🌌 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 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.28

Radius: 0.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.46 AU - 0.64 AU

Year: 268 Days

Day: 40.3 Hours

Environment

Temp: -114 °C

Axial Tilt: 2.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 738.3

Radius: 12.1

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.54 AU - 0.88 AU

Year: 392 Days

Day: 10.8 Hours

Environment

Temp: -143 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,785,041 km

• M1: 150,645 km (0.098 R)
• M2: 542,591 km (0.116 R)
• M3: 982,409 km (0.12 R)
• M4: 1,441,974 km (0.049 R)
• M5: 2,021,366 km (0.089 R)
• M6: 2,575,926 km (0.108 R)
• M7: 3,054,190 km (0.115 R)
• M8: 4,314,103 km (0.068 R)
• M9: 5,084,682 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.1

Radius: 14.1

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.76 AU - 1.24 AU

Year: 656 Days

Day: 6.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 57,785,041 km

• M1: 175,329 km (0.108 R)
• M2: 617,989 km (0.083 R)
• M3: 1,349,373 km (0.101 R)
• M4: 1,931,009 km (0.086 R)
• M5: 2,809,598 km (0.053 R)
• M6: 3,739,498 km (0.105 R)
• M7: 4,289,719 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.3

Radius: 8.3

Gravity: 9.99 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 2.61 AU - 3.71 AU

Year: 3685 Days

Day: 11.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 57,785,041 km

• M1: 103,522 km (0.083 R)
• M2: 631,153 km (0.087 R)
• M3: 970,292 km (0.094 R)
• M4: 1,430,455 km (0.089 R)
• M5: 2,225,119 km (0.089 R)
• M6: 2,906,687 km (0.057 R)
• M7: 4,081,180 km (0.044 R)
• M8: 5,411,105 km (0.066 R)
• M9: 6,820,616 km (0.09 R)
• M10: 7,362,459 km (0.102 R)
• M11: 8,388,252 km (0.095 R)
• M12: 10,553,382 km (0.073 R)
• M13: 12,637,729 km (0.066 R)
• M14: 13,066,177 km (0.082 R)
• M15: 13,602,785 km (0.105 R)
• M16: 15,516,291 km (0.12 R)
• M17: 18,682,231 km (0.108 R)
• M18: 20,125,252 km (0.08 R)
• M19: 22,048,781 km (0.111 R)
• M20: 23,947,029 km (0.058 R)
• M21: 24,383,107 km (0.052 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572.1

Radius: 11.5

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 3.97 AU - 4.65 AU

Year: 5870 Days

Day: 6.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,785,041 km

• M1: 143,016 km (0.103 R)
• M2: 1,234,482 km (0.097 R)
• M3: 1,940,733 km (0.091 R)
• M4: 2,561,265 km (0.066 R)
• M5: 3,090,842 km (0.106 R)
• M6: 3,849,303 km (0.111 R)
• M7: 4,272,814 km (0.118 R)
• M8: 5,705,064 km (0.108 R)
• M9: 6,482,225 km (0.079 R)
• M10: 9,407,163 km (0.036 R)
• M11: 9,831,422 km (0.099 R)
• M12: 10,902,094 km (0.063 R)
• M13: 11,754,802 km (0.115 R)
• M14: 12,147,945 km (0.063 R)
• M15: 13,274,268 km (0.065 R)
• M16: 15,793,197 km (0.101 R)
• M17: 16,576,491 km (0.107 R)
• M18: 17,639,833 km (0.08 R)
• M19: 19,285,260 km (0.04 R)
• M20: 19,763,823 km (0.091 R)
• M21: 21,757,664 km (0.101 R)
• M22: 24,833,845 km (0.049 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 326.4

Radius: 7.4

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 4.76 AU - 7.6 AU

Year: 10078 Days

Day: 17.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 57,785,041 km

• M1: 101,876 km (0.096 R)
• M2: 410,796 km (0.074 R)
• M3: 872,754 km (0.05 R)
• M4: 1,453,493 km (0.119 R)
• M5: 3,246,573 km (0.104 R)
• M6: 3,581,971 km (0.053 R)
• M7: 4,756,614 km (0.07 R)
• M8: 5,840,899 km (0.099 R)
• M9: 8,697,471 km (0.092 R)
• M10: 13,415,488 km (0.091 R)
• M11: 14,046,193 km (0.118 R)
• M12: 17,231,281 km (0.107 R)
• M13: 21,326,224 km (0.044 R)
• M14: 22,343,340 km (0.062 R)
• M15: 34,568,029 km (0.053 R)
• M16: 37,185,393 km (0.071 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 612.6

Radius: 3

Gravity: 68.07 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 5.18 AU - 7.26 AU

Year: 10176 Days

Day: 17.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 57,785,041 km

• M1: 160,070 km (0.066 R)
• M2: 427,850 km (0.117 R)
• M3: 775,515 km (0.109 R)
• M4: 1,297,762 km (0.044 R)
• M5: 1,455,138 km (0.117 R)
• M6: 1,654,702 km (0.119 R)
• M7: 2,307,547 km (0.103 R)
• M8: 2,402,093 km (0.104 R)
• M9: 4,319,938 km (0.082 R)
• M10: 5,699,679 km (0.114 R)
• M11: 6,563,756 km (0.105 R)
• M12: 6,909,327 km (0.075 R)
• M13: 7,678,111 km (0.032 R)
• M14: 8,958,968 km (0.066 R)
• M15: 9,335,954 km (0.069 R)
• M16: 9,431,697 km (0.049 R)
• M17: 10,791,093 km (0.028 R)
• M18: 12,564,576 km (0.087 R)
• M19: 15,240,881 km (0.109 R)
• M20: 19,653,869 km (0.105 R)
• M21: 23,761,228 km (0.108 R)
• M22: 25,872,353 km (0.072 R)
• M23: 30,357,597 km (0.113 R)
• M24: 31,098,705 km (0.096 R)
• M25: 34,412,297 km (0.111 R)
• M26: 42,777,511 km (0.065 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 992.2

Radius: 5

Gravity: 39.69 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 7.67 AU - 9.81 AU

Year: 16950 Days

Day: 23.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 57,785,041 km

• M1: 62,233 km (0.05 R)
• M2: 482,154 km (0.058 R)
• M3: 735,573 km (0.068 R)
• M4: 928,105 km (0.113 R)
• M5: 1,087,726 km (0.083 R)
• M6: 1,354,609 km (0.112 R)
• M7: 1,512,135 km (0.059 R)
• M8: 1,980,227 km (0.117 R)
• M9: 2,163,036 km (0.119 R)
• M10: 2,357,214 km (0.095 R)
• M11: 2,682,439 km (0.087 R)
• M12: 3,747,127 km (0.082 R)
• M13: 7,129,087 km (0.063 R)
• M14: 8,060,483 km (0.092 R)
• M15: 8,960,164 km (0.1 R)
• M16: 9,237,070 km (0.037 R)
• M17: 10,401,989 km (0.071 R)
• M18: 11,273,546 km (0.115 R)
• M19: 12,879,329 km (0.055 R)
• M20: 13,303,439 km (0.11 R)
• M21: 14,707,715 km (0.093 R)
• M22: 15,485,324 km (0.101 R)
• M23: 15,723,783 km (0.075 R)
• M24: 15,884,152 km (0.06 R)
• M25: 16,453,971 km (0.035 R)
• M26: 17,037,402 km (0.073 R)
• M27: 23,440,341 km (0.047 R)
• M28: 27,056,420 km (0.114 R)
• M29: 32,692,670 km (0.066 R)
• M30: 36,340,165 km (0.116 R)
• M31: 37,613,692 km (0.074 R)
• M32: 39,653,608 km (0.118 R)
• M33: 40,851,738 km (0.073 R)
• M34: 41,459,853 km (0.108 R)
• M35: 49,577,034 km (0.036 R)
• M36: 57,163,890 km (0.101 R)
• M37: 65,903,996 km (0.119 R)
• M38: 66,321,224 km (0.116 R)
• M39: 70,155,268 km (0.1 R)
• M40: 71,905,713 km (0.078 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 655.5

Radius: 4.4

Gravity: 33.86 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 8.09 AU - 10.63 AU

Year: 18786 Days

Day: 15.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 57,785,041 km

• M1: 55,650 km (0.095 R)
• M2: 212,579 km (0.097 R)
• M3: 383,419 km (0.094 R)
• M4: 917,633 km (0.049 R)
• M5: 1,218,475 km (0.102 R)
• M6: 2,174,854 km (0.03 R)
• M7: 2,903,994 km (0.117 R)
• M8: 3,724,239 km (0.101 R)
• M9: 5,302,945 km (0.105 R)
• M10: 5,532,129 km (0.079 R)
• M11: 6,175,998 km (0.112 R)
• M12: 6,602,801 km (0.108 R)
• M13: 15,191,365 km (0.11 R)
• M14: 16,688,241 km (0.074 R)
• M15: 19,069,241 km (0.088 R)
• M16: 20,155,471 km (0.052 R)
• M17: 20,526,623 km (0.051 R)
• M18: 21,958,723 km (0.074 R)
• M19: 24,491,565 km (0.08 R)
• M20: 25,127,206 km (0.103 R)
• M21: 25,449,141 km (0.118 R)
• M22: 26,987,755 km (0.119 R)
• M23: 28,938,063 km (0.078 R)
• M24: 31,848,639 km (0.097 R)
• M25: 33,245,434 km (0.107 R)
• M26: 36,297,231 km (0.064 R)
• M27: 39,820,410 km (0.106 R)
• M28: 44,968,222 km (0.096 R)
• M29: 45,760,792 km (0.09 R)
• M30: 47,865,036 km (0.085 R)
• M31: 55,283,444 km (0.061 R)
• M32: 55,464,607 km (0.118 R)
• M33: 56,192,850 km (0.096 R)
• M34: 56,559,365 km (0.11 R)
• M35: 63,432,190 km (0.117 R)
• M36: 65,638,160 km (0.105 R)
• M37: 69,990,561 km (0.073 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 316.2

Radius: 8

Gravity: 4.94 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 8.48 AU - 10.7 AU

Year: 19482 Days

Day: 16.4 Hours

Environment

Temp: -238 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 57,785,041 km

• M1: 100,231 km (0.095 R)
• M2: 540,497 km (0.095 R)
• M3: 801,396 km (0.074 R)
• M4: 1,234,930 km (0.081 R)
• M5: 1,720,076 km (0.059 R)
• M6: 1,971,999 km (0.029 R)
• M7: 2,904,592 km (0.083 R)
• M8: 3,190,474 km (0.118 R)
• M9: 3,681,753 km (0.052 R)
• M10: 4,017,301 km (0.064 R)
• M11: 5,899,392 km (0.115 R)
• M12: 8,024,729 km (0.078 R)
• M13: 8,494,616 km (0.116 R)
• M14: 9,437,531 km (0.117 R)
• M15: 10,614,717 km (0.102 R)
• M16: 13,847,527 km (0.107 R)
• M17: 15,221,434 km (0.088 R)
• M18: 16,309,758 km (0.067 R)
• M19: 17,840,444 km (0.032 R)
• M20: 18,237,626 km (0.085 R)
• M21: 20,571,802 km (0.058 R)
• M22: 25,024,283 km (0.12 R)
• M23: 26,951,253 km (0.107 R)
• M24: 28,110,936 km (0.046 R)
• M25: 30,079,793 km (0.086 R)
• M26: 36,662,848 km (0.096 R)
• M27: 49,401,555 km (0.112 R)
• M28: 52,260,520 km (0.06 R)
• M29: 53,237,544 km (0.083 R)
• M30: 54,892,844 km (0.053 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 409 - 16,964 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit