🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.3

Radius: 12.6

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.68 AU - 0.82 AU

Year: 426 Days

Day: 7.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,254,900 km

• M1: 156,779 km (0.119 R)
• M2: 552,465 km (0.086 R)
• M3: 1,003,203 km (0.093 R)
• M4: 1,454,091 km (0.065 R)
• M5: 2,070,135 km (0.094 R)
• M6: 2,492,151 km (0.045 R)
• M7: 3,120,612 km (0.073 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418.2

Radius: 12.9

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 1.13 AU - 1.29 AU

Year: 873 Days

Day: 7.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,254,900 km

• M1: 160,519 km (0.046 R)
• M2: 658,530 km (0.093 R)
• M3: 1,219,223 km (0.105 R)
• M4: 2,168,571 km (0.076 R)
• M5: 2,759,333 km (0.076 R)
• M6: 3,249,116 km (0.051 R)
• M7: 4,516,360 km (0.048 R)
• M8: 5,468,550 km (0.114 R)
• M9: 6,327,392 km (0.091 R)
• M10: 7,956,064 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 398.5

Radius: 8.7

Gravity: 5.26 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 1.06 AU - 1.72 AU

Year: 1075 Days

Day: 7.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,254,900 km

• M1: 108,309 km (0.05 R)
• M2: 382,223 km (0.107 R)
• M3: 693,237 km (0.11 R)
• M4: 983,905 km (0.083 R)
• M5: 1,461,721 km (0.038 R)
• M6: 2,666,432 km (0.067 R)
• M7: 3,226,976 km (0.078 R)
• M8: 4,350,156 km (0.07 R)
• M9: 4,633,495 km (0.087 R)
• M10: 5,054,762 km (0.107 R)
• M11: 6,014,732 km (0.063 R)
• M12: 7,651,632 km (0.108 R)
• M13: 8,016,651 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.2

Radius: 13.3

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.64 AU - 2.66 AU

Year: 2068 Days

Day: 5.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 40,254,900 km

• M1: 169,195 km (0.113 R)
• M2: 653,593 km (0.067 R)
• M3: 1,248,095 km (0.051 R)
• M4: 1,880,894 km (0.111 R)
• M5: 2,618,860 km (0.064 R)
• M6: 3,196,159 km (0.088 R)
• M7: 3,876,829 km (0.04 R)
• M8: 4,917,880 km (0.063 R)
• M9: 5,383,429 km (0.06 R)
• M10: 6,137,402 km (0.065 R)
• M11: 7,981,346 km (0.095 R)
• M12: 8,726,792 km (0.116 R)
• M13: 10,282,011 km (0.101 R)
• M14: 11,973,664 km (0.092 R)
• M15: 13,437,330 km (0.094 R)
• M16: 16,978,311 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 681.5

Radius: 12.7

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 2.12 AU - 2.84 AU

Year: 2562 Days

Day: 6.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,254,900 km

• M1: 158,125 km (0.085 R)
• M2: 1,119,890 km (0.096 R)
• M3: 1,516,474 km (0.056 R)
• M4: 2,107,834 km (0.03 R)
• M5: 3,239,991 km (0.026 R)
• M6: 4,418,523 km (0.08 R)
• M7: 4,922,219 km (0.091 R)
• M8: 7,068,051 km (0.109 R)
• M9: 9,138,635 km (0.102 R)
• M10: 10,636,708 km (0.114 R)
• M11: 12,040,085 km (0.072 R)
• M12: 13,518,262 km (0.119 R)
• M13: 14,254,433 km (0.112 R)
• M14: 17,308,474 km (0.119 R)
• M15: 17,956,980 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83.5

Radius: 15

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 2.88 AU - 3.02 AU

Year: 3324 Days

Day: 10 Hours

Environment

Temp: -210 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,254,900 km

• M1: 186,848 km (0.094 R)
• M2: 867,368 km (0.11 R)
• M3: 1,466,358 km (0.108 R)
• M4: 4,995,073 km (0.052 R)
• M5: 5,675,294 km (0.063 R)
• M6: 7,346,452 km (0.094 R)
• M7: 9,093,456 km (0.054 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 952.2

Radius: 14.5

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 2.5 AU - 4.1 AU

Year: 3933 Days

Day: 13.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 40,254,900 km

• M1: 180,265 km (0.045 R)
• M2: 754,572 km (0.117 R)
• M3: 1,253,032 km (0.111 R)
• M4: 1,746,106 km (0.1 R)
• M5: 2,340,010 km (0.09 R)
• M6: 2,815,282 km (0.107 R)
• M7: 3,811,604 km (0.118 R)
• M8: 4,673,437 km (0.087 R)
• M9: 7,349,145 km (0.097 R)
• M10: 8,346,514 km (0.114 R)
• M11: 9,152,398 km (0.099 R)
• M12: 10,742,174 km (0.06 R)
• M13: 14,302,155 km (0.097 R)
• M14: 15,970,769 km (0.08 R)
• M15: 16,972,028 km (0.115 R)
• M16: 17,952,343 km (0.113 R)
• M17: 20,499,995 km (0.064 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 498.1

Radius: 11.1

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 3.65 AU - 3.67 AU

Year: 4593 Days

Day: 6.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 116.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 40,254,900 km

• M1: 143,764 km (0.083 R)
• M2: 536,757 km (0.096 R)
• M3: 1,640,341 km (0.076 R)
• M4: 2,402,243 km (0.119 R)
• M5: 2,890,680 km (0.102 R)
• M6: 3,543,525 km (0.099 R)
• M7: 3,959,257 km (0.109 R)
• M8: 4,430,790 km (0.093 R)
• M9: 5,300,253 km (0.073 R)
• M10: 6,103,743 km (0.042 R)
• M11: 7,745,729 km (0.105 R)
• M12: 8,341,428 km (0.098 R)
• M13: 10,355,015 km (0.032 R)
• M14: 11,386,044 km (0.036 R)
• M15: 12,064,320 km (0.09 R)
• M16: 12,484,092 km (0.096 R)
• M17: 12,865,417 km (0.101 R)
• M18: 14,107,528 km (0.055 R)
• M19: 15,811,897 km (0.064 R)
• M20: 16,315,144 km (0.113 R)
• M21: 19,625,595 km (0.113 R)
• M22: 20,535,001 km (0.097 R)
• M23: 23,503,621 km (0.084 R)
• M24: 24,159,458 km (0.095 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.1

Radius: 12.4

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 5.05 AU - 6.35 AU

Year: 8927 Days

Day: 10.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,254,900 km

• M1: 154,235 km (0.063 R)
• M2: 722,558 km (0.073 R)
• M3: 1,258,716 km (0.077 R)
• M4: 1,744,311 km (0.097 R)
• M5: 2,979,092 km (0.088 R)
• M6: 4,344,173 km (0.047 R)
• M7: 4,959,169 km (0.067 R)
• M8: 5,923,776 km (0.089 R)
• M9: 7,009,558 km (0.064 R)
• M10: 8,141,266 km (0.072 R)
• M11: 10,814,879 km (0.09 R)
• M12: 11,217,746 km (0.08 R)
• M13: 14,265,503 km (0.068 R)
• M14: 20,075,885 km (0.113 R)
• M15: 25,218,162 km (0.106 R)
• M16: 28,519,338 km (0.092 R)
• M17: 29,387,604 km (0.114 R)
• M18: 33,781,144 km (0.114 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 267 - 18,957 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit