M4: 2,251,598 km (0.118 R)
• M5: 2,977,895 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102.1

Radius: 10.5

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.92 AU - 1.12 AU

Year: 676 Days

Day: 9.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 109.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 68,724,399 km

• M1: 130,599 km (0.086 R)
• M2: 705,055 km (0.071 R)
• M3: 1,039,855 km (0.092 R)
• M4: 1,421,030 km (0.059 R)
• M5: 1,938,340 km (0.118 R)
• M6: 3,438,357 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 539.2

Radius: 14.6

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.21 AU - 1.25 AU

Year: 895 Days

Day: 14.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 68,724,399 km

• M1: 181,612 km (0.106 R)
• M2: 779,255 km (0.093 R)
• M3: 1,325,288 km (0.082 R)
• M4: 1,839,007 km (0.069 R)
• M5: 2,957,101 km (0.077 R)
• M6: 3,583,318 km (0.116 R)
• M7: 5,775,375 km (0.052 R)
• M8: 6,546,403 km (0.114 R)
• M9: 7,431,274 km (0.077 R)
• M10: 7,951,127 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 128.2

Radius: 9.5

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.32 AU - 1.38 AU

Year: 1029 Days

Day: 7.1 Hours

Environment

Temp: -163 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 68,724,399 km

• M1: 118,182 km (0.049 R)
• M2: 549,174 km (0.097 R)
• M3: 1,016,966 km (0.089 R)
• M4: 1,374,056 km (0.104 R)
• M5: 1,672,654 km (0.09 R)
• M6: 2,048,743 km (0.083 R)
• M7: 2,973,407 km (0.054 R)
• M8: 4,181,709 km (0.046 R)
• M9: 4,684,358 km (0.088 R)
• M10: 5,020,654 km (0.046 R)
• M11: 5,372,957 km (0.079 R)
• M12: 5,845,238 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 248.6

Radius: 10.7

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 2.01 AU - 2.79 AU

Year: 2439 Days

Day: 10.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 68,724,399 km

• M1: 133,740 km (0.112 R)
• M2: 475,721 km (0.119 R)
• M3: 923,019 km (0.066 R)
• M4: 1,313,320 km (0.053 R)
• M5: 1,765,105 km (0.078 R)
• M6: 2,133,864 km (0.079 R)
• M7: 3,251,959 km (0.092 R)
• M8: 3,711,972 km (0.069 R)
• M9: 6,048,990 km (0.12 R)
• M10: 6,574,228 km (0.088 R)
• M11: 7,743,485 km (0.12 R)
• M12: 8,894,641 km (0.096 R)
• M13: 9,734,034 km (0.098 R)
• M14: 13,189,147 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 373.8

Radius: 9.7

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 5.43 AU - 5.65 AU

Year: 8554 Days

Day: 7.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 68,724,399 km

• M1: 121,623 km (0.085 R)
• M2: 663,616 km (0.117 R)
• M3: 1,128,566 km (0.109 R)
• M4: 1,615,956 km (0.051 R)
• M5: 2,035,578 km (0.119 R)
• M6: 3,796,046 km (0.076 R)
• M7: 4,233,769 km (0.109 R)
• M8: 4,597,292 km (0.117 R)
• M9: 5,387,169 km (0.117 R)
• M10: 7,605,257 km (0.114 R)
• M11: 7,948,883 km (0.12 R)
• M12: 10,325,843 km (0.07 R)
• M13: 10,795,282 km (0.084 R)
• M14: 11,426,884 km (0.033 R)
• M15: 12,289,615 km (0.086 R)
• M16: 16,054,843 km (0.08 R)
• M17: 18,953,452 km (0.098 R)
• M18: 20,379,568 km (0.06 R)
• M19: 25,423,560 km (0.049 R)
• M20: 31,047,991 km (0.045 R)
• M21: 35,191,104 km (0.041 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 702.7

Radius: 6.6

Gravity: 16.13 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 6.8 AU - 10.68 AU

Year: 16950 Days

Day: 24 Hours

Environment

Temp: -233 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 68,724,399 km

• M1: 86,468 km (0.081 R)
• M2: 475,721 km (0.088 R)
• M3: 917,185 km (0.094 R)
• M4: 4,917,581 km (0.1 R)
• M5: 5,849,875 km (0.077 R)
• M6: 7,028,258 km (0.045 R)
• M7: 7,816,638 km (0.088 R)
• M8: 8,407,550 km (0.098 R)
• M9: 9,678,234 km (0.079 R)
• M10: 10,711,656 km (0.088 R)
• M11: 12,462,550 km (0.057 R)
• M12: 12,995,866 km (0.076 R)
• M13: 13,824,339 km (0.099 R)
• M14: 15,057,624 km (0.065 R)
• M15: 17,740,961 km (0.109 R)
• M16: 24,032,300 km (0.101 R)
• M17: 24,649,989 km (0.095 R)
• M18: 26,132,055 km (0.096 R)
• M19: 26,785,050 km (0.113 R)
• M20: 27,005,258 km (0.102 R)
• M21: 30,214,432 km (0.063 R)
• M22: 30,572,718 km (0.048 R)
• M23: 30,933,698 km (0.11 R)
• M24: 33,413,881 km (0.077 R)
• M25: 35,095,361 km (0.12 R)
• M26: 41,204,190 km (0.118 R)
• M27: 44,200,935 km (0.059 R)
• M28: 46,541,693 km (0.1 R)
• M29: 60,812,432 km (0.103 R)
• M30: 63,313,110 km (0.08 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 343 - 16,729 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit