🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409

Radius: 11.3

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.4 AU - 0.62 AU

Year: 251 Days

Day: 14.7 Hours

Environment

Temp: -145 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,612,735 km

• M1: 140,472 km (0.081 R)
• M2: 512,672 km (0.071 R)
• M3: 891,155 km (0.113 R)
• M4: 1,280,408 km (0.095 R)
• M5: 1,735,934 km (0.114 R)
• M6: 2,210,458 km (0.09 R)
• M7: 2,636,662 km (0.085 R)
• M8: 3,016,940 km (0.073 R)
• M9: 3,434,019 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960.9

Radius: 12

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.48 AU - 0.54 AU

Year: 251 Days

Day: 10.4 Hours

Environment

Temp: -138 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,612,735 km

• M1: 149,299 km (0.097 R)
• M2: 568,921 km (0.115 R)
• M3: 1,078,301 km (0.117 R)
• M4: 1,477,279 km (0.097 R)
• M5: 2,043,956 km (0.113 R)
• M6: 2,632,923 km (0.084 R)
• M7: 3,185,537 km (0.044 R)
• M8: 3,981,398 km (0.069 R)
• M9: 4,368,407 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.4

Radius: 8

Gravity: 10.32 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.62 AU - 0.8 AU

Year: 413 Days

Day: 8.6 Hours

Environment

Temp: -157 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 37,612,735 km

• M1: 99,483 km (0.084 R)
• M2: 367,562 km (0.107 R)
• M3: 863,030 km (0.094 R)
• M4: 1,134,101 km (0.104 R)
• M5: 1,816,417 km (0.073 R)
• M6: 2,297,225 km (0.073 R)
• M7: 2,577,871 km (0.077 R)
• M8: 3,746,679 km (0.11 R)
• M9: 5,124,924 km (0.039 R)
• M10: 5,378,642 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.4

Radius: 13.2

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.71 AU - 0.83 AU

Year: 466 Days

Day: 5.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,612,735 km

• M1: 165,006 km (0.084 R)
• M2: 579,093 km (0.032 R)
• M3: 1,032,674 km (0.114 R)
• M4: 1,497,774 km (0.098 R)
• M5: 1,964,818 km (0.085 R)
• M6: 2,491,553 km (0.066 R)
• M7: 2,947,676 km (0.049 R)
• M8: 3,581,672 km (0.099 R)
• M9: 4,235,565 km (0.063 R)
• M10: 4,680,020 km (0.071 R)
• M11: 5,397,641 km (0.083 R)
• M12: 6,080,106 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.2

Radius: 12.5

Gravity: 5.31 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.72 AU - 0.92 AU

Year: 513 Days

Day: 9.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 37,612,735 km

• M1: 157,227 km (0.109 R)
• M2: 623,823 km (0.119 R)
• M3: 1,038,359 km (0.051 R)
• M4: 1,713,045 km (0.118 R)
• M5: 2,183,531 km (0.111 R)
• M6: 3,111,486 km (0.065 R)
• M7: 4,345,818 km (0.106 R)
• M8: 5,420,978 km (0.075 R)
• M9: 6,030,739 km (0.079 R)
• M10: 6,989,661 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 248.1

Radius: 12

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.71 AU - 1.03 AU

Year: 560 Days

Day: 11.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 37,612,735 km

• M1: 149,299 km (0.115 R)
• M2: 548,725 km (0.108 R)
• M3: 1,218,475 km (0.076 R)
• M4: 1,675,047 km (0.082 R)
• M5: 2,180,090 km (0.093 R)
• M6: 3,593,341 km (0.045 R)
• M7: 4,002,341 km (0.07 R)
• M8: 4,702,609 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 995.6

Radius: 11

Gravity: 8.23 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.14 AU - 1.5 AU

Year: 1047 Days

Day: 10.9 Hours

Environment

Temp: -187 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 37,612,735 km

• M1: 136,732 km (0.107 R)
• M2: 683,812 km (0.051 R)
• M3: 1,045,689 km (0.082 R)
• M4: 1,765,404 km (0.114 R)
• M5: 2,241,874 km (0.115 R)
• M6: 2,610,483 km (0.065 R)
• M7: 3,006,020 km (0.089 R)
• M8: 3,426,390 km (0.108 R)
• M9: 4,191,433 km (0.054 R)
• M10: 5,086,776 km (0.053 R)
• M11: 5,838,655 km (0.083 R)
• M12: 6,195,745 km (0.069 R)
• M13: 6,639,004 km (0.093 R)
• M14: 7,330,595 km (0.114 R)
• M15: 7,694,118 km (0.074 R)
• M16: 8,069,758 km (0.1 R)
• M17: 10,456,592 km (0.099 R)
• M18: 10,951,611 km (0.116 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199.9

Radius: 8.2

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 2.69 AU - 3.11 AU

Year: 3409 Days

Day: 11.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 37,612,735 km

• M1: 102,624 km (0.098 R)
• M2: 395,387 km (0.053 R)
• M3: 815,159 km (0.099 R)
• M4: 1,243,906 km (0.075 R)
• M5: 1,681,779 km (0.108 R)
• M6: 2,488,710 km (0.069 R)
• M7: 2,751,105 km (0.116 R)
• M8: 4,295,703 km (0.096 R)
• M9: 8,445,548 km (0.12 R)
• M10: 9,634,402 km (0.08 R)
• M11: 10,008,397 km (0.117 R)
• M12: 11,526,217 km (0.118 R)
• M13: 12,300,535 km (0.037 R)
• M14: 12,822,033 km (0.106 R)
• M15: 14,387,575 km (0.118 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 784.1

Radius: 13.3

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 3.89 AU - 4.69 AU

Year: 6133 Days

Day: 8.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 37,612,735 km

• M1: 165,455 km (0.043 R)
• M2: 813,364 km (0.067 R)
• M3: 1,710,203 km (0.07 R)
• M4: 2,173,807 km (0.103 R)
• M5: 2,703,533 km (0.119 R)
• M6: 3,193,017 km (0.039 R)
• M7: 4,275,956 km (0.117 R)
• M8: 5,231,587 km (0.064 R)
• M9: 5,838,954 km (0.113 R)
• M10: 6,459,038 km (0.108 R)
• M11: 7,415,866 km (0.102 R)
• M12: 8,303,430 km (0.088 R)
• M13: 9,610,616 km (0.04 R)
• M14: 14,884,539 km (0.049 R)
• M15: 17,198,070 km (0.062 R)
• M16: 18,821,357 km (0.067 R)
• M17: 22,843,744 km (0.068 R)
• M18: 25,565,678 km (0.105 R)
• M19: 27,138,251 km (0.09 R)
• M20: 33,457,863 km (0.058 R)
• M21: 33,973,228 km (0.083 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 162.7

Radius: 5

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 5.75 AU - 9.31 AU

Year: 14263 Days

Day: 15.5 Hours

Environment

Temp: -239 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,612,735 km

• M1: 98,585 km (0.096 R)
• M2: 281,244 km (0.064 R)
• M3: 1,658,442 km (0.102 R)
• M4: 2,593,877 km (0.03 R)
• M5: 4,480,007 km (0.066 R)
• M6: 5,251,184 km (0.104 R)
• M7: 5,652,556 km (0.089 R)
• M8: 8,882,224 km (0.115 R)
• M9: 13,276,063 km (0.062 R)
• M10: 14,730,154 km (0.103 R)
• M11: 23,946,430 km (0.085 R)
• M12: 29,207,039 km (0.096 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 483 - 13,867 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit