🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.6

Radius: 8.5

Gravity: 6.64 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.71 AU - 0.77 AU

Year: 447 Days

Day: 5.3 Hours

Environment

Temp: -166 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,913,151 km

• M1: 105,766 km (0.106 R)
• M2: 372,050 km (0.089 R)
• M3: 687,253 km (0.1 R)
• M4: 966,402 km (0.055 R)
• M5: 1,264,551 km (0.05 R)
• M6: 1,848,282 km (0.074 R)
• M7: 2,245,314 km (0.119 R)
• M8: 2,708,320 km (0.103 R)
• M9: 3,301,176 km (0.056 R)
• M10: 3,580,625 km (0.075 R)
• M11: 4,081,628 km (0.047 R)
• M12: 4,363,022 km (0.03 R)
• M13: 4,686,004 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 816.3

Radius: 9.8

Gravity: 8.5 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.98 AU - 1.14 AU

Year: 767 Days

Day: 6.2 Hours

Environment

Temp: -185 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,913,151 km

• M1: 121,922 km (0.063 R)
• M2: 599,289 km (0.103 R)
• M3: 914,193 km (0.055 R)
• M4: 1,446,911 km (0.109 R)
• M5: 1,925,025 km (0.069 R)
• M6: 2,268,951 km (0.105 R)
• M7: 2,772,198 km (0.042 R)
• M8: 3,134,823 km (0.101 R)
• M9: 5,113,405 km (0.105 R)
• M10: 5,622,935 km (0.12 R)
• M11: 6,124,537 km (0.07 R)
• M12: 7,171,273 km (0.087 R)
• M13: 7,569,353 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.1

Radius: 12.8

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.27 AU - 1.31 AU

Year: 1030 Days

Day: 11.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,913,151 km

• M1: 159,322 km (0.064 R)
• M2: 662,419 km (0.094 R)
• M3: 1,086,679 km (0.101 R)
• M4: 1,777,671 km (0.079 R)
• M5: 2,224,670 km (0.113 R)
• M6: 2,641,001 km (0.111 R)
• M7: 3,162,349 km (0.11 R)
• M8: 3,619,670 km (0.107 R)
• M9: 4,916,085 km (0.073 R)
• M10: 6,457,990 km (0.041 R)
• M11: 7,153,172 km (0.113 R)
• M12: 8,327,365 km (0.109 R)
• M13: 9,096,897 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740

Radius: 12.9

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.38 AU - 1.58 AU

Year: 1266 Days

Day: 7.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 48,913,151 km

• M1: 189,840 km (0.094 R)
• M2: 676,182 km (0.045 R)
• M3: 1,375,104 km (0.09 R)
• M4: 2,152,265 km (0.056 R)
• M5: 2,816,928 km (0.114 R)
• M6: 5,967,758 km (0.058 R)
• M7: 6,568,095 km (0.101 R)
• M8: 8,108,205 km (0.073 R)
• M9: 9,231,086 km (0.091 R)
• M10: 11,537,736 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 934.3

Radius: 12.5

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 2.7 AU - 2.74 AU

Year: 3153 Days

Day: 8 Hours

Environment

Temp: -202 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 48,913,151 km

• M1: 159,920 km (0.072 R)
• M2: 580,589 km (0.107 R)
• M3: 1,268,889 km (0.099 R)
• M4: 4,095,092 km (0.102 R)
• M5: 4,905,464 km (0.098 R)
• M6: 6,540,419 km (0.108 R)
• M7: 6,938,050 km (0.072 R)
• M8: 8,159,517 km (0.111 R)
• M9: 8,876,988 km (0.113 R)
• M10: 12,220,800 km (0.115 R)
• M11: 13,305,534 km (0.096 R)
• M12: 15,884,003 km (0.097 R)
• M13: 16,549,264 km (0.114 R)
• M14: 18,840,505 km (0.089 R)
• M15: 21,603,728 km (0.062 R)
• M16: 23,541,918 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.9

Radius: 14.5

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 4.16 AU - 5.72 AU

Year: 7718 Days

Day: 5 Hours

Environment

Temp: -222 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 48,913,151 km

• M1: 203,154 km (0.077 R)
• M2: 688,150 km (0.074 R)
• M3: 1,584,391 km (0.117 R)
• M4: 2,081,206 km (0.113 R)
• M5: 2,722,083 km (0.1 R)
• M6: 3,516,298 km (0.074 R)
• M7: 4,033,009 km (0.12 R)
• M8: 4,801,493 km (0.061 R)
• M9: 5,764,455 km (0.029 R)
• M10: 6,310,038 km (0.096 R)
• M11: 7,426,487 km (0.099 R)
• M12: 9,575,161 km (0.09 R)
• M13: 10,147,224 km (0.094 R)
• M14: 15,003,769 km (0.082 R)
• M15: 17,543,492 km (0.115 R)
• M16: 18,694,348 km (0.119 R)
• M17: 20,592,446 km (0.085 R)
• M18: 22,532,730 km (0.099 R)
• M19: 24,065,809 km (0.037 R)
• M20: 24,592,095 km (0.066 R)
• M21: 25,395,884 km (0.112 R)
• M22: 25,849,914 km (0.084 R)
• M23: 27,529,599 km (0.115 R)
• M24: 29,981,807 km (0.12 R)
• M25: 33,004,881 km (0.08 R)
• M26: 35,092,519 km (0.069 R)
• M27: 39,772,838 km (0.06 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 988.2

Radius: 3.5

Gravity: 80.67 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 8.52 AU - 9.24 AU

Year: 18601 Days

Day: 23.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 48,913,151 km

• M1: 43,533 km (0.112 R)
• M2: 164,857 km (0.089 R)
• M3: 513,121 km (0.103 R)
• M4: 650,601 km (0.071 R)
• M5: 939,325 km (0.104 R)
• M6: 1,052,720 km (0.118 R)
• M7: 1,764,806 km (0.098 R)
• M8: 3,376,424 km (0.111 R)
• M9: 4,123,665 km (0.09 R)
• M10: 4,643,219 km (0.038 R)
• M11: 5,089,320 km (0.103 R)
• M12: 5,563,246 km (0.103 R)
• M13: 7,454,611 km (0.051 R)
• M14: 8,222,348 km (0.119 R)
• M15: 11,096,871 km (0.116 R)
• M16: 12,651,193 km (0.096 R)
• M17: 14,421,684 km (0.095 R)
• M18: 15,853,186 km (0.111 R)
• M19: 21,106,016 km (0.087 R)
• M20: 22,012,878 km (0.065 R)
• M21: 23,368,235 km (0.088 R)
• M22: 25,786,933 km (0.043 R)
• M23: 27,885,791 km (0.084 R)
• M24: 28,246,472 km (0.118 R)
• M25: 32,685,190 km (0.066 R)
• M26: 33,220,302 km (0.09 R)
• M27: 35,700,634 km (0.082 R)
• M28: 36,410,925 km (0.069 R)
• M29: 38,154,039 km (0.08 R)
• M30: 41,962,352 km (0.059 R)
• M31: 44,201,832 km (0.115 R)
• M32: 48,917,307 km (0.075 R)
• M33: 52,301,061 km (0.111 R)
• M34: 58,151,236 km (0.089 R)
• M35: 62,148,191 km (0.091 R)
• M36: 65,052,335 km (0.115 R)
• M37: 80,694,288 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 150

Radius: 3.4

Gravity: 12.98 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 8.68 AU - 11.2 AU

Year: 22029 Days

Day: 23.6 Hours

Environment

Temp: -234 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 48,913,151 km

• M1: 246,238 km (0.092 R)
• M2: 555,606 km (0.072 R)
• M3: 2,084,198 km (0.065 R)
• M4: 2,191,908 km (0.1 R)
• M5: 2,418,698 km (0.104 R)
• M6: 3,663,053 km (0.025 R)
• M7: 4,956,028 km (0.096 R)
• M8: 5,549,034 km (0.058 R)
• M9: 5,756,825 km (0.102 R)
• M10: 6,953,608 km (0.114 R)
• M11: 13,339,941 km (0.114 R)
• M12: 14,349,428 km (0.117 R)
• M13: 15,273,643 km (0.097 R)
• M14: 21,750,483 km (0.118 R)
• M15: 24,970,428 km (0.109 R)
• M16: 26,014,322 km (0.117 R)
• M17: 38,097,491 km (0.086 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 370 - 18,181 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit