🌌 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: 881.9

Radius: 15

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.63 AU - 0.95 AU

Year: 468 Days

Day: 12.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 65,833,973 km

• M1: 186,549 km (0.114 R)
• M2: 725,101 km (0.071 R)
• M3: 1,200,972 km (0.034 R)
• M4: 2,388,480 km (0.082 R)
• M5: 3,253,006 km (0.076 R)
• M6: 3,739,648 km (0.1 R)
• M7: 5,183,566 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 571.6

Radius: 8.4

Gravity: 8.1 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.76 AU - 0.96 AU

Year: 532 Days

Day: 7 Hours

Environment

Temp: -162 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 65,833,973 km

• M1: 104,419 km (0.093 R)
• M2: 407,205 km (0.059 R)
• M3: 672,742 km (0.116 R)
• M4: 937,231 km (0.053 R)
• M5: 1,266,944 km (0.049 R)
• M6: 1,579,006 km (0.099 R)
• M7: 2,184,727 km (0.05 R)
• M8: 2,536,432 km (0.1 R)
• M9: 3,440,601 km (0.096 R)
• M10: 4,309,915 km (0.052 R)
• M11: 5,153,796 km (0.085 R)
• M12: 5,904,927 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.7

Radius: 8

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.2 AU - 1.26 AU

Year: 910 Days

Day: 13.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 65,833,973 km

• M1: 101,727 km (0.118 R)
• M2: 411,544 km (0.094 R)
• M3: 884,722 km (0.082 R)
• M4: 1,163,871 km (0.064 R)
• M5: 1,629,420 km (0.051 R)
• M6: 1,980,077 km (0.115 R)
• M7: 2,545,408 km (0.118 R)
• M8: 2,855,524 km (0.088 R)
• M9: 3,167,735 km (0.076 R)
• M10: 3,782,133 km (0.096 R)
• M11: 5,085,280 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40.1

Radius: 8.1

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.42 AU - 1.6 AU

Year: 1237 Days

Day: 10.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 65,833,973 km

• M1: 100,829 km (0.078 R)
• M2: 416,929 km (0.051 R)
• M3: 718,219 km (0.108 R)
• M4: 1,067,530 km (0.084 R)
• M5: 1,371,064 km (0.097 R)
• M6: 1,852,171 km (0.114 R)
• M7: 2,205,073 km (0.03 R)
• M8: 2,867,193 km (0.052 R)
• M9: 3,160,554 km (0.033 R)
• M10: 3,496,252 km (0.051 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 408.6

Radius: 13.6

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.41 AU - 1.77 AU

Year: 1337 Days

Day: 8.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,833,973 km

• M1: 169,195 km (0.112 R)
• M2: 686,505 km (0.104 R)
• M3: 1,317,209 km (0.107 R)
• M4: 1,785,600 km (0.105 R)
• M5: 2,631,277 km (0.115 R)
• M6: 3,745,033 km (0.11 R)
• M7: 4,174,379 km (0.093 R)
• M8: 4,618,984 km (0.042 R)
• M9: 5,133,451 km (0.101 R)
• M10: 5,706,411 km (0.117 R)
• M11: 7,028,557 km (0.12 R)
• M12: 8,017,698 km (0.09 R)
• M13: 8,681,763 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.1

Radius: 8.2

Gravity: 4.76 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.38 AU - 1.88 AU

Year: 1388 Days

Day: 5.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 65,833,973 km

• M1: 102,026 km (0.108 R)
• M2: 539,749 km (0.075 R)
• M3: 881,131 km (0.093 R)
• M4: 1,179,729 km (0.116 R)
• M5: 1,505,553 km (0.06 R)
• M6: 1,834,967 km (0.108 R)
• M7: 2,191,160 km (0.097 R)
• M8: 2,569,493 km (0.08 R)
• M9: 3,357,874 km (0.106 R)
• M10: 4,519,950 km (0.113 R)
• M11: 5,663,327 km (0.103 R)
• M12: 8,272,313 km (0.061 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 69.1

Radius: 14.1

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.91 AU - 2.59 AU

Year: 2251 Days

Day: 11.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,833,973 km

• M1: 180,265 km (0.093 R)
• M2: 887,415 km (0.027 R)
• M3: 2,101,102 km (0.097 R)
• M4: 2,899,805 km (0.111 R)
• M5: 3,476,355 km (0.102 R)
• M6: 4,762,448 km (0.067 R)
• M7: 5,315,063 km (0.115 R)
• M8: 6,324,998 km (0.077 R)
• M9: 7,944,844 km (0.032 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 509.2

Radius: 4.1

Gravity: 30.29 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 8.73 AU - 9.71 AU

Year: 18669 Days

Day: 18.8 Hours

Environment

Temp: -239 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 65,833,973 km

• M1: 51,761 km (0.119 R)
• M2: 205,697 km (0.1 R)
• M3: 409,599 km (0.104 R)
• M4: 883,076 km (0.101 R)
• M5: 1,078,900 km (0.111 R)
• M6: 1,688,810 km (0.076 R)
• M7: 3,019,035 km (0.105 R)
• M8: 3,329,301 km (0.083 R)
• M9: 4,261,146 km (0.032 R)
• M10: 4,685,106 km (0.102 R)
• M11: 5,616,502 km (0.106 R)
• M12: 7,602,265 km (0.116 R)
• M13: 13,977,827 km (0.056 R)
• M14: 15,352,631 km (0.117 R)
• M15: 20,735,312 km (0.108 R)
• M16: 21,380,677 km (0.049 R)
• M17: 22,229,944 km (0.117 R)
• M18: 25,536,656 km (0.097 R)
• M19: 40,879,264 km (0.06 R)
• M20: 41,023,027 km (0.063 R)
• M21: 41,167,090 km (0.098 R)
• M22: 42,626,716 km (0.119 R)
• M23: 50,279,695 km (0.083 R)
• M24: 51,946,514 km (0.104 R)
• M25: 62,917,872 km (0.063 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 285 - 12,368 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit