🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.7

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.53 AU - 0.65 AU

Year: 293 Days

Day: 25.6 Hours

Environment

Temp: -119 °C

Axial Tilt: 42.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.8

Radius: 8.5

Gravity: 12.77 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.75 AU - 0.87 AU

Year: 471 Days

Day: 14.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 92,855,668 km

• M1: 106,214 km (0.113 R)
• M2: 469,887 km (0.114 R)
• M3: 890,556 km (0.117 R)
• M4: 1,217,876 km (0.088 R)
• M5: 1,566,290 km (0.114 R)
• M6: 2,077,316 km (0.044 R)
• M7: 2,357,662 km (0.093 R)
• M8: 2,826,053 km (0.052 R)
• M9: 3,172,073 km (0.109 R)
• M10: 3,598,128 km (0.117 R)
• M11: 3,880,120 km (0.053 R)
• M12: 4,176,773 km (0.104 R)
• M13: 4,503,943 km (0.103 R)
• M14: 5,176,236 km (0.103 R)
• M15: 6,043,156 km (0.112 R)
• M16: 6,462,628 km (0.117 R)
• M17: 6,759,580 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 781

Radius: 12.8

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.75 AU - 1.01 AU

Year: 533 Days

Day: 12.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 92,855,668 km

• M1: 163,361 km (0.088 R)
• M2: 564,134 km (0.066 R)
• M3: 974,780 km (0.058 R)
• M4: 1,389,764 km (0.095 R)
• M5: 1,803,552 km (0.115 R)
• M6: 2,216,442 km (0.066 R)
• M7: 2,651,024 km (0.031 R)
• M8: 3,226,676 km (0.074 R)
• M9: 3,629,544 km (0.081 R)
• M10: 4,109,005 km (0.103 R)
• M11: 4,981,160 km (0.088 R)
• M12: 5,593,165 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 985.7

Radius: 9

Gravity: 12.17 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.76 AU - 2.66 AU

Year: 2121 Days

Day: 13.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 92,855,668 km

• M1: 111,899 km (0.094 R)
• M2: 501,302 km (0.074 R)
• M3: 1,421,180 km (0.104 R)
• M4: 1,708,856 km (0.113 R)
• M5: 2,111,424 km (0.068 R)
• M6: 2,695,454 km (0.114 R)
• M7: 3,903,906 km (0.081 R)
• M8: 4,328,614 km (0.065 R)
• M9: 4,828,870 km (0.089 R)
• M10: 6,128,875 km (0.109 R)
• M11: 7,648,341 km (0.098 R)
• M12: 11,494,502 km (0.082 R)
• M13: 15,061,663 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 662.4

Radius: 11.9

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 2.04 AU - 2.62 AU

Year: 2296 Days

Day: 5.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 92,855,668 km

• M1: 157,078 km (0.076 R)
• M2: 591,360 km (0.081 R)
• M3: 1,040,902 km (0.1 R)
• M4: 1,649,466 km (0.077 R)
• M5: 2,097,362 km (0.117 R)
• M6: 2,583,854 km (0.094 R)
• M7: 3,048,805 km (0.052 R)
• M8: 3,446,885 km (0.119 R)
• M9: 4,513,667 km (0.104 R)
• M10: 5,641,784 km (0.078 R)
• M11: 6,456,943 km (0.08 R)
• M12: 8,480,853 km (0.037 R)
• M13: 9,867,027 km (0.109 R)
• M14: 10,595,568 km (0.11 R)
• M15: 15,500,883 km (0.094 R)
• M16: 16,285,523 km (0.047 R)
• M17: 16,942,408 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836.4

Radius: 15

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 2.32 AU - 2.52 AU

Year: 2431 Days

Day: 7.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 92,855,668 km

• M1: 187,147 km (0.05 R)
• M2: 683,812 km (0.079 R)
• M3: 1,228,947 km (0.063 R)
• M4: 1,928,466 km (0.119 R)
• M5: 2,855,225 km (0.043 R)
• M6: 5,224,107 km (0.116 R)
• M7: 6,238,979 km (0.063 R)
• M8: 7,876,477 km (0.087 R)
• M9: 8,761,648 km (0.102 R)
• M10: 9,495,276 km (0.095 R)
• M11: 10,081,550 km (0.06 R)
• M12: 11,205,778 km (0.093 R)
• M13: 13,474,729 km (0.055 R)
• M14: 15,181,342 km (0.089 R)
• M15: 18,395,901 km (0.11 R)
• M16: 19,894,871 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 336

Radius: 7

Gravity: 6.86 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 8.38 AU - 9.4 AU

Year: 17115 Days

Day: 24.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 92,855,668 km

• M1: 87,216 km (0.116 R)
• M2: 457,470 km (0.042 R)
• M3: 940,971 km (0.104 R)
• M4: 1,856,510 km (0.043 R)
• M5: 2,627,537 km (0.063 R)
• M6: 3,192,718 km (0.09 R)
• M7: 4,350,605 km (0.099 R)
• M8: 4,593,552 km (0.076 R)
• M9: 5,140,183 km (0.118 R)
• M10: 6,440,188 km (0.025 R)
• M11: 12,104,562 km (0.055 R)
• M12: 12,956,821 km (0.115 R)
• M13: 14,644,734 km (0.089 R)
• M14: 17,066,424 km (0.064 R)
• M15: 20,665,300 km (0.095 R)
• M16: 24,932,580 km (0.074 R)
• M17: 25,713,032 km (0.1 R)
• M18: 26,109,167 km (0.108 R)
• M19: 40,113,023 km (0.097 R)
• M20: 42,964,508 km (0.027 R)
• M21: 46,678,575 km (0.087 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 836.7

Radius: 4.6

Gravity: 39.54 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 9.33 AU - 13.19 AU

Year: 24396 Days

Day: 17 Hours

Environment

Temp: -238 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 92,855,668 km

• M1: 57,296 km (0.076 R)
• M2: 238,459 km (0.068 R)
• M3: 580,589 km (0.117 R)
• M4: 904,469 km (0.111 R)
• M5: 1,114,205 km (0.027 R)
• M6: 1,455,587 km (0.06 R)
• M7: 1,924,577 km (0.065 R)
• M8: 2,415,407 km (0.089 R)
• M9: 2,795,087 km (0.098 R)
• M10: 3,546,068 km (0.056 R)
• M11: 5,647,020 km (0.092 R)
• M12: 7,080,766 km (0.087 R)
• M13: 8,179,712 km (0.098 R)
• M14: 10,255,981 km (0.098 R)
• M15: 10,578,664 km (0.111 R)
• M16: 11,312,441 km (0.071 R)
• M17: 14,507,852 km (0.1 R)
• M18: 16,180,057 km (0.085 R)
• M19: 20,201,996 km (0.085 R)
• M20: 21,328,617 km (0.054 R)
• M21: 22,066,883 km (0.115 R)
• M22: 26,736,431 km (0.111 R)
• M23: 27,718,391 km (0.12 R)
• M24: 37,357,281 km (0.094 R)
• M25: 38,120,529 km (0.109 R)
• M26: 38,428,851 km (0.101 R)
• M27: 40,313,036 km (0.04 R)
• M28: 41,929,441 km (0.082 R)
• M29: 47,214,584 km (0.034 R)
• M30: 60,535,227 km (0.098 R)
• M31: 64,817,915 km (0.117 R)
• M32: 69,757,188 km (0.075 R)
• M33: 72,554,219 km (0.078 R)
• M34: 76,398,436 km (0.115 R)
• M35: 77,134,158 km (0.084 R)
• M36: 79,369,300 km (0.111 R)
• M37: 80,376,393 km (0.047 R)
• M38: 83,448,834 km (0.042 R)
• M39: 91,195,311 km (0.086 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 505 - 14,648 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit