🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.54

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.56 AU - 0.78 AU

Year: 360 Days

Day: 12.6 Hours

Environment

Temp: -132 °C

Axial Tilt: 20.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.64

Radius: 1.47

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.59 AU - 0.75 AU

Year: 360 Days

Day: 22.3 Hours

Environment

Temp: -126 °C

Axial Tilt: 34.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 47,380,861 km

• M1: 34,258 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.4

Radius: 8.5

Gravity: 12.19 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.74 AU - 0.8 AU

Year: 443 Days

Day: 6.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 47,380,861 km

• M1: 106,065 km (0.103 R)
• M2: 455,226 km (0.064 R)
• M3: 734,825 km (0.079 R)
• M4: 1,233,434 km (0.108 R)
• M5: 1,658,442 km (0.11 R)
• M6: 2,169,768 km (0.072 R)
• M7: 2,614,073 km (0.106 R)
• M8: 2,902,348 km (0.071 R)
• M9: 3,344,410 km (0.032 R)
• M10: 3,620,418 km (0.051 R)
• M11: 4,724,899 km (0.117 R)
• M12: 5,646,123 km (0.09 R)
• M13: 5,948,311 km (0.109 R)
• M14: 6,393,364 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385.2

Radius: 11.5

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.71 AU - 0.95 AU

Year: 496 Days

Day: 14.3 Hours

Environment

Temp: -148 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 47,380,861 km

• M1: 143,464 km (0.102 R)
• M2: 816,505 km (0.115 R)
• M3: 1,221,467 km (0.091 R)
• M4: 2,140,446 km (0.049 R)
• M5: 2,553,336 km (0.03 R)
• M6: 2,977,895 km (0.06 R)
• M7: 3,566,114 km (0.092 R)
• M8: 4,034,505 km (0.05 R)
• M9: 4,460,709 km (0.073 R)
• M10: 4,872,702 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.4

Radius: 12.8

Gravity: 2.86 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.97 AU - 1.01 AU

Year: 646 Days

Day: 14.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 47,380,861 km

• M1: 159,621 km (0.119 R)
• M2: 698,323 km (0.086 R)
• M3: 1,125,724 km (0.076 R)
• M4: 1,804,001 km (0.043 R)
• M5: 2,627,537 km (0.113 R)
• M6: 4,039,292 km (0.059 R)
• M7: 4,936,131 km (0.038 R)
• M8: 5,870,968 km (0.12 R)
• M9: 6,681,340 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 80.1

Radius: 8.1

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.94 AU - 1.36 AU

Year: 809 Days

Day: 11.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 47,380,861 km

• M1: 108,907 km (0.078 R)
• M2: 568,622 km (0.072 R)
• M3: 932,294 km (0.116 R)
• M4: 1,223,711 km (0.114 R)
• M5: 1,915,152 km (0.08 R)
• M6: 2,834,880 km (0.09 R)
• M7: 3,704,342 km (0.102 R)
• M8: 4,257,256 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 189.1

Radius: 13.1

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.86 AU - 2.52 AU

Year: 2126 Days

Day: 10.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 47,380,861 km

• M1: 164,707 km (0.053 R)
• M2: 612,753 km (0.117 R)
• M3: 1,730,099 km (0.057 R)
• M4: 2,202,380 km (0.041 R)
• M5: 3,457,656 km (0.078 R)
• M6: 4,971,885 km (0.072 R)
• M7: 5,543,648 km (0.12 R)
• M8: 6,609,683 km (0.08 R)
• M9: 7,451,620 km (0.099 R)
• M10: 9,704,414 km (0.105 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 367.8

Radius: 14.8

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 2.58 AU - 2.7 AU

Year: 2814 Days

Day: 6.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 47,380,861 km

• M1: 184,005 km (0.054 R)
• M2: 834,307 km (0.053 R)
• M3: 1,517,970 km (0.025 R)
• M4: 2,227,512 km (0.091 R)
• M5: 2,833,084 km (0.073 R)
• M6: 3,329,450 km (0.085 R)
• M7: 3,921,110 km (0.097 R)
• M8: 5,409,459 km (0.064 R)
• M9: 6,257,230 km (0.069 R)
• M10: 6,861,606 km (0.043 R)
• M11: 7,855,983 km (0.098 R)
• M12: 9,955,589 km (0.065 R)
• M13: 10,489,204 km (0.09 R)
• M14: 12,407,199 km (0.109 R)
• M15: 13,152,046 km (0.094 R)
• M16: 13,970,347 km (0.096 R)
• M17: 15,006,162 km (0.085 R)
• M18: 16,044,372 km (0.095 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 929.7

Radius: 13.2

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 3.93 AU - 5.89 AU

Year: 7137 Days

Day: 6.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 47,380,861 km

• M1: 164,109 km (0.051 R)
• M2: 583,731 km (0.062 R)
• M3: 1,081,144 km (0.047 R)
• M4: 1,765,704 km (0.077 R)
• M5: 2,234,095 km (0.104 R)
• M6: 2,825,904 km (0.082 R)
• M7: 3,314,490 km (0.113 R)
• M8: 4,491,826 km (0.094 R)
• M9: 5,410,057 km (0.092 R)
• M10: 6,238,680 km (0.117 R)
• M11: 16,054,395 km (0.056 R)
• M12: 16,791,912 km (0.111 R)
• M13: 17,762,952 km (0.107 R)
• M14: 19,439,047 km (0.114 R)
• M15: 20,199,752 km (0.074 R)
• M16: 21,699,919 km (0.063 R)
• M17: 22,188,805 km (0.091 R)
• M18: 25,910,052 km (0.086 R)
• M19: 28,351,489 km (0.086 R)
• M20: 31,458,487 km (0.096 R)
• M21: 35,231,495 km (0.118 R)
• M22: 40,267,558 km (0.097 R)
• M23: 41,254,605 km (0.103 R)

Planet 10 - Gas Giant

Semi-Major Axis: 5.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 800.3

Radius: 8.8

Gravity: 10.33 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 5.63 AU - 5.91 AU

Year: 9092 Days

Day: 10.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 47,380,861 km

• M1: 109,954 km (0.073 R)
• M2: 389,702 km (0.089 R)
• M3: 813,214 km (0.081 R)
• M4: 1,262,307 km (0.083 R)
• M5: 1,870,721 km (0.067 R)
• M6: 2,296,627 km (0.104 R)
• M7: 2,765,167 km (0.111 R)
• M8: 3,512,558 km (0.118 R)
• M9: 3,867,853 km (0.102 R)
• M10: 4,359,880 km (0.051 R)
• M11: 5,048,629 km (0.11 R)
• M12: 8,771,970 km (0.11 R)
• M13: 9,096,149 km (0.083 R)
• M14: 9,621,836 km (0.082 R)
• M15: 10,016,774 km (0.032 R)
• M16: 11,761,534 km (0.114 R)
• M17: 12,735,117 km (0.113 R)
• M18: 14,647,576 km (0.039 R)
• M19: 18,423,427 km (0.104 R)
• M20: 19,032,888 km (0.056 R)
• M21: 23,951,217 km (0.067 R)
• M22: 26,078,200 km (0.061 R)
• M23: 27,629,979 km (0.046 R)
• M24: 32,213,957 km (0.055 R)
• M25: 33,772,467 km (0.075 R)
• M26: 34,800,504 km (0.065 R)
• M27: 36,085,250 km (0.117 R)
• M28: 38,255,317 km (0.09 R)
• M29: 39,122,237 km (0.085 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 402 - 20,194 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit