🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.75

Radius: 1.25

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.58 AU - 0.64 AU

Year: 308 Days

Day: 17.8 Hours

Environment

Temp: -136 °C

Axial Tilt: 4.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 29,509,603 km

• M1: 325,076 km (0.052 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.7

Radius: 8.7

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.74 AU - 1.08 AU

Year: 561 Days

Day: 5.1 Hours

Environment

Temp: -156 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 29,509,603 km

• M1: 108,159 km (0.1 R)
• M2: 512,672 km (0.098 R)
• M3: 797,207 km (0.09 R)
• M4: 1,366,277 km (0.109 R)
• M5: 1,741,469 km (0.089 R)
• M6: 2,150,769 km (0.101 R)
• M7: 2,565,454 km (0.107 R)
• M8: 2,915,962 km (0.12 R)
• M9: 3,332,592 km (0.115 R)
• M10: 3,941,006 km (0.102 R)
• M11: 4,535,957 km (0.091 R)
• M12: 4,929,848 km (0.056 R)
• M13: 5,283,348 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652

Radius: 10.8

Gravity: 5.59 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.07 AU - 1.33 AU

Year: 849 Days

Day: 13 Hours

Environment

Temp: -169 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 29,509,603 km

• M1: 134,339 km (0.04 R)
• M2: 496,366 km (0.109 R)
• M3: 862,731 km (0.104 R)
• M4: 1,462,469 km (0.096 R)
• M5: 1,848,880 km (0.12 R)
• M6: 2,314,279 km (0.038 R)
• M7: 2,667,180 km (0.091 R)
• M8: 3,043,419 km (0.045 R)
• M9: 3,624,607 km (0.057 R)
• M10: 4,057,244 km (0.119 R)
• M11: 6,144,882 km (0.077 R)
• M12: 8,760,900 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.9

Radius: 9.2

Gravity: 8.33 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.25 AU - 1.35 AU

Year: 957 Days

Day: 6.3 Hours

Environment

Temp: -163 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 29,509,603 km

• M1: 114,442 km (0.088 R)
• M2: 418,425 km (0.049 R)
• M3: 708,196 km (0.091 R)
• M4: 1,088,773 km (0.103 R)
• M5: 1,891,366 km (0.055 R)
• M6: 2,850,887 km (0.108 R)
• M7: 3,431,626 km (0.116 R)
• M8: 4,303,931 km (0.064 R)
• M9: 4,774,266 km (0.112 R)
• M10: 5,144,372 km (0.075 R)
• M11: 5,817,712 km (0.069 R)
• M12: 6,154,307 km (0.11 R)
• M13: 7,658,214 km (0.1 R)
• M14: 8,192,578 km (0.076 R)
• M15: 8,589,311 km (0.069 R)
• M16: 9,335,954 km (0.057 R)
• M17: 9,623,182 km (0.066 R)
• M18: 9,916,394 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 984.1

Radius: 13.8

Gravity: 5.17 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.77 AU - 1.79 AU

Year: 1533 Days

Day: 7.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 29,509,603 km

• M1: 171,589 km (0.105 R)
• M2: 717,322 km (0.1 R)
• M3: 1,266,795 km (0.107 R)
• M4: 2,228,260 km (0.037 R)
• M5: 2,805,259 km (0.084 R)
• M6: 4,438,270 km (0.105 R)
• M7: 5,495,328 km (0.106 R)
• M8: 5,986,757 km (0.1 R)
• M9: 6,845,000 km (0.092 R)
• M10: 7,331,792 km (0.081 R)
• M11: 8,046,421 km (0.119 R)
• M12: 8,901,522 km (0.116 R)
• M13: 9,581,893 km (0.1 R)
• M14: 13,643,775 km (0.113 R)
• M15: 14,994,494 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.4

Radius: 15

Gravity: 0.05 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.52 AU - 2.2 AU

Year: 1638 Days

Day: 11.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 29,509,603 km

• M1: 186,698 km (0.087 R)
• M2: 655,987 km (0.084 R)
• M3: 1,232,238 km (0.115 R)
• M4: 2,000,273 km (0.088 R)
• M5: 3,139,461 km (0.028 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 944.7

Radius: 13.5

Gravity: 5.18 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 3.21 AU - 4.03 AU

Year: 4447 Days

Day: 8.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 29,509,603 km

• M1: 203,752 km (0.102 R)
• M2: 839,394 km (0.106 R)
• M3: 3,236,550 km (0.079 R)
• M4: 3,760,890 km (0.076 R)
• M5: 5,117,893 km (0.113 R)
• M6: 5,568,482 km (0.12 R)
• M7: 6,325,896 km (0.04 R)
• M8: 8,425,651 km (0.06 R)
• M9: 9,718,775 km (0.098 R)
• M10: 10,368,778 km (0.095 R)
• M11: 11,327,252 km (0.037 R)
• M12: 14,227,655 km (0.091 R)
• M13: 16,477,158 km (0.091 R)
• M14: 17,528,383 km (0.084 R)
• M15: 17,974,035 km (0.103 R)
• M16: 19,901,753 km (0.12 R)
• M17: 20,456,910 km (0.117 R)
• M18: 21,022,390 km (0.062 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444

Radius: 8.3

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 4.15 AU - 4.69 AU

Year: 6000 Days

Day: 6.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 29,509,603 km

• M1: 103,223 km (0.082 R)
• M2: 395,537 km (0.102 R)
• M3: 769,681 km (0.031 R)
• M4: 1,300,305 km (0.069 R)
• M5: 1,666,371 km (0.091 R)
• M6: 2,747,365 km (0.103 R)
• M7: 3,912,882 km (0.108 R)
• M8: 4,995,671 km (0.107 R)
• M9: 5,520,461 km (0.091 R)
• M10: 7,775,798 km (0.097 R)
• M11: 9,066,977 km (0.059 R)
• M12: 10,851,979 km (0.113 R)
• M13: 13,320,045 km (0.066 R)
• M14: 14,823,055 km (0.068 R)
• M15: 20,279,787 km (0.073 R)
• M16: 20,694,322 km (0.118 R)
• M17: 21,827,526 km (0.067 R)
• M18: 23,452,608 km (0.06 R)
• M19: 24,762,337 km (0.105 R)
• M20: 28,206,080 km (0.113 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: 498 - 13,956 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit