🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.1

Radius: 1.35

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.76 AU - 0.86 AU

Year: 310 Days

Day: 42.7 Hours

Environment

Temp: -22 °C

Axial Tilt: 13.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.97

Radius: 0.99

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.76 AU - 1.18 AU

Year: 406 Days

Day: 37.6 Hours

Environment

Temp: -56 °C

Axial Tilt: 35 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.5

Radius: 0.76

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.34 AU - 1.6 AU

Year: 757 Days

Day: 14.7 Hours

Environment

Temp: -87 °C

Axial Tilt: 51.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.81

Radius: 1.51

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.86 AU - 2.68 AU

Year: 1452 Days

Day: 36.5 Hours

Environment

Temp: -127 °C

Axial Tilt: 29.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 243.1

Radius: 14.3

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 2.63 AU - 3.81 AU

Year: 2453 Days

Day: 5.2 Hours

Environment

Temp: -141 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 70,096,633 km

• M1: 177,872 km (0.107 R)
• M2: 944,262 km (0.062 R)
• M3: 1,497,175 km (0.071 R)
• M4: 2,313,681 km (0.1 R)
• M5: 2,955,755 km (0.11 R)
• M6: 3,848,256 km (0.056 R)
• M7: 4,376,935 km (0.084 R)
• M8: 5,219,769 km (0.086 R)
• M9: 6,238,680 km (0.105 R)
• M10: 6,896,163 km (0.077 R)
• M11: 7,492,460 km (0.081 R)
• M12: 8,729,485 km (0.1 R)
• M13: 11,041,819 km (0.09 R)
• M14: 12,565,772 km (0.087 R)
• M15: 13,025,935 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.5

Radius: 11

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 3.11 AU - 3.35 AU

Year: 2465 Days

Day: 7.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,096,633 km

• M1: 138,378 km (0.085 R)
• M2: 495,468 km (0.108 R)
• M3: 1,172,698 km (0.111 R)
• M4: 1,707,660 km (0.11 R)
• M5: 2,199,388 km (0.081 R)
• M6: 2,656,709 km (0.082 R)
• M7: 3,305,365 km (0.029 R)
• M8: 4,019,246 km (0.113 R)
• M9: 4,563,932 km (0.097 R)
• M10: 5,518,965 km (0.111 R)
• M11: 6,421,040 km (0.092 R)
• M12: 7,705,338 km (0.104 R)
• M13: 8,672,937 km (0.086 R)
• M14: 9,186,207 km (0.115 R)
• M15: 10,415,602 km (0.032 R)
• M16: 13,073,508 km (0.11 R)
• M17: 13,749,092 km (0.104 R)
• M18: 15,680,250 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.9

Radius: 9.6

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 7.49 AU - 7.91 AU

Year: 9072 Days

Day: 14.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 70,096,633 km

• M1: 119,379 km (0.072 R)
• M2: 438,771 km (0.063 R)
• M3: 834,756 km (0.12 R)
• M4: 1,532,780 km (0.076 R)
• M5: 1,834,668 km (0.042 R)
• M6: 2,210,009 km (0.097 R)
• M7: 3,138,414 km (0.112 R)
• M8: 4,468,788 km (0.083 R)
• M9: 4,803,139 km (0.102 R)
• M10: 6,381,247 km (0.089 R)
• M11: 6,952,262 km (0.079 R)
• M12: 7,518,191 km (0.08 R)
• M13: 9,222,858 km (0.099 R)
• M14: 11,947,784 km (0.065 R)
• M15: 12,540,042 km (0.106 R)
• M16: 14,374,560 km (0.038 R)
• M17: 16,843,972 km (0.069 R)
• M18: 17,247,438 km (0.101 R)
• M19: 18,284,600 km (0.085 R)
• M20: 19,583,408 km (0.093 R)
• M21: 20,029,659 km (0.092 R)
• M22: 20,406,795 km (0.064 R)
• M23: 21,645,316 km (0.097 R)
• M24: 23,097,911 km (0.111 R)
• M25: 26,285,842 km (0.083 R)
• M26: 28,125,746 km (0.057 R)
• M27: 29,270,020 km (0.052 R)
• M28: 30,345,928 km (0.093 R)
• M29: 36,124,146 km (0.099 R)
• M30: 39,329,579 km (0.072 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.4

Radius: 10.6

Gravity: 8.82 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 8.34 AU - 9.6 AU

Year: 11407 Days

Day: 6.9 Hours

Environment

Temp: -196 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 70,096,633 km

• M1: 133,890 km (0.109 R)
• M2: 786,735 km (0.104 R)
• M3: 1,157,888 km (0.106 R)
• M4: 1,647,970 km (0.118 R)
• M5: 2,031,090 km (0.108 R)
• M6: 2,729,712 km (0.06 R)
• M7: 3,372,534 km (0.113 R)
• M8: 3,799,337 km (0.115 R)
• M9: 4,383,666 km (0.107 R)
• M10: 5,026,788 km (0.05 R)
• M11: 5,805,893 km (0.112 R)
• M12: 6,461,431 km (0.115 R)
• M13: 6,828,096 km (0.077 R)
• M14: 7,874,383 km (0.091 R)
• M15: 8,293,257 km (0.078 R)
• M16: 9,535,368 km (0.053 R)
• M17: 10,671,265 km (0.075 R)
• M18: 11,359,714 km (0.107 R)
• M19: 13,669,655 km (0.103 R)
• M20: 15,325,554 km (0.109 R)
• M21: 15,759,687 km (0.101 R)
• M22: 16,501,393 km (0.118 R)
• M23: 17,034,261 km (0.041 R)
• M24: 19,198,044 km (0.084 R)
• M25: 20,044,170 km (0.1 R)
• M26: 20,738,603 km (0.083 R)
• M27: 23,012,940 km (0.092 R)
• M28: 25,549,372 km (0.117 R)
• M29: 26,780,712 km (0.091 R)
• M30: 29,472,426 km (0.113 R)
• M31: 37,960,011 km (0.079 R)
• M32: 38,755,423 km (0.073 R)
• M33: 39,969,260 km (0.108 R)
• M34: 41,767,277 km (0.069 R)
• M35: 57,611,486 km (0.108 R)
• M36: 58,661,813 km (0.083 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 917.6

Radius: 3.5

Gravity: 74.91 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 10.14 AU - 11.66 AU

Year: 15280 Days

Day: 20.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 70,096,633 km

• M1: 52,210 km (0.119 R)
• M2: 248,332 km (0.114 R)
• M3: 852,109 km (0.085 R)
• M4: 1,151,305 km (0.093 R)
• M5: 1,468,901 km (0.116 R)
• M6: 1,860,250 km (0.118 R)
• M7: 2,050,688 km (0.056 R)
• M8: 2,171,114 km (0.091 R)
• M9: 3,534,698 km (0.118 R)
• M10: 6,862,204 km (0.101 R)
• M11: 10,296,672 km (0.105 R)
• M12: 10,591,380 km (0.104 R)
• M13: 15,175,058 km (0.116 R)
• M14: 20,737,855 km (0.03 R)
• M15: 22,265,399 km (0.055 R)
• M16: 24,382,059 km (0.053 R)
• M17: 28,086,851 km (0.079 R)
• M18: 29,834,303 km (0.059 R)
• M19: 34,713,737 km (0.039 R)
• M20: 36,587,450 km (0.091 R)
• M21: 37,966,294 km (0.107 R)
• M22: 40,098,961 km (0.085 R)
• M23: 43,369,320 km (0.072 R)
• M24: 45,856,235 km (0.076 R)
• M25: 59,349,814 km (0.065 R)
• M26: 63,584,481 km (0.037 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 444 - 18,093 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit