🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.78

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.46 AU - 0.7 AU

Year: 285 Days

Day: 30.4 Hours

Environment

Temp: -124 °C

Axial Tilt: 14.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 935.4

Radius: 9.2

Gravity: 11.05 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.79 AU - 0.91 AU

Year: 506 Days

Day: 10.4 Hours

Environment

Temp: -142 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 91,757,360 km

• M1: 114,442 km (0.119 R)
• M2: 410,945 km (0.084 R)
• M3: 775,665 km (0.109 R)
• M4: 1,150,557 km (0.108 R)
• M5: 1,637,947 km (0.091 R)
• M6: 2,709,816 km (0.115 R)
• M7: 3,123,155 km (0.085 R)
• M8: 3,421,752 km (0.102 R)
• M9: 3,780,637 km (0.12 R)
• M10: 4,238,407 km (0.092 R)
• M11: 4,927,903 km (0.101 R)
• M12: 5,386,870 km (0.028 R)
• M13: 5,986,308 km (0.069 R)
• M14: 6,273,088 km (0.102 R)
• M15: 7,083,310 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907.9

Radius: 14.1

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.88 AU - 0.96 AU

Year: 570 Days

Day: 14.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 91,757,360 km

• M1: 175,329 km (0.1 R)
• M2: 677,828 km (0.088 R)
• M3: 1,402,181 km (0.11 R)
• M4: 1,930,710 km (0.055 R)
• M5: 2,834,281 km (0.114 R)
• M6: 3,403,202 km (0.094 R)
• M7: 4,004,436 km (0.085 R)
• M8: 4,789,675 km (0.092 R)
• M9: 5,368,768 km (0.052 R)
• M10: 5,956,090 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439.6

Radius: 11.8

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.87 AU - 0.97 AU

Year: 570 Days

Day: 13.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 91,757,360 km

• M1: 146,756 km (0.098 R)
• M2: 652,247 km (0.099 R)
• M3: 1,056,610 km (0.114 R)
• M4: 1,483,113 km (0.099 R)
• M5: 1,856,809 km (0.038 R)
• M6: 2,276,281 km (0.08 R)
• M7: 2,885,294 km (0.1 R)
• M8: 3,563,272 km (0.109 R)
• M9: 4,302,584 km (0.119 R)
• M10: 4,709,042 km (0.092 R)
• M11: 5,433,245 km (0.119 R)
• M12: 6,121,844 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 303.4

Radius: 12.8

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.82 AU - 1.08 AU

Year: 598 Days

Day: 7.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 91,757,360 km

• M1: 160,668 km (0.12 R)
• M2: 733,478 km (0.06 R)
• M3: 1,240,166 km (0.118 R)
• M4: 2,085,394 km (0.035 R)
• M5: 3,845,114 km (0.071 R)
• M6: 4,609,709 km (0.105 R)
• M7: 5,158,733 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30.3

Radius: 10

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 3.71 AU - 3.85 AU

Year: 4745 Days

Day: 10.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 91,757,360 km

• M1: 124,316 km (0.098 R)
• M2: 467,643 km (0.077 R)
• M3: 1,237,174 km (0.045 R)
• M4: 2,369,481 km (0.08 R)
• M5: 5,721,520 km (0.065 R)
• M6: 9,195,033 km (0.073 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 990

Radius: 5.2

Gravity: 36.61 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 10.16 AU - 10.88 AU

Year: 22031 Days

Day: 23.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 76.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 91,757,360 km

• M1: 65,225 km (0.071 R)
• M2: 257,009 km (0.041 R)
• M3: 975,977 km (0.09 R)
• M4: 1,364,183 km (0.069 R)
• M5: 1,639,293 km (0.114 R)
• M6: 2,277,927 km (0.091 R)
• M7: 2,691,864 km (0.07 R)
• M8: 4,823,035 km (0.088 R)
• M9: 5,587,929 km (0.107 R)
• M10: 6,523,963 km (0.084 R)
• M11: 7,153,321 km (0.111 R)
• M12: 8,989,635 km (0.097 R)
• M13: 9,283,894 km (0.119 R)
• M14: 10,460,781 km (0.099 R)
• M15: 10,852,278 km (0.116 R)
• M16: 11,253,350 km (0.096 R)
• M17: 13,793,073 km (0.094 R)
• M18: 14,263,708 km (0.081 R)
• M19: 15,071,836 km (0.081 R)
• M20: 15,995,453 km (0.083 R)
• M21: 17,955,036 km (0.085 R)
• M22: 18,327,684 km (0.106 R)
• M23: 18,992,347 km (0.111 R)
• M24: 19,969,521 km (0.111 R)
• M25: 21,706,801 km (0.067 R)
• M26: 23,764,968 km (0.039 R)
• M27: 24,327,456 km (0.059 R)
• M28: 25,831,364 km (0.094 R)
• M29: 26,186,958 km (0.077 R)
• M30: 26,786,995 km (0.084 R)
• M31: 28,389,936 km (0.069 R)
• M32: 30,713,490 km (0.047 R)
• M33: 40,315,579 km (0.087 R)
• M34: 42,581,239 km (0.101 R)
• M35: 53,446,532 km (0.093 R)
• M36: 58,590,006 km (0.11 R)
• M37: 59,203,956 km (0.057 R)
• M38: 60,029,138 km (0.037 R)
• M39: 67,131,745 km (0.067 R)
• M40: 84,528,930 km (0.07 R)
• M41: 87,160,058 km (0.064 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 264 - 19,653 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit