🌌 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: 795.5

Radius: 14.1

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.57 AU - 0.69 AU

Year: 333 Days

Day: 9.4 Hours

Environment

Temp: -155 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,529,975 km

• M1: 175,478 km (0.098 R)
• M2: 619,934 km (0.09 R)
• M3: 1,119,441 km (0.109 R)
• M4: 1,818,063 km (0.086 R)
• M5: 2,303,358 km (0.068 R)
• M6: 3,018,137 km (0.088 R)
• M7: 3,485,630 km (0.058 R)
• M8: 4,141,916 km (0.118 R)
• M9: 4,610,457 km (0.04 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 794

Radius: 14.5

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.66 AU - 0.68 AU

Year: 366 Days

Day: 6.7 Hours

Environment

Temp: -147 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 41,529,975 km

• M1: 184,005 km (0.11 R)
• M2: 766,539 km (0.065 R)
• M3: 1,293,872 km (0.088 R)
• M4: 1,801,906 km (0.075 R)
• M5: 2,381,897 km (0.084 R)
• M6: 2,846,698 km (0.045 R)
• M7: 3,453,317 km (0.101 R)
• M8: 3,989,626 km (0.085 R)
• M9: 4,442,010 km (0.088 R)
• M10: 5,109,216 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 613.4

Radius: 13.3

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.87 AU - 1.45 AU

Year: 833 Days

Day: 13.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 41,529,975 km

• M1: 165,754 km (0.106 R)
• M2: 694,284 km (0.094 R)
• M3: 1,265,897 km (0.084 R)
• M4: 2,226,465 km (0.104 R)
• M5: 2,801,370 km (0.119 R)
• M6: 4,316,647 km (0.109 R)
• M7: 4,846,821 km (0.115 R)
• M8: 5,346,030 km (0.099 R)
• M9: 6,139,347 km (0.068 R)
• M10: 6,746,714 km (0.11 R)
• M11: 8,229,977 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 875.6

Radius: 11.9

Gravity: 6.18 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 2.84 AU - 4.42 AU

Year: 4612 Days

Day: 14.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 41,529,975 km

• M1: 154,983 km (0.11 R)
• M2: 648,507 km (0.111 R)
• M3: 1,151,156 km (0.066 R)
• M4: 1,614,011 km (0.067 R)
• M5: 2,216,292 km (0.105 R)
• M6: 3,695,516 km (0.091 R)
• M7: 4,081,030 km (0.061 R)
• M8: 5,633,706 km (0.104 R)
• M9: 6,240,475 km (0.06 R)
• M10: 7,197,303 km (0.082 R)
• M11: 7,765,775 km (0.108 R)
• M12: 8,173,728 km (0.106 R)
• M13: 9,568,429 km (0.088 R)
• M14: 10,793,786 km (0.104 R)
• M15: 12,978,363 km (0.116 R)
• M16: 13,821,796 km (0.109 R)
• M17: 16,209,677 km (0.063 R)
• M18: 20,288,912 km (0.081 R)
• M19: 27,747,563 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.5

Radius: 13.2

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 3.81 AU - 5.51 AU

Year: 6708 Days

Day: 12.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 41,529,975 km

• M1: 165,605 km (0.07 R)
• M2: 591,211 km (0.113 R)
• M3: 1,065,586 km (0.113 R)
• M4: 1,883,288 km (0.042 R)
• M5: 3,048,954 km (0.097 R)
• M6: 4,296,002 km (0.044 R)
• M7: 5,531,082 km (0.036 R)
• M8: 7,446,384 km (0.073 R)
• M9: 8,974,975 km (0.106 R)
• M10: 9,943,770 km (0.056 R)
• M11: 11,940,603 km (0.107 R)
• M12: 13,591,266 km (0.08 R)
• M13: 14,471,350 km (0.102 R)
• M14: 16,776,204 km (0.118 R)
• M15: 17,660,328 km (0.117 R)
• M16: 18,442,575 km (0.118 R)
• M17: 19,044,407 km (0.064 R)
• M18: 28,726,980 km (0.11 R)
• M19: 30,545,791 km (0.051 R)
• M20: 31,012,237 km (0.099 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 99.7

Radius: 3.2

Gravity: 9.74 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 8.11 AU - 10.23 AU

Year: 18518 Days

Day: 16.3 Hours

Environment

Temp: -240 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 41,529,975 km

• M1: 39,793 km (0.112 R)
• M2: 707,299 km (0.058 R)
• M3: 1,128,118 km (0.064 R)
• M4: 1,886,728 km (0.079 R)
• M5: 3,454,963 km (0.074 R)
• M6: 3,883,262 km (0.117 R)
• M7: 4,618,535 km (0.099 R)
• M8: 5,504,454 km (0.077 R)
• M9: 9,179,625 km (0.067 R)
• M10: 9,312,617 km (0.105 R)
• M11: 14,998,084 km (0.116 R)
• M12: 18,766,006 km (0.078 R)
• M13: 19,705,780 km (0.079 R)
• M14: 27,087,088 km (0.03 R)
• M15: 38,021,047 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 101.4

Radius: 3.8

Gravity: 7.02 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 9.07 AU - 10.85 AU

Year: 20961 Days

Day: 20.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 41,529,975 km

• M1: 47,273 km (0.067 R)
• M2: 195,824 km (0.118 R)
• M3: 336,296 km (0.088 R)
• M4: 545,434 km (0.117 R)
• M5: 882,029 km (0.111 R)
• M6: 1,178,532 km (0.089 R)
• M7: 2,131,470 km (0.069 R)
• M8: 3,299,680 km (0.112 R)
• M9: 3,702,697 km (0.033 R)
• M10: 9,463,113 km (0.096 R)
• M11: 10,223,518 km (0.071 R)
• M12: 15,337,821 km (0.05 R)
• M13: 16,384,557 km (0.11 R)
• M14: 17,269,279 km (0.106 R)
• M15: 18,618,951 km (0.115 R)
• M16: 20,969,433 km (0.059 R)
• M17: 21,848,769 km (0.108 R)
• M18: 23,766,464 km (0.106 R)
• M19: 25,522,893 km (0.11 R)
• M20: 26,157,487 km (0.073 R)
• M21: 28,124,250 km (0.054 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: 268 - 15,475 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit