🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.87

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.67 AU - 0.67 AU

Year: 193 Days

Day: 46.5 Hours

Environment

Temp: 175 °C

Axial Tilt: 42.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 74,563,180 km

• M1: 43,982 km (0.108 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.42 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.35

Radius: 1.13

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.33 AU - 1.51 AU

Year: 595 Days

Day: 26.5 Hours

Environment

Temp: -3 °C

Axial Tilt: 49.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.05

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.59 AU - 2.51 AU

Year: 1032 Days

Day: 13.9 Hours

Environment

Temp: -48 °C

Axial Tilt: 14.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.6

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 2.04 AU - 2.72 AU

Year: 1290 Days

Day: 24 Hours

Environment

Temp: -78 °C

Axial Tilt: 7.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.57

Radius: 1.2

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 2.9 AU - 3.7 AU

Year: 2107 Days

Day: 29.4 Hours

Environment

Temp: -107 °C

Axial Tilt: 32.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.6 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.3

Radius: 10

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 5.68 AU - 6.12 AU

Year: 5037 Days

Day: 7.6 Hours

Environment

Temp: -142 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,563,180 km

• M1: 146,307 km (0.097 R)
• M2: 464,202 km (0.063 R)
• M3: 2,059,065 km (0.119 R)
• M4: 2,467,318 km (0.074 R)
• M5: 2,801,519 km (0.101 R)
• M6: 3,612,190 km (0.063 R)
• M7: 4,265,634 km (0.03 R)
• M8: 4,611,205 km (0.042 R)
• M9: 4,954,532 km (0.11 R)
• M10: 6,807,152 km (0.055 R)
• M11: 9,526,093 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385.5

Radius: 11.5

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 6.02 AU - 9.18 AU

Year: 7364 Days

Day: 8.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 74,563,180 km

• M1: 145,260 km (0.117 R)
• M2: 651,050 km (0.119 R)
• M3: 1,383,631 km (0.086 R)
• M4: 1,837,211 km (0.05 R)
• M5: 2,245,763 km (0.099 R)
• M6: 4,354,794 km (0.088 R)
• M7: 6,061,556 km (0.109 R)
• M8: 6,674,459 km (0.113 R)
• M9: 8,447,193 km (0.081 R)
• M10: 10,245,061 km (0.066 R)
• M11: 12,184,747 km (0.105 R)
• M12: 12,899,824 km (0.07 R)
• M13: 14,526,552 km (0.111 R)
• M14: 16,530,864 km (0.102 R)
• M15: 19,049,643 km (0.074 R)
• M16: 22,337,206 km (0.086 R)
• M17: 23,330,835 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 494

Radius: 3.9

Gravity: 32.48 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 12.43 AU - 17.09 AU

Year: 19930 Days

Day: 18.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 74,563,180 km

• M1: 48,470 km (0.046 R)
• M2: 301,889 km (0.068 R)
• M3: 772,823 km (0.092 R)
• M4: 954,135 km (0.094 R)
• M5: 1,244,056 km (0.084 R)
• M6: 1,997,580 km (0.06 R)
• M7: 2,427,076 km (0.095 R)
• M8: 3,275,445 km (0.113 R)
• M9: 4,434,829 km (0.099 R)
• M10: 4,805,832 km (0.078 R)
• M11: 5,160,678 km (0.111 R)
• M12: 5,609,322 km (0.115 R)
• M13: 6,456,345 km (0.049 R)
• M14: 6,888,084 km (0.112 R)
• M15: 7,111,135 km (0.043 R)
• M16: 8,349,356 km (0.045 R)
• M17: 10,004,956 km (0.088 R)
• M18: 12,252,814 km (0.052 R)
• M19: 12,514,311 km (0.096 R)
• M20: 14,450,257 km (0.109 R)
• M21: 15,794,842 km (0.074 R)
• M22: 17,302,340 km (0.108 R)
• M23: 18,133,057 km (0.086 R)
• M24: 18,558,214 km (0.103 R)
• M25: 24,293,049 km (0.117 R)
• M26: 24,705,640 km (0.102 R)
• M27: 27,391,370 km (0.063 R)
• M28: 27,614,271 km (0.088 R)
• M29: 28,290,154 km (0.087 R)
• M30: 28,746,876 km (0.1 R)
• M31: 30,146,664 km (0.098 R)
• M32: 31,713,552 km (0.12 R)
• M33: 32,330,344 km (0.092 R)
• M34: 33,081,026 km (0.054 R)
• M35: 36,468,670 km (0.119 R)
• M36: 42,865,624 km (0.067 R)
• M37: 43,015,671 km (0.116 R)
• M38: 45,464,438 km (0.07 R)
• M39: 46,406,307 km (0.1 R)
• M40: 52,331,579 km (0.078 R)
• M41: 52,503,018 km (0.072 R)
• M42: 52,674,757 km (0.11 R)
• M43: 54,413,383 km (0.115 R)
• M44: 64,663,829 km (0.056 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 542.5

Radius: 3.9

Gravity: 35.67 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 15.62 AU - 15.72 AU

Year: 21801 Days

Day: 19.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 74,563,180 km

• M1: 48,470 km (0.105 R)
• M2: 261,796 km (0.053 R)
• M3: 389,403 km (0.096 R)
• M4: 789,129 km (0.079 R)
• M5: 1,548,039 km (0.095 R)
• M6: 1,719,478 km (0.091 R)
• M7: 2,422,139 km (0.103 R)
• M8: 2,630,080 km (0.11 R)
• M9: 2,775,340 km (0.098 R)
• M10: 3,216,055 km (0.07 R)
• M11: 3,884,458 km (0.084 R)
• M12: 5,335,857 km (0.092 R)
• M13: 7,444,289 km (0.051 R)
• M14: 8,444,650 km (0.093 R)
• M15: 9,475,080 km (0.068 R)
• M16: 9,817,061 km (0.094 R)
• M17: 11,204,881 km (0.104 R)
• M18: 15,043,113 km (0.042 R)
• M19: 15,744,577 km (0.082 R)
• M20: 17,212,731 km (0.096 R)
• M21: 17,550,822 km (0.114 R)
• M22: 17,807,383 km (0.084 R)
• M23: 22,661,085 km (0.104 R)
• M24: 22,965,218 km (0.12 R)
• M25: 26,944,072 km (0.108 R)
• M26: 31,108,728 km (0.106 R)
• M27: 34,066,876 km (0.075 R)
• M28: 34,332,711 km (0.086 R)
• M29: 36,370,234 km (0.079 R)
• M30: 37,348,006 km (0.081 R)
• M31: 40,090,285 km (0.039 R)
• M32: 41,737,656 km (0.087 R)
• M33: 43,118,744 km (0.062 R)
• M34: 44,213,651 km (0.11 R)
• M35: 46,133,590 km (0.101 R)
• M36: 46,622,176 km (0.101 R)
• M37: 51,001,504 km (0.032 R)
• M38: 54,188,837 km (0.109 R)
• M39: 56,200,629 km (0.095 R)
• M40: 62,335,039 km (0.092 R)
• M41: 65,563,212 km (0.059 R)
• M42: 65,974,307 km (0.067 R)
• M43: 73,894,616 km (0.104 R)

Kuiper Belt

Range: 31.2 - 48.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 544 - 14,297 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit