🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.68

Radius: 0.86

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.56 AU - 0.6 AU

Year: 158 Days

Day: 18 Hours

Environment

Temp: 221 °C

Axial Tilt: 45.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.83

Radius: 0.93

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.61 AU - 0.61 AU

Year: 171 Days

Day: 47.2 Hours

Environment

Temp: 191 °C

Axial Tilt: 0.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 106,591,507 km

• M1: 136,433 km (0.077 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.57 AU - 0.95 AU

Year: 237 Days

Day: 21.2 Hours

Environment

Temp: 175 °C

Axial Tilt: 17.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.94

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 1.53 AU - 1.89 AU

Year: 801 Days

Day: 33.9 Hours

Environment

Temp: -33 °C

Axial Tilt: 18.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.32

Radius: 1.12

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 2.2 AU - 3.08 AU

Year: 1536 Days

Day: 16.8 Hours

Environment

Temp: -96 °C

Axial Tilt: 49.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1

Radius: 1

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 2 AU - 3.3 AU

Year: 1545 Days

Day: 40.2 Hours

Environment

Temp: -81 °C

Axial Tilt: 19.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.54

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 2.47 AU - 3.53 AU

Year: 1861 Days

Day: 46.2 Hours

Environment

Temp: -90 °C

Axial Tilt: 8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 106,591,507 km

• M1: 134,488 km (0.063 R)
• M2: 1,354,310 km (0.109 R)

Asteroid Belt

Center: 5.18 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 7.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16.4

Radius: 13.2

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 5.54 AU - 9.18 AU

Year: 7151 Days

Day: 9.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 106,591,507 km

• M1: 251,175 km (0.073 R)
• M2: 348,713 km (0.03 R)
• M3: 686,056 km (0.059 R)
• M4: 790,176 km (0.112 R)
• M5: 1,144,873 km (0.078 R)
• M6: 1,256,772 km (0.032 R)
• M7: 1,492,089 km (0.113 R)
• M8: 1,590,375 km (0.115 R)
• M9: 1,699,581 km (0.115 R)
• M10: 1,863,840 km (0.088 R)
• M11: 2,189,963 km (0.06 R)
• M12: 2,321,909 km (0.066 R)
• M13: 2,408,077 km (0.029 R)
• M14: 2,794,638 km (0.054 R)
• M15: 3,010,956 km (0.099 R)
• M16: 3,265,273 km (0.1 R)
• M17: 3,471,568 km (0.091 R)
• M18: 4,316,198 km (0.093 R)
• M19: 4,482,999 km (0.06 R)
• M20: 4,688,547 km (0.087 R)
• M21: 5,046,385 km (0.105 R)
• M22: 5,503,257 km (0.11 R)
• M23: 6,013,086 km (0.105 R)
• M24: 6,551,938 km (0.111 R)
• M25: 6,661,593 km (0.084 R)
• M26: 6,758,084 km (0.115 R)
• M27: 7,289,904 km (0.063 R)
• M28: 8,965,700 km (0.105 R)
• M29: 9,271,627 km (0.1 R)
• M30: 10,019,916 km (0.098 R)
• M31: 10,241,919 km (0.094 R)
• M32: 10,385,383 km (0.074 R)
• M33: 10,803,958 km (0.078 R)
• M34: 10,998,884 km (0.087 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 854.8

Radius: 7.2

Gravity: 16.49 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 16.37 AU - 21.65 AU

Year: 29686 Days

Day: 17.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 106,591,507 km

• M1: 151,842 km (0.113 R)
• M2: 229,483 km (0.074 R)
• M3: 285,134 km (0.061 R)
• M4: 615,446 km (0.106 R)
• M5: 786,885 km (0.095 R)
• M6: 1,978,133 km (0.117 R)
• M7: 2,233,496 km (0.106 R)
• M8: 2,499,332 km (0.106 R)
• M9: 3,356,827 km (0.089 R)
• M10: 4,081,479 km (0.028 R)
• M11: 6,092,074 km (0.12 R)
• M12: 6,215,044 km (0.028 R)
• M13: 6,841,859 km (0.107 R)
• M14: 7,819,630 km (0.074 R)
• M15: 8,632,844 km (0.116 R)
• M16: 10,265,555 km (0.119 R)
• M17: 11,532,051 km (0.072 R)
• M18: 11,608,047 km (0.084 R)
• M19: 13,242,852 km (0.108 R)
• M20: 14,536,126 km (0.047 R)
• M21: 15,281,123 km (0.069 R)
• M22: 15,448,374 km (0.061 R)
• M23: 15,953,715 km (0.09 R)
• M24: 16,808,069 km (0.12 R)
• M25: 17,240,706 km (0.111 R)
• M26: 18,117,200 km (0.107 R)
• M27: 18,205,612 km (0.057 R)
• M28: 18,471,896 km (0.064 R)
• M29: 19,188,021 km (0.079 R)
• M30: 20,095,931 km (0.048 R)
• M31: 20,463,044 km (0.062 R)
• M32: 20,555,047 km (0.084 R)
• M33: 20,832,251 km (0.09 R)
• M34: 21,671,346 km (0.096 R)
• M35: 24,059,078 km (0.108 R)
• M36: 25,630,603 km (0.091 R)
• M37: 27,641,199 km (0.097 R)
• M38: 28,459,499 km (0.106 R)
• M39: 30,645,124 km (0.096 R)
• M40: 30,961,823 km (0.099 R)
• M41: 33,316,792 km (0.117 R)
• M42: 33,533,709 km (0.041 R)
• M43: 36,731,663 km (0.048 R)
• M44: 37,743,692 km (0.083 R)
• M45: 37,856,639 km (0.105 R)
• M46: 39,680,237 km (0.091 R)
• M47: 45,680,607 km (0.091 R)
• M48: 47,498,521 km (0.113 R)
• M49: 48,723,578 km (0.117 R)
• M50: 50,580,386 km (0.109 R)
• M51: 52,460,383 km (0.113 R)
• M52: 52,712,755 km (0.103 R)
• M53: 52,965,575 km (0.094 R)
• M54: 54,235,661 km (0.03 R)
• M55: 55,387,116 km (0.089 R)
• M56: 55,772,779 km (0.086 R)
• M57: 56,159,340 km (0.032 R)
• M58: 58,366,507 km (0.084 R)
• M59: 59,283,542 km (0.056 R)
• M60: 61,530,502 km (0.092 R)
• M61: 62,731,174 km (0.116 R)
• M62: 63,536,011 km (0.045 R)
• M63: 64,614,462 km (0.097 R)
• M64: 64,884,935 km (0.118 R)
• M65: 65,155,857 km (0.112 R)
• M66: 65,970,866 km (0.092 R)
• M67: 67,199,812 km (0.079 R)
• M68: 67,473,876 km (0.111 R)
• M69: 70,235,303 km (0.075 R)
• M70: 73,174,302 km (0.105 R)
• M71: 73,738,735 km (0.058 R)
• M72: 75,440,411 km (0.094 R)
• M73: 75,582,828 km (0.114 R)
• M74: 78,017,234 km (0.111 R)
• M75: 79,751,074 km (0.12 R)
• M76: 80,477,222 km (0.114 R)
• M77: 80,622,631 km (0.108 R)
• M78: 82,962,491 km (0.079 R)
• M79: 83,551,009 km (0.043 R)
• M80: 84,436,329 km (0.099 R)
• M81: 87,260,139 km (0.057 R)
• M82: 87,858,530 km (0.103 R)
• M83: 88,008,278 km (0.072 R)
• M84: 88,308,221 km (0.115 R)
• M85: 90,719,590 km (0.061 R)
• M86: 91,781,286 km (0.074 R)
• M87: 91,933,427 km (0.112 R)
• M88: 92,237,709 km (0.11 R)
• M89: 98,082,348 km (0.107 R)
• M90: 98,237,780 km (0.085 R)
• M91: 101,677,783 km (0.05 R)
• M92: 104,839,085 km (0.064 R)

Kuiper Belt

Range: 30.6 - 50.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 306 - 20,117 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit