🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.5

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.52 AU - 0.74 AU

Year: 328 Days

Day: 47.5 Hours

Environment

Temp: -136 °C

Axial Tilt: 21.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.79

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.49 AU - 0.77 AU

Year: 328 Days

Day: 29.7 Hours

Environment

Temp: -140 °C

Axial Tilt: 29.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 62,761,736 km

• M1: 124,615 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239.1

Radius: 14.3

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.67 AU - 0.95 AU

Year: 478 Days

Day: 7.1 Hours

Environment

Temp: -142 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 62,761,736 km

• M1: 179,368 km (0.109 R)
• M2: 638,185 km (0.068 R)
• M3: 1,132,456 km (0.08 R)
• M4: 2,601,058 km (0.087 R)
• M5: 3,491,016 km (0.07 R)
• M6: 4,183,205 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.2

Radius: 12.3

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.59 AU - 1.93 AU

Year: 1532 Days

Day: 9.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 62,761,736 km

• M1: 153,039 km (0.102 R)
• M2: 579,393 km (0.04 R)
• M3: 1,224,309 km (0.109 R)
• M4: 1,871,320 km (0.114 R)
• M5: 2,307,547 km (0.114 R)
• M6: 2,737,192 km (0.047 R)
• M7: 3,220,693 km (0.047 R)
• M8: 3,699,555 km (0.113 R)
• M9: 4,693,484 km (0.108 R)
• M10: 5,099,941 km (0.115 R)
• M11: 5,774,478 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.1

Radius: 8.2

Gravity: 12.57 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.89 AU - 1.91 AU

Year: 1718 Days

Day: 9.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 62,761,736 km

• M1: 102,026 km (0.06 R)
• M2: 373,097 km (0.082 R)
• M3: 711,487 km (0.101 R)
• M4: 1,246,599 km (0.111 R)
• M5: 1,521,410 km (0.08 R)
• M6: 2,087,040 km (0.092 R)
• M7: 2,373,221 km (0.069 R)
• M8: 3,213,961 km (0.103 R)
• M9: 3,809,809 km (0.08 R)
• M10: 4,086,864 km (0.117 R)
• M11: 4,828,570 km (0.035 R)
• M12: 5,447,158 km (0.102 R)
• M13: 5,728,102 km (0.082 R)
• M14: 6,550,741 km (0.104 R)
• M15: 7,564,416 km (0.046 R)
• M16: 7,855,534 km (0.106 R)
• M17: 9,226,449 km (0.09 R)
• M18: 11,725,332 km (0.068 R)
• M19: 12,474,667 km (0.107 R)
• M20: 13,171,644 km (0.088 R)
• M21: 13,636,444 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.9

Radius: 8.7

Gravity: 12.18 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 3.62 AU - 4.98 AU

Year: 5849 Days

Day: 6.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 62,761,736 km

• M1: 108,159 km (0.086 R)
• M2: 944,711 km (0.096 R)
• M3: 2,165,429 km (0.044 R)
• M4: 2,633,222 km (0.027 R)
• M5: 3,723,940 km (0.067 R)
• M6: 4,063,527 km (0.085 R)
• M7: 4,584,427 km (0.075 R)
• M8: 5,696,537 km (0.098 R)
• M9: 5,984,364 km (0.108 R)
• M10: 6,871,329 km (0.111 R)
• M11: 7,161,100 km (0.088 R)
• M12: 7,921,656 km (0.064 R)
• M13: 10,011,538 km (0.113 R)
• M14: 10,479,331 km (0.105 R)
• M15: 13,095,349 km (0.074 R)
• M16: 15,063,608 km (0.097 R)
• M17: 15,802,921 km (0.085 R)
• M18: 16,566,319 km (0.087 R)
• M19: 17,022,891 km (0.091 R)
• M20: 22,296,665 km (0.1 R)
• M21: 22,613,663 km (0.109 R)
• M22: 25,603,376 km (0.111 R)
• M23: 33,895,886 km (0.036 R)
• M24: 35,271,288 km (0.09 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 538.4

Radius: 14.5

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 3.85 AU - 5.59 AU

Year: 6727 Days

Day: 11.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 62,761,736 km

• M1: 191,485 km (0.098 R)
• M2: 774,019 km (0.11 R)
• M3: 2,168,870 km (0.106 R)
• M4: 3,963,147 km (0.102 R)
• M5: 5,040,700 km (0.108 R)
• M6: 5,800,657 km (0.109 R)
• M7: 7,012,999 km (0.083 R)
• M8: 7,923,601 km (0.107 R)
• M9: 8,467,389 km (0.104 R)
• M10: 8,953,133 km (0.104 R)
• M11: 14,261,464 km (0.111 R)
• M12: 14,834,574 km (0.06 R)
• M13: 15,844,060 km (0.107 R)
• M14: 16,334,891 km (0.087 R)
• M15: 17,026,182 km (0.091 R)
• M16: 19,847,150 km (0.051 R)
• M17: 20,926,199 km (0.11 R)
• M18: 23,044,654 km (0.053 R)
• M19: 28,779,190 km (0.106 R)
• M20: 29,788,377 km (0.11 R)
• M21: 30,254,973 km (0.12 R)
• M22: 31,877,661 km (0.102 R)
• M23: 32,661,105 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 697.7

Radius: 3.5

Gravity: 56.96 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 6.1 AU - 6.42 AU

Year: 10275 Days

Day: 17.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 62,761,736 km

• M1: 51,761 km (0.069 R)
• M2: 369,507 km (0.079 R)
• M3: 544,835 km (0.119 R)
• M4: 895,942 km (0.096 R)
• M5: 1,109,119 km (0.046 R)
• M6: 1,533,677 km (0.051 R)
• M7: 1,712,297 km (0.088 R)
• M8: 2,313,531 km (0.107 R)
• M9: 3,207,229 km (0.101 R)
• M10: 3,575,688 km (0.033 R)
• M11: 4,026,576 km (0.085 R)
• M12: 4,396,233 km (0.106 R)
• M13: 5,040,551 km (0.05 R)
• M14: 5,235,626 km (0.108 R)
• M15: 5,435,639 km (0.086 R)
• M16: 6,250,349 km (0.103 R)
• M17: 6,475,493 km (0.094 R)
• M18: 8,799,048 km (0.084 R)
• M19: 9,034,365 km (0.073 R)
• M20: 9,177,530 km (0.072 R)
• M21: 11,400,405 km (0.095 R)
• M22: 12,079,430 km (0.039 R)
• M23: 12,487,682 km (0.066 R)
• M24: 16,443,200 km (0.069 R)
• M25: 18,204,116 km (0.084 R)
• M26: 18,356,257 km (0.118 R)
• M27: 21,326,972 km (0.12 R)
• M28: 23,416,256 km (0.09 R)
• M29: 26,311,273 km (0.101 R)
• M30: 27,593,178 km (0.107 R)
• M31: 32,799,333 km (0.027 R)
• M32: 33,251,268 km (0.11 R)
• M33: 36,530,603 km (0.112 R)
• M34: 37,382,862 km (0.098 R)
• M35: 41,055,191 km (0.063 R)
• M36: 41,448,334 km (0.09 R)
• M37: 44,545,758 km (0.044 R)
• M38: 45,798,491 km (0.104 R)
• M39: 47,074,710 km (0.118 R)
• M40: 49,106,698 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 143.7

Radius: 3.9

Gravity: 9.45 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 4.86 AU - 7.72 AU

Year: 10349 Days

Day: 24.2 Hours

Environment

Temp: -230 °C

Axial Tilt: 141.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 62,761,736 km

• M1: 66,421 km (0.076 R)
• M2: 218,114 km (0.045 R)
• M3: 366,814 km (0.107 R)
• M4: 633,846 km (0.116 R)
• M5: 940,522 km (0.107 R)
• M6: 1,306,438 km (0.076 R)
• M7: 1,451,548 km (0.053 R)
• M8: 1,619,696 km (0.094 R)
• M9: 1,910,365 km (0.115 R)
• M10: 2,142,840 km (0.11 R)
• M11: 2,492,899 km (0.103 R)
• M12: 2,788,804 km (0.109 R)
• M13: 3,555,493 km (0.086 R)
• M14: 3,952,974 km (0.11 R)
• M15: 4,654,738 km (0.082 R)
• M16: 4,835,901 km (0.069 R)
• M17: 7,927,490 km (0.111 R)
• M18: 8,488,183 km (0.028 R)
• M19: 9,155,240 km (0.091 R)
• M20: 9,772,331 km (0.033 R)
• M21: 10,198,685 km (0.069 R)
• M22: 10,548,595 km (0.064 R)
• M23: 10,861,404 km (0.099 R)
• M24: 11,272,499 km (0.078 R)
• M25: 12,518,649 km (0.086 R)
• M26: 13,960,025 km (0.114 R)
• M27: 14,282,707 km (0.072 R)
• M28: 15,971,218 km (0.049 R)
• M29: 16,205,937 km (0.105 R)
• M30: 17,229,187 km (0.077 R)
• M31: 18,040,306 km (0.081 R)
• M32: 19,337,320 km (0.097 R)
• M33: 26,928,664 km (0.058 R)
• M34: 27,177,894 km (0.085 R)
• M35: 27,596,469 km (0.057 R)
• M36: 28,275,344 km (0.115 R)
• M37: 28,705,139 km (0.107 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 390.3

Radius: 6.6

Gravity: 8.96 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 9.54 AU - 9.88 AU

Year: 19849 Days

Day: 18.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 62,761,736 km

• M1: 82,129 km (0.104 R)
• M2: 561,291 km (0.1 R)
• M3: 1,261,708 km (0.087 R)
• M4: 1,878,052 km (0.089 R)
• M5: 2,355,119 km (0.098 R)
• M6: 3,130,036 km (0.107 R)
• M7: 3,548,611 km (0.117 R)
• M8: 3,915,724 km (0.098 R)
• M9: 4,826,177 km (0.054 R)
• M10: 5,568,332 km (0.079 R)
• M11: 9,100,338 km (0.066 R)
• M12: 9,951,849 km (0.108 R)
• M13: 10,397,052 km (0.081 R)
• M14: 16,745,387 km (0.102 R)
• M15: 23,477,142 km (0.025 R)
• M16: 25,584,527 km (0.114 R)
• M17: 26,104,230 km (0.108 R)
• M18: 28,033,743 km (0.043 R)
• M19: 33,146,550 km (0.096 R)
• M20: 34,263,747 km (0.088 R)
• M21: 35,022,358 km (0.085 R)
• M22: 38,439,472 km (0.043 R)
• M23: 44,269,301 km (0.072 R)
• M24: 46,541,394 km (0.089 R)
• M25: 49,209,023 km (0.063 R)
• M26: 56,407,972 km (0.09 R)
• M27: 59,619,090 km (0.095 R)
• M28: 61,454,656 km (0.064 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 211 - 15,557 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit