🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.76

Radius: 1.25

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.72 AU - 0.76 AU

Year: 235 Days

Day: 12.8 Hours

Environment

Temp: 180 °C

Axial Tilt: 25.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 87,737,626 km

• M1: 102,026 km (0.105 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.32

Radius: 1.8

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.2 AU - 1.34 AU

Year: 528 Days

Day: 41.5 Hours

Environment

Temp: 9 °C

Axial Tilt: 34.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 87,737,626 km

• M1: 88,861 km (0.092 R)

Asteroid Belt

Center: 3.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 5.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.8

Radius: 9.8

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 4.82 AU - 5.68 AU

Year: 4438 Days

Day: 9.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 87,737,626 km

• M1: 134,040 km (0.084 R)
• M2: 956,678 km (0.059 R)
• M3: 2,253,692 km (0.089 R)
• M4: 2,618,112 km (0.069 R)
• M5: 2,970,715 km (0.105 R)
• M6: 4,574,254 km (0.026 R)
• M7: 6,867,290 km (0.103 R)
• M8: 7,518,939 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289.7

Radius: 12.4

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 5.44 AU - 5.68 AU

Year: 4837 Days

Day: 14.1 Hours

Environment

Temp: -137 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 87,737,626 km

• M1: 156,330 km (0.083 R)
• M2: 573,259 km (0.07 R)
• M3: 1,216,081 km (0.089 R)
• M4: 1,616,704 km (0.114 R)
• M5: 2,283,312 km (0.077 R)
• M6: 3,091,889 km (0.112 R)
• M7: 3,718,255 km (0.037 R)
• M8: 4,146,255 km (0.072 R)
• M9: 4,539,398 km (0.061 R)
• M10: 6,512,743 km (0.032 R)
• M11: 10,723,175 km (0.105 R)
• M12: 11,174,961 km (0.078 R)
• M13: 11,898,117 km (0.08 R)
• M14: 13,017,857 km (0.074 R)
• M15: 14,403,582 km (0.101 R)
• M16: 16,150,736 km (0.071 R)
• M17: 17,298,151 km (0.091 R)
• M18: 20,560,432 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638.5

Radius: 9.6

Gravity: 6.93 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 6 AU - 8.04 AU

Year: 6863 Days

Day: 13.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 87,737,626 km

• M1: 119,379 km (0.074 R)
• M2: 787,483 km (0.102 R)
• M3: 1,689,558 km (0.106 R)
• M4: 2,926,434 km (0.12 R)
• M5: 4,550,019 km (0.071 R)
• M6: 4,992,829 km (0.093 R)
• M7: 7,388,639 km (0.083 R)
• M8: 7,767,720 km (0.076 R)
• M9: 11,385,744 km (0.09 R)
• M10: 13,447,203 km (0.058 R)
• M11: 13,956,135 km (0.088 R)
• M12: 14,713,848 km (0.081 R)
• M13: 15,315,232 km (0.083 R)
• M14: 15,995,603 km (0.095 R)
• M15: 18,226,107 km (0.113 R)
• M16: 21,334,152 km (0.119 R)
• M17: 22,182,671 km (0.079 R)
• M18: 24,527,319 km (0.114 R)
• M19: 26,588,927 km (0.115 R)
• M20: 27,481,129 km (0.11 R)
• M21: 28,763,482 km (0.1 R)
• M22: 30,567,183 km (0.089 R)
• M23: 30,956,287 km (0.112 R)
• M24: 33,360,624 km (0.084 R)
• M25: 34,293,517 km (0.102 R)
• M26: 36,428,877 km (0.087 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 595.2

Radius: 4.8

Gravity: 25.83 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 11.1 AU - 15.82 AU

Year: 18220 Days

Day: 20.8 Hours

Environment

Temp: -196 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 87,737,626 km

• M1: 60,288 km (0.076 R)
• M2: 254,915 km (0.115 R)
• M3: 815,757 km (0.055 R)
• M4: 1,099,544 km (0.061 R)
• M5: 2,251,897 km (0.099 R)
• M6: 2,645,638 km (0.033 R)
• M7: 3,402,005 km (0.054 R)
• M8: 3,800,384 km (0.119 R)
• M9: 4,621,976 km (0.034 R)
• M10: 6,148,472 km (0.11 R)
• M11: 6,566,299 km (0.115 R)
• M12: 8,228,332 km (0.036 R)
• M13: 8,581,233 km (0.036 R)
• M14: 8,891,649 km (0.049 R)
• M15: 10,675,603 km (0.105 R)
• M16: 11,095,375 km (0.101 R)
• M17: 13,989,794 km (0.086 R)
• M18: 14,565,148 km (0.118 R)
• M19: 14,858,659 km (0.11 R)
• M20: 16,228,527 km (0.056 R)
• M21: 16,703,350 km (0.119 R)
• M22: 23,643,794 km (0.094 R)
• M23: 29,632,645 km (0.029 R)
• M24: 33,416,574 km (0.083 R)
• M25: 33,927,151 km (0.098 R)
• M26: 34,184,460 km (0.087 R)
• M27: 36,828,602 km (0.118 R)
• M28: 39,463,918 km (0.114 R)
• M29: 40,034,185 km (0.103 R)
• M30: 46,993,927 km (0.067 R)
• M31: 49,097,572 km (0.105 R)
• M32: 50,422,860 km (0.061 R)
• M33: 50,925,808 km (0.119 R)
• M34: 52,112,717 km (0.102 R)
• M35: 53,839,974 km (0.108 R)
• M36: 56,863,347 km (0.073 R)
• M37: 60,562,753 km (0.061 R)
• M38: 63,245,791 km (0.059 R)
• M39: 64,222,815 km (0.12 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 729.9

Radius: 4.1

Gravity: 43.42 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 14.21 AU - 18.13 AU

Year: 23991 Days

Day: 23.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 87,737,626 km

• M1: 51,013 km (0.097 R)
• M2: 505,042 km (0.093 R)
• M3: 633,697 km (0.09 R)
• M4: 1,340,547 km (0.119 R)
• M5: 1,854,714 km (0.105 R)
• M6: 2,123,841 km (0.089 R)
• M7: 2,563,509 km (0.102 R)
• M8: 3,288,909 km (0.111 R)
• M9: 3,842,870 km (0.056 R)
• M10: 4,176,324 km (0.115 R)
• M11: 4,420,916 km (0.113 R)
• M12: 4,938,974 km (0.087 R)
• M13: 5,292,623 km (0.087 R)
• M14: 6,409,371 km (0.096 R)
• M15: 7,218,995 km (0.071 R)
• M16: 11,143,845 km (0.077 R)
• M17: 12,523,287 km (0.078 R)
• M18: 14,879,902 km (0.103 R)
• M19: 18,060,053 km (0.028 R)
• M20: 18,243,760 km (0.104 R)
• M21: 21,050,515 km (0.099 R)
• M22: 23,037,474 km (0.086 R)
• M23: 23,580,514 km (0.076 R)
• M24: 23,799,974 km (0.047 R)
• M25: 24,579,229 km (0.064 R)
• M26: 29,360,676 km (0.032 R)
• M27: 29,998,861 km (0.096 R)
• M28: 30,776,620 km (0.089 R)
• M29: 31,038,865 km (0.084 R)
• M30: 31,567,843 km (0.053 R)
• M31: 34,162,619 km (0.056 R)
• M32: 38,391,601 km (0.116 R)
• M33: 45,623,311 km (0.089 R)
• M34: 46,824,134 km (0.114 R)
• M35: 50,370,501 km (0.102 R)
• M36: 50,734,771 km (0.12 R)
• M37: 55,824,540 km (0.084 R)
• M38: 58,995,865 km (0.111 R)
• M39: 73,114,763 km (0.103 R)
• M40: 75,231,273 km (0.109 R)
• M41: 79,339,979 km (0.07 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 381 - 17,598 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit