🌌 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 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.98

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.58 AU - 0.64 AU

Year: 308 Days

Day: 44.3 Hours

Environment

Temp: -127 °C

Axial Tilt: 12.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 962

Radius: 11.5

Gravity: 7.27 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.66 AU - 0.72 AU

Year: 370 Days

Day: 10.6 Hours

Environment

Temp: -139 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 64,060,352 km

• M1: 143,016 km (0.036 R)
• M2: 549,922 km (0.068 R)
• M3: 1,033,871 km (0.091 R)
• M4: 1,618,649 km (0.079 R)
• M5: 2,138,651 km (0.114 R)
• M6: 2,568,147 km (0.094 R)
• M7: 2,946,629 km (0.06 R)
• M8: 3,678,312 km (0.106 R)
• M9: 4,944,509 km (0.063 R)
• M10: 5,669,311 km (0.052 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 862.8

Radius: 13.3

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.78 AU - 0.92 AU

Year: 506 Days

Day: 14.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 64,060,352 km

• M1: 165,455 km (0.098 R)
• M2: 582,085 km (0.103 R)
• M3: 999,164 km (0.103 R)
• M4: 1,439,580 km (0.082 R)
• M5: 2,578,618 km (0.047 R)
• M6: 3,071,543 km (0.084 R)
• M7: 3,813,848 km (0.061 R)
• M8: 4,503,494 km (0.06 R)
• M9: 5,446,260 km (0.052 R)
• M10: 6,039,266 km (0.05 R)
• M11: 6,795,184 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 913.5

Radius: 8.6

Gravity: 12.35 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.04 AU - 1.04 AU

Year: 685 Days

Day: 14.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 64,060,352 km

• M1: 111,002 km (0.041 R)
• M2: 443,857 km (0.103 R)
• M3: 753,375 km (0.076 R)
• M4: 1,102,237 km (0.042 R)
• M5: 1,413,101 km (0.084 R)
• M6: 1,765,554 km (0.094 R)
• M7: 2,136,258 km (0.075 R)
• M8: 2,547,353 km (0.119 R)
• M9: 3,743,537 km (0.096 R)
• M10: 4,294,955 km (0.082 R)
• M11: 4,952,438 km (0.102 R)
• M12: 5,241,012 km (0.096 R)
• M13: 6,488,060 km (0.049 R)
• M14: 6,900,351 km (0.065 R)
• M15: 7,353,184 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.1

Radius: 10.1

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.89 AU - 1.39 AU

Year: 786 Days

Day: 8.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 64,060,352 km

• M1: 125,812 km (0.119 R)
• M2: 510,877 km (0.093 R)
• M3: 1,001,259 km (0.093 R)
• M4: 1,337,405 km (0.075 R)
• M5: 1,683,874 km (0.112 R)
• M6: 3,220,543 km (0.108 R)
• M7: 3,540,982 km (0.087 R)
• M8: 4,534,461 km (0.093 R)
• M9: 5,742,165 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.6

Radius: 8.7

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 2.1 AU - 2.5 AU

Year: 2252 Days

Day: 13.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 64,060,352 km

• M1: 108,458 km (0.116 R)
• M2: 443,408 km (0.087 R)
• M3: 845,527 km (0.09 R)
• M4: 1,219,821 km (0.066 R)
• M5: 1,829,881 km (0.099 R)
• M6: 3,334,088 km (0.117 R)
• M7: 4,801,942 km (0.113 R)
• M8: 5,112,507 km (0.06 R)
• M9: 5,793,178 km (0.118 R)
• M10: 6,450,062 km (0.066 R)
• M11: 7,045,461 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.2

Radius: 14.2

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 3.65 AU - 4.21 AU

Year: 5030 Days

Day: 8.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 64,060,352 km

• M1: 176,675 km (0.045 R)
• M2: 627,413 km (0.09 R)
• M3: 1,158,187 km (0.088 R)
• M4: 1,845,589 km (0.044 R)
• M5: 2,574,430 km (0.116 R)
• M6: 3,314,640 km (0.08 R)
• M7: 4,921,920 km (0.12 R)
• M8: 5,486,053 km (0.088 R)
• M9: 6,943,884 km (0.063 R)
• M10: 8,881,925 km (0.116 R)
• M11: 9,793,873 km (0.073 R)
• M12: 11,357,770 km (0.091 R)
• M13: 11,845,608 km (0.086 R)
• M14: 13,215,476 km (0.114 R)
• M15: 13,664,569 km (0.096 R)
• M16: 14,404,330 km (0.102 R)
• M17: 16,319,632 km (0.115 R)
• M18: 17,579,844 km (0.12 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.1

Radius: 13.1

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 4.75 AU - 6.63 AU

Year: 8764 Days

Day: 12.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 64,060,352 km

• M1: 163,361 km (0.1 R)
• M2: 638,484 km (0.101 R)
• M3: 1,263,204 km (0.068 R)
• M4: 2,676,605 km (0.091 R)
• M5: 4,264,287 km (0.107 R)
• M6: 5,150,954 km (0.102 R)
• M7: 7,948,584 km (0.117 R)
• M8: 9,868,224 km (0.034 R)
• M9: 10,883,694 km (0.092 R)
• M10: 12,709,985 km (0.116 R)
• M11: 13,422,220 km (0.067 R)
• M12: 14,732,698 km (0.063 R)
• M13: 16,332,946 km (0.096 R)
• M14: 17,032,765 km (0.087 R)
• M15: 17,607,071 km (0.088 R)
• M16: 18,342,943 km (0.05 R)
• M17: 19,099,310 km (0.077 R)
• M18: 20,352,641 km (0.114 R)
• M19: 21,660,126 km (0.096 R)
• M20: 24,081,816 km (0.079 R)
• M21: 24,532,555 km (0.076 R)
• M22: 26,583,093 km (0.114 R)
• M23: 29,663,014 km (0.115 R)
• M24: 34,546,337 km (0.027 R)
• M25: 35,351,323 km (0.082 R)

Asteroid Belt

Center: 6.51 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 995.9

Radius: 5.8

Gravity: 29.6 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 7.23 AU - 7.43 AU

Year: 12814 Days

Day: 15.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 64,060,352 km

• M1: 81,680 km (0.074 R)
• M2: 275,410 km (0.095 R)
• M3: 490,531 km (0.089 R)
• M4: 1,120,638 km (0.035 R)
• M5: 1,698,235 km (0.118 R)
• M6: 2,168,870 km (0.112 R)
• M7: 2,886,790 km (0.119 R)
• M8: 3,809,809 km (0.062 R)
• M9: 4,015,656 km (0.072 R)
• M10: 4,354,495 km (0.1 R)
• M11: 4,678,673 km (0.115 R)
• M12: 4,915,188 km (0.096 R)
• M13: 5,787,194 km (0.074 R)
• M14: 6,179,439 km (0.115 R)
• M15: 6,547,450 km (0.098 R)
• M16: 7,462,839 km (0.04 R)
• M17: 9,226,000 km (0.069 R)
• M18: 9,870,617 km (0.09 R)
• M19: 10,092,172 km (0.105 R)
• M20: 11,070,392 km (0.107 R)
• M21: 12,047,416 km (0.054 R)
• M22: 13,893,603 km (0.076 R)
• M23: 14,453,847 km (0.097 R)
• M24: 15,029,051 km (0.092 R)
• M25: 16,533,706 km (0.119 R)
• M26: 17,889,362 km (0.086 R)
• M27: 19,231,405 km (0.12 R)
• M28: 23,461,434 km (0.099 R)
• M29: 25,896,738 km (0.095 R)
• M30: 26,851,771 km (0.065 R)
• M31: 29,171,136 km (0.04 R)
• M32: 32,957,159 km (0.109 R)
• M33: 33,576,793 km (0.112 R)
• M34: 36,002,523 km (0.049 R)
• M35: 48,132,965 km (0.117 R)
• M36: 57,573,937 km (0.094 R)
• M37: 59,380,182 km (0.062 R)
• M38: 61,971,816 km (0.094 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 385 - 15,090 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit