🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.1

Radius: 9.1

Gravity: 5.79 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.49 AU - 0.73 AU

Year: 329 Days

Day: 6.5 Hours

Environment

Temp: -142 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,003,871 km

• M1: 113,844 km (0.052 R)
• M2: 412,890 km (0.098 R)
• M3: 704,456 km (0.075 R)
• M4: 1,270,684 km (0.051 R)
• M5: 1,802,355 km (0.043 R)
• M6: 2,563,210 km (0.052 R)
• M7: 3,297,885 km (0.069 R)
• M8: 3,853,492 km (0.083 R)
• M9: 4,316,497 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 578.6

Radius: 12.8

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.76 AU - 0.98 AU

Year: 560 Days

Day: 7.9 Hours

Environment

Temp: -164 °C

Axial Tilt: 128.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,003,871 km

• M1: 159,172 km (0.079 R)
• M2: 666,758 km (0.119 R)
• M3: 1,085,333 km (0.039 R)
• M4: 1,672,504 km (0.067 R)
• M5: 2,159,146 km (0.111 R)
• M6: 3,574,342 km (0.076 R)
• M7: 4,163,159 km (0.116 R)
• M8: 4,800,446 km (0.082 R)
• M9: 5,249,838 km (0.059 R)
• M10: 5,797,965 km (0.07 R)
• M11: 6,215,193 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 112.2

Radius: 12

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.85 AU - 2.43 AU

Year: 2161 Days

Day: 6.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,003,871 km

• M1: 153,338 km (0.085 R)
• M2: 771,327 km (0.107 R)
• M3: 1,297,163 km (0.074 R)
• M4: 1,729,651 km (0.108 R)
• M5: 3,136,768 km (0.083 R)
• M6: 3,946,242 km (0.109 R)
• M7: 4,908,157 km (0.071 R)
• M8: 5,425,466 km (0.115 R)
• M9: 6,418,796 km (0.032 R)
• M10: 6,880,006 km (0.029 R)
• M11: 7,771,161 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 655.7

Radius: 14.7

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.9 AU - 3.64 AU

Year: 4082 Days

Day: 7.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 51,003,871 km

• M1: 182,809 km (0.072 R)
• M2: 690,843 km (0.103 R)
• M3: 1,224,309 km (0.048 R)
• M4: 1,761,515 km (0.064 R)
• M5: 2,566,351 km (0.093 R)
• M6: 3,091,141 km (0.062 R)
• M7: 3,606,655 km (0.117 R)
• M8: 4,224,494 km (0.067 R)
• M9: 4,962,760 km (0.09 R)
• M10: 5,592,268 km (0.1 R)
• M11: 6,393,813 km (0.073 R)
• M12: 7,636,971 km (0.097 R)
• M13: 8,156,076 km (0.116 R)
• M14: 9,617,198 km (0.073 R)
• M15: 11,512,903 km (0.069 R)
• M16: 12,058,187 km (0.111 R)
• M17: 15,700,297 km (0.089 R)
• M18: 17,120,579 km (0.076 R)
• M19: 18,012,780 km (0.101 R)
• M20: 19,955,159 km (0.097 R)
• M21: 21,077,891 km (0.118 R)
• M22: 24,999,599 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 27.7

Radius: 11.3

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 3.71 AU - 4.03 AU

Year: 5255 Days

Day: 9 Hours

Environment

Temp: -221 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 51,003,871 km

• M1: 141,071 km (0.106 R)
• M2: 586,124 km (0.085 R)
• M3: 1,494,184 km (0.076 R)
• M4: 3,363,559 km (0.111 R)
• M5: 4,136,531 km (0.055 R)
• M6: 5,274,821 km (0.059 R)
• M7: 5,970,301 km (0.113 R)
• M8: 8,508,828 km (0.106 R)
• M9: 9,553,769 km (0.119 R)
• M10: 10,713,900 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 710.2

Radius: 11.6

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 4.27 AU - 4.39 AU

Year: 6219 Days

Day: 12.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,003,871 km

• M1: 144,811 km (0.086 R)
• M2: 630,854 km (0.096 R)
• M3: 1,397,843 km (0.11 R)
• M4: 2,363,646 km (0.118 R)
• M5: 3,061,969 km (0.097 R)
• M6: 3,504,181 km (0.117 R)
• M7: 4,571,113 km (0.079 R)
• M8: 6,595,321 km (0.098 R)
• M9: 8,134,683 km (0.1 R)
• M10: 10,036,820 km (0.087 R)
• M11: 10,732,151 km (0.097 R)
• M12: 11,911,132 km (0.108 R)
• M13: 15,174,610 km (0.114 R)
• M14: 17,435,033 km (0.082 R)
• M15: 18,922,036 km (0.062 R)
• M16: 19,911,477 km (0.118 R)
• M17: 20,273,055 km (0.067 R)
• M18: 27,378,206 km (0.098 R)
• M19: 28,827,210 km (0.032 R)
• M20: 29,946,951 km (0.09 R)
• M21: 31,387,279 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 283

Radius: 7.3

Gravity: 5.31 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 5.46 AU - 7.58 AU

Year: 11492 Days

Day: 24.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 51,003,871 km

• M1: 94,845 km (0.083 R)
• M2: 417,677 km (0.116 R)
• M3: 859,889 km (0.075 R)
• M4: 1,199,476 km (0.055 R)
• M5: 1,520,812 km (0.099 R)
• M6: 3,723,341 km (0.096 R)
• M7: 4,716,222 km (0.083 R)
• M8: 6,521,420 km (0.111 R)
• M9: 6,843,504 km (0.058 R)
• M10: 7,327,453 km (0.073 R)
• M11: 9,358,693 km (0.114 R)
• M12: 10,001,964 km (0.088 R)
• M13: 12,108,601 km (0.111 R)
• M14: 14,736,737 km (0.108 R)
• M15: 15,543,368 km (0.108 R)
• M16: 15,797,386 km (0.057 R)
• M17: 18,705,867 km (0.097 R)
• M18: 19,725,078 km (0.09 R)
• M19: 20,248,221 km (0.06 R)
• M20: 21,557,502 km (0.063 R)
• M21: 22,353,363 km (0.076 R)
• M22: 22,758,623 km (0.066 R)
• M23: 23,168,821 km (0.11 R)
• M24: 25,119,278 km (0.048 R)
• M25: 27,176,697 km (0.09 R)
• M26: 30,320,945 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 292

Radius: 6

Gravity: 8.11 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 6.63 AU - 9.63 AU

Year: 16001 Days

Day: 20.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 51,003,871 km

• M1: 74,649 km (0.073 R)
• M2: 265,237 km (0.076 R)
• M3: 682,017 km (0.11 R)
• M4: 940,671 km (0.106 R)
• M5: 2,316,673 km (0.09 R)
• M6: 5,422,624 km (0.104 R)
• M7: 8,728,288 km (0.105 R)
• M8: 17,341,236 km (0.113 R)
• M9: 19,165,282 km (0.119 R)
• M10: 20,532,158 km (0.089 R)
• M11: 21,877,043 km (0.115 R)
• M12: 22,834,918 km (0.105 R)
• M13: 26,750,044 km (0.06 R)
• M14: 27,844,801 km (0.12 R)
• M15: 29,490,079 km (0.085 R)
• M16: 41,659,417 km (0.083 R)
• M17: 42,858,892 km (0.088 R)
• M18: 43,263,704 km (0.098 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 301.4

Radius: 3.8

Gravity: 20.87 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 7.56 AU - 9.46 AU

Year: 17136 Days

Day: 23.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 51,003,871 km

• M1: 47,273 km (0.098 R)
• M2: 290,220 km (0.11 R)
• M3: 1,469,649 km (0.038 R)
• M4: 1,821,354 km (0.098 R)
• M5: 2,380,850 km (0.075 R)
• M6: 2,604,499 km (0.096 R)
• M7: 3,537,840 km (0.071 R)
• M8: 6,071,729 km (0.094 R)
• M9: 9,706,658 km (0.096 R)
• M10: 10,224,117 km (0.095 R)
• M11: 12,965,647 km (0.045 R)
• M12: 14,839,211 km (0.054 R)
• M13: 22,943,676 km (0.077 R)
• M14: 25,278,450 km (0.1 R)
• M15: 26,953,348 km (0.104 R)
• M16: 29,978,964 km (0.037 R)
• M17: 30,631,959 km (0.07 R)
• M18: 31,966,372 km (0.108 R)
• M19: 32,305,959 km (0.105 R)
• M20: 35,229,700 km (0.119 R)
• M21: 35,834,973 km (0.072 R)
• M22: 35,956,895 km (0.097 R)
• M23: 42,272,918 km (0.069 R)
• M24: 46,918,829 km (0.047 R)
• M25: 50,046,023 km (0.1 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 179.6

Radius: 5

Gravity: 7.18 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 9.12 AU - 10.64 AU

Year: 21436 Days

Day: 20.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 51,003,871 km

• M1: 62,233 km (0.096 R)
• M2: 428,448 km (0.057 R)
• M3: 658,081 km (0.095 R)
• M4: 848,669 km (0.11 R)
• M5: 1,291,778 km (0.082 R)
• M6: 1,762,861 km (0.055 R)
• M7: 2,190,562 km (0.094 R)
• M8: 3,107,297 km (0.086 R)
• M9: 3,496,701 km (0.082 R)
• M10: 4,056,197 km (0.077 R)
• M11: 6,391,719 km (0.094 R)
• M12: 9,008,335 km (0.094 R)
• M13: 10,631,322 km (0.089 R)
• M14: 11,911,581 km (0.108 R)
• M15: 12,261,789 km (0.04 R)
• M16: 14,975,644 km (0.038 R)
• M17: 20,957,016 km (0.098 R)
• M18: 21,126,211 km (0.065 R)
• M19: 21,467,294 km (0.082 R)
• M20: 21,812,118 km (0.044 R)
• M21: 25,561,938 km (0.086 R)
• M22: 28,252,755 km (0.107 R)
• M23: 30,255,571 km (0.036 R)
• M24: 30,580,198 km (0.091 R)
• M25: 34,072,261 km (0.098 R)
• M26: 35,732,947 km (0.06 R)
• M27: 43,463,118 km (0.101 R)
• M28: 44,710,914 km (0.096 R)
• M29: 49,341,267 km (0.097 R)
• M30: 50,851,159 km (0.078 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 241 - 19,946 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit