🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.8

Radius: 12.5

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.49 AU - 0.65 AU

Year: 287 Days

Day: 12.9 Hours

Environment

Temp: -147 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,378,148 km

• M1: 155,432 km (0.038 R)
• M2: 593,006 km (0.09 R)
• M3: 1,080,695 km (0.111 R)
• M4: 2,048,743 km (0.077 R)
• M5: 2,438,445 km (0.109 R)
• M6: 2,998,989 km (0.118 R)
• M7: 3,494,756 km (0.095 R)
• M8: 3,994,862 km (0.053 R)
• M9: 4,556,302 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 459.8

Radius: 8.2

Gravity: 6.84 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.57 AU - 0.89 AU

Year: 416 Days

Day: 12.9 Hours

Environment

Temp: -164 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,378,148 km

• M1: 102,475 km (0.077 R)
• M2: 505,491 km (0.093 R)
• M3: 784,042 km (0.119 R)
• M4: 1,395,898 km (0.08 R)
• M5: 1,853,817 km (0.057 R)
• M6: 2,453,405 km (0.108 R)
• M7: 2,863,602 km (0.094 R)
• M8: 3,748,623 km (0.115 R)
• M9: 4,523,989 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.1

Radius: 9.6

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.61 AU - 0.93 AU

Year: 451 Days

Day: 13.7 Hours

Environment

Temp: -170 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 70,378,148 km

• M1: 119,379 km (0.119 R)
• M2: 516,711 km (0.09 R)
• M3: 1,021,753 km (0.056 R)
• M4: 1,380,190 km (0.086 R)
• M5: 1,761,665 km (0.053 R)
• M6: 2,082,103 km (0.031 R)
• M7: 2,484,372 km (0.103 R)
• M8: 2,966,975 km (0.091 R)
• M9: 3,446,286 km (0.081 R)
• M10: 3,836,138 km (0.105 R)
• M11: 4,144,759 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.3

Radius: 12.9

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.94 AU - 1.96 AU

Year: 1816 Days

Day: 11.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,378,148 km

• M1: 161,267 km (0.12 R)
• M2: 834,008 km (0.118 R)
• M3: 1,306,588 km (0.073 R)
• M4: 1,770,640 km (0.075 R)
• M5: 2,590,736 km (0.082 R)
• M6: 2,998,839 km (0.066 R)
• M7: 4,148,199 km (0.071 R)
• M8: 4,772,770 km (0.065 R)
• M9: 5,237,870 km (0.091 R)
• M10: 5,756,526 km (0.092 R)
• M11: 6,259,773 km (0.068 R)
• M12: 6,871,030 km (0.088 R)
• M13: 9,041,396 km (0.067 R)
• M14: 10,864,396 km (0.03 R)
• M15: 12,443,102 km (0.08 R)
• M16: 13,042,541 km (0.113 R)
• M17: 13,703,015 km (0.077 R)
• M18: 14,255,929 km (0.103 R)

Asteroid Belt

Center: 2.21 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.7

Radius: 8.6

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 1.91 AU - 3.01 AU

Year: 2573 Days

Day: 14.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 70,378,148 km

• M1: 107,860 km (0.089 R)
• M2: 417,677 km (0.107 R)
• M3: 730,486 km (0.098 R)
• M4: 1,006,943 km (0.102 R)
• M5: 1,791,435 km (0.063 R)
• M6: 2,672,416 km (0.081 R)
• M7: 3,073,638 km (0.035 R)
• M8: 3,656,322 km (0.082 R)
• M9: 4,691,688 km (0.116 R)
• M10: 5,222,312 km (0.111 R)
• M11: 7,329,548 km (0.028 R)
• M12: 7,729,124 km (0.038 R)
• M13: 8,317,642 km (0.059 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 738.1

Radius: 13.9

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 2.4 AU - 3.42 AU

Year: 3310 Days

Day: 6 Hours

Environment

Temp: -210 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 70,378,148 km

• M1: 175,478 km (0.11 R)
• M2: 622,178 km (0.038 R)
• M3: 1,066,184 km (0.045 R)
• M4: 2,786,709 km (0.07 R)
• M5: 3,747,277 km (0.101 R)
• M6: 4,564,381 km (0.111 R)
• M7: 6,320,660 km (0.097 R)
• M8: 7,288,259 km (0.081 R)
• M9: 9,786,094 km (0.108 R)
• M10: 11,594,583 km (0.117 R)
• M11: 13,519,908 km (0.103 R)
• M12: 14,156,895 km (0.116 R)
• M13: 18,290,284 km (0.053 R)
• M14: 21,214,624 km (0.097 R)
• M15: 23,375,714 km (0.064 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168.3

Radius: 8.8

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 2.74 AU - 3.7 AU

Year: 3853 Days

Day: 7.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 70,378,148 km

• M1: 109,655 km (0.098 R)
• M2: 482,603 km (0.057 R)
• M3: 757,713 km (0.096 R)
• M4: 1,082,341 km (0.088 R)
• M5: 2,215,993 km (0.075 R)
• M6: 3,173,868 km (0.085 R)
• M7: 3,728,278 km (0.057 R)
• M8: 4,345,669 km (0.078 R)
• M9: 5,295,765 km (0.047 R)
• M10: 5,688,609 km (0.072 R)
• M11: 6,377,956 km (0.047 R)
• M12: 6,716,496 km (0.033 R)
• M13: 7,373,081 km (0.067 R)
• M14: 7,952,473 km (0.049 R)
• M15: 8,375,686 km (0.084 R)
• M16: 9,433,193 km (0.105 R)
• M17: 10,327,190 km (0.109 R)
• M18: 11,276,538 km (0.077 R)
• M19: 11,580,072 km (0.108 R)
• M20: 12,362,768 km (0.082 R)
• M21: 12,890,101 km (0.088 R)
• M22: 15,196,900 km (0.06 R)
• M23: 15,755,049 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 451.3

Radius: 5.8

Gravity: 13.42 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 6.99 AU - 7.63 AU

Year: 13180 Days

Day: 15.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 70,378,148 km

• M1: 90,058 km (0.103 R)
• M2: 394,340 km (0.068 R)
• M3: 826,528 km (0.073 R)
• M4: 1,159,383 km (0.103 R)
• M5: 1,790,836 km (0.06 R)
• M6: 2,407,927 km (0.097 R)
• M7: 2,670,322 km (0.082 R)
• M8: 3,522,731 km (0.099 R)
• M9: 4,726,246 km (0.063 R)
• M10: 5,574,465 km (0.115 R)
• M11: 5,962,223 km (0.111 R)
• M12: 6,596,817 km (0.102 R)
• M13: 6,831,237 km (0.067 R)
• M14: 7,441,596 km (0.105 R)
• M15: 8,356,387 km (0.11 R)
• M16: 14,662,835 km (0.073 R)
• M17: 16,023,578 km (0.109 R)
• M18: 16,519,046 km (0.068 R)
• M19: 18,219,225 km (0.113 R)
• M20: 18,681,184 km (0.111 R)
• M21: 20,442,100 km (0.062 R)
• M22: 22,223,512 km (0.096 R)
• M23: 24,290,505 km (0.078 R)
• M24: 25,038,495 km (0.07 R)
• M25: 29,534,659 km (0.077 R)
• M26: 29,958,470 km (0.118 R)
• M27: 32,362,807 km (0.101 R)
• M28: 33,727,139 km (0.094 R)
• M29: 36,448,175 km (0.053 R)
• M30: 36,691,571 km (0.06 R)
• M31: 37,304,623 km (0.108 R)
• M32: 38,930,452 km (0.104 R)
• M33: 40,083,253 km (0.118 R)
• M34: 40,472,507 km (0.087 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 774.8

Radius: 4.5

Gravity: 38.26 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 9.46 AU - 9.5 AU

Year: 19464 Days

Day: 20.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 70,378,148 km

• M1: 55,950 km (0.116 R)
• M2: 380,577 km (0.115 R)
• M3: 818,450 km (0.103 R)
• M4: 1,091,616 km (0.029 R)
• M5: 1,392,008 km (0.105 R)
• M6: 2,177,696 km (0.086 R)
• M7: 2,677,652 km (0.113 R)
• M8: 3,306,562 km (0.078 R)
• M9: 3,777,346 km (0.114 R)
• M10: 4,600,434 km (0.086 R)
• M11: 6,819,868 km (0.064 R)
• M12: 7,777,892 km (0.045 R)
• M13: 8,289,068 km (0.096 R)
• M14: 9,839,501 km (0.095 R)
• M15: 10,016,325 km (0.049 R)
• M16: 17,284,538 km (0.116 R)
• M17: 20,355,483 km (0.085 R)
• M18: 23,771,251 km (0.116 R)
• M19: 25,837,048 km (0.116 R)
• M20: 27,550,093 km (0.109 R)
• M21: 27,784,065 km (0.05 R)
• M22: 29,216,015 km (0.116 R)
• M23: 31,454,897 km (0.109 R)
• M24: 34,073,907 km (0.081 R)
• M25: 36,270,901 km (0.103 R)
• M26: 37,403,956 km (0.062 R)
• M27: 39,591,824 km (0.102 R)
• M28: 39,740,674 km (0.081 R)
• M29: 40,792,796 km (0.102 R)
• M30: 42,327,970 km (0.086 R)
• M31: 44,220,532 km (0.102 R)
• M32: 47,666,818 km (0.118 R)
• M33: 55,459,371 km (0.116 R)
• M34: 65,712,510 km (0.072 R)
• M35: 68,673,950 km (0.07 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 376.5

Radius: 6

Gravity: 10.46 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 9.69 AU - 12.11 AU

Year: 23998 Days

Day: 16.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 70,378,148 km

• M1: 79,137 km (0.111 R)
• M2: 288,873 km (0.111 R)
• M3: 484,697 km (0.105 R)
• M4: 803,041 km (0.102 R)
• M5: 1,443,021 km (0.083 R)
• M6: 2,128,778 km (0.118 R)
• M7: 5,941,728 km (0.077 R)
• M8: 8,705,250 km (0.094 R)
• M9: 15,643,001 km (0.108 R)
• M10: 16,427,791 km (0.107 R)
• M11: 17,906,117 km (0.113 R)
• M12: 33,823,779 km (0.113 R)
• M13: 37,436,867 km (0.101 R)
• M14: 46,529,575 km (0.112 R)
• M15: 50,645,611 km (0.12 R)
• M16: 53,931,379 km (0.12 R)
• M17: 60,732,547 km (0.09 R)
• M18: 61,693,414 km (0.117 R)
• M19: 62,274,751 km (0.11 R)
• M20: 64,238,822 km (0.083 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 346 - 12,867 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit