🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.2

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.52 AU - 0.58 AU

Year: 145 Days

Day: 35.6 Hours

Environment

Temp: 182 °C

Axial Tilt: 43.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.02

Radius: 1.01

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.3 AU - 2.08 AU

Year: 783 Days

Day: 42.6 Hours

Environment

Temp: -30 °C

Axial Tilt: 4.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 83,633,117 km

• M1: 24,235 km (0.075 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.14

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.89 AU - 2.55 AU

Year: 1179 Days

Day: 27.6 Hours

Environment

Temp: -70 °C

Axial Tilt: 10.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 83,633,117 km

• M1: 466,147 km (0.056 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.81

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 2.93 AU - 3.99 AU

Year: 2294 Days

Day: 23.7 Hours

Environment

Temp: -100 °C

Axial Tilt: 8.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.52 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772.4

Radius: 11

Gravity: 6.38 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 6.51 AU - 8.65 AU

Year: 7439 Days

Day: 9.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 83,633,117 km

• M1: 136,882 km (0.06 R)
• M2: 774,618 km (0.09 R)
• M3: 1,412,802 km (0.083 R)
• M4: 2,448,319 km (0.102 R)
• M5: 2,971,014 km (0.079 R)
• M6: 3,758,347 km (0.072 R)
• M7: 4,294,506 km (0.091 R)
• M8: 4,851,758 km (0.117 R)
• M9: 5,551,876 km (0.097 R)
• M10: 6,077,713 km (0.105 R)
• M11: 6,672,514 km (0.096 R)
• M12: 7,657,017 km (0.062 R)
• M13: 9,087,323 km (0.092 R)
• M14: 9,494,079 km (0.051 R)
• M15: 10,938,746 km (0.089 R)
• M16: 12,972,679 km (0.087 R)
• M17: 18,341,297 km (0.103 R)
• M18: 19,959,647 km (0.107 R)
• M19: 27,484,570 km (0.098 R)
• M20: 30,798,013 km (0.115 R)
• M21: 31,924,634 km (0.117 R)
• M22: 33,719,510 km (0.102 R)
• M23: 37,164,150 km (0.12 R)
• M24: 39,030,832 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291.7

Radius: 11

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 7.81 AU - 9.07 AU

Year: 8740 Days

Day: 13.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 83,633,117 km

• M1: 137,181 km (0.092 R)
• M2: 486,343 km (0.068 R)
• M3: 962,513 km (0.083 R)
• M4: 1,349,074 km (0.111 R)
• M5: 1,895,854 km (0.1 R)
• M6: 3,545,170 km (0.098 R)
• M7: 4,240,352 km (0.115 R)
• M8: 4,594,749 km (0.106 R)
• M9: 6,844,851 km (0.112 R)
• M10: 7,334,634 km (0.088 R)
• M11: 8,423,856 km (0.083 R)
• M12: 10,054,622 km (0.067 R)
• M13: 11,445,284 km (0.069 R)
• M14: 12,288,119 km (0.116 R)
• M15: 14,321,303 km (0.099 R)
• M16: 16,138,768 km (0.084 R)
• M17: 16,507,527 km (0.094 R)
• M18: 17,583,135 km (0.056 R)
• M19: 18,303,599 km (0.064 R)
• M20: 19,803,467 km (0.108 R)
• M21: 20,655,427 km (0.079 R)
• M22: 21,163,461 km (0.099 R)
• M23: 21,903,821 km (0.091 R)
• M24: 23,436,152 km (0.109 R)
• M25: 23,909,480 km (0.027 R)
• M26: 24,875,284 km (0.051 R)
• M27: 25,367,909 km (0.119 R)
• M28: 25,783,343 km (0.095 R)
• M29: 26,203,264 km (0.109 R)
• M30: 29,729,136 km (0.08 R)
• M31: 30,470,543 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 823.2

Radius: 11.9

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 8.57 AU - 14.15 AU

Year: 13648 Days

Day: 6.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 83,633,117 km

• M1: 147,952 km (0.09 R)
• M2: 909,106 km (0.073 R)
• M3: 1,406,818 km (0.101 R)
• M4: 2,217,040 km (0.115 R)
• M5: 3,420,406 km (0.066 R)
• M6: 5,586,284 km (0.117 R)
• M7: 7,827,260 km (0.107 R)
• M8: 9,355,851 km (0.118 R)
• M9: 11,793,548 km (0.038 R)
• M10: 12,227,232 km (0.103 R)
• M11: 13,192,288 km (0.081 R)
• M12: 15,056,278 km (0.046 R)
• M13: 17,485,897 km (0.089 R)
• M14: 19,386,238 km (0.098 R)
• M15: 23,109,131 km (0.106 R)
• M16: 25,291,315 km (0.109 R)
• M17: 26,432,448 km (0.099 R)
• M18: 33,146,101 km (0.069 R)
• M19: 37,223,989 km (0.063 R)
• M20: 37,622,518 km (0.037 R)
• M21: 40,633,774 km (0.107 R)
• M22: 41,767,426 km (0.07 R)
• M23: 42,342,181 km (0.12 R)
• M24: 44,544,561 km (0.068 R)
• M25: 46,667,953 km (0.096 R)
• M26: 48,857,917 km (0.096 R)
• M27: 52,436,597 km (0.11 R)
• M28: 54,119,573 km (0.05 R)
• M29: 59,384,371 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 537.1

Radius: 3.5

Gravity: 43.84 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 13.31 AU - 21.63 AU

Year: 26028 Days

Day: 15.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 46.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 83,633,117 km

• M1: 43,683 km (0.08 R)
• M2: 180,864 km (0.083 R)
• M3: 795,711 km (0.087 R)
• M4: 1,021,305 km (0.075 R)
• M5: 2,082,253 km (0.097 R)
• M6: 2,211,356 km (0.075 R)
• M7: 2,485,868 km (0.104 R)
• M8: 4,312,009 km (0.104 R)
• M9: 6,370,177 km (0.086 R)
• M10: 6,551,340 km (0.092 R)
• M11: 7,115,623 km (0.091 R)
• M12: 8,502,395 km (0.118 R)
• M13: 8,722,005 km (0.048 R)
• M14: 8,833,305 km (0.112 R)
• M15: 9,520,857 km (0.027 R)
• M16: 10,618,158 km (0.093 R)
• M17: 11,394,720 km (0.042 R)
• M18: 14,026,745 km (0.113 R)
• M19: 16,101,069 km (0.079 R)
• M20: 18,923,682 km (0.115 R)
• M21: 21,751,231 km (0.046 R)
• M22: 22,999,326 km (0.106 R)
• M23: 25,751,179 km (0.059 R)
• M24: 26,326,832 km (0.114 R)
• M25: 31,897,707 km (0.069 R)
• M26: 44,138,253 km (0.102 R)
• M27: 47,839,005 km (0.105 R)
• M28: 49,764,629 km (0.114 R)
• M29: 51,378,042 km (0.09 R)
• M30: 53,211,215 km (0.1 R)
• M31: 55,658,935 km (0.098 R)
• M32: 59,569,573 km (0.113 R)
• M33: 62,001,586 km (0.053 R)
• M34: 63,868,567 km (0.076 R)
• M35: 69,915,762 km (0.111 R)
• M36: 70,809,609 km (0.077 R)
• M37: 76,333,510 km (0.063 R)
• M38: 76,569,725 km (0.107 R)
• M39: 83,382,562 km (0.092 R)

Kuiper Belt

Range: 30.8 - 53.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 289 - 13,647 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit