🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.77

Radius: 0.9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.46 AU - 0.68 AU

Year: 278 Days

Day: 41.4 Hours

Environment

Temp: -135 °C

Axial Tilt: 36.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480.4

Radius: 12.6

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.9 AU - 1.22 AU

Year: 705 Days

Day: 8.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,978,731 km

• M1: 156,629 km (0.092 R)
• M2: 584,928 km (0.078 R)
• M3: 1,245,253 km (0.112 R)
• M4: 1,834,519 km (0.105 R)
• M5: 2,342,852 km (0.073 R)
• M6: 2,944,834 km (0.097 R)
• M7: 3,648,243 km (0.094 R)
• M8: 4,678,225 km (0.073 R)
• M9: 5,390,909 km (0.04 R)
• M10: 6,604,447 km (0.056 R)
• M11: 7,033,344 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 700.2

Radius: 14.3

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.54 AU - 1.58 AU

Year: 1258 Days

Day: 6.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,978,731 km

• M1: 177,872 km (0.047 R)
• M2: 694,433 km (0.072 R)
• M3: 1,195,437 km (0.092 R)
• M4: 1,838,109 km (0.067 R)
• M5: 2,448,768 km (0.113 R)
• M6: 2,929,426 km (0.111 R)
• M7: 3,519,290 km (0.11 R)
• M8: 5,956,239 km (0.088 R)
• M9: 6,526,058 km (0.11 R)
• M10: 7,828,756 km (0.108 R)
• M11: 8,684,306 km (0.118 R)
• M12: 9,149,705 km (0.053 R)
• M13: 10,451,805 km (0.039 R)
• M14: 11,698,105 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390.2

Radius: 8.2

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.51 AU - 2.79 AU

Year: 2785 Days

Day: 10.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,978,731 km

• M1: 102,026 km (0.111 R)
• M2: 437,275 km (0.094 R)
• M3: 830,418 km (0.113 R)
• M4: 1,386,024 km (0.086 R)
• M5: 1,709,754 km (0.115 R)
• M6: 2,047,546 km (0.078 R)
• M7: 2,784,016 km (0.113 R)
• M8: 3,092,038 km (0.114 R)
• M9: 3,632,386 km (0.025 R)
• M10: 4,813,910 km (0.098 R)
• M11: 5,708,206 km (0.099 R)
• M12: 7,467,327 km (0.107 R)
• M13: 8,157,422 km (0.106 R)
• M14: 8,533,960 km (0.116 R)
• M15: 9,768,442 km (0.109 R)
• M16: 10,741,726 km (0.041 R)
• M17: 11,156,112 km (0.099 R)
• M18: 11,581,269 km (0.109 R)
• M19: 12,300,236 km (0.089 R)
• M20: 14,407,921 km (0.106 R)
• M21: 14,958,740 km (0.114 R)
• M22: 15,859,319 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.9

Radius: 8.7

Gravity: 7.89 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 3.71 AU - 4.83 AU

Year: 5697 Days

Day: 12.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,978,731 km

• M1: 108,159 km (0.064 R)
• M2: 446,699 km (0.087 R)
• M3: 774,618 km (0.04 R)
• M4: 1,155,045 km (0.116 R)
• M5: 1,546,842 km (0.089 R)
• M6: 2,191,160 km (0.093 R)
• M7: 2,464,625 km (0.065 R)
• M8: 3,220,244 km (0.093 R)
• M9: 3,911,236 km (0.103 R)
• M10: 4,194,575 km (0.114 R)
• M11: 5,410,805 km (0.089 R)
• M12: 6,914,862 km (0.087 R)
• M13: 9,496,622 km (0.11 R)
• M14: 11,330,692 km (0.067 R)
• M15: 12,507,579 km (0.104 R)
• M16: 14,816,921 km (0.049 R)
• M17: 16,465,041 km (0.055 R)
• M18: 17,207,495 km (0.092 R)
• M19: 17,714,781 km (0.106 R)
• M20: 20,755,807 km (0.1 R)
• M21: 24,207,179 km (0.064 R)
• M22: 25,820,443 km (0.067 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 587.2

Radius: 7.5

Gravity: 10.44 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 5.04 AU - 8.22 AU

Year: 11023 Days

Day: 18.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 55,978,731 km

• M1: 93,349 km (0.106 R)
• M2: 529,726 km (0.086 R)
• M3: 975,378 km (0.113 R)
• M4: 1,215,931 km (0.104 R)
• M5: 2,119,503 km (0.049 R)
• M6: 2,432,013 km (0.091 R)
• M7: 3,842,272 km (0.082 R)
• M8: 4,424,507 km (0.116 R)
• M9: 4,875,245 km (0.116 R)
• M10: 5,389,562 km (0.049 R)
• M11: 7,030,651 km (0.071 R)
• M12: 11,875,827 km (0.091 R)
• M13: 13,045,533 km (0.058 R)
• M14: 14,226,010 km (0.115 R)
• M15: 15,073,781 km (0.101 R)
• M16: 15,341,262 km (0.077 R)
• M17: 17,449,844 km (0.11 R)
• M18: 20,145,148 km (0.096 R)
• M19: 20,798,143 km (0.076 R)
• M20: 21,046,625 km (0.102 R)
• M21: 24,093,635 km (0.092 R)
• M22: 25,865,023 km (0.032 R)
• M23: 27,125,834 km (0.078 R)
• M24: 30,085,329 km (0.116 R)
• M25: 30,938,186 km (0.091 R)
• M26: 34,743,058 km (0.061 R)
• M27: 35,210,252 km (0.114 R)
• M28: 35,918,898 km (0.111 R)
• M29: 36,276,736 km (0.059 R)
• M30: 40,758,538 km (0.105 R)
• M31: 41,408,691 km (0.096 R)
• M32: 43,401,185 km (0.08 R)
• M33: 47,719,626 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 394.3

Radius: 6.8

Gravity: 8.53 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 5.74 AU - 8.92 AU

Year: 12814 Days

Day: 23.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,978,731 km

• M1: 192,532 km (0.088 R)
• M2: 507,137 km (0.034 R)
• M3: 792,121 km (0.109 R)
• M4: 1,483,412 km (0.114 R)
• M5: 1,726,359 km (0.105 R)
• M6: 2,063,403 km (0.082 R)
• M7: 3,513,904 km (0.092 R)
• M8: 5,053,416 km (0.075 R)
• M9: 7,602,115 km (0.109 R)
• M10: 8,734,571 km (0.092 R)
• M11: 8,964,652 km (0.052 R)
• M12: 9,484,954 km (0.097 R)
• M13: 9,777,118 km (0.105 R)
• M14: 17,610,213 km (0.05 R)
• M15: 20,534,253 km (0.06 R)
• M16: 21,520,850 km (0.105 R)
• M17: 30,579,750 km (0.074 R)
• M18: 34,200,467 km (0.104 R)
• M19: 35,701,981 km (0.114 R)
• M20: 46,059,988 km (0.057 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 312.1

Radius: 4.2

Gravity: 17.69 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 8.33 AU - 10.53 AU

Year: 18697 Days

Day: 19.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 55,978,731 km

• M1: 264,489 km (0.059 R)
• M2: 1,023,848 km (0.042 R)
• M3: 1,718,281 km (0.075 R)
• M4: 1,867,729 km (0.057 R)
• M5: 2,794,189 km (0.119 R)
• M6: 4,783,841 km (0.104 R)
• M7: 5,148,560 km (0.059 R)
• M8: 6,237,184 km (0.116 R)
• M9: 7,514,600 km (0.037 R)
• M10: 7,961,449 km (0.094 R)
• M11: 8,378,378 km (0.099 R)
• M12: 9,821,250 km (0.109 R)
• M13: 9,979,375 km (0.106 R)
• M14: 10,573,877 km (0.098 R)
• M15: 14,576,069 km (0.038 R)
• M16: 16,204,142 km (0.111 R)
• M17: 20,753,264 km (0.102 R)
• M18: 30,663,225 km (0.088 R)
• M19: 34,885,326 km (0.094 R)
• M20: 44,892,077 km (0.069 R)
• M21: 47,850,973 km (0.075 R)
• M22: 49,223,833 km (0.098 R)
• M23: 50,937,177 km (0.025 R)
• M24: 54,978,115 km (0.04 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 455 - 17,138 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit