🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.08

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.5 AU - 0.6 AU

Year: 263 Days

Day: 25.1 Hours

Environment

Temp: -122 °C

Axial Tilt: 43.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 84,314,616 km

• M1: 45,478 km (0.114 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.66

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.58 AU - 0.74 AU

Year: 346 Days

Day: 23.4 Hours

Environment

Temp: -138 °C

Axial Tilt: 14 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.1

Radius: 12.8

Gravity: 2.86 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.85 AU - 1.19 AU

Year: 665 Days

Day: 8.1 Hours

Environment

Temp: -156 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 84,314,616 km

• M1: 159,172 km (0.085 R)
• M2: 561,142 km (0.07 R)
• M3: 961,316 km (0.104 R)
• M4: 1,362,089 km (0.066 R)
• M5: 2,011,643 km (0.047 R)
• M6: 2,646,686 km (0.088 R)
• M7: 3,800,833 km (0.093 R)
• M8: 4,233,470 km (0.119 R)
• M9: 5,017,513 km (0.052 R)
• M10: 6,478,934 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873.9

Radius: 11.7

Gravity: 6.38 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 2.31 AU - 3.41 AU

Year: 3123 Days

Day: 8.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 84,314,616 km

• M1: 145,708 km (0.057 R)
• M2: 588,069 km (0.096 R)
• M3: 969,544 km (0.1 R)
• M4: 1,359,994 km (0.108 R)
• M5: 2,144,037 km (0.085 R)
• M6: 3,300,428 km (0.094 R)
• M7: 3,706,437 km (0.114 R)
• M8: 4,322,331 km (0.072 R)
• M9: 5,180,724 km (0.116 R)
• M10: 5,570,576 km (0.077 R)
• M11: 6,206,666 km (0.058 R)
• M12: 6,587,093 km (0.07 R)
• M13: 7,108,442 km (0.075 R)
• M14: 7,857,329 km (0.117 R)
• M15: 8,268,424 km (0.119 R)
• M16: 8,658,126 km (0.103 R)
• M17: 9,397,888 km (0.096 R)
• M18: 9,900,985 km (0.086 R)
• M19: 10,668,722 km (0.119 R)
• M20: 13,500,609 km (0.092 R)
• M21: 21,187,995 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.9

Radius: 12.8

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 2.74 AU - 3.32 AU

Year: 3405 Days

Day: 10.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 84,314,616 km

• M1: 160,219 km (0.079 R)
• M2: 705,504 km (0.073 R)
• M3: 1,228,348 km (0.065 R)
• M4: 1,698,235 km (0.119 R)
• M5: 2,152,414 km (0.113 R)
• M6: 2,565,005 km (0.078 R)
• M7: 2,997,193 km (0.041 R)
• M8: 3,948,785 km (0.101 R)
• M9: 5,997,528 km (0.06 R)
• M10: 6,737,140 km (0.101 R)
• M11: 8,641,671 km (0.049 R)
• M12: 9,699,328 km (0.094 R)
• M13: 10,279,318 km (0.1 R)
• M14: 10,923,487 km (0.048 R)
• M15: 13,251,080 km (0.07 R)
• M16: 19,406,135 km (0.083 R)
• M17: 21,344,026 km (0.05 R)
• M18: 22,061,647 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.4

Radius: 8.4

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 2.95 AU - 4.37 AU

Year: 4521 Days

Day: 12.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 125.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 84,314,616 km

• M1: 104,569 km (0.083 R)
• M2: 431,141 km (0.115 R)
• M3: 869,014 km (0.119 R)
• M4: 1,631,963 km (0.04 R)
• M5: 2,297,524 km (0.035 R)
• M6: 3,983,492 km (0.048 R)
• M7: 4,382,170 km (0.097 R)
• M8: 4,686,452 km (0.096 R)
• M9: 5,285,592 km (0.047 R)
• M10: 6,575,425 km (0.085 R)
• M11: 7,555,740 km (0.105 R)
• M12: 8,960,464 km (0.084 R)
• M13: 11,601,913 km (0.039 R)
• M14: 12,555,749 km (0.116 R)
• M15: 13,758,367 km (0.094 R)
• M16: 16,003,681 km (0.112 R)
• M17: 16,727,884 km (0.118 R)
• M18: 17,415,735 km (0.099 R)
• M19: 17,766,692 km (0.089 R)
• M20: 20,356,530 km (0.103 R)
• M21: 22,491,292 km (0.076 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 970.8

Radius: 5.7

Gravity: 29.88 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 8.21 AU - 11.25 AU

Year: 19597 Days

Day: 17.4 Hours

Environment

Temp: -237 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 84,314,616 km

• M1: 70,909 km (0.107 R)
• M2: 360,980 km (0.106 R)
• M3: 562,189 km (0.092 R)
• M4: 765,193 km (0.048 R)
• M5: 1,150,258 km (0.056 R)
• M6: 1,484,310 km (0.089 R)
• M7: 1,940,135 km (0.114 R)
• M8: 4,269,224 km (0.09 R)
• M9: 4,878,387 km (0.105 R)
• M10: 5,834,616 km (0.049 R)
• M11: 6,223,571 km (0.093 R)
• M12: 8,486,538 km (0.113 R)
• M13: 9,271,627 km (0.11 R)
• M14: 11,049,897 km (0.045 R)
• M15: 12,053,400 km (0.085 R)
• M16: 14,317,563 km (0.09 R)
• M17: 16,170,183 km (0.057 R)
• M18: 16,936,573 km (0.063 R)
• M19: 17,816,358 km (0.114 R)
• M20: 18,176,740 km (0.05 R)
• M21: 19,476,147 km (0.076 R)
• M22: 21,236,315 km (0.069 R)
• M23: 22,258,518 km (0.04 R)
• M24: 23,313,332 km (0.073 R)
• M25: 24,511,462 km (0.097 R)
• M26: 25,069,462 km (0.104 R)
• M27: 25,635,839 km (0.085 R)
• M28: 27,148,423 km (0.103 R)
• M29: 35,469,206 km (0.084 R)
• M30: 36,471,063 km (0.056 R)
• M31: 39,742,170 km (0.058 R)
• M32: 40,978,597 km (0.042 R)
• M33: 43,365,580 km (0.115 R)
• M34: 45,843,819 km (0.074 R)
• M35: 58,069,705 km (0.066 R)
• M36: 66,314,343 km (0.081 R)
• M37: 70,714,465 km (0.088 R)
• M38: 70,939,460 km (0.11 R)
• M39: 79,117,975 km (0.115 R)
• M40: 80,825,635 km (0.061 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 329 - 12,760 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit