🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 206.3

Radius: 13.5

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.68 AU - 0.84 AU

Year: 457 Days

Day: 10.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 73,210,124 km

• M1: 167,849 km (0.038 R)
• M2: 693,685 km (0.059 R)
• M3: 1,130,062 km (0.085 R)
• M4: 1,566,589 km (0.052 R)
• M5: 2,125,786 km (0.116 R)
• M6: 2,890,380 km (0.049 R)
• M7: 3,945,644 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.5

Radius: 8.4

Gravity: 6.26 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.77 AU - 1.04 AU

Year: 589 Days

Day: 13.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,210,124 km

• M1: 104,569 km (0.111 R)
• M2: 389,702 km (0.109 R)
• M3: 692,937 km (0.077 R)
• M4: 1,053,917 km (0.099 R)
• M5: 1,797,718 km (0.105 R)
• M6: 2,329,987 km (0.092 R)
• M7: 2,864,949 km (0.038 R)
• M8: 3,516,597 km (0.117 R)
• M9: 3,785,275 km (0.092 R)
• M10: 4,451,285 km (0.053 R)
• M11: 5,576,709 km (0.073 R)
• M12: 5,872,315 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.9

Radius: 9.7

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.24 AU - 1.56 AU

Year: 1143 Days

Day: 8.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 148.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,210,124 km

• M1: 120,576 km (0.117 R)
• M2: 476,020 km (0.032 R)
• M3: 815,907 km (0.042 R)
• M4: 1,384,678 km (0.074 R)
• M5: 1,714,242 km (0.115 R)
• M6: 2,858,067 km (0.084 R)
• M7: 3,182,844 km (0.103 R)
• M8: 3,709,878 km (0.066 R)
• M9: 4,449,190 km (0.061 R)
• M10: 4,904,566 km (0.111 R)
• M11: 5,319,251 km (0.1 R)
• M12: 6,004,709 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.3

Radius: 12.1

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.12 AU - 1.8 AU

Year: 1218 Days

Day: 7.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 73,210,124 km

• M1: 150,495 km (0.119 R)
• M2: 670,647 km (0.111 R)
• M3: 1,063,790 km (0.077 R)
• M4: 1,795,474 km (0.117 R)
• M5: 2,266,258 km (0.075 R)
• M6: 2,894,270 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 364.7

Radius: 11.9

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 2.16 AU - 2.8 AU

Year: 2696 Days

Day: 12.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 73,210,124 km

• M1: 148,850 km (0.102 R)
• M2: 645,365 km (0.114 R)
• M3: 1,108,221 km (0.08 R)
• M4: 2,291,540 km (0.085 R)
• M5: 2,691,565 km (0.089 R)
• M6: 3,347,552 km (0.091 R)
• M7: 3,723,042 km (0.102 R)
• M8: 4,539,248 km (0.111 R)
• M9: 5,110,413 km (0.102 R)
• M10: 5,705,364 km (0.117 R)
• M11: 6,244,365 km (0.039 R)
• M12: 6,657,554 km (0.07 R)
• M13: 7,978,354 km (0.069 R)
• M14: 9,366,472 km (0.082 R)
• M15: 13,111,057 km (0.095 R)
• M16: 13,661,726 km (0.041 R)
• M17: 14,449,509 km (0.043 R)
• M18: 15,406,786 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 768

Radius: 9.5

Gravity: 8.51 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 3.39 AU - 3.59 AU

Year: 4500 Days

Day: 9.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 73,210,124 km

• M1: 119,230 km (0.113 R)
• M2: 635,941 km (0.108 R)
• M3: 1,465,760 km (0.07 R)
• M4: 2,038,570 km (0.1 R)
• M5: 4,237,060 km (0.101 R)
• M6: 5,260,460 km (0.108 R)
• M7: 6,535,781 km (0.076 R)
• M8: 7,860,919 km (0.091 R)
• M9: 8,956,574 km (0.104 R)
• M10: 11,920,258 km (0.088 R)
• M11: 12,802,586 km (0.102 R)
• M12: 13,157,282 km (0.073 R)
• M13: 15,425,036 km (0.049 R)
• M14: 16,117,974 km (0.097 R)
• M15: 25,089,208 km (0.102 R)
• M16: 26,782,058 km (0.088 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 741

Radius: 5.4

Gravity: 25.41 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 5.99 AU - 7.71 AU

Year: 12375 Days

Day: 23.9 Hours

Environment

Temp: -238 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 73,210,124 km

• M1: 68,965 km (0.066 R)
• M2: 303,534 km (0.081 R)
• M3: 630,106 km (0.045 R)
• M4: 952,340 km (0.07 R)
• M5: 1,310,777 km (0.115 R)
• M6: 2,066,096 km (0.113 R)
• M7: 2,313,381 km (0.029 R)
• M8: 2,559,021 km (0.104 R)
• M9: 3,427,586 km (0.11 R)
• M10: 4,446,647 km (0.102 R)
• M11: 4,666,107 km (0.03 R)
• M12: 5,368,170 km (0.093 R)
• M13: 7,849,999 km (0.104 R)
• M14: 10,448,065 km (0.096 R)
• M15: 11,177,355 km (0.083 R)
• M16: 11,583,812 km (0.107 R)
• M17: 12,060,281 km (0.115 R)
• M18: 15,986,178 km (0.112 R)
• M19: 16,726,538 km (0.056 R)
• M20: 17,722,710 km (0.094 R)
• M21: 18,515,579 km (0.034 R)
• M22: 20,171,627 km (0.028 R)
• M23: 20,948,040 km (0.108 R)
• M24: 21,565,730 km (0.067 R)
• M25: 21,833,959 km (0.095 R)
• M26: 25,728,291 km (0.107 R)
• M27: 26,846,834 km (0.116 R)
• M28: 29,728,986 km (0.092 R)
• M29: 35,226,409 km (0.111 R)
• M30: 37,114,035 km (0.084 R)
• M31: 38,803,743 km (0.111 R)
• M32: 39,600,501 km (0.118 R)
• M33: 40,816,133 km (0.112 R)
• M34: 41,226,780 km (0.077 R)
• M35: 44,035,480 km (0.114 R)
• M36: 47,269,337 km (0.085 R)
• M37: 48,330,584 km (0.08 R)
• M38: 52,250,497 km (0.078 R)
• M39: 55,367,518 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 442.5

Radius: 6.2

Gravity: 11.51 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 9.88 AU - 11.12 AU

Year: 23485 Days

Day: 24.2 Hours

Environment

Temp: -240 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 73,210,124 km

• M1: 79,736 km (0.073 R)
• M2: 282,142 km (0.036 R)
• M3: 716,424 km (0.057 R)
• M4: 978,520 km (0.097 R)
• M5: 2,451,161 km (0.112 R)
• M6: 3,546,367 km (0.047 R)
• M7: 5,304,142 km (0.105 R)
• M8: 5,973,144 km (0.047 R)
• M9: 10,419,641 km (0.068 R)
• M10: 10,720,333 km (0.088 R)
• M11: 15,020,823 km (0.078 R)
• M12: 15,638,064 km (0.049 R)
• M13: 25,594,251 km (0.11 R)
• M14: 26,252,182 km (0.084 R)
• M15: 36,962,343 km (0.084 R)
• M16: 37,944,004 km (0.091 R)
• M17: 41,893,687 km (0.104 R)
• M18: 51,981,969 km (0.045 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 460 - 14,079 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit