🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 944

Radius: 10.3

Gravity: 8.9 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.47 AU - 0.63 AU

Year: 277 Days

Day: 9.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 24,872,783 km

• M1: 128,056 km (0.054 R)
• M2: 637,287 km (0.087 R)
• M3: 967,001 km (0.045 R)
• M4: 1,385,276 km (0.108 R)
• M5: 1,792,930 km (0.108 R)
• M6: 2,140,446 km (0.053 R)
• M7: 2,506,363 km (0.05 R)
• M8: 2,844,753 km (0.069 R)
• M9: 3,376,873 km (0.055 R)
• M10: 4,124,862 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 708.1

Radius: 15

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.54 AU - 0.86 AU

Year: 397 Days

Day: 10.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 24,872,783 km

• M1: 186,549 km (0.117 R)
• M2: 670,498 km (0.081 R)
• M3: 1,370,915 km (0.101 R)
• M4: 2,591,035 km (0.095 R)
• M5: 3,294,893 km (0.074 R)
• M6: 4,177,072 km (0.082 R)
• M7: 5,104,579 km (0.104 R)
• M8: 5,626,077 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 769

Radius: 12.1

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.34 AU - 1.6 AU

Year: 1209 Days

Day: 11.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 24,872,783 km

• M1: 150,495 km (0.082 R)
• M2: 635,941 km (0.085 R)
• M3: 1,028,934 km (0.098 R)
• M4: 1,423,424 km (0.055 R)
• M5: 2,013,139 km (0.11 R)
• M6: 2,671,519 km (0.093 R)
• M7: 3,215,905 km (0.031 R)
• M8: 3,703,894 km (0.116 R)
• M9: 4,188,591 km (0.119 R)
• M10: 4,810,768 km (0.102 R)
• M11: 5,265,845 km (0.076 R)
• M12: 5,836,860 km (0.084 R)
• M13: 6,543,112 km (0.109 R)
• M14: 6,954,057 km (0.106 R)
• M15: 7,828,157 km (0.094 R)
• M16: 9,215,079 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 113.2

Radius: 10.8

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.57 AU - 2.21 AU

Year: 1762 Days

Day: 7.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 24,872,783 km

• M1: 134,788 km (0.113 R)
• M2: 520,152 km (0.107 R)
• M3: 1,311,375 km (0.117 R)
• M4: 1,672,504 km (0.076 R)
• M5: 2,168,122 km (0.097 R)
• M6: 2,569,792 km (0.04 R)
• M7: 4,190,536 km (0.107 R)
• M8: 5,639,541 km (0.079 R)
• M9: 6,847,095 km (0.101 R)
• M10: 7,285,715 km (0.118 R)
• M11: 7,626,948 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 881.7

Radius: 9.7

Gravity: 9.37 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 3.52 AU - 5.76 AU

Year: 6779 Days

Day: 14 Hours

Environment

Temp: -216 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 24,872,783 km

• M1: 123,568 km (0.109 R)
• M2: 432,039 km (0.07 R)
• M3: 801,545 km (0.072 R)
• M4: 1,588,580 km (0.069 R)
• M5: 2,463,877 km (0.053 R)
• M6: 3,377,322 km (0.036 R)
• M7: 3,679,659 km (0.105 R)
• M8: 4,474,472 km (0.079 R)
• M9: 6,059,312 km (0.084 R)
• M10: 7,707,282 km (0.111 R)
• M11: 9,451,893 km (0.062 R)
• M12: 10,587,640 km (0.074 R)
• M13: 11,811,799 km (0.118 R)
• M14: 12,623,368 km (0.08 R)
• M15: 14,058,161 km (0.102 R)
• M16: 18,793,980 km (0.117 R)
• M17: 19,824,411 km (0.102 R)
• M18: 20,277,393 km (0.092 R)
• M19: 22,646,425 km (0.05 R)
• M20: 25,018,748 km (0.102 R)
• M21: 26,174,541 km (0.111 R)
• M22: 37,646,903 km (0.093 R)
• M23: 38,575,307 km (0.039 R)
• M24: 39,281,558 km (0.028 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 943.7

Radius: 5.3

Gravity: 33.6 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 6.11 AU - 8.37 AU

Year: 13213 Days

Day: 21.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 24,872,783 km

• M1: 68,366 km (0.071 R)
• M2: 328,667 km (0.104 R)
• M3: 579,093 km (0.108 R)
• M4: 816,356 km (0.078 R)
• M5: 1,129,763 km (0.107 R)
• M6: 1,474,287 km (0.08 R)
• M7: 1,679,685 km (0.118 R)
• M8: 2,187,869 km (0.048 R)
• M9: 2,769,655 km (0.111 R)
• M10: 3,009,610 km (0.117 R)
• M11: 3,449,129 km (0.106 R)
• M12: 3,727,081 km (0.11 R)
• M13: 4,019,844 km (0.114 R)
• M14: 5,166,662 km (0.117 R)
• M15: 6,392,317 km (0.115 R)
• M16: 6,641,996 km (0.051 R)
• M17: 7,205,381 km (0.053 R)
• M18: 7,660,009 km (0.094 R)
• M19: 8,085,316 km (0.1 R)
• M20: 9,086,724 km (0.104 R)
• M21: 11,514,698 km (0.059 R)
• M22: 13,042,092 km (0.058 R)
• M23: 15,653,772 km (0.108 R)
• M24: 20,686,693 km (0.103 R)
• M25: 21,883,177 km (0.078 R)
• M26: 23,027,899 km (0.096 R)
• M27: 23,912,172 km (0.116 R)
• M28: 25,853,055 km (0.095 R)
• M29: 35,310,034 km (0.062 R)
• M30: 42,021,892 km (0.089 R)
• M31: 45,293,598 km (0.038 R)
• M32: 45,752,564 km (0.077 R)
• M33: 52,003,511 km (0.092 R)
• M34: 53,013,147 km (0.061 R)
• M35: 57,539,231 km (0.055 R)
• M36: 62,316,040 km (0.105 R)
• M37: 64,221,468 km (0.07 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 514.3

Radius: 3

Gravity: 57.14 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 8.01 AU - 10.01 AU

Year: 18343 Days

Day: 17.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 24,872,783 km

• M1: 48,171 km (0.046 R)
• M2: 177,423 km (0.117 R)
• M3: 381,026 km (0.096 R)
• M4: 731,982 km (0.084 R)
• M5: 831,166 km (0.079 R)
• M6: 1,484,908 km (0.092 R)
• M7: 1,962,275 km (0.108 R)
• M8: 3,450,475 km (0.075 R)
• M9: 3,848,256 km (0.12 R)
• M10: 4,212,975 km (0.1 R)
• M11: 4,802,391 km (0.051 R)
• M12: 4,940,619 km (0.095 R)
• M13: 6,346,690 km (0.091 R)
• M14: 8,291,163 km (0.092 R)
• M15: 8,390,197 km (0.098 R)
• M16: 12,312,054 km (0.067 R)
• M17: 13,099,388 km (0.1 R)
• M18: 14,200,727 km (0.118 R)
• M19: 14,846,691 km (0.097 R)
• M20: 19,311,140 km (0.08 R)
• M21: 19,925,389 km (0.037 R)
• M22: 23,986,223 km (0.103 R)
• M23: 31,238,130 km (0.074 R)
• M24: 34,073,009 km (0.119 R)
• M25: 34,582,839 km (0.114 R)
• M26: 35,097,755 km (0.114 R)
• M27: 42,264,690 km (0.1 R)
• M28: 44,197,345 km (0.099 R)
• M29: 45,415,520 km (0.087 R)
• M30: 47,126,770 km (0.102 R)
• M31: 54,055,844 km (0.099 R)
• M32: 54,749,081 km (0.095 R)
• M33: 56,330,629 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 909.6

Radius: 3.1

Gravity: 94.65 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 7.61 AU - 10.97 AU

Year: 19205 Days

Day: 23.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 24,872,783 km

• M1: 38,596 km (0.07 R)
• M2: 138,228 km (0.109 R)
• M3: 632,649 km (0.065 R)
• M4: 813,812 km (0.104 R)
• M5: 940,821 km (0.092 R)
• M6: 1,235,080 km (0.116 R)
• M7: 1,371,812 km (0.032 R)
• M8: 1,535,622 km (0.117 R)
• M9: 1,657,844 km (0.05 R)
• M10: 1,863,241 km (0.079 R)
• M11: 2,831,588 km (0.078 R)
• M12: 3,803,077 km (0.093 R)
• M13: 4,573,955 km (0.082 R)
• M14: 4,717,868 km (0.114 R)
• M15: 4,864,923 km (0.118 R)
• M16: 5,284,844 km (0.069 R)
• M17: 6,023,558 km (0.107 R)
• M18: 7,160,053 km (0.073 R)
• M19: 7,354,231 km (0.105 R)
• M20: 8,061,829 km (0.115 R)
• M21: 8,272,014 km (0.075 R)
• M22: 10,331,379 km (0.1 R)
• M23: 11,879,417 km (0.107 R)
• M24: 12,358,430 km (0.095 R)
• M25: 13,501,507 km (0.114 R)
• M26: 26,075,657 km (0.12 R)
• M27: 27,826,401 km (0.118 R)
• M28: 38,058,297 km (0.112 R)
• M29: 44,408,577 km (0.106 R)
• M30: 48,607,639 km (0.119 R)
• M31: 53,247,417 km (0.025 R)
• M32: 55,107,667 km (0.086 R)
• M33: 56,053,873 km (0.031 R)
• M34: 62,571,703 km (0.026 R)
• M35: 68,701,027 km (0.084 R)
• M36: 72,473,736 km (0.067 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 25.7

Radius: 3.8

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 9.01 AU - 9.63 AU

Year: 19298 Days

Day: 16.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 24,872,783 km

• M1: 50,714 km (0.098 R)
• M2: 293,960 km (0.099 R)
• M3: 439,818 km (0.036 R)
• M4: 592,258 km (0.114 R)
• M5: 737,817 km (0.092 R)
• M6: 883,824 km (0.119 R)
• M7: 1,926,222 km (0.077 R)
• M8: 3,497,748 km (0.112 R)
• M9: 4,966,500 km (0.064 R)
• M10: 5,409,609 km (0.093 R)
• M11: 6,314,077 km (0.103 R)
• M12: 9,586,232 km (0.11 R)
• M13: 13,987,251 km (0.111 R)
• M14: 16,282,531 km (0.117 R)
• M15: 17,845,081 km (0.063 R)
• M16: 18,509,445 km (0.105 R)
• M17: 18,631,966 km (0.043 R)
• M18: 20,144,999 km (0.107 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 206 - 13,931 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit