🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.24

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.47 AU - 0.61 AU

Year: 260 Days

Day: 42.7 Hours

Environment

Temp: -129 °C

Axial Tilt: 27.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.1

Radius: 10.5

Gravity: 7.66 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.66 AU - 0.8 AU

Year: 409 Days

Day: 14.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 34,270,413 km

• M1: 130,599 km (0.079 R)
• M2: 493,075 km (0.068 R)
• M3: 863,629 km (0.108 R)
• M4: 1,307,785 km (0.093 R)
• M5: 1,645,128 km (0.08 R)
• M6: 2,178,743 km (0.089 R)
• M7: 2,560,068 km (0.074 R)
• M8: 2,953,361 km (0.102 R)
• M9: 4,062,629 km (0.085 R)
• M10: 5,331,519 km (0.071 R)
• M11: 5,907,022 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.2

Radius: 8.1

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.02 AU - 1.06 AU

Year: 696 Days

Day: 9.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 34,270,413 km

• M1: 100,829 km (0.09 R)
• M2: 421,866 km (0.12 R)
• M3: 674,238 km (0.057 R)
• M4: 1,296,714 km (0.068 R)
• M5: 1,578,258 km (0.116 R)
• M6: 1,845,439 km (0.059 R)
• M7: 2,579,965 km (0.056 R)
• M8: 2,986,572 km (0.111 R)
• M9: 3,459,600 km (0.102 R)
• M10: 4,021,939 km (0.101 R)
• M11: 4,367,809 km (0.09 R)
• M12: 4,703,357 km (0.104 R)
• M13: 5,677,538 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969

Radius: 8.4

Gravity: 13.73 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.21 AU - 1.31 AU

Year: 928 Days

Day: 9 Hours

Environment

Temp: -179 °C

Axial Tilt: 106.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 34,270,413 km

• M1: 104,569 km (0.119 R)
• M2: 411,394 km (0.107 R)
• M3: 972,985 km (0.082 R)
• M4: 1,275,172 km (0.117 R)
• M5: 1,777,223 km (0.119 R)
• M6: 2,074,623 km (0.119 R)
• M7: 3,035,640 km (0.063 R)
• M8: 3,463,939 km (0.113 R)
• M9: 3,835,091 km (0.071 R)
• M10: 4,459,513 km (0.079 R)
• M11: 4,768,283 km (0.12 R)
• M12: 6,171,361 km (0.083 R)
• M13: 7,599,273 km (0.089 R)
• M14: 11,027,757 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.9

Radius: 9.8

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.25 AU - 1.83 AU

Year: 1254 Days

Day: 7.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 34,270,413 km

• M1: 121,922 km (0.103 R)
• M2: 433,086 km (0.119 R)
• M3: 1,009,486 km (0.052 R)
• M4: 1,675,347 km (0.115 R)
• M5: 2,691,266 km (0.084 R)
• M6: 4,059,488 km (0.107 R)
• M7: 5,144,671 km (0.096 R)
• M8: 5,476,928 km (0.104 R)
• M9: 7,758,594 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 665.1

Radius: 8.8

Gravity: 8.59 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.35 AU - 1.83 AU

Year: 1315 Days

Day: 7.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 34,270,413 km

• M1: 109,506 km (0.092 R)
• M2: 409,300 km (0.063 R)
• M3: 686,505 km (0.112 R)
• M4: 1,152,801 km (0.092 R)
• M5: 1,639,293 km (0.103 R)
• M6: 2,724,177 km (0.09 R)
• M7: 3,051,198 km (0.072 R)
• M8: 3,328,702 km (0.093 R)
• M9: 3,607,104 km (0.09 R)
• M10: 5,994,536 km (0.087 R)
• M11: 7,268,811 km (0.094 R)
• M12: 11,144,443 km (0.072 R)
• M13: 11,559,876 km (0.085 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 773

Radius: 8

Gravity: 12.08 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 2.8 AU - 3.66 AU

Year: 3808 Days

Day: 7.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 34,270,413 km

• M1: 100,380 km (0.108 R)
• M2: 558,598 km (0.11 R)
• M3: 923,617 km (0.119 R)
• M4: 1,590,076 km (0.101 R)
• M5: 2,279,124 km (0.092 R)
• M6: 4,166,749 km (0.069 R)
• M7: 4,835,452 km (0.025 R)
• M8: 6,850,535 km (0.062 R)
• M9: 10,176,844 km (0.075 R)
• M10: 12,879,479 km (0.093 R)
• M11: 14,553,330 km (0.079 R)
• M12: 14,819,015 km (0.087 R)
• M13: 18,574,670 km (0.043 R)
• M14: 20,504,333 km (0.114 R)
• M15: 21,586,374 km (0.085 R)
• M16: 22,352,016 km (0.076 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687.6

Radius: 14

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 3.85 AU - 4.93 AU

Year: 6034 Days

Day: 6.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 34,270,413 km

• M1: 174,431 km (0.053 R)
• M2: 1,818,512 km (0.052 R)
• M3: 2,506,961 km (0.114 R)
• M4: 3,098,471 km (0.049 R)
• M5: 4,410,594 km (0.082 R)
• M6: 4,940,769 km (0.045 R)
• M7: 5,754,581 km (0.028 R)
• M8: 6,690,017 km (0.114 R)
• M9: 10,155,900 km (0.042 R)
• M10: 10,753,843 km (0.111 R)
• M11: 14,272,684 km (0.117 R)
• M12: 15,082,607 km (0.085 R)
• M13: 16,045,419 km (0.115 R)
• M14: 22,626,678 km (0.064 R)
• M15: 26,293,920 km (0.106 R)
• M16: 31,485,714 km (0.12 R)
• M17: 32,858,275 km (0.1 R)
• M18: 34,168,154 km (0.105 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: 182 - 17,319 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit