🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.2 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.6

Radius: 14.2

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 2.05 AU - 2.75 AU

Year: 2479 Days

Day: 14.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,004,747 km

• M1: 228,735 km (0.114 R)
• M2: 900,729 km (0.098 R)
• M3: 1,414,149 km (0.091 R)
• M4: 2,105,291 km (0.054 R)
• M5: 2,669,424 km (0.114 R)
• M6: 3,524,227 km (0.082 R)
• M7: 5,489,195 km (0.037 R)
• M8: 7,508,766 km (0.116 R)
• M9: 8,343,971 km (0.111 R)
• M10: 10,169,065 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491.6

Radius: 14.6

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.74 AU - 2.88 AU

Year: 3141 Days

Day: 14.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 27,004,747 km

• M1: 181,612 km (0.089 R)
• M2: 755,619 km (0.1 R)
• M3: 1,338,153 km (0.11 R)
• M4: 1,832,574 km (0.116 R)
• M5: 2,564,706 km (0.05 R)
• M6: 3,540,682 km (0.102 R)
• M7: 4,299,742 km (0.062 R)
• M8: 5,260,310 km (0.069 R)
• M9: 6,038,518 km (0.093 R)
• M10: 6,950,018 km (0.091 R)
• M11: 8,208,585 km (0.074 R)
• M12: 10,393,462 km (0.099 R)
• M13: 10,857,514 km (0.094 R)
• M14: 11,744,630 km (0.116 R)
• M15: 13,031,471 km (0.059 R)
• M16: 14,080,152 km (0.111 R)
• M17: 19,478,989 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 312.8

Radius: 14.2

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 2.51 AU - 3.53 AU

Year: 3500 Days

Day: 8.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,004,747 km

• M1: 176,525 km (0.102 R)
• M2: 1,220,719 km (0.077 R)
• M3: 1,765,554 km (0.069 R)
• M4: 2,312,484 km (0.08 R)
• M5: 3,468,427 km (0.081 R)
• M6: 4,256,957 km (0.091 R)
• M7: 5,735,134 km (0.069 R)
• M8: 15,207,222 km (0.062 R)
• M9: 16,490,772 km (0.085 R)
• M10: 18,330,975 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154.6

Radius: 12.4

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 4.22 AU - 6.2 AU

Year: 7930 Days

Day: 13.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 27,004,747 km

• M1: 160,369 km (0.095 R)
• M2: 747,840 km (0.113 R)
• M3: 2,572,934 km (0.106 R)
• M4: 4,221,203 km (0.082 R)
• M5: 4,707,845 km (0.115 R)
• M6: 5,684,270 km (0.095 R)
• M7: 6,456,794 km (0.095 R)
• M8: 7,201,193 km (0.081 R)
• M9: 7,762,484 km (0.11 R)
• M10: 9,085,527 km (0.042 R)
• M11: 9,506,645 km (0.108 R)
• M12: 13,855,156 km (0.107 R)
• M13: 17,261,949 km (0.113 R)
• M14: 17,909,259 km (0.057 R)
• M15: 18,879,700 km (0.108 R)
• M16: 20,531,111 km (0.119 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 61.3

Radius: 7.5

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 5.91 AU - 6.81 AU

Year: 10696 Days

Day: 19.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 27,004,747 km

• M1: 95,144 km (0.064 R)
• M2: 557,701 km (0.104 R)
• M3: 1,357,601 km (0.1 R)
• M4: 1,982,471 km (0.081 R)
• M5: 2,338,514 km (0.087 R)
• M6: 2,918,206 km (0.083 R)
• M7: 3,474,411 km (0.067 R)
• M8: 3,952,077 km (0.086 R)
• M9: 5,087,375 km (0.082 R)
• M10: 5,703,419 km (0.055 R)
• M11: 6,368,232 km (0.05 R)
• M12: 7,333,587 km (0.084 R)
• M13: 8,255,558 km (0.079 R)
• M14: 8,638,080 km (0.117 R)
• M15: 9,438,578 km (0.101 R)
• M16: 13,470,690 km (0.034 R)
• M17: 18,287,442 km (0.079 R)
• M18: 18,937,744 km (0.059 R)
• M19: 21,629,010 km (0.082 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 568.4

Radius: 4.4

Gravity: 29.36 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 8.42 AU - 10.72 AU

Year: 19742 Days

Day: 16.4 Hours

Environment

Temp: -240 °C

Axial Tilt: 82.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 27,004,747 km

• M1: 54,753 km (0.078 R)
• M2: 206,744 km (0.079 R)
• M3: 440,865 km (0.112 R)
• M4: 638,484 km (0.047 R)
• M5: 1,109,119 km (0.068 R)
• M6: 2,185,326 km (0.117 R)
• M7: 2,375,614 km (0.108 R)
• M8: 3,880,270 km (0.088 R)
• M9: 4,354,046 km (0.109 R)
• M10: 4,520,249 km (0.08 R)
• M11: 6,129,474 km (0.119 R)
• M12: 7,268,661 km (0.11 R)
• M13: 8,185,397 km (0.072 R)
• M14: 8,961,660 km (0.052 R)
• M15: 9,617,198 km (0.095 R)
• M16: 10,840,311 km (0.085 R)
• M17: 11,647,241 km (0.115 R)
• M18: 12,965,947 km (0.063 R)
• M19: 13,520,207 km (0.102 R)
• M20: 15,201,537 km (0.056 R)
• M21: 15,974,210 km (0.081 R)
• M22: 26,381,884 km (0.111 R)
• M23: 27,158,297 km (0.096 R)
• M24: 27,495,789 km (0.118 R)
• M25: 34,317,752 km (0.069 R)
• M26: 38,257,112 km (0.103 R)
• M27: 42,638,535 km (0.058 R)
• M28: 43,399,838 km (0.078 R)
• M29: 44,949,672 km (0.051 R)
• M30: 51,689,804 km (0.098 R)
• M31: 60,974,596 km (0.075 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 101.6

Radius: 6

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 8.73 AU - 11.51 AU

Year: 21468 Days

Day: 19.8 Hours

Environment

Temp: -240 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 27,004,747 km

• M1: 74,649 km (0.113 R)
• M2: 757,264 km (0.025 R)
• M3: 1,167,761 km (0.103 R)
• M4: 1,442,871 km (0.064 R)
• M5: 1,645,128 km (0.101 R)
• M6: 1,881,792 km (0.112 R)
• M7: 2,141,194 km (0.108 R)
• M8: 2,333,128 km (0.06 R)
• M9: 3,264,824 km (0.113 R)
• M10: 3,764,032 km (0.117 R)
• M11: 4,422,861 km (0.054 R)
• M12: 5,535,420 km (0.098 R)
• M13: 6,314,377 km (0.082 R)
• M14: 7,011,203 km (0.102 R)
• M15: 7,280,330 km (0.08 R)
• M16: 8,004,384 km (0.047 R)
• M17: 9,548,084 km (0.095 R)
• M18: 10,120,146 km (0.03 R)
• M19: 12,303,078 km (0.118 R)
• M20: 15,288,454 km (0.029 R)
• M21: 16,947,943 km (0.1 R)
• M22: 24,001,782 km (0.09 R)
• M23: 31,420,789 km (0.058 R)
• M24: 32,470,218 km (0.087 R)
• M25: 38,425,111 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 24

Radius: 3.8

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 7.94 AU - 13 AU

Year: 22592 Days

Day: 21 Hours

Environment

Temp: -241 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 27,004,747 km

• M1: 87,216 km (0.107 R)
• M2: 566,228 km (0.046 R)
• M3: 1,304,942 km (0.08 R)
• M4: 2,131,321 km (0.075 R)
• M5: 2,359,308 km (0.11 R)
• M6: 3,581,223 km (0.094 R)
• M7: 10,362,794 km (0.077 R)
• M8: 12,889,203 km (0.074 R)
• M9: 13,137,535 km (0.062 R)
• M10: 14,586,840 km (0.085 R)
• M11: 14,910,719 km (0.082 R)
• M12: 15,184,333 km (0.05 R)
• M13: 22,223,960 km (0.053 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 329 - 19,456 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit