🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 366.7

Radius: 8.3

Gravity: 5.32 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.64 AU - 0.94 AU

Year: 485 Days

Day: 13.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 24,811,712 km

• M1: 108,309 km (0.078 R)
• M2: 603,179 km (0.087 R)
• M3: 866,620 km (0.114 R)
• M4: 1,134,101 km (0.06 R)
• M5: 1,704,668 km (0.091 R)
• M6: 2,035,429 km (0.113 R)
• M7: 2,612,727 km (0.108 R)
• M8: 3,217,252 km (0.113 R)
• M9: 4,064,425 km (0.109 R)
• M10: 4,547,476 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382

Radius: 10.4

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.72 AU - 1.08 AU

Year: 589 Days

Day: 8 Hours

Environment

Temp: -168 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 24,811,712 km

• M1: 129,851 km (0.099 R)
• M2: 538,104 km (0.114 R)
• M3: 1,024,446 km (0.073 R)
• M4: 1,515,875 km (0.115 R)
• M5: 2,100,205 km (0.094 R)
• M6: 3,925,897 km (0.088 R)
• M7: 4,376,635 km (0.077 R)
• M8: 5,398,838 km (0.084 R)
• M9: 5,922,580 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294.8

Radius: 9.6

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.06 AU - 1.18 AU

Year: 818 Days

Day: 13.5 Hours

Environment

Temp: -170 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 24,811,712 km

• M1: 119,379 km (0.091 R)
• M2: 424,260 km (0.113 R)
• M3: 855,849 km (0.081 R)
• M4: 1,481,617 km (0.099 R)
• M5: 2,923,741 km (0.117 R)
• M6: 3,262,730 km (0.105 R)
• M7: 3,641,063 km (0.054 R)
• M8: 4,119,477 km (0.073 R)
• M9: 4,827,374 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.9

Radius: 12.7

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.15 AU - 1.17 AU

Year: 862 Days

Day: 9.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 24,811,712 km

• M1: 158,125 km (0.105 R)
• M2: 600,785 km (0.091 R)
• M3: 1,149,061 km (0.074 R)
• M4: 1,607,728 km (0.105 R)
• M5: 2,370,677 km (0.075 R)
• M6: 3,214,709 km (0.072 R)
• M7: 3,687,288 km (0.03 R)
• M8: 4,089,856 km (0.083 R)
• M9: 4,583,828 km (0.115 R)
• M10: 5,408,711 km (0.114 R)
• M11: 5,912,407 km (0.115 R)
• M12: 6,849,189 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.9

Radius: 8.9

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.04 AU - 1.32 AU

Year: 885 Days

Day: 11.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 24,811,712 km

• M1: 110,702 km (0.099 R)
• M2: 501,302 km (0.06 R)
• M3: 937,530 km (0.075 R)
• M4: 2,197,742 km (0.119 R)
• M5: 2,880,058 km (0.079 R)
• M6: 3,621,316 km (0.07 R)
• M7: 4,104,666 km (0.048 R)
• M8: 4,719,962 km (0.077 R)
• M9: 5,511,335 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 867.9

Radius: 14.4

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.08 AU - 1.6 AU

Year: 1071 Days

Day: 13.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 24,811,712 km

• M1: 179,218 km (0.071 R)
• M2: 639,680 km (0.044 R)
• M3: 1,826,590 km (0.113 R)
• M4: 2,461,035 km (0.102 R)
• M5: 3,058,678 km (0.107 R)
• M6: 3,768,221 km (0.059 R)
• M7: 4,266,082 km (0.105 R)
• M8: 4,751,677 km (0.104 R)
• M9: 5,234,429 km (0.069 R)
• M10: 6,669,073 km (0.059 R)
• M11: 7,326,556 km (0.103 R)
• M12: 7,841,172 km (0.045 R)
• M13: 9,805,392 km (0.088 R)
• M14: 10,885,788 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.7

Radius: 9.9

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.21 AU - 1.51 AU

Year: 1095 Days

Day: 7.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 24,811,712 km

• M1: 123,119 km (0.039 R)
• M2: 444,605 km (0.059 R)
• M3: 996,771 km (0.035 R)
• M4: 1,639,593 km (0.099 R)
• M5: 2,162,437 km (0.079 R)
• M6: 2,586,248 km (0.118 R)
• M7: 3,662,156 km (0.072 R)
• M8: 4,386,210 km (0.091 R)
• M9: 5,107,421 km (0.112 R)
• M10: 7,183,989 km (0.065 R)
• M11: 8,107,157 km (0.071 R)
• M12: 9,362,732 km (0.107 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.7

Radius: 12.5

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 2.63 AU - 2.85 AU

Year: 3131 Days

Day: 5.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 24,811,712 km

• M1: 159,771 km (0.114 R)
• M2: 618,438 km (0.046 R)
• M3: 1,311,973 km (0.086 R)
• M4: 1,713,195 km (0.11 R)
• M5: 2,321,460 km (0.1 R)
• M6: 2,760,679 km (0.115 R)
• M7: 3,479,198 km (0.118 R)
• M8: 4,213,574 km (0.056 R)
• M9: 4,646,211 km (0.119 R)
• M10: 5,208,549 km (0.11 R)
• M11: 5,837,758 km (0.059 R)
• M12: 6,284,906 km (0.076 R)
• M13: 7,401,205 km (0.05 R)
• M14: 8,503,891 km (0.048 R)
• M15: 9,109,613 km (0.108 R)
• M16: 9,529,235 km (0.108 R)
• M17: 11,067,250 km (0.058 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.5

Radius: 14.1

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 2.31 AU - 3.67 AU

Year: 3569 Days

Day: 5.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 24,811,712 km

• M1: 175,478 km (0.12 R)
• M2: 1,204,562 km (0.112 R)
• M3: 1,787,246 km (0.113 R)
• M4: 2,701,887 km (0.096 R)
• M5: 3,578,231 km (0.112 R)
• M6: 4,017,900 km (0.098 R)
• M7: 4,758,259 km (0.103 R)
• M8: 5,642,981 km (0.065 R)
• M9: 6,573,480 km (0.098 R)
• M10: 7,172,919 km (0.093 R)
• M11: 7,671,678 km (0.025 R)
• M12: 10,025,900 km (0.113 R)
• M13: 10,693,555 km (0.07 R)
• M14: 13,514,971 km (0.101 R)
• M15: 14,539,417 km (0.048 R)
• M16: 18,659,642 km (0.061 R)
• M17: 20,919,317 km (0.075 R)
• M18: 22,500,268 km (0.115 R)
• M19: 25,744,447 km (0.111 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 66.3

Radius: 5.1

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 6.57 AU - 6.83 AU

Year: 11971 Days

Day: 23.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 24,811,712 km

• M1: 63,429 km (0.085 R)
• M2: 414,237 km (0.096 R)
• M3: 1,106,426 km (0.064 R)
• M4: 1,744,311 km (0.097 R)
• M5: 2,939,598 km (0.112 R)
• M6: 4,917,132 km (0.094 R)
• M7: 5,355,753 km (0.059 R)
• M8: 9,611,962 km (0.113 R)
• M9: 10,756,685 km (0.107 R)
• M10: 14,163,029 km (0.03 R)
• M11: 16,472,970 km (0.091 R)
• M12: 19,022,117 km (0.109 R)
• M13: 21,015,060 km (0.075 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 222 - 16,708 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit