🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.6

Radius: 13.1

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.55 AU - 0.85 AU

Year: 391 Days

Day: 11.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 79,494,200 km

• M1: 162,912 km (0.053 R)
• M2: 653,294 km (0.09 R)
• M3: 1,232,537 km (0.059 R)
• M4: 1,674,449 km (0.03 R)
• M5: 2,801,071 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344

Radius: 8.9

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.97 AU - 1.57 AU

Year: 954 Days

Day: 10.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 79,494,200 km

• M1: 110,702 km (0.079 R)
• M2: 430,094 km (0.034 R)
• M3: 721,511 km (0.118 R)
• M4: 1,145,321 km (0.08 R)
• M5: 1,466,658 km (0.108 R)
• M6: 1,944,772 km (0.04 R)
• M7: 2,335,821 km (0.059 R)
• M8: 2,677,054 km (0.079 R)
• M9: 3,014,995 km (0.047 R)
• M10: 3,368,196 km (0.085 R)
• M11: 4,597,143 km (0.042 R)
• M12: 5,567,734 km (0.119 R)
• M13: 5,984,513 km (0.062 R)
• M14: 6,565,402 km (0.094 R)
• M15: 7,360,664 km (0.098 R)
• M16: 7,654,923 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 114.2

Radius: 10.7

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.09 AU - 1.51 AU

Year: 988 Days

Day: 12.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 79,494,200 km

• M1: 132,993 km (0.09 R)
• M2: 498,909 km (0.088 R)
• M3: 885,171 km (0.059 R)
• M4: 1,596,957 km (0.102 R)
• M5: 2,013,737 km (0.111 R)
• M6: 2,400,896 km (0.066 R)
• M7: 3,455,561 km (0.084 R)
• M8: 4,187,693 km (0.083 R)
• M9: 5,315,811 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.7

Radius: 8.3

Gravity: 6.8 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 2.82 AU - 3.24 AU

Year: 3517 Days

Day: 6.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 79,494,200 km

• M1: 103,372 km (0.096 R)
• M2: 414,984 km (0.08 R)
• M3: 680,072 km (0.1 R)
• M4: 1,008,888 km (0.111 R)
• M5: 1,473,988 km (0.052 R)
• M6: 3,530,809 km (0.117 R)
• M7: 4,253,067 km (0.09 R)
• M8: 6,042,408 km (0.085 R)
• M9: 6,458,589 km (0.033 R)
• M10: 7,694,118 km (0.094 R)
• M11: 8,973,778 km (0.048 R)
• M12: 9,442,468 km (0.096 R)
• M13: 11,482,085 km (0.065 R)
• M14: 11,777,392 km (0.12 R)
• M15: 12,121,167 km (0.087 R)
• M16: 15,574,784 km (0.039 R)
• M17: 15,884,900 km (0.048 R)
• M18: 17,387,013 km (0.089 R)
• M19: 17,720,765 km (0.11 R)
• M20: 19,157,803 km (0.051 R)
• M21: 21,045,728 km (0.104 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 227.7

Radius: 3.9

Gravity: 14.97 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 6.37 AU - 7.05 AU

Year: 11591 Days

Day: 20.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 79,494,200 km

• M1: 50,564 km (0.117 R)
• M2: 593,156 km (0.076 R)
• M3: 997,369 km (0.109 R)
• M4: 1,339,649 km (0.103 R)
• M5: 1,486,554 km (0.119 R)
• M6: 1,871,918 km (0.088 R)
• M7: 2,235,740 km (0.079 R)
• M8: 2,588,791 km (0.084 R)
• M9: 5,282,899 km (0.117 R)
• M10: 6,371,523 km (0.073 R)
• M11: 7,525,072 km (0.12 R)
• M12: 8,726,642 km (0.086 R)
• M13: 10,808,745 km (0.112 R)
• M14: 11,655,320 km (0.097 R)
• M15: 16,047,214 km (0.073 R)
• M16: 20,519,592 km (0.114 R)
• M17: 22,998,279 km (0.078 R)
• M18: 26,544,945 km (0.098 R)
• M19: 26,989,999 km (0.058 R)
• M20: 27,169,367 km (0.065 R)
• M21: 28,078,324 km (0.11 R)
• M22: 28,913,678 km (0.109 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 119.8

Radius: 7.4

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 6.04 AU - 8.18 AU

Year: 12643 Days

Day: 24.1 Hours

Environment

Temp: -238 °C

Axial Tilt: 124.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 79,494,200 km

• M1: 92,451 km (0.117 R)
• M2: 334,650 km (0.089 R)
• M3: 969,993 km (0.111 R)
• M4: 1,420,432 km (0.095 R)
• M5: 2,541,967 km (0.116 R)
• M6: 3,998,153 km (0.08 R)
• M7: 4,613,898 km (0.118 R)
• M8: 5,579,851 km (0.031 R)
• M9: 6,252,293 km (0.115 R)
• M10: 6,575,425 km (0.093 R)
• M11: 7,794,647 km (0.066 R)
• M12: 12,806,176 km (0.105 R)
• M13: 16,091,495 km (0.103 R)
• M14: 18,349,974 km (0.089 R)
• M15: 19,350,485 km (0.101 R)
• M16: 22,494,882 km (0.093 R)
• M17: 25,389,751 km (0.113 R)
• M18: 26,547,040 km (0.119 R)
• M19: 27,394,960 km (0.114 R)
• M20: 29,683,658 km (0.098 R)
• M21: 30,689,255 km (0.097 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 682.7

Radius: 3.2

Gravity: 66.67 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 7.59 AU - 7.63 AU

Year: 13999 Days

Day: 15.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 79,494,200 km

• M1: 46,824 km (0.105 R)
• M2: 237,861 km (0.091 R)
• M3: 349,760 km (0.036 R)
• M4: 497,563 km (0.059 R)
• M5: 694,882 km (0.05 R)
• M6: 888,462 km (0.109 R)
• M7: 1,425,967 km (0.107 R)
• M8: 1,947,166 km (0.041 R)
• M9: 2,629,033 km (0.114 R)
• M10: 2,927,630 km (0.059 R)
• M11: 3,929,786 km (0.094 R)
• M12: 5,496,076 km (0.105 R)
• M13: 5,754,731 km (0.106 R)
• M14: 10,725,120 km (0.101 R)
• M15: 11,602,212 km (0.112 R)
• M16: 16,789,070 km (0.115 R)
• M17: 18,454,842 km (0.088 R)
• M18: 22,388,817 km (0.068 R)
• M19: 23,718,144 km (0.104 R)
• M20: 24,009,561 km (0.045 R)
• M21: 27,163,383 km (0.078 R)
• M22: 28,894,081 km (0.086 R)
• M23: 29,899,229 km (0.119 R)
• M24: 30,582,143 km (0.106 R)
• M25: 30,927,565 km (0.079 R)
• M26: 31,275,380 km (0.031 R)
• M27: 31,391,916 km (0.117 R)
• M28: 35,910,969 km (0.107 R)
• M29: 37,072,148 km (0.047 R)
• M30: 37,860,080 km (0.086 R)
• M31: 41,544,077 km (0.113 R)
• M32: 44,569,245 km (0.054 R)
• M33: 48,670,171 km (0.041 R)
• M34: 49,456,158 km (0.118 R)
• M35: 57,787,264 km (0.063 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 601.8

Radius: 4.7

Gravity: 27.24 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 9.85 AU - 11.21 AU

Year: 22786 Days

Day: 24.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 79,494,200 km

• M1: 66,721 km (0.051 R)
• M2: 377,735 km (0.119 R)
• M3: 847,921 km (0.11 R)
• M4: 1,406,818 km (0.086 R)
• M5: 2,356,914 km (0.096 R)
• M6: 3,071,693 km (0.109 R)
• M7: 4,627,062 km (0.108 R)
• M8: 7,248,914 km (0.066 R)
• M9: 9,518,913 km (0.03 R)
• M10: 20,784,530 km (0.077 R)
• M11: 21,077,891 km (0.11 R)
• M12: 22,483,214 km (0.085 R)
• M13: 28,369,441 km (0.081 R)
• M14: 36,323,560 km (0.091 R)
• M15: 40,273,692 km (0.117 R)
• M16: 44,825,207 km (0.097 R)
• M17: 44,988,119 km (0.115 R)
• M18: 52,910,074 km (0.048 R)
• M19: 70,557,985 km (0.113 R)
• M20: 72,109,764 km (0.076 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 510 - 19,489 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit