🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.88

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.75 AU - 0.85 AU

Year: 253 Days

Day: 39.4 Hours

Environment

Temp: 135 °C

Axial Tilt: 37.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.93

Radius: 0.97

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.06 AU - 1.4 AU

Year: 482 Days

Day: 30.2 Hours

Environment

Temp: 33 °C

Axial Tilt: 6.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.27

Radius: 1.1

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.52 AU - 1.78 AU

Year: 748 Days

Day: 24.7 Hours

Environment

Temp: -38 °C

Axial Tilt: 49.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 40,700,142 km

• M1: 71,209 km (0.052 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.31

Radius: 0.63

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.63 AU - 2.07 AU

Year: 888 Days

Day: 17.2 Hours

Environment

Temp: -55 °C

Axial Tilt: 28.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.56

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 2.41 AU - 3.07 AU

Year: 1601 Days

Day: 22.2 Hours

Environment

Temp: -85 °C

Axial Tilt: 39.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.77

Radius: 1.26

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 3.84 AU - 5.22 AU

Year: 3404 Days

Day: 43.7 Hours

Environment

Temp: -118 °C

Axial Tilt: 32.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.82

Radius: 0.92

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 4.44 AU - 4.66 AU

Year: 3427 Days

Day: 35.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 6.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 40,700,142 km

• M1: 39,045 km (0.031 R)
• M2: 267,780 km (0.094 R)

Asteroid Belt

Center: 6.74 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 8.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.9

Radius: 15

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 6.88 AU - 10.96 AU

Year: 9407 Days

Day: 11.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 40,700,142 km

• M1: 193,131 km (0.113 R)
• M2: 301,141 km (0.082 R)
• M3: 510,578 km (0.073 R)
• M4: 639,531 km (0.039 R)
• M5: 767,138 km (0.1 R)
• M6: 1,018,612 km (0.084 R)
• M7: 1,155,344 km (0.057 R)
• M8: 1,976,936 km (0.096 R)
• M9: 2,218,536 km (0.118 R)
• M10: 2,446,673 km (0.107 R)
• M11: 2,540,172 km (0.104 R)
• M12: 2,803,763 km (0.119 R)
• M13: 2,976,250 km (0.077 R)
• M14: 3,076,480 km (0.075 R)
• M15: 3,203,489 km (0.113 R)
• M16: 3,436,413 km (0.074 R)
• M17: 3,594,986 km (0.052 R)
• M18: 3,892,088 km (0.115 R)
• M19: 4,367,061 km (0.11 R)
• M20: 4,772,471 km (0.101 R)
• M21: 5,650,910 km (0.069 R)
• M22: 6,513,491 km (0.103 R)
• M23: 6,744,022 km (0.105 R)
• M24: 7,145,393 km (0.111 R)
• M25: 7,315,037 km (0.028 R)
• M26: 7,451,620 km (0.11 R)
• M27: 7,623,657 km (0.048 R)
• M28: 8,467,838 km (0.065 R)
• M29: 9,047,081 km (0.092 R)
• M30: 10,705,972 km (0.081 R)
• M31: 11,570,348 km (0.043 R)
• M32: 11,769,912 km (0.099 R)
• M33: 13,115,844 km (0.094 R)
• M34: 13,533,371 km (0.056 R)
• M35: 13,955,237 km (0.108 R)
• M36: 14,510,245 km (0.039 R)
• M37: 14,898,751 km (0.107 R)
• M38: 16,040,332 km (0.069 R)
• M39: 17,575,356 km (0.109 R)
• M40: 17,759,062 km (0.115 R)
• M41: 18,406,971 km (0.114 R)
• M42: 20,880,871 km (0.091 R)
• M43: 21,124,267 km (0.064 R)
• M44: 21,221,954 km (0.102 R)
• M45: 21,564,683 km (0.118 R)
• M46: 21,662,968 km (0.104 R)
• M47: 22,057,608 km (0.063 R)
• M48: 22,804,101 km (0.089 R)
• M49: 23,054,677 km (0.104 R)
• M50: 23,660,100 km (0.115 R)
• M51: 24,219,596 km (0.047 R)
• M52: 25,041,188 km (0.108 R)
• M53: 25,819,695 km (0.075 R)
• M54: 25,924,114 km (0.093 R)
• M55: 26,238,120 km (0.081 R)
• M56: 26,553,472 km (0.111 R)
• M57: 27,188,067 km (0.086 R)
• M58: 27,934,560 km (0.119 R)
• M59: 28,364,205 km (0.105 R)
• M60: 28,958,557 km (0.083 R)
• M61: 29,611,702 km (0.075 R)
• M62: 30,324,685 km (0.101 R)
• M63: 30,877,001 km (0.108 R)
• M64: 31,209,856 km (0.105 R)
• M65: 32,441,046 km (0.084 R)
• M66: 32,949,230 km (0.116 R)
• M67: 33,289,565 km (0.06 R)
• M68: 33,574,101 km (0.091 R)
• M69: 35,066,339 km (0.113 R)
• M70: 35,820,612 km (0.105 R)
• M71: 35,995,342 km (0.087 R)
• M72: 36,228,864 km (0.025 R)
• M73: 36,814,989 km (0.107 R)
• M74: 37,109,098 km (0.104 R)
• M75: 38,711,291 km (0.079 R)
• M76: 39,310,431 km (0.099 R)
• M77: 39,973,149 km (0.092 R)
• M78: 40,336,074 km (0.034 R)

Kuiper Belt

Range: 31.1 - 60.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 365 - 19,533 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit