🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.48

Radius: 1.17

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.62 AU - 0.78 AU

Year: 225 Days

Day: 13.8 Hours

Environment

Temp: 149 °C

Axial Tilt: 35.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.16

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.66 AU - 0.88 AU

Year: 260 Days

Day: 16.5 Hours

Environment

Temp: 70 °C

Axial Tilt: 0.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 78,180,060 km

• M1: 37,250 km (0.087 R)
• M2: 609,163 km (0.09 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.31 AU - 1.63 AU

Year: 686 Days

Day: 39.8 Hours

Environment

Temp: -48 °C

Axial Tilt: 10.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.88

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.53 AU - 1.61 AU

Year: 757 Days

Day: 28.4 Hours

Environment

Temp: -64 °C

Axial Tilt: 32.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.59

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 1.75 AU - 2.39 AU

Year: 1147 Days

Day: 24.5 Hours

Environment

Temp: -97 °C

Axial Tilt: 1.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.8

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 2.63 AU - 4.05 AU

Year: 2350 Days

Day: 41.7 Hours

Environment

Temp: -125 °C

Axial Tilt: 15.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 5.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 53.6

Radius: 12.5

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 4.47 AU - 6.29 AU

Year: 4804 Days

Day: 11 Hours

Environment

Temp: -158 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (51)

Outer Limit: 78,180,060 km

• M1: 157,527 km (0.056 R)
• M2: 324,478 km (0.112 R)
• M3: 463,305 km (0.118 R)
• M4: 596,297 km (0.111 R)
• M5: 717,621 km (0.075 R)
• M6: 862,581 km (0.092 R)
• M7: 942,915 km (0.093 R)
• M8: 1,104,032 km (0.095 R)
• M9: 1,208,601 km (0.113 R)
• M10: 1,325,288 km (0.109 R)
• M11: 1,525,449 km (0.058 R)
• M12: 1,643,333 km (0.119 R)
• M13: 1,726,659 km (0.117 R)
• M14: 2,035,279 km (0.073 R)
• M15: 2,382,795 km (0.071 R)
• M16: 2,467,467 km (0.114 R)
• M17: 2,574,579 km (0.071 R)
• M18: 3,111,037 km (0.067 R)
• M19: 3,560,429 km (0.04 R)
• M20: 3,645,551 km (0.082 R)
• M21: 3,805,321 km (0.066 R)
• M22: 4,247,383 km (0.053 R)
• M23: 4,337,740 km (0.063 R)
• M24: 4,639,479 km (0.101 R)
• M25: 5,016,017 km (0.11 R)
• M26: 5,235,626 km (0.074 R)
• M27: 5,641,934 km (0.041 R)
• M28: 5,827,435 km (0.09 R)
• M29: 5,928,115 km (0.085 R)
• M30: 6,189,911 km (0.12 R)
• M31: 6,292,685 km (0.096 R)
• M32: 6,500,027 km (0.097 R)
• M33: 6,634,516 km (0.109 R)
• M34: 7,212,712 km (0.026 R)
• M35: 7,383,104 km (0.062 R)
• M36: 7,886,650 km (0.084 R)
• M37: 8,014,257 km (0.079 R)
• M38: 8,158,619 km (0.101 R)
• M39: 8,564,179 km (0.078 R)
• M40: 8,695,376 km (0.09 R)
• M41: 8,910,049 km (0.038 R)
• M42: 9,160,027 km (0.083 R)
• M43: 9,632,607 km (0.12 R)
• M44: 9,769,190 km (0.113 R)
• M45: 10,304,301 km (0.115 R)
• M46: 11,187,527 km (0.056 R)
• M47: 11,547,759 km (0.118 R)
• M48: 11,765,573 km (0.104 R)
• M49: 11,856,828 km (0.109 R)
• M50: 12,187,140 km (0.104 R)
• M51: 12,297,843 km (0.071 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 322.4

Radius: 5.6

Gravity: 10.28 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 17.62 AU - 19.16 AU

Year: 30363 Days

Day: 21.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 78,180,060 km

• M1: 159,771 km (0.097 R)
• M2: 213,177 km (0.087 R)
• M3: 307,274 km (0.116 R)
• M4: 342,130 km (0.076 R)
• M5: 435,629 km (0.108 R)
• M6: 625,618 km (0.057 R)
• M7: 671,246 km (0.089 R)
• M8: 718,070 km (0.089 R)
• M9: 942,915 km (0.119 R)
• M10: 1,160,730 km (0.101 R)
• M11: 1,516,324 km (0.11 R)
• M12: 1,738,626 km (0.115 R)
• M13: 1,903,783 km (0.088 R)
• M14: 2,880,507 km (0.082 R)
• M15: 4,427,199 km (0.118 R)
• M16: 4,652,943 km (0.061 R)
• M17: 5,787,942 km (0.067 R)
• M18: 6,538,624 km (0.108 R)
• M19: 7,003,724 km (0.075 R)
• M20: 7,694,118 km (0.066 R)
• M21: 7,965,488 km (0.119 R)
• M22: 8,573,454 km (0.106 R)
• M23: 9,310,971 km (0.107 R)
• M24: 10,127,776 km (0.117 R)
• M25: 10,187,017 km (0.09 R)
• M26: 10,484,866 km (0.118 R)
• M27: 10,785,558 km (0.114 R)
• M28: 10,967,469 km (0.077 R)
• M29: 11,089,241 km (0.099 R)
• M30: 11,150,277 km (0.061 R)
• M31: 12,142,111 km (0.112 R)
• M32: 12,776,406 km (0.087 R)
• M33: 13,033,116 km (0.042 R)
• M34: 13,356,397 km (0.079 R)
• M35: 13,486,398 km (0.084 R)
• M36: 13,682,221 km (0.06 R)
• M37: 14,010,738 km (0.097 R)
• M38: 14,275,526 km (0.11 R)
• M39: 15,555,187 km (0.097 R)
• M40: 16,104,959 km (0.108 R)
• M41: 17,649,407 km (0.062 R)
• M42: 19,460,888 km (0.031 R)
• M43: 20,276,495 km (0.097 R)
• M44: 21,027,626 km (0.071 R)
• M45: 21,558,848 km (0.032 R)
• M46: 21,940,921 km (0.063 R)
• M47: 23,178,694 km (0.101 R)
• M48: 25,238,058 km (0.109 R)
• M49: 26,779,515 km (0.111 R)
• M50: 29,867,664 km (0.061 R)
• M51: 29,952,635 km (0.075 R)
• M52: 30,464,410 km (0.04 R)
• M53: 30,550,129 km (0.034 R)
• M54: 31,583,252 km (0.076 R)
• M55: 36,553,791 km (0.079 R)
• M56: 38,110,058 km (0.037 R)
• M57: 39,407,819 km (0.089 R)
• M58: 41,951,432 km (0.093 R)
• M59: 42,428,200 km (0.113 R)
• M60: 43,579,954 km (0.098 R)
• M61: 43,966,066 km (0.051 R)
• M62: 44,256,436 km (0.035 R)
• M63: 45,228,971 km (0.062 R)
• M64: 45,913,980 km (0.113 R)
• M65: 46,012,116 km (0.054 R)
• M66: 48,788,054 km (0.119 R)
• M67: 49,691,775 km (0.089 R)
• M68: 50,297,347 km (0.101 R)
• M69: 52,538,623 km (0.092 R)
• M70: 53,052,491 km (0.116 R)
• M71: 54,085,165 km (0.099 R)
• M72: 56,170,560 km (0.087 R)
• M73: 56,696,097 km (0.096 R)
• M74: 58,920,767 km (0.111 R)
• M75: 60,312,177 km (0.087 R)
• M76: 60,850,131 km (0.091 R)
• M77: 60,957,991 km (0.09 R)
• M78: 61,930,975 km (0.102 R)
• M79: 62,147,892 km (0.097 R)
• M80: 62,256,500 km (0.107 R)
• M81: 63,564,135 km (0.096 R)
• M82: 63,892,503 km (0.065 R)
• M83: 65,763,673 km (0.094 R)
• M84: 67,095,243 km (0.114 R)
• M85: 68,884,434 km (0.118 R)
• M86: 71,711,534 km (0.042 R)
• M87: 71,825,378 km (0.116 R)
• M88: 73,540,668 km (0.073 R)
• M89: 73,770,300 km (0.104 R)
• M90: 75,385,060 km (0.05 R)
• M91: 75,964,452 km (0.115 R)
• M92: 77,011,338 km (0.107 R)
• M93: 78,179,997 km (0.091 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 226 - 19,566 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit