🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 87.6

Radius: 11.9

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.43 AU - 0.65 AU

Year: 265 Days

Day: 11.4 Hours

Environment

Temp: -151 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 62,586,036 km

• M1: 147,952 km (0.108 R)
• M2: 551,867 km (0.11 R)
• M3: 931,097 km (0.117 R)
• M4: 1,453,643 km (0.058 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161.8

Radius: 8.6

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.8 AU - 1.04 AU

Year: 588 Days

Day: 9.3 Hours

Environment

Temp: -164 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 62,586,036 km

• M1: 108,309 km (0.092 R)
• M2: 393,293 km (0.117 R)
• M3: 799,750 km (0.056 R)
• M4: 1,206,357 km (0.087 R)
• M5: 1,494,932 km (0.102 R)
• M6: 1,816,118 km (0.057 R)
• M7: 2,256,235 km (0.034 R)
• M8: 2,709,666 km (0.086 R)
• M9: 3,212,614 km (0.079 R)
• M10: 3,480,993 km (0.093 R)
• M11: 3,834,941 km (0.12 R)
• M12: 4,225,392 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418.1

Radius: 10.8

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.95 AU - 1.39 AU

Year: 844 Days

Day: 6.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 62,586,036 km

• M1: 134,339 km (0.105 R)
• M2: 493,075 km (0.106 R)
• M3: 839,543 km (0.097 R)
• M4: 1,318,256 km (0.054 R)
• M5: 2,102,897 km (0.111 R)
• M6: 2,693,210 km (0.089 R)
• M7: 3,262,580 km (0.092 R)
• M8: 3,699,406 km (0.096 R)
• M9: 4,175,127 km (0.081 R)
• M10: 5,481,715 km (0.076 R)
• M11: 5,909,116 km (0.069 R)
• M12: 7,572,046 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73.1

Radius: 13.6

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.48 AU - 1.74 AU

Year: 1362 Days

Day: 10.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 62,586,036 km

• M1: 169,195 km (0.089 R)
• M2: 621,430 km (0.118 R)
• M3: 1,147,864 km (0.085 R)
• M4: 1,667,119 km (0.1 R)
• M5: 2,706,973 km (0.047 R)
• M6: 3,142,004 km (0.101 R)
• M7: 3,648,991 km (0.109 R)
• M8: 4,349,259 km (0.101 R)
• M9: 4,784,290 km (0.115 R)
• M10: 5,345,132 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 92.3

Radius: 11.9

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.69 AU - 1.91 AU

Year: 1610 Days

Day: 5.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 62,586,036 km

• M1: 147,952 km (0.095 R)
• M2: 597,195 km (0.099 R)
• M3: 1,060,200 km (0.088 R)
• M4: 1,603,988 km (0.032 R)
• M5: 2,007,304 km (0.068 R)
• M6: 2,592,082 km (0.103 R)
• M7: 3,130,186 km (0.111 R)
• M8: 3,769,118 km (0.088 R)
• M9: 4,252,020 km (0.09 R)
• M10: 4,775,912 km (0.064 R)
• M11: 5,412,301 km (0.101 R)
• M12: 7,020,329 km (0.068 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 80.6

Radius: 11.7

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 4.35 AU - 5.25 AU

Year: 7013 Days

Day: 13.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 62,586,036 km

• M1: 146,756 km (0.111 R)
• M2: 759,658 km (0.059 R)
• M3: 1,367,474 km (0.107 R)
• M4: 1,901,090 km (0.092 R)
• M5: 2,270,148 km (0.12 R)
• M6: 3,324,214 km (0.114 R)
• M7: 4,039,741 km (0.119 R)
• M8: 5,677,838 km (0.108 R)
• M9: 7,905,649 km (0.083 R)
• M10: 8,741,004 km (0.116 R)
• M11: 9,145,965 km (0.097 R)
• M12: 11,243,776 km (0.048 R)
• M13: 12,175,023 km (0.109 R)
• M14: 12,680,813 km (0.1 R)
• M15: 13,779,759 km (0.113 R)
• M16: 14,751,098 km (0.119 R)
• M17: 16,368,999 km (0.105 R)
• M18: 17,778,211 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 37.1

Radius: 4.3

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 5.25 AU - 6.31 AU

Year: 9267 Days

Day: 24.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 62,586,036 km

• M1: 117,434 km (0.096 R)
• M2: 282,291 km (0.043 R)
• M3: 740,809 km (0.115 R)
• M4: 3,840,028 km (0.073 R)
• M5: 4,289,270 km (0.082 R)
• M6: 5,797,366 km (0.087 R)
• M7: 7,361,113 km (0.094 R)
• M8: 7,716,557 km (0.094 R)
• M9: 7,959,804 km (0.104 R)
• M10: 8,429,690 km (0.114 R)
• M11: 8,753,121 km (0.042 R)
• M12: 10,532,288 km (0.05 R)
• M13: 10,718,837 km (0.073 R)
• M14: 11,330,244 km (0.077 R)
• M15: 12,045,621 km (0.077 R)
• M16: 14,786,702 km (0.092 R)
• M17: 16,475,812 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 851.1

Radius: 4.9

Gravity: 35.45 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 6.98 AU - 9.02 AU

Year: 15089 Days

Day: 24.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 62,586,036 km

• M1: 60,886 km (0.066 R)
• M2: 298,747 km (0.115 R)
• M3: 1,531,882 km (0.09 R)
• M4: 1,695,841 km (0.041 R)
• M5: 2,039,917 km (0.077 R)
• M6: 3,327,505 km (0.099 R)
• M7: 5,297,111 km (0.056 R)
• M8: 10,087,384 km (0.108 R)
• M9: 11,955,413 km (0.049 R)
• M10: 12,604,069 km (0.109 R)
• M11: 13,004,393 km (0.079 R)
• M12: 14,472,248 km (0.082 R)
• M13: 18,235,382 km (0.112 R)
• M14: 23,693,012 km (0.12 R)
• M15: 32,949,978 km (0.117 R)
• M16: 35,261,565 km (0.106 R)
• M17: 43,593,568 km (0.119 R)
• M18: 46,374,742 km (0.062 R)
• M19: 47,647,819 km (0.108 R)
• M20: 47,808,637 km (0.085 R)
• M21: 56,856,915 km (0.098 R)
• M22: 66,780,340 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 479.9

Radius: 5.8

Gravity: 14.27 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 8.11 AU - 9.77 AU

Year: 17825 Days

Day: 18.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 62,586,036 km

• M1: 77,791 km (0.087 R)
• M2: 535,710 km (0.034 R)
• M3: 1,037,162 km (0.082 R)
• M4: 2,661,496 km (0.118 R)
• M5: 3,556,839 km (0.093 R)
• M6: 3,780,338 km (0.113 R)
• M7: 4,380,674 km (0.073 R)
• M8: 5,580,898 km (0.107 R)
• M9: 9,537,911 km (0.117 R)
• M10: 10,816,973 km (0.095 R)
• M11: 11,588,449 km (0.107 R)
• M12: 12,206,289 km (0.042 R)
• M13: 12,395,979 km (0.089 R)
• M14: 13,240,309 km (0.116 R)
• M15: 14,261,614 km (0.072 R)
• M16: 17,881,733 km (0.094 R)
• M17: 25,097,436 km (0.085 R)
• M18: 25,507,035 km (0.091 R)
• M19: 29,058,938 km (0.119 R)
• M20: 30,777,069 km (0.064 R)
• M21: 31,839,812 km (0.094 R)
• M22: 48,909,827 km (0.094 R)
• M23: 50,193,526 km (0.107 R)
• M24: 56,074,667 km (0.111 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 221 - 18,323 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit