🌌 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 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 918

Radius: 15

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.49 AU - 0.77 AU

Year: 351 Days

Day: 6 Hours

Environment

Temp: -152 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,399,733 km

• M1: 186,698 km (0.093 R)
• M2: 653,743 km (0.076 R)
• M3: 1,180,926 km (0.092 R)
• M4: 1,727,556 km (0.115 R)
• M5: 2,355,269 km (0.105 R)
• M6: 2,911,025 km (0.038 R)
• M7: 3,518,841 km (0.057 R)
• M8: 4,993,128 km (0.103 R)
• M9: 5,670,657 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.1

Radius: 8.9

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.65 AU - 0.65 AU

Year: 368 Days

Day: 5.4 Hours

Environment

Temp: -150 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,399,733 km

• M1: 110,702 km (0.118 R)
• M2: 501,003 km (0.109 R)
• M3: 806,632 km (0.102 R)
• M4: 1,554,621 km (0.082 R)
• M5: 1,856,958 km (0.03 R)
• M6: 2,339,860 km (0.033 R)
• M7: 3,011,256 km (0.067 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.8

Radius: 11

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.72 AU - 0.82 AU

Year: 475 Days

Day: 13.3 Hours

Environment

Temp: -169 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 42,399,733 km

• M1: 136,732 km (0.048 R)
• M2: 505,790 km (0.114 R)
• M3: 852,109 km (0.1 R)
• M4: 1,232,387 km (0.102 R)
• M5: 1,945,670 km (0.082 R)
• M6: 2,323,554 km (0.062 R)
• M7: 3,033,546 km (0.114 R)
• M8: 3,435,066 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 353.9

Radius: 15

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.8 AU - 0.96 AU

Year: 580 Days

Day: 11.3 Hours

Environment

Temp: -171 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 42,399,733 km

• M1: 186,698 km (0.093 R)
• M2: 765,642 km (0.052 R)
• M3: 1,263,653 km (0.049 R)
• M4: 1,797,568 km (0.065 R)
• M5: 2,587,295 km (0.093 R)
• M6: 3,318,829 km (0.033 R)
• M7: 4,000,995 km (0.106 R)
• M8: 4,558,696 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 512.3

Radius: 14.7

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.01 AU - 1.17 AU

Year: 800 Days

Day: 11.9 Hours

Environment

Temp: -187 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,399,733 km

• M1: 182,809 km (0.119 R)
• M2: 946,207 km (0.041 R)
• M3: 1,779,616 km (0.095 R)
• M4: 2,687,077 km (0.072 R)
• M5: 3,368,944 km (0.11 R)
• M6: 3,871,892 km (0.107 R)
• M7: 5,363,532 km (0.089 R)
• M8: 5,861,693 km (0.112 R)
• M9: 7,167,533 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385.7

Radius: 14.9

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 3.43 AU - 3.47 AU

Year: 4504 Days

Day: 11.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 42,399,733 km

• M1: 185,801 km (0.081 R)
• M2: 697,276 km (0.098 R)
• M3: 1,166,115 km (0.08 R)
• M4: 1,906,924 km (0.098 R)
• M5: 2,626,939 km (0.091 R)
• M6: 3,192,269 km (0.07 R)
• M7: 4,687,051 km (0.115 R)
• M8: 5,845,387 km (0.083 R)
• M9: 7,031,998 km (0.074 R)
• M10: 9,459,373 km (0.113 R)
• M11: 9,958,132 km (0.105 R)
• M12: 12,266,427 km (0.09 R)
• M13: 12,907,005 km (0.099 R)
• M14: 16,016,397 km (0.109 R)
• M15: 17,458,072 km (0.05 R)
• M16: 18,093,414 km (0.12 R)
• M17: 19,045,155 km (0.051 R)
• M18: 19,533,443 km (0.039 R)
• M19: 21,835,006 km (0.068 R)
• M20: 22,302,799 km (0.074 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 128.6

Radius: 5.3

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 8.8 AU - 9.34 AU

Year: 19201 Days

Day: 16.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 42,399,733 km

• M1: 71,209 km (0.053 R)
• M2: 245,939 km (0.099 R)
• M3: 703,858 km (0.114 R)
• M4: 1,573,470 km (0.11 R)
• M5: 1,759,271 km (0.04 R)
• M6: 1,928,017 km (0.028 R)
• M7: 2,462,979 km (0.092 R)
• M8: 4,053,654 km (0.113 R)
• M9: 5,263,003 km (0.071 R)
• M10: 5,615,754 km (0.116 R)
• M11: 8,541,141 km (0.091 R)
• M12: 8,938,473 km (0.096 R)
• M13: 10,956,698 km (0.078 R)
• M14: 11,267,861 km (0.084 R)
• M15: 13,143,519 km (0.071 R)
• M16: 13,972,890 km (0.086 R)
• M17: 19,242,475 km (0.101 R)
• M18: 21,497,962 km (0.083 R)
• M19: 25,247,034 km (0.105 R)
• M20: 26,155,991 km (0.1 R)
• M21: 26,711,747 km (0.112 R)
• M22: 26,992,542 km (0.065 R)
• M23: 30,517,666 km (0.113 R)
• M24: 31,030,189 km (0.066 R)
• M25: 33,030,761 km (0.101 R)
• M26: 36,247,414 km (0.074 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 181 - 16,857 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit