🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.08

Radius: 1.03

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.54 AU - 0.8 AU

Year: 349 Days

Day: 45.1 Hours

Environment

Temp: -134 °C

Axial Tilt: 12.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 1.63 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 803.7

Radius: 9.6

Gravity: 8.72 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 2.46 AU - 2.72 AU

Year: 2650 Days

Day: 5.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 23,467,934 km

• M1: 119,379 km (0.083 R)
• M2: 424,409 km (0.089 R)
• M3: 1,612,515 km (0.063 R)
• M4: 2,398,652 km (0.116 R)
• M5: 3,330,946 km (0.053 R)
• M6: 3,980,500 km (0.061 R)
• M7: 4,335,645 km (0.095 R)
• M8: 5,014,521 km (0.103 R)
• M9: 5,815,019 km (0.092 R)
• M10: 6,190,958 km (0.058 R)
• M11: 6,902,895 km (0.082 R)
• M12: 8,022,784 km (0.05 R)
• M13: 8,455,571 km (0.05 R)
• M14: 9,223,457 km (0.066 R)
• M15: 9,661,629 km (0.118 R)
• M16: 10,151,861 km (0.057 R)
• M17: 13,495,822 km (0.1 R)
• M18: 14,740,028 km (0.068 R)
• M19: 15,903,151 km (0.109 R)
• M20: 17,621,582 km (0.098 R)
• M21: 18,872,669 km (0.115 R)
• M22: 20,672,780 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950

Radius: 9.1

Gravity: 11.47 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 3.76 AU - 4.16 AU

Year: 5010 Days

Day: 7.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 23,467,934 km

• M1: 113,246 km (0.092 R)
• M2: 402,717 km (0.105 R)
• M3: 796,908 km (0.038 R)
• M4: 1,124,078 km (0.082 R)
• M5: 1,787,994 km (0.075 R)
• M6: 2,215,993 km (0.081 R)
• M7: 2,603,003 km (0.053 R)
• M8: 3,602,466 km (0.087 R)
• M9: 5,346,478 km (0.071 R)
• M10: 6,336,966 km (0.101 R)
• M11: 6,807,002 km (0.108 R)
• M12: 8,881,925 km (0.093 R)
• M13: 10,130,768 km (0.034 R)
• M14: 11,105,548 km (0.114 R)
• M15: 11,591,142 km (0.086 R)
• M16: 15,218,143 km (0.11 R)
• M17: 16,000,390 km (0.09 R)
• M18: 17,579,545 km (0.114 R)
• M19: 19,538,529 km (0.11 R)
• M20: 21,564,084 km (0.114 R)
• M21: 28,564,965 km (0.074 R)
• M22: 32,623,705 km (0.052 R)
• M23: 33,720,557 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 760.5

Radius: 9.4

Gravity: 8.61 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 4.98 AU - 6.42 AU

Year: 8653 Days

Day: 9.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 23,467,934 km

• M1: 116,986 km (0.075 R)
• M2: 622,178 km (0.092 R)
• M3: 1,135,747 km (0.08 R)
• M4: 1,430,305 km (0.101 R)
• M5: 1,995,037 km (0.085 R)
• M6: 5,503,107 km (0.118 R)
• M7: 5,940,531 km (0.092 R)
• M8: 6,809,097 km (0.113 R)
• M9: 9,348,820 km (0.106 R)
• M10: 9,826,336 km (0.12 R)
• M11: 11,091,186 km (0.06 R)
• M12: 11,790,407 km (0.111 R)
• M13: 12,923,012 km (0.09 R)
• M14: 14,250,843 km (0.081 R)
• M15: 16,205,339 km (0.106 R)
• M16: 19,004,764 km (0.116 R)
• M17: 21,861,335 km (0.045 R)
• M18: 23,391,721 km (0.117 R)
• M19: 28,409,982 km (0.054 R)
• M20: 29,412,138 km (0.117 R)
• M21: 30,127,366 km (0.085 R)
• M22: 30,749,693 km (0.093 R)
• M23: 33,325,020 km (0.102 R)
• M24: 36,157,057 km (0.092 R)
• M25: 36,977,901 km (0.051 R)
• M26: 42,037,002 km (0.097 R)
• M27: 43,075,211 km (0.079 R)
• M28: 43,600,748 km (0.052 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.2

Radius: 13.5

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 5.01 AU - 6.75 AU

Year: 9066 Days

Day: 11.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 23,467,934 km

• M1: 167,849 km (0.111 R)
• M2: 671,994 km (0.057 R)
• M3: 1,362,986 km (0.062 R)
• M4: 1,883,587 km (0.039 R)
• M5: 2,364,694 km (0.091 R)
• M6: 2,850,587 km (0.068 R)
• M7: 3,648,692 km (0.103 R)
• M8: 4,406,256 km (0.093 R)
• M9: 5,385,075 km (0.044 R)
• M10: 6,039,116 km (0.103 R)
• M11: 7,849,999 km (0.072 R)
• M12: 9,330,569 km (0.081 R)
• M13: 10,183,426 km (0.04 R)
• M14: 11,635,124 km (0.1 R)
• M15: 12,252,963 km (0.099 R)
• M16: 13,220,861 km (0.088 R)
• M17: 13,836,905 km (0.088 R)
• M18: 16,177,215 km (0.052 R)
• M19: 18,285,797 km (0.113 R)
• M20: 20,349,798 km (0.078 R)
• M21: 21,096,292 km (0.095 R)
• M22: 25,791,421 km (0.116 R)
• M23: 28,381,708 km (0.065 R)
• M24: 29,978,366 km (0.076 R)
• M25: 31,042,905 km (0.108 R)
• M26: 33,762,743 km (0.099 R)
• M27: 36,637,715 km (0.056 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 62.2

Radius: 3.7

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 8.38 AU - 10.02 AU

Year: 17743 Days

Day: 20.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 23,467,934 km

• M1: 177,573 km (0.109 R)
• M2: 302,038 km (0.096 R)
• M3: 687,552 km (0.074 R)
• M4: 831,016 km (0.105 R)
• M5: 2,415,407 km (0.118 R)
• M6: 2,880,956 km (0.086 R)
• M7: 4,253,067 km (0.041 R)
• M8: 5,349,021 km (0.093 R)
• M9: 5,885,031 km (0.077 R)
• M10: 6,788,452 km (0.12 R)
• M11: 8,427,895 km (0.084 R)
• M12: 9,193,088 km (0.105 R)
• M13: 31,104,389 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 142.2

Radius: 6.6

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 8.06 AU - 11.66 AU

Year: 19686 Days

Day: 16.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 23,467,934 km

• M1: 83,476 km (0.074 R)
• M2: 623,524 km (0.061 R)
• M3: 929,003 km (0.082 R)
• M4: 1,145,022 km (0.055 R)
• M5: 1,407,716 km (0.032 R)
• M6: 1,893,460 km (0.088 R)
• M7: 2,972,809 km (0.095 R)
• M8: 6,302,708 km (0.065 R)
• M9: 6,896,013 km (0.069 R)
• M10: 10,182,229 km (0.077 R)
• M11: 12,586,417 km (0.052 R)
• M12: 13,167,904 km (0.094 R)
• M13: 15,344,702 km (0.094 R)
• M14: 15,740,538 km (0.04 R)
• M15: 17,463,607 km (0.113 R)
• M16: 18,186,763 km (0.059 R)
• M17: 19,005,063 km (0.118 R)
• M18: 23,729,813 km (0.069 R)
• M19: 25,894,793 km (0.112 R)
• M20: 27,991,856 km (0.106 R)
• M21: 30,717,080 km (0.056 R)
• M22: 31,663,437 km (0.111 R)
• M23: 33,503,640 km (0.096 R)
• M24: 38,595,652 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 14.9

Radius: 5.9

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 9.84 AU - 12.18 AU

Year: 23228 Days

Day: 16.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 23,467,934 km

• M1: 76,893 km (0.064 R)
• M2: 756,965 km (0.095 R)
• M3: 1,025,643 km (0.105 R)
• M4: 2,395,361 km (0.047 R)
• M5: 2,893,672 km (0.074 R)
• M6: 3,497,449 km (0.119 R)
• M7: 10,795,431 km (0.062 R)
• M8: 11,047,653 km (0.109 R)
• M9: 15,425,635 km (0.099 R)
• M10: 17,528,981 km (0.099 R)
• M11: 19,012,543 km (0.115 R)
• M12: 23,397,855 km (0.057 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 471 - 10,608 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit