🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.1

Radius: 8.3

Gravity: 9.2 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.43 AU - 0.63 AU

Year: 257 Days

Day: 14.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 39,416,955 km

• M1: 103,223 km (0.101 R)
• M2: 362,924 km (0.063 R)
• M3: 670,946 km (0.062 R)
• M4: 981,960 km (0.119 R)
• M5: 1,499,569 km (0.055 R)
• M6: 2,339,561 km (0.098 R)
• M7: 3,025,168 km (0.084 R)
• M8: 3,781,236 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.6

Radius: 14.8

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.92 AU - 0.96 AU

Year: 608 Days

Day: 10.2 Hours

Environment

Temp: -176 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 39,416,955 km

• M1: 184,005 km (0.043 R)
• M2: 662,569 km (0.062 R)
• M3: 1,209,200 km (0.113 R)
• M4: 1,861,147 km (0.089 R)
• M5: 2,321,759 km (0.095 R)
• M6: 2,968,321 km (0.067 R)
• M7: 4,406,106 km (0.033 R)
• M8: 5,062,093 km (0.083 R)
• M9: 5,730,197 km (0.12 R)
• M10: 6,288,047 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289.9

Radius: 8.5

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.05 AU - 1.73 AU

Year: 1093 Days

Day: 13.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,416,955 km

• M1: 105,766 km (0.105 R)
• M2: 392,246 km (0.118 R)
• M3: 1,398,590 km (0.063 R)
• M4: 2,097,661 km (0.088 R)
• M5: 2,408,526 km (0.054 R)
• M6: 3,251,659 km (0.093 R)
• M7: 4,715,325 km (0.117 R)
• M8: 5,696,238 km (0.116 R)
• M9: 6,470,258 km (0.109 R)
• M10: 7,111,883 km (0.097 R)
• M11: 7,493,956 km (0.061 R)
• M12: 8,008,722 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 778.8

Radius: 14.3

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.34 AU - 2 AU

Year: 1439 Days

Day: 6.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 39,416,955 km

• M1: 177,872 km (0.116 R)
• M2: 916,137 km (0.114 R)
• M3: 1,515,127 km (0.037 R)
• M4: 4,311,560 km (0.069 R)
• M5: 5,114,003 km (0.096 R)
• M6: 5,628,620 km (0.12 R)
• M7: 6,296,724 km (0.115 R)
• M8: 7,546,016 km (0.076 R)
• M9: 8,101,173 km (0.107 R)
• M10: 8,624,018 km (0.029 R)
• M11: 9,899,938 km (0.102 R)
• M12: 11,156,261 km (0.104 R)
• M13: 11,878,221 km (0.099 R)
• M14: 12,746,935 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 841.7

Radius: 11.9

Gravity: 5.94 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 1.7 AU - 2 AU

Year: 1678 Days

Day: 6.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 39,416,955 km

• M1: 148,102 km (0.091 R)
• M2: 650,152 km (0.073 R)
• M3: 2,081,804 km (0.08 R)
• M4: 2,879,460 km (0.109 R)
• M5: 3,390,486 km (0.034 R)
• M6: 6,468,163 km (0.09 R)
• M7: 7,349,444 km (0.118 R)
• M8: 9,187,254 km (0.116 R)
• M9: 10,406,028 km (0.078 R)
• M10: 12,352,745 km (0.086 R)
• M11: 13,079,940 km (0.109 R)
• M12: 14,798,371 km (0.049 R)
• M13: 15,204,828 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 359.2

Radius: 12.1

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 2.23 AU - 2.65 AU

Year: 2542 Days

Day: 9.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 39,416,955 km

• M1: 150,495 km (0.076 R)
• M2: 915,838 km (0.032 R)
• M3: 1,827,936 km (0.09 R)
• M4: 2,335,073 km (0.119 R)
• M5: 2,776,088 km (0.049 R)
• M6: 3,209,622 km (0.092 R)
• M7: 3,900,166 km (0.1 R)
• M8: 4,606,268 km (0.072 R)
• M9: 5,022,449 km (0.083 R)
• M10: 5,764,455 km (0.05 R)
• M11: 6,349,083 km (0.112 R)
• M12: 7,272,102 km (0.049 R)
• M13: 8,681,015 km (0.099 R)
• M14: 9,384,424 km (0.092 R)
• M15: 11,124,546 km (0.118 R)
• M16: 11,800,878 km (0.105 R)
• M17: 12,424,851 km (0.115 R)
• M18: 13,277,260 km (0.056 R)
• M19: 14,517,725 km (0.074 R)
• M20: 15,325,703 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.5

Radius: 14.1

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 3.95 AU - 4.19 AU

Year: 5475 Days

Day: 12.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 39,416,955 km

• M1: 175,777 km (0.105 R)
• M2: 614,398 km (0.06 R)
• M3: 1,595,312 km (0.083 R)
• M4: 2,361,702 km (0.084 R)
• M5: 2,849,690 km (0.085 R)
• M6: 3,405,596 km (0.091 R)
• M7: 5,120,286 km (0.099 R)
• M8: 8,768,679 km (0.072 R)
• M9: 10,043,103 km (0.06 R)
• M10: 10,540,068 km (0.098 R)
• M11: 13,276,961 km (0.086 R)
• M12: 15,724,232 km (0.094 R)
• M13: 16,832,902 km (0.047 R)
• M14: 17,342,133 km (0.069 R)
• M15: 17,861,687 km (0.099 R)
• M16: 18,728,008 km (0.039 R)
• M17: 19,275,087 km (0.118 R)
• M18: 19,973,709 km (0.062 R)
• M19: 20,472,917 km (0.105 R)
• M20: 26,271,181 km (0.098 R)
• M21: 27,654,962 km (0.06 R)
• M22: 30,756,275 km (0.085 R)
• M23: 32,098,168 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.6

Radius: 12

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 5.19 AU - 5.85 AU

Year: 8648 Days

Day: 10.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 39,416,955 km

• M1: 149,897 km (0.061 R)
• M2: 546,780 km (0.11 R)
• M3: 1,162,675 km (0.108 R)
• M4: 2,059,514 km (0.052 R)
• M5: 2,883,499 km (0.112 R)
• M6: 3,705,390 km (0.059 R)
• M7: 4,259,500 km (0.072 R)
• M8: 6,033,581 km (0.11 R)
• M9: 6,699,142 km (0.117 R)
• M10: 10,834,476 km (0.085 R)
• M11: 17,987,498 km (0.076 R)
• M12: 24,915,077 km (0.116 R)
• M13: 30,954,492 km (0.12 R)
• M14: 31,343,147 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 948

Radius: 4.4

Gravity: 48.97 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 7.08 AU - 10.1 AU

Year: 16789 Days

Day: 24 Hours

Environment

Temp: -240 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 39,416,955 km

• M1: 54,753 km (0.09 R)
• M2: 399,576 km (0.111 R)
• M3: 639,980 km (0.027 R)
• M4: 868,565 km (0.118 R)
• M5: 1,045,839 km (0.106 R)
• M6: 1,571,974 km (0.1 R)
• M7: 1,800,111 km (0.093 R)
• M8: 2,030,043 km (0.067 R)
• M9: 3,287,563 km (0.07 R)
• M10: 5,063,589 km (0.063 R)
• M11: 5,251,334 km (0.046 R)
• M12: 5,482,912 km (0.058 R)
• M13: 6,390,372 km (0.088 R)
• M14: 7,017,487 km (0.107 R)
• M15: 7,635,775 km (0.103 R)
• M16: 8,033,854 km (0.077 R)
• M17: 10,779,275 km (0.097 R)
• M18: 11,861,615 km (0.111 R)
• M19: 13,871,762 km (0.112 R)
• M20: 14,239,922 km (0.1 R)
• M21: 14,690,212 km (0.052 R)
• M22: 20,761,342 km (0.096 R)
• M23: 22,228,299 km (0.059 R)
• M24: 23,554,334 km (0.068 R)
• M25: 25,040,290 km (0.082 R)
• M26: 26,475,083 km (0.072 R)
• M27: 31,357,808 km (0.102 R)
• M28: 34,477,223 km (0.118 R)
• M29: 37,654,981 km (0.091 R)
• M30: 43,636,502 km (0.075 R)
• M31: 43,793,729 km (0.08 R)
• M32: 47,181,672 km (0.098 R)
• M33: 62,680,610 km (0.083 R)
• M34: 74,553,445 km (0.209 R)
• M35: 74,777,992 km (0.031 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 68

Radius: 6.6

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 8.88 AU - 12.72 AU

Year: 23668 Days

Day: 20.2 Hours

Environment

Temp: -242 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 39,416,955 km

• M1: 82,129 km (0.117 R)
• M2: 296,503 km (0.074 R)
• M3: 639,531 km (0.119 R)
• M4: 2,326,845 km (0.066 R)
• M5: 2,893,522 km (0.117 R)
• M6: 3,455,711 km (0.099 R)
• M7: 6,241,522 km (0.116 R)
• M8: 8,409,644 km (0.087 R)
• M9: 10,249,100 km (0.104 R)
• M10: 10,588,088 km (0.109 R)
• M11: 10,984,373 km (0.093 R)
• M12: 11,806,862 km (0.047 R)
• M13: 12,072,249 km (0.049 R)
• M14: 12,287,221 km (0.105 R)
• M15: 13,401,276 km (0.112 R)
• M16: 14,702,628 km (0.095 R)
• M17: 14,947,969 km (0.039 R)
• M18: 21,690,794 km (0.086 R)
• M19: 22,249,691 km (0.115 R)
• M20: 24,409,585 km (0.09 R)
• M21: 26,433,345 km (0.113 R)
• M22: 28,566,461 km (0.097 R)
• M23: 29,044,875 km (0.06 R)
• M24: 32,234,452 km (0.087 R)
• M25: 35,210,402 km (0.079 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 265 - 13,925 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit