🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.72

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.48 AU - 0.54 AU

Year: 239 Days

Day: 27.8 Hours

Environment

Temp: -113 °C

Axial Tilt: 5.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,153,077 km

• M1: 43,683 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88.9

Radius: 14.9

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.74 AU - 1 AU

Year: 532 Days

Day: 8.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 51,153,077 km

• M1: 186,848 km (0.063 R)
• M2: 955,930 km (0.091 R)
• M3: 1,617,153 km (0.09 R)
• M4: 2,117,857 km (0.086 R)
• M5: 2,609,436 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.8

Radius: 10.1

Gravity: 6.46 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.92 AU - 1.52 AU

Year: 884 Days

Day: 13.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 51,153,077 km

• M1: 125,662 km (0.068 R)
• M2: 464,651 km (0.078 R)
• M3: 1,021,454 km (0.073 R)
• M4: 1,339,948 km (0.05 R)
• M5: 1,700,629 km (0.082 R)
• M6: 2,312,035 km (0.055 R)
• M7: 2,716,847 km (0.069 R)
• M8: 3,626,552 km (0.114 R)
• M9: 4,002,491 km (0.109 R)
• M10: 4,940,021 km (0.103 R)
• M11: 5,346,030 km (0.052 R)
• M12: 7,014,644 km (0.053 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.2

Radius: 11.3

Gravity: 5.08 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 2.72 AU - 3.18 AU

Year: 3324 Days

Day: 14.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 51,153,077 km

• M1: 142,118 km (0.114 R)
• M2: 563,086 km (0.105 R)
• M3: 1,054,515 km (0.103 R)
• M4: 1,687,913 km (0.064 R)
• M5: 2,186,373 km (0.115 R)
• M6: 3,656,322 km (0.087 R)
• M7: 4,453,529 km (0.065 R)
• M8: 5,943,673 km (0.111 R)
• M9: 6,507,657 km (0.031 R)
• M10: 8,982,754 km (0.092 R)
• M11: 9,349,568 km (0.11 R)
• M12: 9,918,638 km (0.074 R)
• M13: 11,042,716 km (0.069 R)
• M14: 11,549,704 km (0.044 R)
• M15: 12,205,241 km (0.087 R)
• M16: 14,924,931 km (0.114 R)
• M17: 16,398,919 km (0.074 R)
• M18: 17,680,374 km (0.104 R)
• M19: 20,949,985 km (0.086 R)
• M20: 22,592,121 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 650.4

Radius: 9.9

Gravity: 6.64 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 2.93 AU - 4.73 AU

Year: 4917 Days

Day: 8.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 51,153,077 km

• M1: 123,119 km (0.119 R)
• M2: 654,790 km (0.076 R)
• M3: 993,779 km (0.119 R)
• M4: 1,965,716 km (0.106 R)
• M5: 2,876,169 km (0.03 R)
• M6: 3,416,367 km (0.118 R)
• M7: 3,864,861 km (0.084 R)
• M8: 4,523,690 km (0.114 R)
• M9: 5,255,822 km (0.066 R)
• M10: 6,125,584 km (0.059 R)
• M11: 6,595,172 km (0.079 R)
• M12: 7,892,933 km (0.059 R)
• M13: 9,191,742 km (0.068 R)
• M14: 10,147,822 km (0.038 R)
• M15: 10,583,601 km (0.107 R)
• M16: 11,353,132 km (0.119 R)
• M17: 11,680,602 km (0.107 R)
• M18: 12,014,504 km (0.104 R)
• M19: 15,426,233 km (0.119 R)
• M20: 18,326,338 km (0.07 R)
• M21: 18,907,974 km (0.079 R)
• M22: 19,435,307 km (0.101 R)
• M23: 21,858,194 km (0.046 R)
• M24: 22,512,385 km (0.114 R)
• M25: 24,787,619 km (0.054 R)
• M26: 25,739,211 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 512.1

Radius: 12.8

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 3.6 AU - 4.74 AU

Year: 5586 Days

Day: 5 Hours

Environment

Temp: -222 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 51,153,077 km

• M1: 161,715 km (0.117 R)
• M2: 634,445 km (0.057 R)
• M3: 1,085,183 km (0.094 R)
• M4: 1,769,593 km (0.117 R)
• M5: 2,960,243 km (0.115 R)
• M6: 3,827,761 km (0.089 R)
• M7: 5,424,419 km (0.106 R)
• M8: 7,153,621 km (0.098 R)
• M9: 7,567,707 km (0.067 R)
• M10: 8,868,012 km (0.09 R)
• M11: 10,096,809 km (0.104 R)
• M12: 11,670,279 km (0.047 R)
• M13: 13,349,815 km (0.112 R)
• M14: 15,813,841 km (0.084 R)
• M15: 17,491,881 km (0.095 R)
• M16: 18,310,181 km (0.042 R)
• M17: 19,352,130 km (0.069 R)
• M18: 20,090,994 km (0.073 R)
• M19: 21,625,419 km (0.111 R)
• M20: 22,202,269 km (0.107 R)
• M21: 23,236,588 km (0.068 R)
• M22: 24,302,623 km (0.092 R)
• M23: 27,027,399 km (0.084 R)
• M24: 27,528,551 km (0.115 R)
• M25: 29,156,625 km (0.075 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 238.2

Radius: 3.9

Gravity: 15.66 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 7.03 AU - 11.63 AU

Year: 18695 Days

Day: 23 Hours

Environment

Temp: -227 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 51,153,077 km

• M1: 49,218 km (0.117 R)
• M2: 235,168 km (0.114 R)
• M3: 433,235 km (0.115 R)
• M4: 570,716 km (0.065 R)
• M5: 999,463 km (0.099 R)
• M6: 1,527,245 km (0.095 R)
• M7: 1,738,776 km (0.106 R)
• M8: 2,472,853 km (0.12 R)
• M9: 2,616,168 km (0.07 R)
• M10: 2,964,880 km (0.113 R)
• M11: 3,596,482 km (0.103 R)
• M12: 4,342,677 km (0.095 R)
• M13: 4,958,272 km (0.072 R)
• M14: 5,806,941 km (0.052 R)
• M15: 7,485,877 km (0.113 R)
• M16: 8,690,888 km (0.031 R)
• M17: 10,705,224 km (0.096 R)
• M18: 11,087,147 km (0.106 R)
• M19: 11,253,500 km (0.113 R)
• M20: 11,705,435 km (0.065 R)
• M21: 11,994,009 km (0.099 R)
• M22: 12,888,006 km (0.11 R)
• M23: 15,009,603 km (0.115 R)
• M24: 17,278,554 km (0.108 R)
• M25: 18,650,217 km (0.115 R)
• M26: 19,847,449 km (0.116 R)
• M27: 22,482,166 km (0.099 R)
• M28: 28,744,483 km (0.067 R)
• M29: 29,481,252 km (0.05 R)
• M30: 30,446,757 km (0.12 R)
• M31: 33,585,171 km (0.103 R)
• M32: 37,928,147 km (0.118 R)
• M33: 49,485,180 km (0.089 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 505 - 19,361 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit