🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.33

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.41 AU - 0.67 AU

Year: 252 Days

Day: 38.8 Hours

Environment

Temp: -127 °C

Axial Tilt: 29.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.89

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.57 AU - 0.69 AU

Year: 318 Days

Day: 37.5 Hours

Environment

Temp: -124 °C

Axial Tilt: 8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.39

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.56 AU - 0.76 AU

Year: 341 Days

Day: 39.3 Hours

Environment

Temp: -126 °C

Axial Tilt: 18.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 63,076,705 km

• M1: 42,187 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 625

Radius: 10.6

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.61 AU - 0.89 AU

Year: 413 Days

Day: 9.4 Hours

Environment

Temp: -138 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,076,705 km

• M1: 131,945 km (0.083 R)
• M2: 545,135 km (0.098 R)
• M3: 934,538 km (0.091 R)
• M4: 1,332,618 km (0.11 R)
• M5: 1,882,390 km (0.108 R)
• M6: 2,276,281 km (0.064 R)
• M7: 3,334,387 km (0.119 R)
• M8: 3,752,214 km (0.118 R)
• M9: 4,151,191 km (0.101 R)
• M10: 5,538,263 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.9

Radius: 8.5

Gravity: 10.28 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.72 AU - 1.14 AU

Year: 570 Days

Day: 5.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 63,076,705 km

• M1: 105,766 km (0.11 R)
• M2: 452,534 km (0.114 R)
• M3: 857,046 km (0.079 R)
• M4: 1,128,417 km (0.107 R)
• M5: 1,597,556 km (0.084 R)
• M6: 2,376,512 km (0.072 R)
• M7: 2,984,029 km (0.112 R)
• M8: 3,664,250 km (0.044 R)
• M9: 4,521,446 km (0.117 R)
• M10: 4,922,668 km (0.1 R)
• M11: 5,312,520 km (0.089 R)
• M12: 6,096,861 km (0.064 R)
• M13: 6,607,439 km (0.109 R)
• M14: 6,977,245 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572

Radius: 12.5

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 1.35 AU - 2.09 AU

Year: 1434 Days

Day: 13.9 Hours

Environment

Temp: -187 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 63,076,705 km

• M1: 155,582 km (0.107 R)
• M2: 644,019 km (0.047 R)
• M3: 1,174,642 km (0.066 R)
• M4: 1,843,046 km (0.104 R)
• M5: 2,452,956 km (0.053 R)
• M6: 3,524,675 km (0.097 R)
• M7: 3,927,991 km (0.111 R)
• M8: 4,732,678 km (0.101 R)
• M9: 6,431,512 km (0.107 R)
• M10: 6,888,832 km (0.108 R)
• M11: 7,815,142 km (0.06 R)
• M12: 10,559,814 km (0.066 R)
• M13: 11,232,407 km (0.069 R)
• M14: 11,897,519 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 855.2

Radius: 10.7

Gravity: 7.47 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 4.09 AU - 5.27 AU

Year: 6437 Days

Day: 14.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 63,076,705 km

• M1: 133,591 km (0.076 R)
• M2: 703,858 km (0.039 R)
• M3: 1,158,037 km (0.085 R)
• M4: 1,561,802 km (0.045 R)
• M5: 2,893,672 km (0.105 R)
• M6: 3,267,666 km (0.047 R)
• M7: 3,650,786 km (0.11 R)
• M8: 4,165,403 km (0.102 R)
• M9: 4,955,130 km (0.113 R)
• M10: 5,777,619 km (0.108 R)
• M11: 6,617,911 km (0.116 R)
• M12: 10,810,391 km (0.083 R)
• M13: 11,874,032 km (0.118 R)
• M14: 13,627,020 km (0.101 R)
• M15: 14,386,229 km (0.115 R)
• M16: 14,746,012 km (0.092 R)
• M17: 15,861,563 km (0.119 R)
• M18: 20,436,416 km (0.087 R)
• M19: 21,353,450 km (0.106 R)
• M20: 24,100,516 km (0.095 R)
• M21: 24,438,458 km (0.081 R)
• M22: 25,558,796 km (0.073 R)
• M23: 26,443,518 km (0.118 R)
• M24: 27,716,446 km (0.077 R)
• M25: 28,180,798 km (0.079 R)
• M26: 30,285,939 km (0.115 R)
• M27: 35,130,666 km (0.079 R)
• M28: 35,893,765 km (0.087 R)
• M29: 36,334,780 km (0.106 R)
• M30: 36,891,134 km (0.038 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 761.5

Radius: 3.2

Gravity: 74.37 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 7.3 AU - 7.44 AU

Year: 12721 Days

Day: 24.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 63,076,705 km

• M1: 240,404 km (0.084 R)
• M2: 396,883 km (0.054 R)
• M3: 685,906 km (0.062 R)
• M4: 907,012 km (0.109 R)
• M5: 1,291,478 km (0.105 R)
• M6: 1,860,698 km (0.099 R)
• M7: 4,704,105 km (0.118 R)
• M8: 6,893,769 km (0.033 R)
• M9: 7,235,002 km (0.119 R)
• M10: 9,522,503 km (0.111 R)
• M11: 10,107,281 km (0.102 R)
• M12: 10,325,694 km (0.11 R)
• M13: 13,393,647 km (0.104 R)
• M14: 14,956,496 km (0.101 R)
• M15: 16,186,938 km (0.057 R)
• M16: 27,262,866 km (0.046 R)
• M17: 29,201,654 km (0.066 R)
• M18: 30,543,846 km (0.066 R)
• M19: 32,515,097 km (0.116 R)
• M20: 35,943,731 km (0.068 R)
• M21: 44,522,570 km (0.102 R)
• M22: 45,700,803 km (0.068 R)
• M23: 46,297,699 km (0.072 R)
• M24: 51,260,907 km (0.117 R)
• M25: 51,421,575 km (0.1 R)
• M26: 54,202,749 km (0.079 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 734.7

Radius: 3.1

Gravity: 76.45 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 6.22 AU - 9.92 AU

Year: 14576 Days

Day: 16.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 63,076,705 km

• M1: 38,746 km (0.042 R)
• M2: 306,526 km (0.093 R)
• M3: 665,112 km (0.077 R)
• M4: 775,964 km (0.107 R)
• M5: 877,691 km (0.075 R)
• M6: 988,543 km (0.089 R)
• M7: 1,146,518 km (0.081 R)
• M8: 3,004,224 km (0.101 R)
• M9: 3,894,182 km (0.071 R)
• M10: 5,898,494 km (0.043 R)
• M11: 7,364,554 km (0.116 R)
• M12: 10,412,461 km (0.111 R)
• M13: 11,408,184 km (0.107 R)
• M14: 12,401,813 km (0.066 R)
• M15: 14,276,723 km (0.086 R)
• M16: 14,630,373 km (0.113 R)
• M17: 19,339,714 km (0.111 R)
• M18: 20,123,307 km (0.1 R)
• M19: 21,292,115 km (0.114 R)
• M20: 21,939,874 km (0.108 R)
• M21: 27,710,762 km (0.1 R)
• M22: 29,838,492 km (0.096 R)
• M23: 31,118,751 km (0.116 R)
• M24: 31,832,333 km (0.105 R)
• M25: 33,168,690 km (0.099 R)
• M26: 33,663,859 km (0.111 R)
• M27: 34,163,815 km (0.064 R)
• M28: 50,580,386 km (0.12 R)
• M29: 53,068,349 km (0.116 R)
• M30: 54,771,520 km (0.032 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 178 - 14,118 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit