🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.8

Radius: 1.51

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.48 AU - 0.8 AU

Year: 189 Days

Day: 22.6 Hours

Environment

Temp: 135 °C

Axial Tilt: 31.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.58

Radius: 0.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.65 AU - 0.89 AU

Year: 249 Days

Day: 41.7 Hours

Environment

Temp: 153 °C

Axial Tilt: 35.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.12

Radius: 0.43

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.94 AU - 1.4 AU

Year: 467 Days

Day: 20.8 Hours

Environment

Temp: -11 °C

Axial Tilt: 23.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.28

Radius: 1.39

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.35 AU - 1.73 AU

Year: 705 Days

Day: 45.1 Hours

Environment

Temp: -48 °C

Axial Tilt: 11.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 28,719,135 km

• M1: 211,382 km (0.099 R)
• M2: 516,113 km (0.076 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.48

Radius: 0.75

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 3.27 AU - 4.57 AU

Year: 2864 Days

Day: 42.8 Hours

Environment

Temp: -133 °C

Axial Tilt: 39.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409.5

Radius: 8.1

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 4.15 AU - 6.01 AU

Year: 4224 Days

Day: 8.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 28,719,135 km

• M1: 134,339 km (0.055 R)
• M2: 201,209 km (0.118 R)
• M3: 324,029 km (0.091 R)
• M4: 603,328 km (0.04 R)
• M5: 732,282 km (0.038 R)
• M6: 915,240 km (0.112 R)
• M7: 983,456 km (0.049 R)
• M8: 1,065,137 km (0.096 R)
• M9: 1,125,126 km (0.074 R)
• M10: 1,350,420 km (0.09 R)
• M11: 1,562,849 km (0.115 R)
• M12: 1,659,190 km (0.094 R)
• M13: 2,079,710 km (0.103 R)
• M14: 2,404,487 km (0.083 R)
• M15: 2,712,060 km (0.107 R)
• M16: 2,795,087 km (0.086 R)
• M17: 2,895,916 km (0.119 R)
• M18: 2,980,887 km (0.106 R)
• M19: 3,049,553 km (0.041 R)
• M20: 3,490,118 km (0.063 R)
• M21: 3,580,625 km (0.119 R)
• M22: 3,671,880 km (0.102 R)
• M23: 3,782,582 km (0.034 R)
• M24: 3,856,932 km (0.106 R)
• M25: 4,352,400 km (0.027 R)
• M26: 4,489,133 km (0.098 R)
• M27: 4,807,328 km (0.076 R)
• M28: 4,867,765 km (0.101 R)
• M29: 5,549,632 km (0.083 R)
• M30: 6,482,525 km (0.058 R)
• M31: 6,616,564 km (0.096 R)
• M32: 6,728,912 km (0.069 R)
• M33: 7,115,922 km (0.109 R)
• M34: 7,184,887 km (0.067 R)
• M35: 7,510,112 km (0.069 R)
• M36: 7,580,423 km (0.119 R)
• M37: 7,745,280 km (0.058 R)
• M38: 7,816,339 km (0.091 R)
• M39: 8,126,755 km (0.05 R)
• M40: 8,441,060 km (0.118 R)
• M41: 8,514,213 km (0.111 R)
• M42: 8,685,652 km (0.106 R)
• M43: 9,636,347 km (0.089 R)
• M44: 9,866,279 km (0.118 R)
• M45: 10,098,006 km (0.094 R)
• M46: 10,227,558 km (0.102 R)
• M47: 10,409,917 km (0.111 R)
• M48: 10,698,492 km (0.106 R)
• M49: 11,445,284 km (0.082 R)
• M50: 11,499,140 km (0.084 R)
• M51: 11,634,526 km (0.059 R)
• M52: 12,153,630 km (0.061 R)
• M53: 12,568,615 km (0.119 R)
• M54: 12,680,215 km (0.098 R)
• M55: 13,044,785 km (0.065 R)
• M56: 13,129,457 km (0.113 R)
• M57: 13,612,509 km (0.079 R)
• M58: 13,669,655 km (0.105 R)
• M59: 13,899,288 km (0.118 R)
• M60: 13,956,883 km (0.084 R)
• M61: 14,595,965 km (0.093 R)
• M62: 14,919,096 km (0.108 R)
• M63: 15,037,129 km (0.087 R)
• M64: 15,155,461 km (0.085 R)
• M65: 16,053,198 km (0.088 R)
• M66: 16,753,166 km (0.083 R)
• M67: 17,338,842 km (0.057 R)
• M68: 17,494,125 km (0.074 R)
• M69: 17,837,302 km (0.112 R)
• M70: 17,899,984 km (0.036 R)
• M71: 18,119,743 km (0.115 R)
• M72: 18,182,724 km (0.1 R)
• M73: 18,562,104 km (0.077 R)
• M74: 19,039,919 km (0.045 R)
• M75: 19,489,461 km (0.118 R)
• M76: 21,289,722 km (0.046 R)
• M77: 21,455,925 km (0.104 R)
• M78: 21,622,577 km (0.112 R)
• M79: 22,058,056 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.7

Radius: 13.1

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 7.07 AU - 8.21 AU

Year: 7791 Days

Day: 14.4 Hours

Environment

Temp: -155 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (65)

Outer Limit: 28,719,135 km

• M1: 179,667 km (0.094 R)
• M2: 334,052 km (0.091 R)
• M3: 417,528 km (0.109 R)
• M4: 797,057 km (0.098 R)
• M5: 985,850 km (0.057 R)
• M6: 1,218,923 km (0.09 R)
• M7: 1,516,922 km (0.08 R)
• M8: 1,855,163 km (0.084 R)
• M9: 2,199,986 km (0.07 R)
• M10: 2,584,154 km (0.031 R)
• M11: 2,774,741 km (0.032 R)
• M12: 2,891,428 km (0.115 R)
• M13: 4,058,441 km (0.071 R)
• M14: 4,348,661 km (0.098 R)
• M15: 4,855,199 km (0.081 R)
• M16: 5,067,927 km (0.099 R)
• M17: 6,126,631 km (0.094 R)
• M18: 6,485,965 km (0.098 R)
• M19: 6,694,355 km (0.052 R)
• M20: 7,604,957 km (0.114 R)
• M21: 7,742,139 km (0.092 R)
• M22: 8,158,769 km (0.082 R)
• M23: 8,697,171 km (0.087 R)
• M24: 9,101,086 km (0.109 R)
• M25: 9,393,549 km (0.12 R)
• M26: 9,897,844 km (0.06 R)
• M27: 10,380,447 km (0.065 R)
• M28: 11,274,892 km (0.094 R)
• M29: 11,683,893 km (0.103 R)
• M30: 11,810,752 km (0.116 R)
• M31: 12,711,481 km (0.045 R)
• M32: 13,071,413 km (0.058 R)
• M33: 13,269,032 km (0.097 R)
• M34: 14,002,660 km (0.11 R)
• M35: 14,137,448 km (0.091 R)
• M36: 14,612,720 km (0.079 R)
• M37: 15,093,228 km (0.12 R)
• M38: 15,404,841 km (0.058 R)
• M39: 15,999,343 km (0.076 R)
• M40: 16,175,569 km (0.076 R)
• M41: 16,423,453 km (0.119 R)
• M42: 16,601,325 km (0.086 R)
• M43: 16,851,452 km (0.115 R)
• M44: 17,355,298 km (0.114 R)
• M45: 17,900,582 km (0.059 R)
• M46: 18,414,750 km (0.107 R)
• M47: 18,970,955 km (0.104 R)
• M48: 19,270,001 km (0.067 R)
• M49: 19,495,146 km (0.103 R)
• M50: 20,252,261 km (0.12 R)
• M51: 21,018,950 km (0.102 R)
• M52: 21,795,213 km (0.081 R)
• M53: 22,659,889 km (0.082 R)
• M54: 22,857,956 km (0.076 R)
• M55: 23,656,061 km (0.101 R)
• M56: 23,897,362 km (0.116 R)
• M57: 24,220,344 km (0.042 R)
• M58: 24,341,818 km (0.117 R)
• M59: 24,829,656 km (0.065 R)
• M60: 25,197,667 km (0.103 R)
• M61: 25,897,785 km (0.064 R)
• M62: 27,233,096 km (0.093 R)
• M63: 27,612,775 km (0.104 R)
• M64: 28,164,043 km (0.039 R)
• M65: 28,590,696 km (0.098 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 464 - 18,918 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit