🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.9

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.58 AU - 0.68 AU

Year: 185 Days

Day: 30.7 Hours

Environment

Temp: 121 °C

Axial Tilt: 6.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.67

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 2.62 AU - 3.44 AU

Year: 1956 Days

Day: 17.2 Hours

Environment

Temp: -98 °C

Axial Tilt: 0.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 3.15 AU - 4.51 AU

Year: 2780 Days

Day: 38.5 Hours

Environment

Temp: -120 °C

Axial Tilt: 10.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.6

Radius: 0.82

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 3.71 AU - 4.43 AU

Year: 3045 Days

Day: 30.2 Hours

Environment

Temp: -126 °C

Axial Tilt: 36.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,654,809 km

• M1: 368,759 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871

Radius: 12.9

Gravity: 5.23 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 4.53 AU - 5.47 AU

Year: 4146 Days

Day: 8.1 Hours

Environment

Temp: -136 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 75,654,809 km

• M1: 160,369 km (0.059 R)
• M2: 625,469 km (0.109 R)
• M3: 1,360,144 km (0.105 R)
• M4: 1,773,632 km (0.086 R)
• M5: 3,160,704 km (0.076 R)
• M6: 3,643,157 km (0.116 R)
• M7: 4,532,815 km (0.114 R)
• M8: 5,176,086 km (0.112 R)
• M9: 5,850,324 km (0.088 R)
• M10: 7,829,653 km (0.108 R)
• M11: 9,228,992 km (0.11 R)
• M12: 10,612,174 km (0.061 R)
• M13: 13,320,494 km (0.074 R)
• M14: 17,981,814 km (0.082 R)
• M15: 18,551,931 km (0.085 R)
• M16: 19,795,089 km (0.108 R)
• M17: 20,884,461 km (0.101 R)
• M18: 23,556,130 km (0.049 R)
• M19: 24,701,600 km (0.035 R)
• M20: 25,169,991 km (0.112 R)
• M21: 26,044,241 km (0.044 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 436.8

Radius: 13.7

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 6.08 AU - 6.96 AU

Year: 6174 Days

Day: 5.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 75,654,809 km

• M1: 170,392 km (0.086 R)
• M2: 635,193 km (0.12 R)
• M3: 1,423,873 km (0.081 R)
• M4: 1,907,822 km (0.087 R)
• M5: 2,518,779 km (0.11 R)
• M6: 3,398,564 km (0.084 R)
• M7: 5,338,101 km (0.119 R)
• M8: 6,279,221 km (0.109 R)
• M9: 8,004,234 km (0.047 R)
• M10: 12,469,431 km (0.054 R)
• M11: 16,690,634 km (0.066 R)
• M12: 17,549,177 km (0.086 R)
• M13: 20,509,270 km (0.089 R)
• M14: 23,787,857 km (0.112 R)
• M15: 24,718,056 km (0.089 R)
• M16: 27,569,691 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.1

Radius: 11.5

Gravity: 4.98 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 6.07 AU - 7.07 AU

Year: 6245 Days

Day: 9.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 75,654,809 km

• M1: 143,016 km (0.074 R)
• M2: 519,553 km (0.085 R)
• M3: 965,056 km (0.08 R)
• M4: 1,471,893 km (0.079 R)
• M5: 2,137,604 km (0.091 R)
• M6: 2,532,243 km (0.107 R)
• M7: 6,383,042 km (0.106 R)
• M8: 8,666,354 km (0.077 R)
• M9: 10,821,312 km (0.089 R)
• M10: 12,881,274 km (0.073 R)
• M11: 14,661,339 km (0.03 R)
• M12: 15,610,538 km (0.084 R)
• M13: 16,162,105 km (0.11 R)
• M14: 16,726,688 km (0.097 R)
• M15: 19,396,860 km (0.114 R)
• M16: 20,686,394 km (0.107 R)
• M17: 21,054,554 km (0.089 R)
• M18: 21,728,193 km (0.036 R)
• M19: 23,515,289 km (0.065 R)
• M20: 24,403,751 km (0.119 R)
• M21: 25,905,714 km (0.102 R)
• M22: 27,028,146 km (0.116 R)
• M23: 27,734,847 km (0.093 R)
• M24: 28,363,307 km (0.071 R)
• M25: 29,093,196 km (0.117 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.8

Radius: 12.4

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 8.83 AU - 10.41 AU

Year: 11065 Days

Day: 5.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 75,654,809 km

• M1: 169,943 km (0.114 R)
• M2: 607,966 km (0.085 R)
• M3: 1,751,492 km (0.089 R)
• M4: 2,155,107 km (0.096 R)
• M5: 2,621,553 km (0.046 R)
• M6: 3,299,979 km (0.113 R)
• M7: 6,547,300 km (0.04 R)
• M8: 7,030,053 km (0.089 R)
• M9: 7,913,129 km (0.104 R)
• M10: 9,119,187 km (0.102 R)
• M11: 10,124,185 km (0.117 R)
• M12: 10,771,196 km (0.04 R)
• M13: 13,861,440 km (0.094 R)
• M14: 14,486,160 km (0.092 R)
• M15: 18,432,402 km (0.084 R)
• M16: 19,118,608 km (0.106 R)
• M17: 21,056,798 km (0.079 R)
• M18: 21,806,732 km (0.095 R)
• M19: 23,043,757 km (0.119 R)
• M20: 23,759,882 km (0.082 R)
• M21: 26,254,277 km (0.066 R)
• M22: 26,773,381 km (0.051 R)
• M23: 29,751,875 km (0.106 R)
• M24: 31,272,687 km (0.075 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 668.4

Radius: 5.1

Gravity: 25.7 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 12.51 AU - 14.77 AU

Year: 18682 Days

Day: 20.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 75,654,809 km

• M1: 69,114 km (0.116 R)
• M2: 229,184 km (0.103 R)
• M3: 417,378 km (0.059 R)
• M4: 581,487 km (0.092 R)
• M5: 1,123,031 km (0.1 R)
• M6: 1,315,264 km (0.087 R)
• M7: 1,731,446 km (0.094 R)
• M8: 1,970,204 km (0.112 R)
• M9: 2,358,710 km (0.088 R)
• M10: 2,629,332 km (0.079 R)
• M11: 2,920,450 km (0.073 R)
• M12: 3,683,548 km (0.095 R)
• M13: 4,304,679 km (0.057 R)
• M14: 5,792,130 km (0.092 R)
• M15: 8,081,726 km (0.096 R)
• M16: 11,985,931 km (0.085 R)
• M17: 13,058,997 km (0.112 R)
• M18: 13,477,422 km (0.071 R)
• M19: 14,861,501 km (0.113 R)
• M20: 16,257,698 km (0.089 R)
• M21: 16,905,457 km (0.034 R)
• M22: 17,235,619 km (0.082 R)
• M23: 17,739,016 km (0.047 R)
• M24: 24,566,214 km (0.079 R)
• M25: 25,096,688 km (0.078 R)
• M26: 26,511,286 km (0.115 R)
• M27: 27,294,580 km (0.07 R)
• M28: 28,556,438 km (0.055 R)
• M29: 32,194,958 km (0.081 R)
• M30: 32,702,244 km (0.097 R)
• M31: 33,602,823 km (0.07 R)
• M32: 34,519,858 km (0.074 R)
• M33: 35,453,499 km (0.05 R)
• M34: 38,213,579 km (0.061 R)
• M35: 41,411,383 km (0.083 R)
• M36: 45,098,223 km (0.116 R)
• M37: 52,940,891 km (0.073 R)
• M38: 53,116,968 km (0.101 R)
• M39: 61,450,317 km (0.083 R)
• M40: 70,613,636 km (0.081 R)

Planet 10 - Ice Giant

Semi-Major Axis: 13.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 729.2

Radius: 3.2

Gravity: 71.21 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 12.26 AU - 15.54 AU

Year: 19219 Days

Day: 23.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 75,654,809 km

• M1: 39,943 km (0.093 R)
• M2: 221,704 km (0.114 R)
• M3: 332,406 km (0.066 R)
• M4: 542,292 km (0.103 R)
• M5: 644,767 km (0.088 R)
• M6: 770,579 km (0.088 R)
• M7: 1,059,153 km (0.104 R)
• M8: 1,808,638 km (0.056 R)
• M9: 1,922,333 km (0.073 R)
• M10: 2,494,395 km (0.044 R)
• M11: 3,337,678 km (0.073 R)
• M12: 3,808,163 km (0.115 R)
• M13: 3,932,330 km (0.086 R)
• M14: 4,123,815 km (0.042 R)
• M15: 5,483,360 km (0.109 R)
• M16: 6,093,720 km (0.067 R)
• M17: 6,437,196 km (0.116 R)
• M18: 6,658,302 km (0.098 R)
• M19: 7,691,575 km (0.107 R)
• M20: 8,454,524 km (0.1 R)
• M21: 8,559,990 km (0.053 R)
• M22: 16,536,549 km (0.086 R)
• M23: 17,542,894 km (0.049 R)
• M24: 21,094,497 km (0.062 R)
• M25: 22,680,384 km (0.096 R)
• M26: 27,679,047 km (0.033 R)
• M27: 27,911,672 km (0.076 R)
• M28: 30,063,936 km (0.056 R)
• M29: 30,556,711 km (0.069 R)
• M30: 35,510,645 km (0.115 R)
• M31: 36,617,520 km (0.118 R)
• M32: 36,757,543 km (0.088 R)
• M33: 38,609,714 km (0.106 R)
• M34: 40,224,773 km (0.081 R)
• M35: 40,523,071 km (0.074 R)
• M36: 50,869,858 km (0.103 R)
• M37: 56,086,934 km (0.095 R)
• M38: 56,646,131 km (0.103 R)
• M39: 57,021,024 km (0.108 R)
• M40: 57,586,504 km (0.068 R)
• M41: 57,775,745 km (0.086 R)
• M42: 65,280,472 km (0.077 R)
• M43: 70,340,171 km (0.079 R)
• M44: 73,631,474 km (0.028 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 468 - 14,646 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit