🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.6 AU - 0.62 AU

Year: 313 Days

Day: 25.8 Hours

Environment

Temp: -124 °C

Axial Tilt: 11.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839.6

Radius: 9.6

Gravity: 9.11 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.71 AU - 0.81 AU

Year: 435 Days

Day: 12.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,758,644 km

• M1: 119,379 km (0.084 R)
• M2: 526,585 km (0.119 R)
• M3: 851,361 km (0.094 R)
• M4: 1,283,849 km (0.036 R)
• M5: 1,653,056 km (0.092 R)
• M6: 1,982,321 km (0.083 R)
• M7: 2,299,618 km (0.1 R)
• M8: 3,329,001 km (0.081 R)
• M9: 3,689,831 km (0.1 R)
• M10: 4,008,325 km (0.107 R)
• M11: 4,505,738 km (0.05 R)
• M12: 5,140,183 km (0.092 R)
• M13: 5,589,874 km (0.042 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948.4

Radius: 14.3

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.84 AU - 0.84 AU

Year: 505 Days

Day: 11.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 65,758,644 km

• M1: 177,872 km (0.086 R)
• M2: 744,100 km (0.05 R)
• M3: 1,349,822 km (0.116 R)
• M4: 2,568,595 km (0.107 R)
• M5: 3,206,331 km (0.096 R)
• M6: 3,906,748 km (0.091 R)
• M7: 4,644,565 km (0.097 R)
• M8: 5,777,769 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 337.4

Radius: 14.3

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.92 AU - 2.68 AU

Year: 2288 Days

Day: 10.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,758,644 km

• M1: 178,321 km (0.077 R)
• M2: 1,377,198 km (0.082 R)
• M3: 1,863,690 km (0.077 R)
• M4: 2,355,418 km (0.076 R)
• M5: 2,808,700 km (0.075 R)
• M6: 4,000,546 km (0.091 R)
• M7: 5,036,212 km (0.119 R)
• M8: 5,662,728 km (0.087 R)
• M9: 6,172,259 km (0.028 R)
• M10: 6,942,388 km (0.102 R)
• M11: 9,610,466 km (0.077 R)
• M12: 10,304,301 km (0.116 R)
• M13: 13,139,031 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 761.7

Radius: 10.6

Gravity: 6.78 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 2.06 AU - 3.22 AU

Year: 2814 Days

Day: 6.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 65,758,644 km

• M1: 131,796 km (0.063 R)
• M2: 504,294 km (0.096 R)
• M3: 893,398 km (0.098 R)
• M4: 1,369,718 km (0.099 R)
• M5: 3,026,515 km (0.101 R)
• M6: 3,413,524 km (0.116 R)
• M7: 3,754,757 km (0.104 R)
• M8: 4,181,709 km (0.119 R)
• M9: 5,635,352 km (0.083 R)
• M10: 6,448,865 km (0.067 R)
• M11: 6,795,483 km (0.056 R)
• M12: 7,781,184 km (0.084 R)
• M13: 8,824,330 km (0.063 R)
• M14: 9,216,276 km (0.117 R)
• M15: 11,436,159 km (0.054 R)
• M16: 11,816,736 km (0.032 R)
• M17: 14,183,524 km (0.111 R)
• M18: 16,580,381 km (0.067 R)
• M19: 17,621,881 km (0.072 R)
• M20: 18,301,654 km (0.118 R)
• M21: 18,648,123 km (0.052 R)
• M22: 19,895,320 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 586.2

Radius: 11.9

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 3.59 AU - 4.01 AU

Year: 4859 Days

Day: 11 Hours

Environment

Temp: -200 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 65,758,644 km

• M1: 148,551 km (0.091 R)
• M2: 539,600 km (0.106 R)
• M3: 997,818 km (0.096 R)
• M4: 1,542,354 km (0.104 R)
• M5: 1,938,788 km (0.073 R)
• M6: 2,311,138 km (0.078 R)
• M7: 2,836,076 km (0.093 R)
• M8: 3,300,727 km (0.107 R)
• M9: 4,905,464 km (0.112 R)
• M10: 5,836,262 km (0.114 R)
• M11: 6,561,662 km (0.11 R)
• M12: 8,791,568 km (0.108 R)
• M13: 10,332,575 km (0.117 R)
• M14: 12,333,896 km (0.094 R)
• M15: 13,838,850 km (0.106 R)
• M16: 14,744,217 km (0.112 R)
• M17: 15,462,735 km (0.119 R)
• M18: 16,672,832 km (0.108 R)
• M19: 20,477,705 km (0.116 R)
• M20: 23,835,728 km (0.034 R)
• M21: 25,370,153 km (0.115 R)
• M22: 27,960,590 km (0.095 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 609.3

Radius: 6

Gravity: 16.93 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 7.58 AU - 9.96 AU

Year: 17038 Days

Day: 20.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 65,758,644 km

• M1: 74,649 km (0.078 R)
• M2: 592,258 km (0.113 R)
• M3: 832,811 km (0.113 R)
• M4: 1,176,587 km (0.105 R)
• M5: 2,329,388 km (0.115 R)
• M6: 3,164,743 km (0.091 R)
• M7: 3,510,763 km (0.068 R)
• M8: 4,061,582 km (0.113 R)
• M9: 5,518,665 km (0.083 R)
• M10: 7,945,143 km (0.039 R)
• M11: 8,736,516 km (0.087 R)
• M12: 10,132,862 km (0.08 R)
• M13: 10,648,975 km (0.08 R)
• M14: 11,671,626 km (0.115 R)
• M15: 12,626,958 km (0.11 R)
• M16: 17,132,397 km (0.115 R)
• M17: 19,565,756 km (0.07 R)
• M18: 22,700,878 km (0.106 R)
• M19: 27,785,112 km (0.072 R)
• M20: 34,084,528 km (0.088 R)
• M21: 38,040,644 km (0.052 R)
• M22: 44,836,427 km (0.096 R)
• M23: 47,481,018 km (0.084 R)
• M24: 49,084,258 km (0.05 R)
• M25: 57,464,282 km (0.11 R)
• M26: 60,394,306 km (0.094 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 396 - 14,886 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit