🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.55

Radius: 0.79

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.45 AU - 0.59 AU

Year: 242 Days

Day: 46.4 Hours

Environment

Temp: -126 °C

Axial Tilt: 50 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 41,383,058 km

• M1: 74,201 km (0.106 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.77

Radius: 1.26

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.54 AU - 0.8 AU

Year: 354 Days

Day: 36.7 Hours

Environment

Temp: -132 °C

Axial Tilt: 18.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.1

Radius: 10.1

Gravity: 9.04 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.75 AU - 0.93 AU

Year: 497 Days

Day: 12.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 41,383,058 km

• M1: 125,662 km (0.114 R)
• M2: 448,195 km (0.105 R)
• M3: 796,459 km (0.11 R)
• M4: 1,154,447 km (0.116 R)
• M5: 1,666,819 km (0.05 R)
• M6: 2,074,025 km (0.073 R)
• M7: 2,495,592 km (0.077 R)
• M8: 2,882,751 km (0.117 R)
• M9: 3,297,436 km (0.114 R)
• M10: 3,875,183 km (0.056 R)
• M11: 4,899,779 km (0.094 R)
• M12: 5,617,250 km (0.034 R)
• M13: 6,039,116 km (0.078 R)
• M14: 6,640,949 km (0.06 R)
• M15: 6,967,072 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706.6

Radius: 10.3

Gravity: 6.66 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.81 AU - 0.93 AU

Year: 524 Days

Day: 12.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,383,058 km

• M1: 128,205 km (0.117 R)
• M2: 481,705 km (0.035 R)
• M3: 810,072 km (0.045 R)
• M4: 1,164,171 km (0.057 R)
• M5: 1,594,115 km (0.106 R)
• M6: 2,129,226 km (0.104 R)
• M7: 2,684,534 km (0.119 R)
• M8: 3,321,970 km (0.107 R)
• M9: 4,099,879 km (0.074 R)
• M10: 5,125,373 km (0.068 R)
• M11: 5,497,123 km (0.089 R)
• M12: 6,486,564 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 795

Radius: 14.9

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 2.33 AU - 3.65 AU

Year: 3338 Days

Day: 8.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 41,383,058 km

• M1: 185,501 km (0.069 R)
• M2: 658,829 km (0.042 R)
• M3: 1,216,679 km (0.114 R)
• M4: 1,690,456 km (0.096 R)
• M5: 2,572,784 km (0.083 R)
• M6: 3,138,414 km (0.105 R)
• M7: 3,626,552 km (0.083 R)
• M8: 4,319,938 km (0.08 R)
• M9: 6,001,867 km (0.072 R)
• M10: 8,191,082 km (0.074 R)
• M11: 8,758,507 km (0.055 R)
• M12: 9,238,865 km (0.096 R)
• M13: 10,744,867 km (0.053 R)
• M14: 12,272,112 km (0.112 R)
• M15: 13,016,660 km (0.101 R)
• M16: 13,497,169 km (0.099 R)
• M17: 15,167,728 km (0.054 R)
• M18: 16,245,132 km (0.119 R)
• M19: 17,200,614 km (0.101 R)
• M20: 19,223,775 km (0.036 R)
• M21: 21,534,314 km (0.108 R)
• M22: 22,207,804 km (0.073 R)
• M23: 22,756,529 km (0.047 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 801.3

Radius: 3.7

Gravity: 58.53 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 5.9 AU - 7.82 AU

Year: 11601 Days

Day: 19.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 41,383,058 km

• M1: 46,076 km (0.037 R)
• M2: 274,213 km (0.1 R)
• M3: 465,549 km (0.11 R)
• M4: 715,078 km (0.092 R)
• M5: 959,072 km (0.114 R)
• M6: 1,673,851 km (0.075 R)
• M7: 1,854,714 km (0.105 R)
• M8: 1,994,140 km (0.101 R)
• M9: 2,235,890 km (0.069 R)
• M10: 3,774,653 km (0.104 R)
• M11: 4,144,459 km (0.031 R)
• M12: 4,353,298 km (0.095 R)
• M13: 4,537,902 km (0.118 R)
• M14: 5,504,603 km (0.099 R)
• M15: 6,130,970 km (0.089 R)
• M16: 6,803,562 km (0.11 R)
• M17: 7,700,700 km (0.052 R)
• M18: 12,630,249 km (0.098 R)
• M19: 12,879,928 km (0.046 R)
• M20: 13,845,283 km (0.088 R)
• M21: 16,136,973 km (0.099 R)
• M22: 17,257,461 km (0.061 R)
• M23: 19,156,456 km (0.114 R)
• M24: 20,928,593 km (0.111 R)
• M25: 22,714,941 km (0.089 R)
• M26: 24,600,472 km (0.085 R)
• M27: 26,384,427 km (0.099 R)
• M28: 28,465,632 km (0.111 R)
• M29: 29,546,028 km (0.089 R)
• M30: 31,331,180 km (0.067 R)
• M31: 31,903,541 km (0.063 R)
• M32: 34,262,400 km (0.105 R)
• M33: 34,504,450 km (0.08 R)
• M34: 35,732,050 km (0.099 R)
• M35: 41,206,733 km (0.118 R)
• M36: 46,915,837 km (0.07 R)
• M37: 49,032,198 km (0.084 R)
• M38: 52,005,007 km (0.086 R)
• M39: 54,599,782 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 176.5

Radius: 5.1

Gravity: 6.79 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 6.75 AU - 10.11 AU

Year: 15804 Days

Day: 20.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 41,383,058 km

• M1: 63,429 km (0.086 R)
• M2: 312,510 km (0.063 R)
• M3: 832,363 km (0.054 R)
• M4: 1,009,935 km (0.093 R)
• M5: 1,235,828 km (0.058 R)
• M6: 1,404,724 km (0.078 R)
• M7: 2,384,889 km (0.115 R)
• M8: 2,747,814 km (0.105 R)
• M9: 3,417,863 km (0.111 R)
• M10: 3,904,504 km (0.109 R)
• M11: 4,298,844 km (0.049 R)
• M12: 5,707,308 km (0.077 R)
• M13: 6,214,894 km (0.111 R)
• M14: 6,497,784 km (0.107 R)
• M15: 9,258,911 km (0.069 R)
• M16: 9,768,741 km (0.12 R)
• M17: 11,048,102 km (0.028 R)
• M18: 11,306,457 km (0.072 R)
• M19: 13,755,674 km (0.117 R)
• M20: 16,071,449 km (0.12 R)
• M21: 21,458,019 km (0.108 R)
• M22: 29,985,098 km (0.094 R)
• M23: 30,386,768 km (0.11 R)
• M24: 36,734,804 km (0.119 R)
• M25: 37,310,158 km (0.09 R)
• M26: 40,277,432 km (0.076 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 213 - 14,391 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit