🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 280

Radius: 8.5

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.55 AU - 0.83 AU

Year: 376 Days

Day: 9 Hours

Environment

Temp: -135 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,630,052 km

• M1: 105,766 km (0.116 R)
• M2: 389,553 km (0.065 R)
• M3: 745,297 km (0.099 R)
• M4: 1,082,191 km (0.078 R)
• M5: 1,371,513 km (0.108 R)
• M6: 2,163,634 km (0.102 R)
• M7: 2,492,749 km (0.1 R)
• M8: 2,827,400 km (0.094 R)
• M9: 3,092,936 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.7

Radius: 15

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.7 AU - 0.94 AU

Year: 487 Days

Day: 11.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,630,052 km

• M1: 187,147 km (0.074 R)
• M2: 743,801 km (0.104 R)
• M3: 1,254,528 km (0.05 R)
• M4: 1,747,154 km (0.069 R)
• M5: 2,316,074 km (0.093 R)
• M6: 2,997,493 km (0.115 R)
• M7: 3,693,422 km (0.117 R)
• M8: 4,192,331 km (0.063 R)
• M9: 5,195,983 km (0.038 R)
• M10: 5,667,964 km (0.086 R)
• M11: 6,279,819 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31.1

Radius: 10.5

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.93 AU - 1.05 AU

Year: 646 Days

Day: 9.9 Hours

Environment

Temp: -149 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 45,630,052 km

• M1: 131,497 km (0.1 R)
• M2: 525,537 km (0.095 R)
• M3: 860,936 km (0.07 R)
• M4: 1,493,735 km (0.067 R)
• M5: 1,845,888 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.7

Radius: 12.2

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.11 AU - 1.19 AU

Year: 809 Days

Day: 9.4 Hours

Environment

Temp: -169 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,630,052 km

• M1: 151,692 km (0.109 R)
• M2: 545,284 km (0.113 R)
• M3: 943,663 km (0.069 R)
• M4: 1,433,896 km (0.076 R)
• M5: 1,887,626 km (0.119 R)
• M6: 2,725,075 km (0.068 R)
• M7: 3,160,405 km (0.067 R)
• M8: 3,579,428 km (0.103 R)
• M9: 4,090,155 km (0.116 R)
• M10: 5,324,338 km (0.115 R)
• M11: 6,208,910 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 399.9

Radius: 13.1

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.13 AU - 1.29 AU

Year: 873 Days

Day: 5.6 Hours

Environment

Temp: -167 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 45,630,052 km

• M1: 162,912 km (0.097 R)
• M2: 600,187 km (0.12 R)
• M3: 1,093,860 km (0.063 R)
• M4: 1,519,017 km (0.11 R)
• M5: 2,093,622 km (0.1 R)
• M6: 3,021,129 km (0.074 R)
• M7: 3,433,570 km (0.04 R)
• M8: 4,626,165 km (0.116 R)
• M9: 5,195,235 km (0.118 R)
• M10: 5,886,377 km (0.079 R)
• M11: 6,474,596 km (0.108 R)
• M12: 7,037,383 km (0.067 R)
• M13: 7,723,588 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610.8

Radius: 15

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.24 AU - 1.96 AU

Year: 1328 Days

Day: 10.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 109.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 45,630,052 km

• M1: 186,698 km (0.113 R)
• M2: 659,427 km (0.054 R)
• M3: 1,152,801 km (0.086 R)
• M4: 2,207,317 km (0.112 R)
• M5: 2,856,422 km (0.071 R)
• M6: 3,725,735 km (0.073 R)
• M7: 4,635,290 km (0.111 R)
• M8: 5,133,451 km (0.108 R)
• M9: 6,608,935 km (0.05 R)
• M10: 7,192,516 km (0.115 R)
• M11: 8,519,449 km (0.063 R)
• M12: 9,271,328 km (0.066 R)
• M13: 10,644,337 km (0.062 R)
• M14: 11,482,833 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872

Radius: 10.3

Gravity: 8.22 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.72 AU - 2.22 AU

Year: 1814 Days

Day: 8 Hours

Environment

Temp: -195 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 45,630,052 km

• M1: 128,056 km (0.069 R)
• M2: 565,181 km (0.071 R)
• M3: 944,561 km (0.048 R)
• M4: 1,396,047 km (0.094 R)
• M5: 1,832,125 km (0.112 R)
• M6: 2,629,183 km (0.111 R)
• M7: 3,091,590 km (0.091 R)
• M8: 3,660,510 km (0.047 R)
• M9: 4,122,169 km (0.058 R)
• M10: 4,643,518 km (0.103 R)
• M11: 5,276,167 km (0.069 R)
• M12: 6,242,270 km (0.116 R)
• M13: 7,610,492 km (0.054 R)
• M14: 8,617,137 km (0.104 R)
• M15: 9,437,082 km (0.106 R)
• M16: 9,779,213 km (0.113 R)
• M17: 10,129,721 km (0.105 R)
• M18: 10,488,606 km (0.105 R)
• M19: 11,308,103 km (0.101 R)
• M20: 11,733,559 km (0.034 R)
• M21: 13,803,994 km (0.063 R)
• M22: 14,787,899 km (0.07 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915

Radius: 10.8

Gravity: 7.84 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.95 AU - 2.67 AU

Year: 2303 Days

Day: 9.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 74.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 45,630,052 km

• M1: 138,827 km (0.048 R)
• M2: 557,551 km (0.069 R)
• M3: 1,198,279 km (0.085 R)
• M4: 1,700,629 km (0.069 R)
• M5: 2,494,844 km (0.067 R)
• M6: 3,100,565 km (0.045 R)
• M7: 3,725,436 km (0.099 R)
• M8: 4,180,363 km (0.084 R)
• M9: 4,672,241 km (0.09 R)
• M10: 5,494,730 km (0.116 R)
• M11: 6,949,719 km (0.097 R)
• M12: 8,117,480 km (0.106 R)
• M13: 9,093,307 km (0.111 R)
• M14: 9,700,674 km (0.052 R)
• M15: 10,681,737 km (0.108 R)
• M16: 12,404,506 km (0.077 R)
• M17: 13,975,732 km (0.051 R)
• M18: 15,275,588 km (0.114 R)
• M19: 16,289,263 km (0.093 R)
• M20: 19,716,850 km (0.052 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.4

Radius: 10.7

Gravity: 8.34 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 4.12 AU - 6.36 AU

Year: 7869 Days

Day: 8.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 45,630,052 km

• M1: 133,142 km (0.103 R)
• M2: 597,943 km (0.096 R)
• M3: 1,541,606 km (0.081 R)
• M4: 2,790,599 km (0.11 R)
• M5: 3,338,127 km (0.082 R)
• M6: 4,223,896 km (0.116 R)
• M7: 9,716,830 km (0.033 R)
• M8: 14,125,480 km (0.036 R)
• M9: 14,756,633 km (0.11 R)
• M10: 15,605,152 km (0.062 R)
• M11: 16,833,201 km (0.062 R)
• M12: 17,687,106 km (0.071 R)
• M13: 19,947,829 km (0.05 R)
• M14: 21,311,264 km (0.07 R)
• M15: 22,735,585 km (0.114 R)
• M16: 30,717,080 km (0.109 R)
• M17: 32,641,507 km (0.106 R)
• M18: 34,644,772 km (0.071 R)
• M19: 35,100,896 km (0.057 R)
• M20: 37,561,482 km (0.115 R)
• M21: 38,528,333 km (0.089 R)
• M22: 38,895,147 km (0.066 R)
• M23: 39,760,272 km (0.076 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 374 - 19,480 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit