🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.35

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.49 AU - 0.65 AU

Year: 278 Days

Day: 47.8 Hours

Environment

Temp: -123 °C

Axial Tilt: 29 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 680.8

Radius: 12.9

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.62 AU - 0.94 AU

Year: 445 Days

Day: 15 Hours

Environment

Temp: -137 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 68,254,091 km

• M1: 160,369 km (0.044 R)
• M2: 605,871 km (0.107 R)
• M3: 1,225,805 km (0.055 R)
• M4: 1,628,822 km (0.094 R)
• M5: 2,113,968 km (0.067 R)
• M6: 2,528,802 km (0.091 R)
• M7: 3,052,993 km (0.118 R)
• M8: 3,813,399 km (0.072 R)
• M9: 4,336,543 km (0.077 R)
• M10: 4,741,355 km (0.095 R)
• M11: 5,155,591 km (0.046 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 133.5

Radius: 13.8

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.02 AU - 1.1 AU

Year: 705 Days

Day: 7.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 68,254,091 km

• M1: 174,282 km (0.104 R)
• M2: 1,044,792 km (0.069 R)
• M3: 1,564,495 km (0.114 R)
• M4: 2,441,736 km (0.09 R)
• M5: 3,371,338 km (0.117 R)
• M6: 4,316,347 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.8

Radius: 9.6

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.29 AU - 1.29 AU

Year: 946 Days

Day: 7 Hours

Environment

Temp: -180 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 68,254,091 km

• M1: 119,379 km (0.099 R)
• M2: 430,243 km (0.11 R)
• M3: 783,444 km (0.057 R)
• M4: 1,149,660 km (0.109 R)
• M5: 1,815,969 km (0.091 R)
• M6: 2,171,114 km (0.059 R)
• M7: 2,756,341 km (0.079 R)
• M8: 3,388,691 km (0.119 R)
• M9: 3,872,042 km (0.1 R)
• M10: 5,083,635 km (0.112 R)
• M11: 5,564,293 km (0.103 R)
• M12: 5,934,548 km (0.11 R)
• M13: 8,014,556 km (0.078 R)
• M14: 8,411,739 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948.3

Radius: 10.6

Gravity: 8.44 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.81 AU - 1.81 AU

Year: 1572 Days

Day: 12.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 68,254,091 km

• M1: 134,788 km (0.032 R)
• M2: 523,892 km (0.078 R)
• M3: 876,045 km (0.078 R)
• M4: 1,663,379 km (0.1 R)
• M5: 2,429,021 km (0.11 R)
• M6: 3,034,742 km (0.034 R)
• M7: 3,791,558 km (0.12 R)
• M8: 4,253,217 km (0.061 R)
• M9: 4,690,043 km (0.065 R)
• M10: 5,048,180 km (0.099 R)
• M11: 6,208,910 km (0.112 R)
• M12: 6,878,660 km (0.12 R)
• M13: 7,482,586 km (0.108 R)
• M14: 8,891,200 km (0.093 R)
• M15: 9,912,205 km (0.068 R)
• M16: 10,827,595 km (0.086 R)
• M17: 11,157,159 km (0.068 R)
• M18: 11,913,825 km (0.097 R)
• M19: 12,423,654 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244.7

Radius: 15

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 2.02 AU - 2.12 AU

Year: 1923 Days

Day: 10.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 68,254,091 km

• M1: 217,067 km (0.088 R)
• M2: 706,551 km (0.095 R)
• M3: 1,229,395 km (0.055 R)
• M4: 1,771,688 km (0.083 R)
• M5: 3,706,138 km (0.093 R)
• M6: 4,539,697 km (0.082 R)
• M7: 5,175,787 km (0.103 R)
• M8: 5,660,335 km (0.111 R)
• M9: 6,331,131 km (0.119 R)
• M10: 9,472,388 km (0.031 R)
• M11: 10,579,412 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753

Radius: 10.3

Gravity: 7.1 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.8 AU - 2.9 AU

Year: 2326 Days

Day: 12.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 68,254,091 km

• M1: 128,056 km (0.113 R)
• M2: 514,617 km (0.033 R)
• M3: 995,125 km (0.119 R)
• M4: 1,534,575 km (0.096 R)
• M5: 2,578,618 km (0.082 R)
• M6: 3,660,809 km (0.042 R)
• M7: 4,081,927 km (0.106 R)
• M8: 4,752,425 km (0.106 R)
• M9: 5,792,280 km (0.086 R)
• M10: 6,447,369 km (0.074 R)
• M11: 7,658,065 km (0.063 R)
• M12: 8,578,391 km (0.087 R)
• M13: 9,535,518 km (0.094 R)
• M14: 10,113,564 km (0.092 R)
• M15: 10,830,138 km (0.106 R)
• M16: 12,154,677 km (0.09 R)
• M17: 13,095,947 km (0.056 R)
• M18: 14,835,022 km (0.082 R)
• M19: 15,219,938 km (0.027 R)
• M20: 18,488,202 km (0.069 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.6

Radius: 8.1

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 3.06 AU - 3.82 AU

Year: 4120 Days

Day: 7.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,254,091 km

• M1: 101,128 km (0.041 R)
• M2: 681,119 km (0.075 R)
• M3: 1,243,158 km (0.108 R)
• M4: 1,924,726 km (0.105 R)
• M5: 2,468,664 km (0.119 R)
• M6: 2,898,608 km (0.06 R)
• M7: 3,450,325 km (0.1 R)
• M8: 3,876,829 km (0.072 R)
• M9: 4,617,637 km (0.082 R)
• M10: 8,171,185 km (0.114 R)
• M11: 8,681,164 km (0.087 R)
• M12: 9,764,253 km (0.048 R)
• M13: 10,215,889 km (0.111 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988

Radius: 13.7

Gravity: 5.26 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 3.47 AU - 5.71 AU

Year: 6349 Days

Day: 6.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 68,254,091 km

• M1: 172,038 km (0.067 R)
• M2: 1,289,534 km (0.088 R)
• M3: 2,188,318 km (0.071 R)
• M4: 2,856,123 km (0.1 R)
• M5: 3,315,687 km (0.081 R)
• M6: 4,124,413 km (0.093 R)
• M7: 4,715,175 km (0.09 R)
• M8: 7,091,837 km (0.104 R)
• M9: 8,904,963 km (0.079 R)
• M10: 11,571,545 km (0.118 R)
• M11: 14,070,278 km (0.074 R)
• M12: 29,503,243 km (0.052 R)
• M13: 31,904,887 km (0.108 R)
• M14: 33,896,334 km (0.067 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 515

Radius: 6.4

Gravity: 12.57 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 7.49 AU - 11.97 AU

Year: 19597 Days

Day: 22.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 68,254,091 km

• M1: 81,830 km (0.108 R)
• M2: 353,649 km (0.06 R)
• M3: 710,889 km (0.066 R)
• M4: 3,422,051 km (0.093 R)
• M5: 3,970,028 km (0.085 R)
• M6: 6,250,648 km (0.113 R)
• M7: 8,348,309 km (0.093 R)
• M8: 20,583,919 km (0.055 R)
• M9: 24,686,790 km (0.079 R)
• M10: 33,184,248 km (0.077 R)
• M11: 37,944,602 km (0.09 R)
• M12: 39,627,130 km (0.042 R)
• M13: 44,972,710 km (0.088 R)
• M14: 64,638,547 km (0.099 R)
• M15: 66,229,221 km (0.118 R)
• M16: 67,034,357 km (0.089 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 433 - 13,395 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit