🌌 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: 1.34

Radius: 1.12

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.51 AU - 0.75 AU

Year: 323 Days

Day: 33.6 Hours

Environment

Temp: -135 °C

Axial Tilt: 23.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 454.3

Radius: 10.8

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.58 AU - 0.9 AU

Year: 411 Days

Day: 13.4 Hours

Environment

Temp: -132 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 23,604,861 km

• M1: 134,339 km (0.083 R)
• M2: 643,720 km (0.096 R)
• M3: 1,119,142 km (0.103 R)
• M4: 1,458,430 km (0.083 R)
• M5: 1,890,169 km (0.079 R)
• M6: 2,397,904 km (0.101 R)
• M7: 3,162,050 km (0.1 R)
• M8: 3,560,729 km (0.109 R)
• M9: 4,473,874 km (0.095 R)
• M10: 4,891,701 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704

Radius: 8.6

Gravity: 9.52 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.71 AU - 0.93 AU

Year: 479 Days

Day: 5.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 23,604,861 km

• M1: 109,057 km (0.083 R)
• M2: 430,094 km (0.102 R)
• M3: 729,888 km (0.116 R)
• M4: 1,057,358 km (0.072 R)
• M5: 1,331,720 km (0.118 R)
• M6: 1,617,452 km (0.106 R)
• M7: 2,046,050 km (0.111 R)
• M8: 2,579,067 km (0.1 R)
• M9: 3,178,207 km (0.071 R)
• M10: 3,774,354 km (0.114 R)
• M11: 4,155,380 km (0.108 R)
• M12: 4,502,298 km (0.058 R)
• M13: 4,884,071 km (0.102 R)
• M14: 6,160,590 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904.4

Radius: 10.8

Gravity: 7.75 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.01 AU - 1.13 AU

Year: 715 Days

Day: 13.3 Hours

Environment

Temp: -163 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 23,604,861 km

• M1: 153,039 km (0.089 R)
• M2: 494,271 km (0.115 R)
• M3: 1,078,451 km (0.117 R)
• M4: 1,508,096 km (0.106 R)
• M5: 1,929,513 km (0.069 R)
• M6: 2,364,993 km (0.095 R)
• M7: 3,381,660 km (0.083 R)
• M8: 4,004,286 km (0.116 R)
• M9: 4,351,652 km (0.108 R)
• M10: 5,365,477 km (0.068 R)
• M11: 5,769,242 km (0.086 R)
• M12: 7,591,643 km (0.096 R)
• M13: 8,101,473 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599.5

Radius: 12.4

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.59 AU - 1.75 AU

Year: 1393 Days

Day: 5.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 23,604,861 km

• M1: 154,235 km (0.093 R)
• M2: 1,042,996 km (0.083 R)
• M3: 1,585,887 km (0.116 R)
• M4: 2,017,626 km (0.08 R)
• M5: 2,419,746 km (0.116 R)
• M6: 2,848,942 km (0.08 R)
• M7: 3,374,330 km (0.049 R)
• M8: 3,980,500 km (0.114 R)
• M9: 5,005,844 km (0.104 R)
• M10: 5,862,741 km (0.046 R)
• M11: 6,455,148 km (0.118 R)
• M12: 7,037,084 km (0.064 R)
• M13: 7,653,876 km (0.061 R)
• M14: 11,642,753 km (0.112 R)

Asteroid Belt

Center: 2.72 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.9

Radius: 9.3

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 2.92 AU - 4.62 AU

Year: 4726 Days

Day: 8.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 23,604,861 km

• M1: 115,639 km (0.089 R)
• M2: 906,413 km (0.12 R)
• M3: 1,395,748 km (0.087 R)
• M4: 2,078,363 km (0.044 R)
• M5: 2,844,903 km (0.081 R)
• M6: 5,724,512 km (0.058 R)
• M7: 6,050,336 km (0.093 R)
• M8: 8,529,323 km (0.109 R)
• M9: 8,988,738 km (0.092 R)
• M10: 9,326,978 km (0.111 R)
• M11: 10,100,998 km (0.054 R)
• M12: 10,690,413 km (0.076 R)
• M13: 11,031,945 km (0.074 R)
• M14: 12,141,214 km (0.099 R)
• M15: 16,211,024 km (0.074 R)
• M16: 16,561,232 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 201.6

Radius: 10.8

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 3.81 AU - 5.39 AU

Year: 6370 Days

Day: 11.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 23,604,861 km

• M1: 176,974 km (0.117 R)
• M2: 730,786 km (0.103 R)
• M3: 1,193,193 km (0.08 R)
• M4: 1,647,671 km (0.083 R)
• M5: 2,013,438 km (0.07 R)
• M6: 2,433,808 km (0.081 R)
• M7: 2,895,616 km (0.077 R)
• M8: 3,511,212 km (0.086 R)
• M9: 6,115,561 km (0.12 R)
• M10: 8,821,786 km (0.078 R)
• M11: 9,227,346 km (0.085 R)
• M12: 12,700,111 km (0.09 R)
• M13: 13,265,591 km (0.099 R)
• M14: 13,700,472 km (0.109 R)
• M15: 17,762,802 km (0.053 R)
• M16: 18,173,149 km (0.108 R)
• M17: 20,448,683 km (0.062 R)
• M18: 21,160,170 km (0.098 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 159 - 12,935 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit