🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63.4

Radius: 10.9

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.68 AU - 0.98 AU

Year: 481 Days

Day: 12.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 66,871,890 km

• M1: 135,685 km (0.07 R)
• M2: 515,215 km (0.109 R)
• M3: 889,060 km (0.094 R)
• M4: 1,487,302 km (0.1 R)
• M5: 2,080,607 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.3

Radius: 14.3

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.11 AU - 1.19 AU

Year: 784 Days

Day: 7 Hours

Environment

Temp: -167 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,871,890 km

• M1: 178,321 km (0.101 R)
• M2: 624,721 km (0.105 R)
• M3: 1,480,720 km (0.096 R)
• M4: 2,106,188 km (0.117 R)
• M5: 2,763,222 km (0.11 R)
• M6: 3,390,187 km (0.099 R)
• M7: 4,863,427 km (0.075 R)
• M8: 5,458,228 km (0.077 R)
• M9: 6,060,958 km (0.115 R)
• M10: 8,091,300 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384.8

Radius: 9.5

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.12 AU - 1.8 AU

Year: 1122 Days

Day: 7.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,871,890 km

• M1: 118,182 km (0.077 R)
• M2: 660,923 km (0.09 R)
• M3: 967,898 km (0.05 R)
• M4: 1,563,896 km (0.103 R)
• M5: 1,898,995 km (0.111 R)
• M6: 2,240,677 km (0.097 R)
• M7: 2,776,536 km (0.09 R)
• M8: 3,166,538 km (0.063 R)
• M9: 3,507,472 km (0.113 R)
• M10: 4,120,075 km (0.078 R)
• M11: 4,527,580 km (0.086 R)
• M12: 4,926,108 km (0.052 R)
• M13: 5,404,672 km (0.062 R)
• M14: 6,139,048 km (0.099 R)
• M15: 6,649,925 km (0.052 R)
• M16: 6,960,939 km (0.105 R)
• M17: 7,879,021 km (0.099 R)
• M18: 8,638,529 km (0.109 R)
• M19: 9,171,397 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.4

Radius: 11.7

Gravity: 5.97 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.67 AU - 1.79 AU

Year: 1447 Days

Day: 14.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 66,871,890 km

• M1: 145,559 km (0.095 R)
• M2: 781,649 km (0.109 R)
• M3: 1,187,508 km (0.117 R)
• M4: 1,566,738 km (0.081 R)
• M5: 3,036,986 km (0.104 R)
• M6: 3,450,176 km (0.03 R)
• M7: 3,883,561 km (0.087 R)
• M8: 4,760,204 km (0.076 R)
• M9: 5,673,649 km (0.068 R)
• M10: 6,208,312 km (0.112 R)
• M11: 8,571,060 km (0.113 R)
• M12: 9,150,902 km (0.08 R)
• M13: 9,562,595 km (0.079 R)
• M14: 10,560,114 km (0.066 R)
• M15: 11,048,700 km (0.063 R)
• M16: 12,374,885 km (0.04 R)
• M17: 14,011,486 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 890.4

Radius: 13

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.42 AU - 2.06 AU

Year: 1459 Days

Day: 10.3 Hours

Environment

Temp: -174 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,871,890 km

• M1: 161,715 km (0.036 R)
• M2: 1,157,140 km (0.083 R)
• M3: 1,921,884 km (0.069 R)
• M4: 2,406,880 km (0.114 R)
• M5: 3,781,236 km (0.116 R)
• M6: 5,016,765 km (0.098 R)
• M7: 5,625,778 km (0.057 R)
• M8: 6,066,642 km (0.107 R)
• M9: 7,669,284 km (0.112 R)
• M10: 8,479,207 km (0.065 R)
• M11: 12,571,906 km (0.08 R)
• M12: 13,126,914 km (0.109 R)
• M13: 14,074,168 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 992.4

Radius: 9.4

Gravity: 11.23 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.11 AU - 3.09 AU

Year: 2666 Days

Day: 5.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,871,890 km

• M1: 117,883 km (0.036 R)
• M2: 410,646 km (0.11 R)
• M3: 1,150,856 km (0.075 R)
• M4: 1,820,307 km (0.11 R)
• M5: 2,194,302 km (0.081 R)
• M6: 3,029,357 km (0.102 R)
• M7: 4,233,769 km (0.071 R)
• M8: 5,731,543 km (0.059 R)
• M9: 6,085,641 km (0.075 R)
• M10: 6,541,765 km (0.075 R)
• M11: 9,357,496 km (0.118 R)
• M12: 10,844,798 km (0.103 R)
• M13: 11,261,129 km (0.095 R)
• M14: 11,601,764 km (0.09 R)
• M15: 12,483,793 km (0.102 R)
• M16: 13,080,539 km (0.092 R)
• M17: 13,504,798 km (0.082 R)
• M18: 13,841,094 km (0.112 R)
• M19: 15,346,049 km (0.032 R)
• M20: 16,354,039 km (0.095 R)
• M21: 16,901,867 km (0.071 R)
• M22: 18,856,662 km (0.098 R)
• M23: 20,199,004 km (0.079 R)
• M24: 22,464,364 km (0.074 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 597

Radius: 14.7

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 4.25 AU - 4.27 AU

Year: 5590 Days

Day: 14.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,871,890 km

• M1: 187,895 km (0.109 R)
• M2: 665,411 km (0.118 R)
• M3: 1,176,138 km (0.068 R)
• M4: 1,891,216 km (0.095 R)
• M5: 2,707,871 km (0.045 R)
• M6: 3,472,316 km (0.12 R)
• M7: 4,401,917 km (0.099 R)
• M8: 5,549,483 km (0.07 R)
• M9: 6,147,425 km (0.078 R)
• M10: 6,921,744 km (0.075 R)
• M11: 8,744,145 km (0.095 R)
• M12: 10,507,455 km (0.088 R)
• M13: 11,238,091 km (0.097 R)
• M14: 12,297,992 km (0.111 R)
• M15: 14,954,102 km (0.099 R)
• M16: 15,938,456 km (0.117 R)
• M17: 16,842,626 km (0.056 R)
• M18: 19,353,776 km (0.097 R)
• M19: 22,625,631 km (0.113 R)
• M20: 24,392,531 km (0.092 R)
• M21: 25,269,474 km (0.096 R)
• M22: 26,415,693 km (0.067 R)
• M23: 29,254,911 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 13.5

Radius: 4.3

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 5.75 AU - 8.49 AU

Year: 12080 Days

Day: 21.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 72.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,871,890 km

• M1: 54,304 km (0.034 R)
• M2: 271,371 km (0.054 R)
• M3: 1,342,790 km (0.109 R)
• M4: 1,681,779 km (0.075 R)
• M5: 1,828,086 km (0.119 R)
• M6: 2,383,094 km (0.103 R)
• M7: 10,827,146 km (0.05 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 686.8

Radius: 4.4

Gravity: 35.48 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 8.64 AU - 8.86 AU

Year: 16457 Days

Day: 16.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,871,890 km

• M1: 54,753 km (0.046 R)
• M2: 825,930 km (0.103 R)
• M3: 4,427,947 km (0.089 R)
• M4: 7,915,672 km (0.064 R)
• M5: 8,762,546 km (0.093 R)
• M6: 9,341,789 km (0.114 R)
• M7: 10,172,206 km (0.115 R)
• M8: 16,524,581 km (0.119 R)
• M9: 17,735,127 km (0.051 R)
• M10: 23,170,017 km (0.103 R)
• M11: 25,098,184 km (0.088 R)
• M12: 29,968,642 km (0.055 R)
• M13: 33,501,097 km (0.069 R)
• M14: 37,030,559 km (0.096 R)
• M15: 37,847,065 km (0.11 R)
• M16: 38,814,963 km (0.06 R)
• M17: 56,263,460 km (0.116 R)
• M18: 60,660,441 km (0.072 R)
• M19: 66,073,340 km (0.107 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 393 - 11,564 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit