🌌 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: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.54

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.47 AU - 0.67 AU

Year: 278 Days

Day: 28.7 Hours

Environment

Temp: -122 °C

Axial Tilt: 13.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452

Radius: 14.9

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.7 AU - 1.06 AU

Year: 533 Days

Day: 12.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 59,004,936 km

• M1: 185,352 km (0.111 R)
• M2: 834,457 km (0.085 R)
• M3: 1,355,058 km (0.074 R)
• M4: 1,823,748 km (0.107 R)
• M5: 2,366,938 km (0.042 R)
• M6: 2,997,193 km (0.059 R)
• M7: 3,482,489 km (0.087 R)
• M8: 4,140,121 km (0.092 R)
• M9: 4,672,390 km (0.072 R)
• M10: 5,656,445 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.8

Radius: 9.7

Gravity: 8.86 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.37 AU - 1.37 AU

Year: 1035 Days

Day: 8.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 59,004,936 km

• M1: 120,576 km (0.051 R)
• M2: 463,005 km (0.115 R)
• M3: 819,198 km (0.061 R)
• M4: 1,917,845 km (0.083 R)
• M5: 2,390,275 km (0.09 R)
• M6: 2,717,445 km (0.079 R)
• M7: 3,584,664 km (0.067 R)
• M8: 4,049,166 km (0.081 R)
• M9: 4,626,314 km (0.116 R)
• M10: 5,858,103 km (0.083 R)
• M11: 6,208,760 km (0.075 R)
• M12: 7,573,991 km (0.075 R)
• M13: 9,572,020 km (0.063 R)
• M14: 10,468,111 km (0.108 R)
• M15: 10,920,345 km (0.082 R)
• M16: 11,251,256 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 224.6

Radius: 13.2

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.45 AU - 1.53 AU

Year: 1174 Days

Day: 6 Hours

Environment

Temp: -169 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,004,936 km

• M1: 164,258 km (0.069 R)
• M2: 676,033 km (0.118 R)
• M3: 1,319,752 km (0.105 R)
• M4: 1,782,758 km (0.081 R)
• M5: 2,488,261 km (0.114 R)
• M6: 3,134,375 km (0.059 R)
• M7: 4,005,782 km (0.115 R)
• M8: 4,715,624 km (0.075 R)
• M9: 5,275,569 km (0.09 R)
• M10: 6,013,535 km (0.105 R)
• M11: 7,447,431 km (0.119 R)
• M12: 7,902,956 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.1

Radius: 10.6

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.47 AU - 2.15 AU

Year: 1572 Days

Day: 13.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 59,004,936 km

• M1: 136,433 km (0.12 R)
• M2: 678,576 km (0.102 R)
• M3: 1,081,293 km (0.099 R)
• M4: 1,444,367 km (0.108 R)
• M5: 2,426,477 km (0.104 R)
• M6: 2,873,476 km (0.096 R)
• M7: 3,479,347 km (0.098 R)
• M8: 4,243,643 km (0.113 R)
• M9: 5,874,559 km (0.068 R)
• M10: 6,300,763 km (0.114 R)
• M11: 7,412,874 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 217.1

Radius: 13

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1.82 AU - 2.02 AU

Year: 1718 Days

Day: 7 Hours

Environment

Temp: -193 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 59,004,936 km

• M1: 161,715 km (0.104 R)
• M2: 702,661 km (0.093 R)
• M3: 1,302,399 km (0.047 R)
• M4: 2,213,001 km (0.104 R)
• M5: 2,878,113 km (0.101 R)
• M6: 3,570,153 km (0.113 R)
• M7: 4,421,365 km (0.095 R)
• M8: 4,986,995 km (0.12 R)
• M9: 5,442,670 km (0.06 R)
• M10: 5,864,087 km (0.063 R)
• M11: 6,307,495 km (0.069 R)
• M12: 7,749,170 km (0.084 R)
• M13: 8,154,580 km (0.055 R)
• M14: 8,600,980 km (0.091 R)
• M15: 9,091,511 km (0.116 R)
• M16: 9,542,998 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 317.8

Radius: 5.2

Gravity: 11.75 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 8.38 AU - 11.38 AU

Year: 20052 Days

Day: 24.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 59,004,936 km

• M1: 64,626 km (0.07 R)
• M2: 226,342 km (0.03 R)
• M3: 529,128 km (0.069 R)
• M4: 1,330,972 km (0.114 R)
• M5: 1,688,062 km (0.106 R)
• M6: 2,182,783 km (0.049 R)
• M7: 2,591,783 km (0.111 R)
• M8: 2,769,057 km (0.115 R)
• M9: 3,074,386 km (0.084 R)
• M10: 4,589,214 km (0.092 R)
• M11: 6,145,032 km (0.118 R)
• M12: 7,655,372 km (0.101 R)
• M13: 10,360,101 km (0.118 R)
• M14: 12,417,670 km (0.114 R)
• M15: 13,052,115 km (0.051 R)
• M16: 14,316,666 km (0.081 R)
• M17: 15,515,543 km (0.074 R)
• M18: 20,108,347 km (0.042 R)
• M19: 21,338,790 km (0.036 R)
• M20: 21,972,486 km (0.11 R)
• M21: 25,029,669 km (0.104 R)
• M22: 29,456,868 km (0.034 R)
• M23: 34,625,774 km (0.107 R)
• M24: 35,879,404 km (0.081 R)
• M25: 40,367,938 km (0.104 R)
• M26: 52,537,875 km (0.085 R)
• M27: 54,024,429 km (0.073 R)
• M28: 57,775,894 km (0.067 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 408 - 17,355 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit