🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.4

Radius: 14.3

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.47 AU - 0.73 AU

Year: 310 Days

Day: 12.6 Hours

Environment

Temp: -154 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 22,513,913 km

• M1: 181,911 km (0.118 R)
• M2: 672,742 km (0.042 R)
• M3: 1,481,019 km (0.119 R)
• M4: 2,324,751 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441

Radius: 10.5

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.78 AU - 0.94 AU

Year: 532 Days

Day: 10.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 22,513,913 km

• M1: 130,599 km (0.053 R)
• M2: 658,979 km (0.093 R)
• M3: 1,196,035 km (0.09 R)
• M4: 1,554,771 km (0.1 R)
• M5: 1,945,969 km (0.099 R)
• M6: 2,430,816 km (0.088 R)
• M7: 2,877,814 km (0.115 R)
• M8: 3,426,539 km (0.095 R)
• M9: 3,808,762 km (0.101 R)
• M10: 4,233,321 km (0.108 R)
• M11: 4,883,772 km (0.073 R)
• M12: 5,369,666 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.3

Radius: 9.2

Gravity: 8.56 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.79 AU - 1.01 AU

Year: 569 Days

Day: 8.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 22,513,913 km

• M1: 114,442 km (0.091 R)
• M2: 454,628 km (0.11 R)
• M3: 745,446 km (0.089 R)
• M4: 1,185,414 km (0.034 R)
• M5: 1,509,443 km (0.091 R)
• M6: 1,935,647 km (0.108 R)
• M7: 2,244,118 km (0.111 R)
• M8: 2,703,383 km (0.092 R)
• M9: 3,103,109 km (0.075 R)
• M10: 3,451,073 km (0.113 R)
• M11: 4,225,691 km (0.111 R)
• M12: 4,575,750 km (0.101 R)
• M13: 5,891,164 km (0.094 R)
• M14: 6,368,082 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 432.4

Radius: 11

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.11 AU - 1.21 AU

Year: 833 Days

Day: 10.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 22,513,913 km

• M1: 137,331 km (0.111 R)
• M2: 499,358 km (0.053 R)
• M3: 989,141 km (0.092 R)
• M4: 1,461,422 km (0.107 R)
• M5: 2,018,374 km (0.104 R)
• M6: 2,372,622 km (0.098 R)
• M7: 3,098,022 km (0.06 R)
• M8: 4,142,066 km (0.072 R)
• M9: 5,004,498 km (0.106 R)
• M10: 5,533,176 km (0.057 R)
• M11: 6,765,265 km (0.111 R)
• M12: 7,368,144 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.4

Radius: 9.5

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.06 AU - 1.46 AU

Year: 943 Days

Day: 10.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 22,513,913 km

• M1: 118,182 km (0.113 R)
• M2: 429,047 km (0.087 R)
• M3: 748,438 km (0.076 R)
• M4: 1,092,663 km (0.114 R)
• M5: 1,488,499 km (0.099 R)
• M6: 1,794,277 km (0.118 R)
• M7: 2,195,648 km (0.085 R)
• M8: 2,545,408 km (0.052 R)
• M9: 2,943,488 km (0.05 R)
• M10: 4,569,766 km (0.084 R)
• M11: 5,340,794 km (0.104 R)
• M12: 6,068,438 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.2

Radius: 11.5

Gravity: 6.29 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 2.06 AU - 2.08 AU

Year: 1986 Days

Day: 9.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 22,513,913 km

• M1: 143,764 km (0.116 R)
• M2: 590,612 km (0.069 R)
• M3: 1,127,968 km (0.089 R)
• M4: 1,593,367 km (0.065 R)
• M5: 1,969,606 km (0.034 R)
• M6: 2,556,029 km (0.065 R)
• M7: 3,093,684 km (0.094 R)
• M8: 3,797,093 km (0.12 R)
• M9: 4,157,923 km (0.091 R)
• M10: 4,562,436 km (0.054 R)
• M11: 5,357,549 km (0.09 R)
• M12: 6,857,566 km (0.097 R)
• M13: 7,395,520 km (0.062 R)
• M14: 8,115,236 km (0.071 R)
• M15: 8,750,279 km (0.056 R)
• M16: 10,373,116 km (0.096 R)
• M17: 11,945,540 km (0.077 R)
• M18: 15,366,095 km (0.063 R)
• M19: 16,140,713 km (0.056 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.4

Radius: 9

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 2.43 AU - 2.47 AU

Year: 2557 Days

Day: 13.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 22,513,913 km

• M1: 113,694 km (0.062 R)
• M2: 421,118 km (0.094 R)
• M3: 749,635 km (0.12 R)
• M4: 1,261,858 km (0.082 R)
• M5: 1,648,120 km (0.117 R)
• M6: 1,941,481 km (0.092 R)
• M7: 2,522,220 km (0.104 R)
• M8: 3,055,088 km (0.091 R)
• M9: 3,661,109 km (0.027 R)
• M10: 3,942,053 km (0.088 R)
• M11: 5,421,876 km (0.108 R)
• M12: 5,966,412 km (0.117 R)
• M13: 6,475,194 km (0.052 R)
• M14: 7,240,986 km (0.104 R)
• M15: 8,515,410 km (0.09 R)
• M16: 9,933,299 km (0.084 R)
• M17: 10,417,397 km (0.098 R)
• M18: 11,155,513 km (0.115 R)
• M19: 11,785,171 km (0.108 R)
• M20: 12,217,957 km (0.115 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589.5

Radius: 10.3

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 2.62 AU - 3 AU

Year: 3141 Days

Day: 9.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 22,513,913 km

• M1: 139,276 km (0.091 R)
• M2: 500,405 km (0.118 R)
• M3: 833,709 km (0.114 R)
• M4: 1,478,326 km (0.074 R)
• M5: 1,985,762 km (0.106 R)
• M6: 3,123,604 km (0.057 R)
• M7: 3,707,783 km (0.113 R)
• M8: 4,450,686 km (0.052 R)
• M9: 5,339,148 km (0.113 R)
• M10: 5,932,004 km (0.087 R)
• M11: 6,741,329 km (0.088 R)
• M12: 7,750,067 km (0.094 R)
• M13: 9,800,007 km (0.116 R)
• M14: 10,889,528 km (0.053 R)
• M15: 12,275,253 km (0.09 R)
• M16: 14,840,408 km (0.06 R)
• M17: 17,354,550 km (0.096 R)
• M18: 18,712,300 km (0.088 R)
• M19: 19,357,815 km (0.107 R)
• M20: 20,139,763 km (0.091 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668.2

Radius: 12.7

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 2.39 AU - 3.37 AU

Year: 3259 Days

Day: 11.5 Hours

Environment

Temp: -209 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 22,513,913 km

• M1: 157,975 km (0.111 R)
• M2: 659,278 km (0.048 R)
• M3: 1,218,475 km (0.085 R)
• M4: 1,654,104 km (0.084 R)
• M5: 2,319,814 km (0.109 R)
• M6: 3,562,224 km (0.114 R)
• M7: 5,182,519 km (0.086 R)
• M8: 5,882,188 km (0.07 R)
• M9: 6,297,472 km (0.106 R)
• M10: 6,762,123 km (0.104 R)
• M11: 7,280,779 km (0.104 R)
• M12: 7,991,518 km (0.107 R)
• M13: 8,926,505 km (0.101 R)
• M14: 9,627,072 km (0.099 R)
• M15: 10,604,694 km (0.116 R)
• M16: 12,574,748 km (0.052 R)
• M17: 17,509,533 km (0.062 R)
• M18: 18,785,753 km (0.102 R)
• M19: 20,435,668 km (0.047 R)
• M20: 21,006,533 km (0.11 R)
• M21: 21,784,292 km (0.094 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 432 - 15,313 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit