🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 362.7

Radius: 8

Gravity: 5.67 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.76 AU - 1.22 AU

Year: 646 Days

Day: 8.3 Hours

Environment

Temp: -166 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,878,126 km

• M1: 99,931 km (0.099 R)
• M2: 351,854 km (0.068 R)
• M3: 729,439 km (0.091 R)
• M4: 1,019,509 km (0.105 R)
• M5: 1,556,865 km (0.073 R)
• M6: 1,882,240 km (0.039 R)
• M7: 2,364,544 km (0.047 R)
• M8: 2,754,546 km (0.088 R)
• M9: 3,625,804 km (0.068 R)
• M10: 4,132,043 km (0.119 R)
• M11: 4,760,803 km (0.115 R)
• M12: 5,794,973 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.8

Radius: 8.9

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.01 AU - 1.51 AU

Year: 928 Days

Day: 5.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,878,126 km

• M1: 110,702 km (0.109 R)
• M2: 473,627 km (0.114 R)
• M3: 909,555 km (0.115 R)
• M4: 1,231,340 km (0.056 R)
• M5: 1,580,651 km (0.041 R)
• M6: 1,915,302 km (0.071 R)
• M7: 2,243,519 km (0.08 R)
• M8: 3,366,251 km (0.064 R)
• M9: 3,657,219 km (0.111 R)
• M10: 4,662,666 km (0.113 R)
• M11: 5,056,408 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926.6

Radius: 11

Gravity: 7.66 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.5 AU - 1.58 AU

Year: 1254 Days

Day: 10.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 25,878,126 km

• M1: 136,882 km (0.06 R)
• M2: 517,010 km (0.084 R)
• M3: 1,203,664 km (0.07 R)
• M4: 1,789,490 km (0.096 R)
• M5: 2,407,927 km (0.041 R)
• M6: 2,961,290 km (0.05 R)
• M7: 3,454,364 km (0.12 R)
• M8: 4,529,674 km (0.062 R)
• M9: 4,960,815 km (0.045 R)
• M10: 5,419,183 km (0.104 R)
• M11: 6,640,949 km (0.067 R)
• M12: 7,146,889 km (0.058 R)
• M13: 9,717,429 km (0.11 R)
• M14: 10,707,767 km (0.074 R)
• M15: 11,946,736 km (0.098 R)
• M16: 13,160,873 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.1

Radius: 11.6

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.37 AU - 1.75 AU

Year: 1278 Days

Day: 13.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 25,878,126 km

• M1: 144,512 km (0.109 R)
• M2: 506,838 km (0.119 R)
• M3: 922,121 km (0.092 R)
• M4: 1,471,893 km (0.075 R)
• M5: 1,858,155 km (0.11 R)
• M6: 2,312,783 km (0.119 R)
• M7: 2,698,895 km (0.084 R)
• M8: 3,242,683 km (0.119 R)
• M9: 4,143,412 km (0.076 R)
• M10: 5,044,739 km (0.082 R)
• M11: 5,873,661 km (0.108 R)
• M12: 6,767,209 km (0.072 R)
• M13: 7,670,332 km (0.088 R)
• M14: 8,623,719 km (0.116 R)
• M15: 9,262,203 km (0.059 R)
• M16: 10,152,011 km (0.06 R)
• M17: 10,536,477 km (0.1 R)
• M18: 11,402,948 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.1

Radius: 13.8

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.58 AU - 2 AU

Year: 1571 Days

Day: 12.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 25,878,126 km

• M1: 183,407 km (0.082 R)
• M2: 695,780 km (0.101 R)
• M3: 1,197,082 km (0.1 R)
• M4: 1,770,042 km (0.118 R)
• M5: 2,288,847 km (0.104 R)
• M6: 2,763,671 km (0.11 R)
• M7: 3,334,237 km (0.067 R)
• M8: 4,491,526 km (0.096 R)
• M9: 5,576,859 km (0.114 R)
• M10: 6,057,367 km (0.032 R)
• M11: 6,879,258 km (0.103 R)
• M12: 8,745,342 km (0.1 R)
• M13: 9,335,805 km (0.055 R)
• M14: 11,510,060 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610.2

Radius: 8.7

Gravity: 8.06 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 2.71 AU - 3.47 AU

Year: 3563 Days

Day: 7 Hours

Environment

Temp: -202 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 25,878,126 km

• M1: 108,159 km (0.111 R)
• M2: 400,025 km (0.088 R)
• M3: 670,946 km (0.117 R)
• M4: 960,119 km (0.075 R)
• M5: 1,295,966 km (0.091 R)
• M6: 1,829,881 km (0.086 R)
• M7: 2,168,870 km (0.102 R)
• M8: 2,708,021 km (0.07 R)
• M9: 3,296,539 km (0.111 R)
• M10: 3,822,674 km (0.037 R)
• M11: 4,247,532 km (0.113 R)
• M12: 5,987,954 km (0.106 R)
• M13: 7,720,746 km (0.115 R)
• M14: 8,022,036 km (0.12 R)
• M15: 8,471,129 km (0.05 R)
• M16: 9,083,732 km (0.032 R)
• M17: 10,765,063 km (0.088 R)
• M18: 11,701,246 km (0.073 R)
• M19: 12,279,292 km (0.098 R)
• M20: 12,922,862 km (0.068 R)
• M21: 14,028,989 km (0.088 R)
• M22: 15,249,109 km (0.116 R)
• M23: 16,871,947 km (0.036 R)
• M24: 17,552,318 km (0.069 R)
• M25: 20,015,148 km (0.092 R)
• M26: 21,296,304 km (0.048 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.7

Radius: 14.8

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 2.52 AU - 3.96 AU

Year: 3826 Days

Day: 9.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 25,878,126 km

• M1: 184,604 km (0.116 R)
• M2: 653,294 km (0.086 R)
• M3: 1,193,791 km (0.113 R)
• M4: 1,686,417 km (0.115 R)
• M5: 2,289,147 km (0.103 R)
• M6: 3,436,861 km (0.071 R)
• M7: 5,064,636 km (0.117 R)
• M8: 6,193,053 km (0.079 R)
• M9: 7,450,572 km (0.106 R)
• M10: 8,689,841 km (0.073 R)
• M11: 9,397,289 km (0.056 R)
• M12: 11,098,068 km (0.101 R)
• M13: 11,619,715 km (0.088 R)
• M14: 12,203,446 km (0.08 R)
• M15: 12,759,502 km (0.12 R)
• M16: 14,633,065 km (0.069 R)
• M17: 16,853,696 km (0.093 R)
• M18: 18,859,205 km (0.108 R)
• M19: 20,887,752 km (0.078 R)
• M20: 21,752,129 km (0.078 R)
• M21: 22,227,401 km (0.072 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 460.1

Radius: 13.5

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 3.54 AU - 4.04 AU

Year: 4840 Days

Day: 14.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 25,878,126 km

• M1: 167,849 km (0.109 R)
• M2: 630,256 km (0.045 R)
• M3: 1,214,436 km (0.086 R)
• M4: 1,728,454 km (0.082 R)
• M5: 2,197,742 km (0.08 R)
• M6: 2,637,859 km (0.057 R)
• M7: 3,324,214 km (0.068 R)
• M8: 4,756,016 km (0.118 R)
• M9: 5,583,591 km (0.111 R)
• M10: 6,813,285 km (0.109 R)
• M11: 7,626,948 km (0.098 R)
• M12: 8,687,597 km (0.119 R)
• M13: 10,293,381 km (0.043 R)
• M14: 10,884,741 km (0.077 R)
• M15: 14,447,714 km (0.072 R)
• M16: 14,975,196 km (0.097 R)
• M17: 19,670,474 km (0.093 R)
• M18: 21,386,362 km (0.108 R)
• M19: 22,561,154 km (0.12 R)
• M20: 23,997,593 km (0.11 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 350 - 13,557 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit