🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247.8

Radius: 12.3

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.6 AU - 0.74 AU

Year: 379 Days

Day: 8.6 Hours

Environment

Temp: -149 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 30,600,281 km

• M1: 153,039 km (0.119 R)
• M2: 544,237 km (0.085 R)
• M3: 935,735 km (0.057 R)
• M4: 1,900,940 km (0.076 R)
• M5: 2,336,719 km (0.11 R)
• M6: 2,985,525 km (0.06 R)
• M7: 3,434,618 km (0.07 R)
• M8: 3,850,500 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 897.9

Radius: 8.6

Gravity: 12.14 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.05 AU - 1.21 AU

Year: 829 Days

Day: 10.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 30,600,281 km

• M1: 106,962 km (0.033 R)
• M2: 403,765 km (0.038 R)
• M3: 752,776 km (0.09 R)
• M4: 1,111,961 km (0.111 R)
• M5: 1,601,146 km (0.057 R)
• M6: 2,969,817 km (0.11 R)
• M7: 3,759,394 km (0.063 R)
• M8: 4,187,244 km (0.108 R)
• M9: 4,455,773 km (0.119 R)
• M10: 5,448,803 km (0.034 R)
• M11: 5,749,196 km (0.089 R)
• M12: 6,649,775 km (0.072 R)
• M13: 7,016,589 km (0.06 R)
• M14: 7,592,092 km (0.084 R)
• M15: 8,069,758 km (0.12 R)
• M16: 8,755,664 km (0.109 R)
• M17: 9,140,879 km (0.115 R)
• M18: 9,768,891 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.3

Radius: 12.8

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.08 AU - 1.34 AU

Year: 919 Days

Day: 5 Hours

Environment

Temp: -192 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 30,600,281 km

• M1: 161,267 km (0.058 R)
• M2: 560,244 km (0.098 R)
• M3: 1,281,755 km (0.083 R)
• M4: 2,833,832 km (0.115 R)
• M5: 3,862,617 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 676.3

Radius: 14.1

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 1.04 AU - 1.42 AU

Year: 942 Days

Day: 14.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 30,600,281 km

• M1: 175,329 km (0.108 R)
• M2: 742,155 km (0.057 R)
• M3: 1,330,972 km (0.092 R)
• M4: 1,888,524 km (0.119 R)
• M5: 2,356,166 km (0.04 R)
• M6: 3,212,913 km (0.108 R)
• M7: 3,934,574 km (0.055 R)
• M8: 4,401,319 km (0.032 R)
• M9: 5,237,122 km (0.081 R)
• M10: 6,564,953 km (0.11 R)
• M11: 7,038,879 km (0.101 R)
• M12: 8,364,017 km (0.078 R)
• M13: 9,086,126 km (0.068 R)
• M14: 9,676,289 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736.5

Radius: 14.5

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 1.59 AU - 1.81 AU

Year: 1530 Days

Day: 9.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 30,600,281 km

• M1: 180,265 km (0.084 R)
• M2: 865,723 km (0.07 R)
• M3: 1,361,490 km (0.091 R)
• M4: 2,041,413 km (0.111 R)
• M5: 2,681,392 km (0.073 R)
• M6: 3,266,320 km (0.081 R)
• M7: 3,747,726 km (0.118 R)
• M8: 4,388,304 km (0.059 R)
• M9: 5,399,286 km (0.041 R)
• M10: 7,549,606 km (0.115 R)
• M11: 9,890,214 km (0.106 R)
• M12: 10,458,537 km (0.084 R)
• M13: 11,514,997 km (0.066 R)
• M14: 13,112,104 km (0.099 R)
• M15: 13,840,047 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 330.9

Radius: 13.8

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 2.37 AU - 3.07 AU

Year: 3096 Days

Day: 5.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 30,600,281 km

• M1: 171,589 km (0.041 R)
• M2: 631,752 km (0.083 R)
• M3: 1,092,064 km (0.099 R)
• M4: 1,673,402 km (0.112 R)
• M5: 2,103,795 km (0.054 R)
• M6: 2,554,084 km (0.056 R)
• M7: 3,196,757 km (0.106 R)
• M8: 3,653,928 km (0.075 R)
• M9: 5,868,126 km (0.118 R)
• M10: 7,332,540 km (0.055 R)
• M11: 8,073,797 km (0.062 R)
• M12: 8,962,857 km (0.077 R)
• M13: 11,393,972 km (0.104 R)
• M14: 12,512,815 km (0.055 R)
• M15: 17,213,928 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501.3

Radius: 13.3

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 3.59 AU - 4.83 AU

Year: 5963 Days

Day: 14.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 30,600,281 km

• M1: 165,455 km (0.091 R)
• M2: 640,877 km (0.034 R)
• M3: 1,190,949 km (0.087 R)
• M4: 1,744,760 km (0.087 R)
• M5: 3,447,782 km (0.106 R)
• M6: 4,298,396 km (0.073 R)
• M7: 5,831,475 km (0.038 R)
• M8: 6,479,832 km (0.105 R)
• M9: 7,279,432 km (0.071 R)
• M10: 8,143,659 km (0.048 R)
• M11: 9,777,418 km (0.086 R)
• M12: 11,336,826 km (0.095 R)
• M13: 12,851,654 km (0.096 R)
• M14: 14,332,374 km (0.107 R)
• M15: 15,457,649 km (0.102 R)
• M16: 17,131,051 km (0.097 R)
• M17: 22,278,564 km (0.058 R)
• M18: 24,097,225 km (0.092 R)
• M19: 24,724,938 km (0.058 R)
• M20: 26,424,669 km (0.111 R)
• M21: 30,418,034 km (0.079 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 412 - 14,491 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit