🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.3

Radius: 10.4

Gravity: 6.95 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.71 AU - 0.75 AU

Year: 416 Days

Day: 14.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 68,267,823 km

• M1: 129,402 km (0.086 R)
• M2: 495,319 km (0.104 R)
• M3: 859,290 km (0.117 R)
• M4: 1,345,932 km (0.045 R)
• M5: 1,745,658 km (0.059 R)
• M6: 2,146,131 km (0.087 R)
• M7: 2,588,043 km (0.085 R)
• M8: 2,991,209 km (0.057 R)
• M9: 3,424,445 km (0.066 R)
• M10: 4,262,941 km (0.066 R)
• M11: 5,043,543 km (0.041 R)
• M12: 5,492,935 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 962.2

Radius: 12.8

Gravity: 5.87 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.66 AU - 0.92 AU

Year: 468 Days

Day: 12.4 Hours

Environment

Temp: -171 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 68,267,823 km

• M1: 159,172 km (0.092 R)
• M2: 592,108 km (0.097 R)
• M3: 1,139,637 km (0.114 R)
• M4: 1,601,894 km (0.07 R)
• M5: 2,004,911 km (0.098 R)
• M6: 2,466,719 km (0.113 R)
• M7: 3,270,359 km (0.091 R)
• M8: 3,740,695 km (0.073 R)
• M9: 4,212,676 km (0.062 R)
• M10: 4,931,045 km (0.055 R)
• M11: 5,801,256 km (0.118 R)
• M12: 6,612,375 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.7

Radius: 9

Gravity: 7.27 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.78 AU - 0.96 AU

Year: 541 Days

Day: 10 Hours

Environment

Temp: -174 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 68,267,823 km

• M1: 112,049 km (0.11 R)
• M2: 471,981 km (0.076 R)
• M3: 760,406 km (0.083 R)
• M4: 1,049,878 km (0.1 R)
• M5: 1,495,979 km (0.1 R)
• M6: 2,109,031 km (0.043 R)
• M7: 3,106,250 km (0.083 R)
• M8: 3,710,027 km (0.085 R)
• M9: 5,349,769 km (0.063 R)
• M10: 5,728,252 km (0.117 R)
• M11: 6,424,181 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.7

Radius: 14.9

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.78 AU - 1.18 AU

Year: 647 Days

Day: 13.4 Hours

Environment

Temp: -179 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 68,267,823 km

• M1: 188,493 km (0.112 R)
• M2: 769,232 km (0.093 R)
• M3: 1,348,475 km (0.089 R)
• M4: 2,156,005 km (0.115 R)
• M5: 2,731,956 km (0.095 R)
• M6: 4,582,632 km (0.115 R)
• M7: 5,765,352 km (0.086 R)
• M8: 6,559,567 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414.4

Radius: 11.5

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.99 AU - 1.03 AU

Year: 677 Days

Day: 13.6 Hours

Environment

Temp: -167 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,267,823 km

• M1: 143,016 km (0.074 R)
• M2: 555,307 km (0.118 R)
• M3: 1,017,266 km (0.056 R)
• M4: 1,442,123 km (0.085 R)
• M5: 1,814,473 km (0.117 R)
• M6: 2,261,172 km (0.057 R)
• M7: 2,857,020 km (0.057 R)
• M8: 3,355,331 km (0.094 R)
• M9: 3,924,850 km (0.097 R)
• M10: 4,305,576 km (0.042 R)
• M11: 5,043,991 km (0.089 R)
• M12: 5,547,089 km (0.056 R)
• M13: 5,955,342 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458.1

Radius: 9.4

Gravity: 5.18 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 2.37 AU - 2.93 AU

Year: 2877 Days

Day: 10.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 68,267,823 km

• M1: 116,836 km (0.074 R)
• M2: 410,796 km (0.117 R)
• M3: 1,066,334 km (0.07 R)
• M4: 1,461,571 km (0.064 R)
• M5: 2,344,947 km (0.098 R)
• M6: 2,834,281 km (0.076 R)
• M7: 3,863,365 km (0.084 R)
• M8: 4,338,637 km (0.068 R)
• M9: 5,217,076 km (0.116 R)
• M10: 6,422,536 km (0.065 R)
• M11: 6,862,952 km (0.093 R)
• M12: 8,210,679 km (0.114 R)
• M13: 9,479,419 km (0.115 R)
• M14: 11,945,240 km (0.094 R)
• M15: 12,955,026 km (0.077 R)
• M16: 14,342,097 km (0.064 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679.9

Radius: 10.6

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 2.24 AU - 3.48 AU

Year: 3225 Days

Day: 8.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 68,267,823 km

• M1: 131,796 km (0.069 R)
• M2: 633,098 km (0.083 R)
• M3: 1,896,901 km (0.046 R)
• M4: 2,365,142 km (0.094 R)
• M5: 3,555,193 km (0.12 R)
• M6: 4,036,749 km (0.089 R)
• M7: 5,589,724 km (0.07 R)
• M8: 6,075,020 km (0.099 R)
• M9: 7,007,164 km (0.055 R)
• M10: 8,269,022 km (0.071 R)
• M11: 8,828,518 km (0.038 R)
• M12: 9,190,844 km (0.12 R)
• M13: 11,028,804 km (0.099 R)
• M14: 11,449,473 km (0.034 R)
• M15: 12,684,703 km (0.103 R)
• M16: 14,550,487 km (0.107 R)
• M17: 18,055,715 km (0.079 R)
• M18: 19,298,873 km (0.059 R)
• M19: 20,724,990 km (0.106 R)
• M20: 21,757,664 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 209.1

Radius: 13.4

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 2.76 AU - 3.4 AU

Year: 3605 Days

Day: 12.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 68,267,823 km

• M1: 166,652 km (0.071 R)
• M2: 711,936 km (0.058 R)
• M3: 1,202,168 km (0.076 R)
• M4: 2,858,516 km (0.116 R)
• M5: 3,405,895 km (0.093 R)
• M6: 3,930,235 km (0.11 R)
• M7: 4,946,304 km (0.051 R)
• M8: 5,574,914 km (0.106 R)
• M9: 6,281,615 km (0.105 R)
• M10: 7,467,327 km (0.107 R)
• M11: 7,933,773 km (0.12 R)
• M12: 8,450,784 km (0.058 R)
• M13: 12,848,064 km (0.075 R)
• M14: 13,307,329 km (0.084 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 892.4

Radius: 5.1

Gravity: 34.31 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 7.72 AU - 8.14 AU

Year: 14892 Days

Day: 23 Hours

Environment

Temp: -224 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 68,267,823 km

• M1: 63,429 km (0.081 R)
• M2: 289,023 km (0.114 R)
• M3: 779,854 km (0.077 R)
• M4: 1,194,389 km (0.085 R)
• M5: 1,544,598 km (0.105 R)
• M6: 2,195,199 km (0.114 R)
• M7: 2,720,587 km (0.106 R)
• M8: 3,986,035 km (0.049 R)
• M9: 4,695,728 km (0.094 R)
• M10: 5,410,805 km (0.038 R)
• M11: 5,755,329 km (0.119 R)
• M12: 6,403,686 km (0.074 R)
• M13: 7,235,451 km (0.054 R)
• M14: 12,299,787 km (0.086 R)
• M15: 14,142,534 km (0.112 R)
• M16: 15,468,569 km (0.102 R)
• M17: 15,928,284 km (0.118 R)
• M18: 16,714,869 km (0.091 R)
• M19: 20,030,556 km (0.095 R)
• M20: 21,603,877 km (0.114 R)
• M21: 28,607,601 km (0.066 R)
• M22: 32,429,976 km (0.064 R)
• M23: 33,436,171 km (0.108 R)
• M24: 37,121,515 km (0.12 R)
• M25: 40,488,514 km (0.073 R)
• M26: 41,068,655 km (0.07 R)
• M27: 43,143,278 km (0.069 R)
• M28: 49,618,921 km (0.118 R)
• M29: 58,171,581 km (0.112 R)
• M30: 58,725,093 km (0.054 R)
• M31: 59,842,290 km (0.109 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 509 - 20,023 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit