🌌 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 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.52 AU - 0.52 AU

Year: 246 Days

Day: 29.6 Hours

Environment

Temp: -128 °C

Axial Tilt: 49.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.6

Radius: 12

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.67 AU - 0.93 AU

Year: 469 Days

Day: 9.2 Hours

Environment

Temp: -139 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,111,567 km

• M1: 149,299 km (0.066 R)
• M2: 604,525 km (0.117 R)
• M3: 1,104,481 km (0.092 R)
• M4: 1,546,842 km (0.052 R)
• M5: 2,059,065 km (0.113 R)
• M6: 2,483,773 km (0.034 R)
• M7: 2,935,709 km (0.112 R)
• M8: 3,327,505 km (0.079 R)
• M9: 3,879,522 km (0.079 R)
• M10: 4,353,448 km (0.045 R)
• M11: 4,821,839 km (0.119 R)
• M12: 5,355,155 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 881.7

Radius: 13.1

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.96 AU - 1.42 AU

Year: 852 Days

Day: 10.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,111,567 km

• M1: 163,810 km (0.114 R)
• M2: 618,438 km (0.107 R)
• M3: 1,174,194 km (0.102 R)
• M4: 2,011,493 km (0.049 R)
• M5: 2,717,445 km (0.101 R)
• M6: 3,136,020 km (0.1 R)
• M7: 3,686,840 km (0.099 R)
• M8: 5,208,848 km (0.082 R)
• M9: 5,677,838 km (0.07 R)
• M10: 6,906,634 km (0.104 R)
• M11: 7,970,874 km (0.101 R)
• M12: 8,595,894 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 554.8

Radius: 12.4

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 1.09 AU - 1.73 AU

Year: 1098 Days

Day: 10.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,111,567 km

• M1: 160,369 km (0.086 R)
• M2: 613,501 km (0.106 R)
• M3: 1,461,870 km (0.114 R)
• M4: 2,389,228 km (0.061 R)
• M5: 3,042,821 km (0.105 R)
• M6: 3,675,769 km (0.089 R)
• M7: 4,277,452 km (0.11 R)
• M8: 5,263,900 km (0.095 R)
• M9: 5,739,622 km (0.108 R)
• M10: 6,308,991 km (0.104 R)
• M11: 7,032,297 km (0.048 R)
• M12: 10,247,305 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 227.1

Radius: 14

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.64 AU - 2.18 AU

Year: 1732 Days

Day: 10.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 107.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 32,111,567 km

• M1: 179,069 km (0.118 R)
• M2: 619,784 km (0.037 R)
• M3: 1,122,283 km (0.078 R)
• M4: 1,887,626 km (0.098 R)
• M5: 2,600,609 km (0.105 R)
• M6: 3,416,666 km (0.072 R)
• M7: 5,598,850 km (0.091 R)
• M8: 6,352,973 km (0.102 R)
• M9: 6,938,798 km (0.077 R)
• M10: 7,784,475 km (0.075 R)
• M11: 9,798,511 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567.4

Radius: 10.7

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 2.08 AU - 3.04 AU

Year: 2687 Days

Day: 10.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 32,111,567 km

• M1: 135,835 km (0.118 R)
• M2: 546,032 km (0.086 R)
• M3: 897,288 km (0.106 R)
• M4: 1,262,756 km (0.119 R)
• M5: 1,909,467 km (0.111 R)
• M6: 2,404,187 km (0.09 R)
• M7: 3,195,859 km (0.058 R)
• M8: 3,543,674 km (0.11 R)
• M9: 4,316,198 km (0.034 R)
• M10: 5,244,303 km (0.093 R)
• M11: 5,705,812 km (0.102 R)
• M12: 6,408,025 km (0.086 R)
• M13: 7,403,150 km (0.116 R)
• M14: 7,828,905 km (0.112 R)
• M15: 9,591,019 km (0.114 R)
• M16: 11,482,534 km (0.111 R)
• M17: 12,262,537 km (0.065 R)
• M18: 12,773,265 km (0.084 R)
• M19: 13,253,773 km (0.071 R)
• M20: 14,578,612 km (0.107 R)
• M21: 15,444,035 km (0.112 R)
• M22: 16,702,602 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 540.8

Radius: 9.4

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 2.28 AU - 3.04 AU

Year: 2846 Days

Day: 5.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,111,567 km

• M1: 116,986 km (0.086 R)
• M2: 652,097 km (0.111 R)
• M3: 1,528,292 km (0.072 R)
• M4: 2,107,535 km (0.096 R)
• M5: 2,441,587 km (0.102 R)
• M6: 2,969,219 km (0.085 R)
• M7: 3,462,592 km (0.102 R)
• M8: 4,398,626 km (0.045 R)
• M9: 4,767,983 km (0.048 R)
• M10: 5,276,616 km (0.111 R)
• M11: 7,589,100 km (0.114 R)
• M12: 8,315,846 km (0.059 R)
• M13: 9,019,106 km (0.092 R)
• M14: 9,725,358 km (0.086 R)
• M15: 10,814,280 km (0.048 R)
• M16: 12,234,263 km (0.092 R)
• M17: 13,411,748 km (0.098 R)
• M18: 14,237,678 km (0.107 R)
• M19: 16,041,380 km (0.107 R)
• M20: 16,450,530 km (0.071 R)
• M21: 18,047,338 km (0.097 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879.1

Radius: 10.2

Gravity: 8.45 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 3.08 AU - 4.5 AU

Year: 4840 Days

Day: 8.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 32,111,567 km

• M1: 126,859 km (0.062 R)
• M2: 521,049 km (0.082 R)
• M3: 1,318,556 km (0.059 R)
• M4: 2,363,646 km (0.053 R)
• M5: 5,535,869 km (0.082 R)
• M6: 5,926,320 km (0.026 R)
• M7: 7,315,635 km (0.087 R)
• M8: 10,139,594 km (0.108 R)
• M9: 10,725,719 km (0.063 R)
• M10: 12,878,731 km (0.073 R)
• M11: 14,446,367 km (0.118 R)
• M12: 14,842,951 km (0.096 R)
• M13: 15,717,650 km (0.119 R)
• M14: 20,258,693 km (0.116 R)
• M15: 23,443,782 km (0.076 R)
• M16: 25,032,960 km (0.08 R)
• M17: 26,777,720 km (0.089 R)
• M18: 31,824,553 km (0.099 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 235 - 17,308 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit