🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.45

Radius: 1.43

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.51 AU - 0.81 AU

Year: 341 Days

Day: 12 Hours

Environment

Temp: -136 °C

Axial Tilt: 39.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 419.1

Radius: 9.5

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.65 AU - 0.73 AU

Year: 364 Days

Day: 8.1 Hours

Environment

Temp: -146 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,326,837 km

• M1: 118,332 km (0.12 R)
• M2: 457,171 km (0.045 R)
• M3: 819,198 km (0.111 R)
• M4: 1,259,764 km (0.089 R)
• M5: 1,743,563 km (0.101 R)
• M6: 2,160,941 km (0.112 R)
• M7: 2,554,533 km (0.049 R)
• M8: 2,878,263 km (0.102 R)
• M9: 3,229,668 km (0.118 R)
• M10: 3,609,497 km (0.105 R)
• M11: 4,104,816 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 890.7

Radius: 13.1

Gravity: 5.19 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.68 AU - 0.92 AU

Year: 455 Days

Day: 14.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 72,326,837 km

• M1: 162,912 km (0.109 R)
• M2: 683,662 km (0.112 R)
• M3: 1,114,953 km (0.087 R)
• M4: 1,974,094 km (0.094 R)
• M5: 2,461,633 km (0.094 R)
• M6: 3,040,876 km (0.072 R)
• M7: 3,505,677 km (0.106 R)
• M8: 4,157,474 km (0.091 R)
• M9: 5,178,480 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387.6

Radius: 10.3

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.2 AU - 1.98 AU

Year: 1275 Days

Day: 14.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,326,837 km

• M1: 128,205 km (0.093 R)
• M2: 477,965 km (0.055 R)
• M3: 932,892 km (0.102 R)
• M4: 1,287,290 km (0.07 R)
• M5: 1,680,582 km (0.077 R)
• M6: 2,185,026 km (0.071 R)
• M7: 3,177,010 km (0.078 R)
• M8: 3,499,543 km (0.094 R)
• M9: 3,906,000 km (0.052 R)
• M10: 4,549,122 km (0.085 R)
• M11: 5,071,966 km (0.08 R)
• M12: 6,152,212 km (0.115 R)
• M13: 6,589,038 km (0.104 R)
• M14: 7,427,833 km (0.094 R)
• M15: 7,822,772 km (0.041 R)
• M16: 8,309,863 km (0.096 R)
• M17: 9,631,410 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.8

Radius: 8.3

Gravity: 11.6 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 1.6 AU - 1.9 AU

Year: 1472 Days

Day: 7.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 46.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 72,326,837 km

• M1: 110,852 km (0.039 R)
• M2: 458,069 km (0.114 R)
• M3: 743,801 km (0.051 R)
• M4: 1,137,692 km (0.092 R)
• M5: 1,676,394 km (0.099 R)
• M6: 1,977,085 km (0.109 R)
• M7: 2,265,211 km (0.11 R)
• M8: 2,688,872 km (0.069 R)
• M9: 3,627,748 km (0.041 R)
• M10: 3,919,763 km (0.074 R)
• M11: 4,630,204 km (0.112 R)
• M12: 5,579,402 km (0.038 R)
• M13: 5,899,691 km (0.088 R)
• M14: 6,378,404 km (0.069 R)
• M15: 6,652,767 km (0.114 R)
• M16: 7,144,944 km (0.055 R)
• M17: 7,773,255 km (0.098 R)
• M18: 8,319,586 km (0.062 R)
• M19: 8,647,355 km (0.057 R)
• M20: 11,406,239 km (0.092 R)
• M21: 11,848,451 km (0.079 R)
• M22: 14,065,042 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354.4

Radius: 11.6

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 2.21 AU - 2.97 AU

Year: 2650 Days

Day: 11.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,326,837 km

• M1: 144,212 km (0.038 R)
• M2: 556,354 km (0.112 R)
• M3: 1,309,879 km (0.05 R)
• M4: 2,381,897 km (0.045 R)
• M5: 2,747,514 km (0.083 R)
• M6: 3,197,954 km (0.114 R)
• M7: 3,628,048 km (0.104 R)
• M8: 4,424,955 km (0.039 R)
• M9: 4,897,236 km (0.104 R)
• M10: 5,991,844 km (0.116 R)
• M11: 7,439,053 km (0.058 R)
• M12: 7,812,898 km (0.079 R)
• M13: 8,381,819 km (0.055 R)
• M14: 9,535,667 km (0.081 R)
• M15: 10,792,439 km (0.086 R)
• M16: 11,197,700 km (0.105 R)
• M17: 12,880,526 km (0.073 R)
• M18: 14,502,766 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904.2

Radius: 12.4

Gravity: 5.88 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 2.64 AU - 2.66 AU

Year: 2743 Days

Day: 9.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,326,837 km

• M1: 158,125 km (0.063 R)
• M2: 588,069 km (0.09 R)
• M3: 1,140,385 km (0.104 R)
• M4: 1,564,943 km (0.074 R)
• M5: 2,189,814 km (0.086 R)
• M6: 2,795,386 km (0.073 R)
• M7: 3,529,612 km (0.11 R)
• M8: 4,025,230 km (0.098 R)
• M9: 5,458,677 km (0.095 R)
• M10: 6,014,283 km (0.049 R)
• M11: 6,873,274 km (0.117 R)
• M12: 7,779,837 km (0.105 R)
• M13: 9,565,587 km (0.102 R)
• M14: 12,849,260 km (0.071 R)
• M15: 14,174,548 km (0.088 R)
• M16: 14,569,486 km (0.086 R)
• M17: 18,404,128 km (0.103 R)
• M18: 19,172,762 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 692

Radius: 5.8

Gravity: 20.57 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 7.19 AU - 11.69 AU

Year: 18441 Days

Day: 15.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 72,326,837 km

• M1: 72,854 km (0.043 R)
• M2: 253,868 km (0.034 R)
• M3: 599,738 km (0.103 R)
• M4: 831,016 km (0.12 R)
• M5: 1,313,021 km (0.105 R)
• M6: 1,494,333 km (0.077 R)
• M7: 2,887,089 km (0.109 R)
• M8: 3,277,540 km (0.117 R)
• M9: 5,236,374 km (0.11 R)
• M10: 5,579,701 km (0.077 R)
• M11: 6,525,459 km (0.107 R)
• M12: 6,878,211 km (0.097 R)
• M13: 9,267,588 km (0.059 R)
• M14: 12,357,682 km (0.087 R)
• M15: 12,761,147 km (0.111 R)
• M16: 13,243,002 km (0.115 R)
• M17: 14,389,819 km (0.089 R)
• M18: 15,369,087 km (0.07 R)
• M19: 16,152,082 km (0.084 R)
• M20: 17,375,942 km (0.092 R)
• M21: 18,485,510 km (0.074 R)
• M22: 20,376,576 km (0.111 R)
• M23: 22,293,823 km (0.103 R)
• M24: 24,119,365 km (0.075 R)
• M25: 25,823,734 km (0.054 R)
• M26: 28,528,464 km (0.064 R)
• M27: 34,757,868 km (0.086 R)
• M28: 35,967,816 km (0.105 R)
• M29: 36,514,447 km (0.065 R)
• M30: 37,484,290 km (0.09 R)
• M31: 38,899,486 km (0.096 R)
• M32: 41,685,746 km (0.087 R)
• M33: 46,836,401 km (0.056 R)
• M34: 48,809,746 km (0.095 R)
• M35: 60,277,470 km (0.073 R)
• M36: 61,826,107 km (0.107 R)
• M37: 62,217,306 km (0.08 R)
• M38: 67,662,219 km (0.077 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 511 - 15,517 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit