🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.59 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.18 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.13

Radius: 0.44

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.13 AU - 1.23 AU

Year: 446 Days

Day: 29.2 Hours

Environment

Temp: 32 °C

Axial Tilt: 11.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.3

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 2.93 AU - 3.29 AU

Year: 1910 Days

Day: 15.3 Hours

Environment

Temp: -97 °C

Axial Tilt: 6.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 63,072,346 km

• M1: 2,762,624 km (0.114 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.29

Radius: 0.61

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 3.16 AU - 4.74 AU

Year: 2734 Days

Day: 42.8 Hours

Environment

Temp: -116 °C

Axial Tilt: 50 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.71

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 3.18 AU - 5.3 AU

Year: 3040 Days

Day: 44.8 Hours

Environment

Temp: -116 °C

Axial Tilt: 18.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.91 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.09

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 3.73 AU - 6.09 AU

Year: 3789 Days

Day: 26.5 Hours

Environment

Temp: -126 °C

Axial Tilt: 18.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 7.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 87.1

Radius: 12.9

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 6.61 AU - 7.65 AU

Year: 6630 Days

Day: 10.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 110.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 63,072,346 km

• M1: 164,558 km (0.078 R)
• M2: 636,389 km (0.081 R)
• M3: 1,065,735 km (0.104 R)
• M4: 1,525,749 km (0.089 R)
• M5: 2,584,453 km (0.102 R)
• M6: 3,182,844 km (0.078 R)
• M7: 6,997,740 km (0.097 R)
• M8: 11,515,146 km (0.064 R)
• M9: 16,638,425 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321.9

Radius: 9.5

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 8.8 AU - 10.8 AU

Year: 10684 Days

Day: 14.6 Hours

Environment

Temp: -175 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 63,072,346 km

• M1: 119,230 km (0.109 R)
• M2: 447,746 km (0.089 R)
• M3: 943,364 km (0.113 R)
• M4: 1,366,726 km (0.101 R)
• M5: 2,165,728 km (0.118 R)
• M6: 2,853,430 km (0.069 R)
• M7: 4,123,665 km (0.074 R)
• M8: 5,299,056 km (0.108 R)
• M9: 6,198,289 km (0.082 R)
• M10: 9,282,697 km (0.113 R)
• M11: 10,013,034 km (0.083 R)
• M12: 10,488,756 km (0.077 R)
• M13: 10,830,587 km (0.072 R)
• M14: 11,230,462 km (0.072 R)
• M15: 11,953,767 km (0.064 R)
• M16: 12,380,869 km (0.073 R)
• M17: 13,322,289 km (0.061 R)
• M18: 16,498,700 km (0.097 R)
• M19: 19,627,689 km (0.115 R)
• M20: 21,841,588 km (0.084 R)
• M21: 24,814,996 km (0.112 R)
• M22: 26,578,455 km (0.037 R)
• M23: 27,768,506 km (0.086 R)
• M24: 29,089,456 km (0.057 R)
• M25: 32,989,622 km (0.109 R)
• M26: 36,328,197 km (0.068 R)
• M27: 37,112,090 km (0.116 R)
• M28: 37,907,352 km (0.109 R)

Planet 8 - Gas Giant

Semi-Major Axis: 12.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 249.7

Radius: 13.1

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 11.87 AU - 12.83 AU

Year: 15115 Days

Day: 14.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 63,072,346 km

• M1: 194,627 km (0.076 R)
• M2: 2,276,880 km (0.105 R)
• M3: 3,735,459 km (0.043 R)
• M4: 9,532,676 km (0.117 R)
• M5: 10,717,042 km (0.081 R)
• M6: 11,722,340 km (0.073 R)
• M7: 12,276,300 km (0.03 R)
• M8: 13,737,722 km (0.089 R)
• M9: 15,574,934 km (0.071 R)
• M10: 17,428,002 km (0.114 R)
• M11: 32,919,161 km (0.066 R)
• M12: 34,697,431 km (0.06 R)
• M13: 36,773,550 km (0.033 R)
• M14: 42,973,634 km (0.106 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 422.1

Radius: 7.8

Gravity: 6.94 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 11.89 AU - 17.11 AU

Year: 19229 Days

Day: 20.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 63,072,346 km

• M1: 96,939 km (0.12 R)
• M2: 434,582 km (0.044 R)
• M3: 740,509 km (0.085 R)
• M4: 1,295,667 km (0.117 R)
• M5: 1,697,337 km (0.116 R)
• M6: 2,914,466 km (0.048 R)
• M7: 3,890,442 km (0.105 R)
• M8: 4,762,747 km (0.098 R)
• M9: 6,469,809 km (0.101 R)
• M10: 7,105,151 km (0.107 R)
• M11: 8,749,082 km (0.118 R)
• M12: 9,314,263 km (0.083 R)
• M13: 10,179,537 km (0.094 R)
• M14: 11,698,254 km (0.113 R)
• M15: 12,899,675 km (0.047 R)
• M16: 15,178,499 km (0.102 R)
• M17: 15,545,762 km (0.03 R)
• M18: 16,528,321 km (0.066 R)
• M19: 18,284,600 km (0.12 R)
• M20: 18,616,707 km (0.03 R)
• M21: 19,551,095 km (0.108 R)
• M22: 20,695,220 km (0.09 R)
• M23: 22,163,673 km (0.111 R)
• M24: 26,032,124 km (0.108 R)
• M25: 26,664,773 km (0.1 R)
• M26: 29,297,696 km (0.074 R)
• M27: 31,028,543 km (0.079 R)
• M28: 33,194,122 km (0.077 R)
• M29: 35,202,025 km (0.094 R)
• M30: 36,235,746 km (0.089 R)
• M31: 36,760,236 km (0.115 R)
• M32: 40,433,013 km (0.08 R)
• M33: 43,896,802 km (0.089 R)
• M34: 44,343,202 km (0.106 R)
• M35: 46,620,830 km (0.079 R)
• M36: 47,241,212 km (0.062 R)
• M37: 56,688,617 km (0.03 R)
• M38: 58,107,852 km (0.066 R)
• M39: 61,759,087 km (0.117 R)
• M40: 62,507,226 km (0.037 R)

Kuiper Belt

Range: 31.5 - 58.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 286 - 20,013 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit