🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 93.5

Radius: 10.4

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.55 AU - 0.55 AU

Year: 282 Days

Day: 13.5 Hours

Environment

Temp: -148 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 33,566,135 km

• M1: 130,300 km (0.054 R)
• M2: 608,863 km (0.06 R)
• M3: 943,663 km (0.118 R)
• M4: 1,572,872 km (0.113 R)
• M5: 1,901,987 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.4

Radius: 14.2

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.75 AU - 0.77 AU

Year: 457 Days

Day: 6.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 138.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 33,566,135 km

• M1: 176,525 km (0.112 R)
• M2: 631,153 km (0.09 R)
• M3: 1,080,396 km (0.08 R)
• M4: 1,771,837 km (0.107 R)
• M5: 2,758,136 km (0.078 R)
• M6: 3,215,905 km (0.062 R)
• M7: 3,979,603 km (0.086 R)
• M8: 4,906,661 km (0.081 R)
• M9: 5,389,712 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 757.4

Radius: 11.3

Gravity: 5.93 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.9 AU - 2.56 AU

Year: 2299 Days

Day: 14.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 33,566,135 km

• M1: 170,841 km (0.114 R)
• M2: 966,402 km (0.117 R)
• M3: 1,469,350 km (0.056 R)
• M4: 1,867,879 km (0.09 R)
• M5: 2,475,695 km (0.085 R)
• M6: 4,009,223 km (0.109 R)
• M7: 4,979,365 km (0.112 R)
• M8: 5,423,222 km (0.069 R)
• M9: 5,893,408 km (0.062 R)
• M10: 6,831,088 km (0.098 R)
• M11: 8,633,293 km (0.116 R)
• M12: 9,001,453 km (0.118 R)
• M13: 9,520,558 km (0.117 R)
• M14: 10,392,564 km (0.11 R)
• M15: 10,809,793 km (0.084 R)
• M16: 14,467,161 km (0.098 R)
• M17: 16,369,597 km (0.116 R)
• M18: 17,780,754 km (0.097 R)
• M19: 18,268,742 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.3

Radius: 13.6

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 2.2 AU - 3.38 AU

Year: 3217 Days

Day: 8.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,566,135 km

• M1: 170,242 km (0.081 R)
• M2: 713,881 km (0.078 R)
• M3: 1,209,499 km (0.093 R)
• M4: 3,135,871 km (0.082 R)
• M5: 3,956,116 km (0.076 R)
• M6: 5,350,069 km (0.093 R)
• M7: 6,871,180 km (0.096 R)
• M8: 7,700,401 km (0.03 R)
• M9: 8,189,287 km (0.051 R)
• M10: 9,229,590 km (0.079 R)
• M11: 11,280,577 km (0.102 R)
• M12: 11,869,693 km (0.117 R)
• M13: 12,836,993 km (0.116 R)
• M14: 16,639,921 km (0.027 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 746.3

Radius: 6.2

Gravity: 19.41 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 6.49 AU - 6.71 AU

Year: 11704 Days

Day: 23.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 33,566,135 km

• M1: 261,647 km (0.063 R)
• M2: 1,118,244 km (0.12 R)
• M3: 1,481,318 km (0.101 R)
• M4: 1,989,652 km (0.085 R)
• M5: 2,693,510 km (0.053 R)
• M6: 3,150,232 km (0.045 R)
• M7: 8,174,476 km (0.117 R)
• M8: 8,594,846 km (0.1 R)
• M9: 11,311,095 km (0.108 R)
• M10: 16,018,342 km (0.113 R)
• M11: 17,200,464 km (0.094 R)
• M12: 19,325,502 km (0.101 R)
• M13: 22,603,939 km (0.026 R)
• M14: 27,873,524 km (0.027 R)
• M15: 29,146,452 km (0.054 R)
• M16: 35,725,318 km (0.067 R)
• M17: 40,085,797 km (0.106 R)
• M18: 43,650,415 km (0.108 R)
• M19: 49,231,462 km (0.115 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 933.1

Radius: 4.4

Gravity: 48.2 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 6.67 AU - 10.09 AU

Year: 16745 Days

Day: 16.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 33,566,135 km

• M1: 54,753 km (0.097 R)
• M2: 255,812 km (0.115 R)
• M3: 429,047 km (0.113 R)
• M4: 1,076,805 km (0.094 R)
• M5: 1,646,025 km (0.066 R)
• M6: 1,938,040 km (0.092 R)
• M7: 2,242,322 km (0.088 R)
• M8: 2,485,120 km (0.115 R)
• M9: 3,432,822 km (0.074 R)
• M10: 3,635,976 km (0.119 R)
• M11: 4,163,010 km (0.112 R)
• M12: 6,345,942 km (0.094 R)
• M13: 6,877,313 km (0.049 R)
• M14: 9,246,196 km (0.048 R)
• M15: 10,461,230 km (0.055 R)
• M16: 11,391,579 km (0.049 R)
• M17: 12,443,551 km (0.075 R)
• M18: 16,552,406 km (0.119 R)
• M19: 19,134,914 km (0.048 R)
• M20: 22,978,831 km (0.096 R)
• M21: 24,757,550 km (0.087 R)
• M22: 26,178,281 km (0.047 R)
• M23: 30,517,367 km (0.06 R)
• M24: 33,574,250 km (0.115 R)
• M25: 37,958,964 km (0.087 R)
• M26: 39,991,849 km (0.097 R)
• M27: 41,034,846 km (0.051 R)
• M28: 41,790,913 km (0.074 R)
• M29: 42,865,026 km (0.11 R)
• M30: 49,527,666 km (0.116 R)
• M31: 53,551,251 km (0.08 R)
• M32: 55,550,477 km (0.099 R)
• M33: 57,410,427 km (0.069 R)
• M34: 58,928,097 km (0.102 R)
• M35: 64,247,199 km (0.115 R)
• M36: 68,599,001 km (0.115 R)
• M37: 69,877,465 km (0.094 R)
• M38: 72,043,492 km (0.105 R)
• M39: 74,253,950 km (0.127 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 528.1

Radius: 3.6

Gravity: 40.75 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 8.56 AU - 9.1 AU

Year: 18111 Days

Day: 24.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 33,566,135 km

• M1: 44,730 km (0.09 R)
• M2: 181,612 km (0.093 R)
• M3: 400,623 km (0.079 R)
• M4: 1,343,538 km (0.109 R)
• M5: 1,571,376 km (0.043 R)
• M6: 4,159,120 km (0.097 R)
• M7: 7,535,993 km (0.118 R)
• M8: 9,488,095 km (0.06 R)
• M9: 11,505,423 km (0.097 R)
• M10: 11,752,708 km (0.056 R)
• M11: 13,447,801 km (0.098 R)
• M12: 14,496,183 km (0.118 R)
• M13: 17,232,478 km (0.09 R)
• M14: 19,584,755 km (0.079 R)
• M15: 21,764,097 km (0.092 R)
• M16: 24,099,619 km (0.097 R)
• M17: 36,423,342 km (0.034 R)
• M18: 36,822,618 km (0.089 R)
• M19: 38,724,456 km (0.064 R)
• M20: 40,690,920 km (0.104 R)
• M21: 40,833,786 km (0.089 R)
• M22: 41,553,651 km (0.095 R)
• M23: 46,830,716 km (0.074 R)
• M24: 64,524,554 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 60.4

Radius: 5.6

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 8.76 AU - 9.94 AU

Year: 19735 Days

Day: 23.3 Hours

Environment

Temp: -237 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 33,566,135 km

• M1: 69,713 km (0.081 R)
• M2: 411,993 km (0.055 R)
• M3: 1,951,504 km (0.029 R)
• M4: 5,492,037 km (0.08 R)
• M5: 6,079,059 km (0.076 R)
• M6: 6,673,112 km (0.065 R)
• M7: 7,710,125 km (0.052 R)
• M8: 9,311,121 km (0.051 R)
• M9: 15,183,885 km (0.111 R)
• M10: 18,674,003 km (0.11 R)
• M11: 23,130,823 km (0.031 R)
• M12: 27,099,804 km (0.118 R)
• M13: 27,891,326 km (0.111 R)
• M14: 28,879,420 km (0.071 R)
• M15: 29,061,630 km (0.091 R)
• M16: 30,264,397 km (0.12 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: 389 - 12,612 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit