🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.03

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.52 AU - 0.76 AU

Year: 326 Days

Day: 21.5 Hours

Environment

Temp: -137 °C

Axial Tilt: 24.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 496.3

Radius: 8.6

Gravity: 6.71 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.7 AU - 0.84 AU

Year: 430 Days

Day: 11.6 Hours

Environment

Temp: -145 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 79,857,414 km

• M1: 106,962 km (0.096 R)
• M2: 402,269 km (0.034 R)
• M3: 1,191,248 km (0.085 R)
• M4: 1,514,678 km (0.046 R)
• M5: 1,784,553 km (0.079 R)
• M6: 2,111,424 km (0.083 R)
• M7: 3,656,920 km (0.068 R)
• M8: 4,175,277 km (0.08 R)
• M9: 4,902,322 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.3

Radius: 13

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.09 AU - 1.15 AU

Year: 754 Days

Day: 9.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 79,857,414 km

• M1: 162,014 km (0.095 R)
• M2: 574,755 km (0.112 R)
• M3: 1,359,097 km (0.117 R)
• M4: 2,164,532 km (0.04 R)
• M5: 2,649,677 km (0.114 R)
• M6: 3,058,379 km (0.087 R)
• M7: 4,005,333 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102.2

Radius: 9.4

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 4.12 AU - 5.4 AU

Year: 6603 Days

Day: 10.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 79,857,414 km

• M1: 121,922 km (0.099 R)
• M2: 477,516 km (0.045 R)
• M3: 805,435 km (0.099 R)
• M4: 1,193,342 km (0.046 R)
• M5: 1,567,038 km (0.119 R)
• M6: 1,921,734 km (0.104 R)
• M7: 3,150,830 km (0.097 R)
• M8: 6,356,713 km (0.085 R)
• M9: 9,780,709 km (0.097 R)
• M10: 13,353,106 km (0.106 R)
• M11: 14,939,891 km (0.04 R)
• M12: 16,753,017 km (0.115 R)
• M13: 17,496,219 km (0.106 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 663.1

Radius: 7.4

Gravity: 12.11 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 6.44 AU - 7.44 AU

Year: 11624 Days

Day: 22.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 79,857,414 km

• M1: 92,003 km (0.095 R)
• M2: 392,096 km (0.115 R)
• M3: 672,293 km (0.068 R)
• M4: 1,001,259 km (0.108 R)
• M5: 1,278,164 km (0.109 R)
• M6: 2,222,276 km (0.082 R)
• M7: 2,636,662 km (0.041 R)
• M8: 4,109,154 km (0.056 R)
• M9: 5,119,389 km (0.058 R)
• M10: 8,105,362 km (0.04 R)
• M11: 9,480,316 km (0.093 R)
• M12: 9,783,102 km (0.044 R)
• M13: 10,144,531 km (0.051 R)
• M14: 12,028,417 km (0.101 R)
• M15: 12,806,625 km (0.096 R)
• M16: 15,550,699 km (0.102 R)
• M17: 21,469,688 km (0.109 R)
• M18: 21,729,988 km (0.115 R)
• M19: 22,613,065 km (0.101 R)
• M20: 23,428,074 km (0.067 R)
• M21: 25,794,712 km (0.064 R)
• M22: 27,799,324 km (0.033 R)
• M23: 29,262,839 km (0.06 R)
• M24: 31,330,132 km (0.105 R)
• M25: 33,144,904 km (0.111 R)
• M26: 34,078,096 km (0.025 R)
• M27: 36,487,669 km (0.04 R)
• M28: 37,357,131 km (0.12 R)
• M29: 38,879,739 km (0.079 R)
• M30: 39,137,496 km (0.104 R)
• M31: 39,786,750 km (0.028 R)
• M32: 43,556,168 km (0.108 R)
• M33: 50,254,562 km (0.091 R)
• M34: 51,485,454 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 658.8

Radius: 5.2

Gravity: 24.36 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 9.43 AU - 9.63 AU

Year: 18706 Days

Day: 20.7 Hours

Environment

Temp: -239 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 79,857,414 km

• M1: 96,191 km (0.025 R)
• M2: 292,613 km (0.103 R)
• M3: 497,263 km (0.06 R)
• M4: 1,430,604 km (0.092 R)
• M5: 1,869,824 km (0.073 R)
• M6: 2,080,906 km (0.099 R)
• M7: 2,329,239 km (0.102 R)
• M8: 3,011,555 km (0.083 R)
• M9: 3,612,041 km (0.096 R)
• M10: 3,818,934 km (0.097 R)
• M11: 7,187,579 km (0.084 R)
• M12: 8,404,708 km (0.115 R)
• M13: 10,931,266 km (0.058 R)
• M14: 14,212,247 km (0.064 R)
• M15: 14,878,705 km (0.119 R)
• M16: 15,105,495 km (0.083 R)
• M17: 20,231,466 km (0.083 R)
• M18: 20,509,718 km (0.065 R)
• M19: 23,640,054 km (0.064 R)
• M20: 24,891,590 km (0.102 R)
• M21: 30,827,484 km (0.068 R)
• M22: 32,955,513 km (0.059 R)
• M23: 33,729,383 km (0.092 R)
• M24: 37,084,564 km (0.106 R)
• M25: 38,062,336 km (0.108 R)
• M26: 39,778,373 km (0.055 R)
• M27: 43,672,256 km (0.1 R)
• M28: 44,605,597 km (0.096 R)
• M29: 48,141,492 km (0.069 R)
• M30: 52,730,856 km (0.073 R)
• M31: 53,434,564 km (0.114 R)
• M32: 69,697,947 km (0.052 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 790.7

Radius: 6.5

Gravity: 18.71 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 8.07 AU - 11.11 AU

Year: 18883 Days

Day: 22 Hours

Environment

Temp: -228 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 79,857,414 km

• M1: 80,932 km (0.115 R)
• M2: 822,339 km (0.053 R)
• M3: 1,038,957 km (0.115 R)
• M4: 1,492,688 km (0.114 R)
• M5: 1,932,954 km (0.075 R)
• M6: 4,425,853 km (0.057 R)
• M7: 7,166,935 km (0.065 R)
• M8: 7,501,286 km (0.107 R)
• M9: 7,845,960 km (0.108 R)
• M10: 8,567,021 km (0.061 R)
• M11: 9,672,699 km (0.092 R)
• M12: 11,058,125 km (0.053 R)
• M13: 12,366,209 km (0.056 R)
• M14: 14,821,559 km (0.068 R)
• M15: 22,141,682 km (0.119 R)
• M16: 25,952,089 km (0.036 R)
• M17: 27,198,239 km (0.116 R)
• M18: 30,054,661 km (0.091 R)
• M19: 31,937,949 km (0.11 R)
• M20: 43,325,339 km (0.067 R)
• M21: 51,663,475 km (0.065 R)
• M22: 52,909,925 km (0.073 R)
• M23: 54,358,780 km (0.037 R)
• M24: 66,915,427 km (0.111 R)
• M25: 69,036,874 km (0.076 R)
• M26: 76,355,800 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 200.9

Radius: 7.6

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 8.12 AU - 11.24 AU

Year: 19149 Days

Day: 15.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 79,857,414 km

• M1: 94,695 km (0.104 R)
• M2: 480,808 km (0.118 R)
• M3: 842,086 km (0.09 R)
• M4: 1,265,299 km (0.088 R)
• M5: 2,020,918 km (0.093 R)
• M6: 2,891,577 km (0.059 R)
• M7: 3,674,273 km (0.067 R)
• M8: 4,326,969 km (0.107 R)
• M9: 5,118,641 km (0.085 R)
• M10: 5,967,609 km (0.05 R)
• M11: 6,520,074 km (0.1 R)
• M12: 7,727,029 km (0.051 R)
• M13: 8,794,859 km (0.098 R)
• M14: 14,185,917 km (0.092 R)
• M15: 14,902,341 km (0.066 R)
• M16: 15,987,076 km (0.098 R)
• M17: 16,407,146 km (0.097 R)
• M18: 17,269,279 km (0.117 R)
• M19: 17,935,438 km (0.069 R)
• M20: 20,280,235 km (0.073 R)
• M21: 24,722,245 km (0.097 R)
• M22: 30,515,422 km (0.07 R)
• M23: 39,902,390 km (0.06 R)
• M24: 41,458,208 km (0.067 R)
• M25: 42,651,400 km (0.113 R)
• M26: 45,664,002 km (0.041 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 515.2

Radius: 7.6

Gravity: 8.92 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 10.14 AU - 12.86 AU

Year: 24796 Days

Day: 17.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 79,857,414 km

• M1: 94,695 km (0.085 R)
• M2: 742,305 km (0.087 R)
• M3: 1,103,434 km (0.097 R)
• M4: 1,512,734 km (0.095 R)
• M5: 2,424,981 km (0.118 R)
• M6: 2,807,503 km (0.103 R)
• M7: 4,300,789 km (0.096 R)
• M8: 4,681,815 km (0.109 R)
• M9: 5,123,129 km (0.106 R)
• M10: 7,123,252 km (0.118 R)
• M11: 7,411,527 km (0.102 R)
• M12: 8,428,643 km (0.104 R)
• M13: 8,970,936 km (0.109 R)
• M14: 9,651,905 km (0.062 R)
• M15: 10,005,106 km (0.117 R)
• M16: 13,583,337 km (0.105 R)
• M17: 13,878,194 km (0.106 R)
• M18: 18,110,318 km (0.119 R)
• M19: 20,614,287 km (0.081 R)
• M20: 23,869,986 km (0.099 R)
• M21: 25,619,683 km (0.081 R)
• M22: 26,183,517 km (0.062 R)
• M23: 27,219,333 km (0.111 R)
• M24: 28,043,617 km (0.064 R)
• M25: 29,990,035 km (0.057 R)
• M26: 32,024,865 km (0.041 R)
• M27: 42,483,851 km (0.115 R)
• M28: 44,395,861 km (0.03 R)
• M29: 44,882,652 km (0.052 R)
• M30: 47,201,719 km (0.09 R)
• M31: 47,878,649 km (0.12 R)
• M32: 53,529,409 km (0.029 R)
• M33: 55,195,331 km (0.075 R)
• M34: 65,083,750 km (0.056 R)
• M35: 66,344,262 km (0.106 R)
• M36: 67,407,155 km (0.066 R)
• M37: 68,265,548 km (0.105 R)
• M38: 71,771,972 km (0.115 R)
• M39: 72,442,619 km (0.092 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 508 - 11,001 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit