🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.97

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.52 AU - 0.58 AU

Year: 263 Days

Day: 37.6 Hours

Environment

Temp: -117 °C

Axial Tilt: 9.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 80,263,790 km

• M1: 233,821 km (0.066 R)
• M2: 363,972 km (0.105 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.93

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.54 AU - 0.72 AU

Year: 323 Days

Day: 14.7 Hours

Environment

Temp: -121 °C

Axial Tilt: 31.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.8

Radius: 12.4

Gravity: 5.7 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.97 AU - 1.19 AU

Year: 725 Days

Day: 13.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 80,263,790 km

• M1: 154,235 km (0.072 R)
• M2: 677,678 km (0.076 R)
• M3: 1,213,239 km (0.088 R)
• M4: 2,094,221 km (0.116 R)
• M5: 2,496,190 km (0.073 R)
• M6: 2,888,884 km (0.111 R)
• M7: 3,283,224 km (0.07 R)
• M8: 3,699,406 km (0.108 R)
• M9: 5,129,113 km (0.119 R)
• M10: 5,692,498 km (0.06 R)
• M11: 6,131,718 km (0.07 R)
• M12: 6,658,152 km (0.098 R)
• M13: 7,260,583 km (0.071 R)
• M14: 7,730,021 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414.1

Radius: 12.6

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.79 AU - 2.41 AU

Year: 1965 Days

Day: 11.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 80,263,790 km

• M1: 158,574 km (0.102 R)
• M2: 656,735 km (0.114 R)
• M3: 1,110,615 km (0.033 R)
• M4: 1,544,748 km (0.044 R)
• M5: 2,265,361 km (0.071 R)
• M6: 2,677,802 km (0.094 R)
• M7: 3,125,848 km (0.084 R)
• M8: 3,640,464 km (0.112 R)
• M9: 4,247,832 km (0.071 R)
• M10: 4,901,724 km (0.097 R)
• M11: 6,362,996 km (0.118 R)
• M12: 9,043,191 km (0.118 R)
• M13: 11,225,675 km (0.066 R)
• M14: 11,693,766 km (0.07 R)
• M15: 12,630,847 km (0.05 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 987.3

Radius: 12.4

Gravity: 6.42 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 2.23 AU - 2.31 AU

Year: 2208 Days

Day: 9.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 80,263,790 km

• M1: 154,834 km (0.066 R)
• M2: 571,314 km (0.069 R)
• M3: 995,723 km (0.083 R)
• M4: 1,477,429 km (0.099 R)
• M5: 1,895,405 km (0.091 R)
• M6: 2,393,416 km (0.109 R)
• M7: 4,063,527 km (0.112 R)
• M8: 5,203,463 km (0.074 R)
• M9: 6,518,129 km (0.115 R)
• M10: 7,002,377 km (0.091 R)
• M11: 8,011,265 km (0.093 R)
• M12: 8,601,130 km (0.038 R)
• M13: 9,361,236 km (0.078 R)
• M14: 13,438,526 km (0.058 R)
• M15: 13,990,692 km (0.093 R)
• M16: 14,557,967 km (0.078 R)
• M17: 15,189,719 km (0.117 R)
• M18: 15,890,585 km (0.116 R)
• M19: 17,956,831 km (0.075 R)
• M20: 18,627,179 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.4

Radius: 9.2

Gravity: 11.08 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 2.28 AU - 3.04 AU

Year: 2801 Days

Day: 8 Hours

Environment

Temp: -190 °C

Axial Tilt: 72.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 80,263,790 km

• M1: 114,442 km (0.116 R)
• M2: 451,935 km (0.116 R)
• M3: 921,672 km (0.12 R)
• M4: 1,368,073 km (0.085 R)
• M5: 1,781,860 km (0.092 R)
• M6: 2,152,564 km (0.069 R)
• M7: 2,684,534 km (0.069 R)
• M8: 3,743,687 km (0.053 R)
• M9: 4,356,739 km (0.117 R)
• M10: 5,035,315 km (0.119 R)
• M11: 6,455,298 km (0.057 R)
• M12: 6,840,961 km (0.104 R)
• M13: 7,368,593 km (0.042 R)
• M14: 8,227,584 km (0.109 R)
• M15: 8,932,788 km (0.079 R)
• M16: 10,544,107 km (0.074 R)
• M17: 10,871,576 km (0.115 R)
• M18: 13,646,168 km (0.12 R)
• M19: 15,300,272 km (0.091 R)
• M20: 16,094,786 km (0.063 R)
• M21: 17,196,574 km (0.074 R)
• M22: 22,579,255 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 410.1

Radius: 14

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 5.06 AU - 5.18 AU

Year: 7480 Days

Day: 9.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 80,263,790 km

• M1: 174,730 km (0.117 R)
• M2: 710,440 km (0.074 R)
• M3: 1,934,450 km (0.115 R)
• M4: 7,079,719 km (0.095 R)
• M5: 7,877,076 km (0.118 R)
• M6: 8,533,811 km (0.056 R)
• M7: 9,480,017 km (0.061 R)
• M8: 10,725,270 km (0.117 R)
• M9: 12,637,879 km (0.107 R)
• M10: 13,702,567 km (0.104 R)
• M11: 14,596,713 km (0.111 R)
• M12: 17,129,405 km (0.073 R)
• M13: 21,607,168 km (0.108 R)
• M14: 22,283,201 km (0.067 R)
• M15: 24,235,154 km (0.09 R)
• M16: 24,720,151 km (0.088 R)
• M17: 25,793,216 km (0.099 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.9

Radius: 8.6

Gravity: 8.76 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 4.36 AU - 6.26 AU

Year: 7901 Days

Day: 6.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 80,263,790 km

• M1: 106,962 km (0.119 R)
• M2: 977,921 km (0.081 R)
• M3: 1,278,763 km (0.105 R)
• M4: 1,901,090 km (0.088 R)
• M5: 2,360,056 km (0.1 R)
• M6: 3,273,351 km (0.062 R)
• M7: 3,570,004 km (0.116 R)
• M8: 3,934,574 km (0.083 R)
• M9: 4,597,741 km (0.06 R)
• M10: 7,340,169 km (0.079 R)
• M11: 8,554,605 km (0.034 R)
• M12: 9,481,064 km (0.09 R)
• M13: 10,039,663 km (0.106 R)
• M14: 10,619,953 km (0.12 R)
• M15: 12,331,502 km (0.114 R)
• M16: 12,661,365 km (0.084 R)
• M17: 13,686,560 km (0.079 R)
• M18: 14,339,704 km (0.112 R)
• M19: 15,644,048 km (0.116 R)
• M20: 20,486,531 km (0.068 R)
• M21: 20,949,686 km (0.085 R)
• M22: 22,057,608 km (0.063 R)
• M23: 22,872,467 km (0.11 R)
• M24: 24,648,942 km (0.111 R)
• M25: 25,172,983 km (0.095 R)
• M26: 27,905,239 km (0.106 R)
• M27: 35,588,436 km (0.103 R)
• M28: 37,852,450 km (0.088 R)
• M29: 38,433,189 km (0.068 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 993

Radius: 5.5

Gravity: 32.83 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 10.33 AU - 10.91 AU

Year: 22346 Days

Day: 22 Hours

Environment

Temp: -239 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 80,263,790 km

• M1: 68,965 km (0.067 R)
• M2: 301,440 km (0.086 R)
• M3: 703,858 km (0.114 R)
• M4: 1,137,991 km (0.091 R)
• M5: 1,773,184 km (0.079 R)
• M6: 1,995,336 km (0.085 R)
• M7: 2,697,250 km (0.082 R)
• M8: 4,284,184 km (0.11 R)
• M9: 6,835,426 km (0.093 R)
• M10: 7,181,147 km (0.116 R)
• M11: 11,650,233 km (0.113 R)
• M12: 12,504,288 km (0.101 R)
• M13: 13,629,563 km (0.089 R)
• M14: 16,602,970 km (0.085 R)
• M15: 17,137,184 km (0.066 R)
• M16: 18,523,059 km (0.088 R)
• M17: 21,306,776 km (0.108 R)
• M18: 21,725,949 km (0.063 R)
• M19: 23,568,995 km (0.088 R)
• M20: 23,904,693 km (0.068 R)
• M21: 24,243,532 km (0.073 R)
• M22: 31,038,716 km (0.106 R)
• M23: 42,039,545 km (0.085 R)
• M24: 43,364,832 km (0.092 R)
• M25: 46,098,584 km (0.05 R)
• M26: 54,398,872 km (0.099 R)
• M27: 55,378,439 km (0.098 R)
• M28: 65,167,076 km (0.04 R)
• M29: 66,049,853 km (0.101 R)
• M30: 77,025,849 km (0.077 R)
• M31: 78,508,963 km (0.042 R)
• M32: 80,263,147 km (0.082 R)
• M33: 81,787,400 km (0.075 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 581.2

Radius: 6

Gravity: 16.14 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 10.22 AU - 11.76 AU

Year: 23524 Days

Day: 18.8 Hours

Environment

Temp: -239 °C

Axial Tilt: 123 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 80,263,790 km

• M1: 76,445 km (0.095 R)
• M2: 489,783 km (0.118 R)
• M3: 827,875 km (0.108 R)
• M4: 1,419,983 km (0.069 R)
• M5: 1,970,354 km (0.107 R)
• M6: 2,629,033 km (0.111 R)
• M7: 3,483,386 km (0.075 R)
• M8: 3,815,942 km (0.111 R)
• M9: 4,136,381 km (0.114 R)
• M10: 4,440,065 km (0.075 R)
• M11: 4,650,699 km (0.094 R)
• M12: 5,206,754 km (0.115 R)
• M13: 5,561,002 km (0.041 R)
• M14: 6,100,900 km (0.111 R)
• M15: 8,614,444 km (0.075 R)
• M16: 8,832,557 km (0.116 R)
• M17: 12,013,008 km (0.062 R)
• M18: 13,055,556 km (0.114 R)
• M19: 14,691,857 km (0.118 R)
• M20: 15,082,009 km (0.062 R)
• M21: 15,559,226 km (0.093 R)
• M22: 18,727,260 km (0.1 R)
• M23: 20,606,957 km (0.117 R)
• M24: 23,024,010 km (0.047 R)
• M25: 29,756,363 km (0.084 R)
• M26: 36,969,673 km (0.061 R)
• M27: 42,218,613 km (0.071 R)
• M28: 44,612,628 km (0.113 R)
• M29: 47,603,090 km (0.105 R)
• M30: 51,436,086 km (0.04 R)
• M31: 52,697,496 km (0.034 R)
• M32: 54,535,156 km (0.102 R)
• M33: 55,094,801 km (0.067 R)
• M34: 56,796,328 km (0.05 R)
• M35: 70,137,765 km (0.053 R)
• M36: 78,118,063 km (0.06 R)
• M37: 80,263,746 km (0.058 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 232 - 14,998 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit