🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.59

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.54 AU - 0.56 AU

Year: 154 Days

Day: 45.7 Hours

Environment

Temp: 186 °C

Axial Tilt: 19.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.69

Radius: 1.49

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.54 AU - 0.88 AU

Year: 227 Days

Day: 46.6 Hours

Environment

Temp: 123 °C

Axial Tilt: 41.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 100,740,954 km

• M1: 448,046 km (0.075 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.62

Radius: 0.83

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 2.55 AU - 3.21 AU

Year: 1851 Days

Day: 42.7 Hours

Environment

Temp: -102 °C

Axial Tilt: 110.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.45

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 3.05 AU - 4.03 AU

Year: 2523 Days

Day: 40.2 Hours

Environment

Temp: -125 °C

Axial Tilt: 15.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 2.69 AU - 4.43 AU

Year: 2544 Days

Day: 21.5 Hours

Environment

Temp: -119 °C

Axial Tilt: 103.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.82 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250.7

Radius: 14.6

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 4.82 AU - 7.34 AU

Year: 5678 Days

Day: 10.3 Hours

Environment

Temp: -157 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 100,740,954 km

• M1: 181,761 km (0.032 R)
• M2: 666,758 km (0.046 R)
• M3: 1,663,379 km (0.103 R)
• M4: 2,496,938 km (0.117 R)
• M5: 4,084,022 km (0.096 R)
• M6: 4,924,164 km (0.066 R)
• M7: 5,877,102 km (0.06 R)
• M8: 7,292,597 km (0.12 R)
• M9: 7,778,790 km (0.088 R)
• M10: 8,531,118 km (0.069 R)
• M11: 9,406,864 km (0.068 R)
• M12: 10,503,416 km (0.096 R)
• M13: 13,472,485 km (0.06 R)
• M14: 15,175,806 km (0.097 R)
• M15: 16,351,945 km (0.056 R)
• M16: 17,301,742 km (0.089 R)
• M17: 19,681,993 km (0.066 R)
• M18: 21,145,509 km (0.08 R)
• M19: 23,092,825 km (0.062 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 336.4

Radius: 13.4

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 6.79 AU - 10.61 AU

Year: 9719 Days

Day: 12.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 100,740,954 km

• M1: 166,652 km (0.092 R)
• M2: 1,225,057 km (0.091 R)
• M3: 1,710,053 km (0.079 R)
• M4: 2,161,689 km (0.083 R)
• M5: 2,657,008 km (0.106 R)
• M6: 3,228,172 km (0.065 R)
• M7: 4,380,824 km (0.118 R)
• M8: 5,271,231 km (0.061 R)
• M9: 6,212,351 km (0.096 R)
• M10: 6,793,688 km (0.118 R)
• M11: 8,306,123 km (0.101 R)
• M12: 8,927,702 km (0.087 R)
• M13: 10,032,632 km (0.056 R)
• M14: 13,954,041 km (0.113 R)
• M15: 16,964,847 km (0.11 R)
• M16: 18,797,122 km (0.118 R)
• M17: 21,287,927 km (0.072 R)
• M18: 23,498,385 km (0.102 R)
• M19: 26,471,792 km (0.099 R)
• M20: 34,509,386 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 75.8

Radius: 6

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 13.16 AU - 14.52 AU

Year: 19501 Days

Day: 16.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 100,740,954 km

• M1: 76,893 km (0.098 R)
• M2: 749,186 km (0.064 R)
• M3: 1,249,142 km (0.098 R)
• M4: 1,559,408 km (0.088 R)
• M5: 2,581,461 km (0.085 R)
• M6: 2,944,385 km (0.095 R)
• M7: 3,819,982 km (0.061 R)
• M8: 4,422,113 km (0.063 R)
• M9: 5,114,602 km (0.086 R)
• M10: 6,643,193 km (0.086 R)
• M11: 17,084,825 km (0.092 R)
• M12: 20,128,842 km (0.03 R)
• M13: 28,906,497 km (0.113 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 673.6

Radius: 7.7

Gravity: 11.36 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 14.34 AU - 23.14 AU

Year: 30726 Days

Day: 15.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 100,740,954 km

• M1: 96,939 km (0.079 R)
• M2: 635,193 km (0.077 R)
• M3: 962,812 km (0.08 R)
• M4: 1,211,892 km (0.104 R)
• M5: 1,844,392 km (0.101 R)
• M6: 2,499,930 km (0.079 R)
• M7: 3,455,860 km (0.055 R)
• M8: 3,913,480 km (0.079 R)
• M9: 5,276,915 km (0.065 R)
• M10: 6,881,203 km (0.09 R)
• M11: 9,328,325 km (0.069 R)
• M12: 9,892,159 km (0.071 R)
• M13: 12,451,330 km (0.119 R)
• M14: 18,539,066 km (0.063 R)
• M15: 21,726,548 km (0.1 R)
• M16: 22,940,235 km (0.069 R)
• M17: 25,022,937 km (0.065 R)
• M18: 26,977,134 km (0.091 R)
• M19: 27,735,445 km (0.107 R)
• M20: 32,303,566 km (0.058 R)
• M21: 37,505,084 km (0.108 R)
• M22: 39,895,658 km (0.114 R)
• M23: 43,410,310 km (0.098 R)
• M24: 46,043,681 km (0.083 R)
• M25: 47,308,232 km (0.116 R)
• M26: 49,529,611 km (0.087 R)
• M27: 53,781,033 km (0.103 R)
• M28: 55,183,214 km (0.071 R)
• M29: 55,588,325 km (0.111 R)
• M30: 57,643,351 km (0.095 R)
• M31: 58,060,430 km (0.106 R)
• M32: 60,604,790 km (0.052 R)
• M33: 64,335,312 km (0.076 R)
• M34: 70,808,562 km (0.092 R)
• M35: 72,008,486 km (0.099 R)
• M36: 73,466,168 km (0.108 R)
• M37: 80,269,580 km (0.064 R)
• M38: 83,157,567 km (0.119 R)
• M39: 88,584,828 km (0.059 R)
• M40: 93,092,960 km (0.071 R)
• M41: 98,047,940 km (0.074 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: 442 - 15,761 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit