🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.26

Radius: 0.58

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.5 AU - 0.82 AU

Year: 352 Days

Day: 24.8 Hours

Environment

Temp: -143 °C

Axial Tilt: 38.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846.5

Radius: 8

Gravity: 13.23 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.59 AU - 0.93 AU

Year: 435 Days

Day: 13.3 Hours

Environment

Temp: -151 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 72,017,181 km

• M1: 143,764 km (0.103 R)
• M2: 406,308 km (0.116 R)
• M3: 712,684 km (0.094 R)
• M4: 1,020,856 km (0.072 R)
• M5: 1,485,507 km (0.082 R)
• M6: 1,907,223 km (0.098 R)
• M7: 2,255,637 km (0.102 R)
• M8: 2,656,409 km (0.094 R)
• M9: 3,035,640 km (0.066 R)
• M10: 3,475,458 km (0.116 R)
• M11: 3,902,859 km (0.039 R)
• M12: 4,512,021 km (0.049 R)
• M13: 5,053,266 km (0.074 R)
• M14: 5,314,913 km (0.099 R)
• M15: 5,741,716 km (0.115 R)
• M16: 6,008,598 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 709.1

Radius: 10.4

Gravity: 6.56 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.68 AU - 1.12 AU

Year: 560 Days

Day: 7.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,017,181 km

• M1: 199,564 km (0.083 R)
• M2: 542,741 km (0.093 R)
• M3: 1,016,218 km (0.102 R)
• M4: 1,353,262 km (0.113 R)
• M5: 2,141,942 km (0.088 R)
• M6: 2,687,376 km (0.059 R)
• M7: 3,176,412 km (0.112 R)
• M8: 3,526,321 km (0.106 R)
• M9: 3,874,286 km (0.074 R)
• M10: 4,561,987 km (0.075 R)
• M11: 5,226,650 km (0.092 R)
• M12: 6,411,316 km (0.115 R)
• M13: 6,891,376 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668

Radius: 15

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.44 AU - 1.72 AU

Year: 1303 Days

Day: 5.2 Hours

Environment

Temp: -176 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,017,181 km

• M1: 187,147 km (0.047 R)
• M2: 733,927 km (0.065 R)
• M3: 1,334,712 km (0.09 R)
• M4: 1,829,582 km (0.077 R)
• M5: 3,266,619 km (0.119 R)
• M6: 3,853,342 km (0.101 R)
• M7: 4,846,971 km (0.11 R)
• M8: 5,487,998 km (0.112 R)
• M9: 6,072,626 km (0.041 R)
• M10: 6,674,608 km (0.118 R)
• M11: 7,240,238 km (0.09 R)
• M12: 10,762,968 km (0.113 R)
• M13: 11,682,696 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.8

Radius: 10.9

Gravity: 8.16 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.57 AU - 2.53 AU

Year: 1925 Days

Day: 5.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 72,017,181 km

• M1: 135,536 km (0.057 R)
• M2: 899,233 km (0.099 R)
• M3: 1,551,629 km (0.036 R)
• M4: 2,130,124 km (0.094 R)
• M5: 2,554,234 km (0.102 R)
• M6: 3,557,138 km (0.093 R)
• M7: 3,925,448 km (0.097 R)
• M8: 4,421,664 km (0.056 R)
• M9: 5,004,498 km (0.07 R)
• M10: 5,860,497 km (0.04 R)
• M11: 9,392,502 km (0.103 R)
• M12: 11,346,400 km (0.037 R)
• M13: 15,600,365 km (0.094 R)
• M14: 16,542,832 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 684.6

Radius: 9.2

Gravity: 8.09 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 3.18 AU - 4.78 AU

Year: 5209 Days

Day: 14.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 72,017,181 km

• M1: 120,725 km (0.093 R)
• M2: 421,567 km (0.08 R)
• M3: 837,449 km (0.081 R)
• M4: 1,383,631 km (0.046 R)
• M5: 1,906,026 km (0.113 R)
• M6: 2,198,341 km (0.071 R)
• M7: 2,520,874 km (0.089 R)
• M8: 3,162,499 km (0.105 R)
• M9: 4,435,577 km (0.082 R)
• M10: 5,201,219 km (0.113 R)
• M11: 5,630,415 km (0.089 R)
• M12: 6,083,098 km (0.06 R)
• M13: 6,398,301 km (0.065 R)
• M14: 7,130,433 km (0.064 R)
• M15: 7,733,462 km (0.113 R)
• M16: 9,122,628 km (0.034 R)
• M17: 9,452,641 km (0.049 R)
• M18: 9,876,451 km (0.118 R)
• M19: 10,580,908 km (0.032 R)
• M20: 11,603,559 km (0.054 R)
• M21: 13,790,680 km (0.112 R)
• M22: 14,896,058 km (0.065 R)
• M23: 17,660,926 km (0.068 R)
• M24: 18,631,966 km (0.113 R)
• M25: 19,638,161 km (0.025 R)
• M26: 20,258,992 km (0.073 R)
• M27: 21,905,018 km (0.077 R)
• M28: 22,723,019 km (0.113 R)
• M29: 23,638,558 km (0.044 R)
• M30: 29,654,337 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 716.4

Radius: 5.6

Gravity: 22.84 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 7.3 AU - 10.9 AU

Year: 18008 Days

Day: 18.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 72,017,181 km

• M1: 72,405 km (0.048 R)
• M2: 262,843 km (0.082 R)
• M3: 662,719 km (0.096 R)
• M4: 878,289 km (0.073 R)
• M5: 1,101,938 km (0.113 R)
• M6: 1,363,585 km (0.047 R)
• M7: 1,770,491 km (0.095 R)
• M8: 1,954,496 km (0.096 R)
• M9: 2,608,538 km (0.043 R)
• M10: 2,847,895 km (0.096 R)
• M11: 4,674,335 km (0.112 R)
• M12: 5,174,890 km (0.097 R)
• M13: 7,635,176 km (0.109 R)
• M14: 8,277,699 km (0.096 R)
• M15: 8,586,170 km (0.086 R)
• M16: 11,780,683 km (0.12 R)
• M17: 13,254,072 km (0.087 R)
• M18: 15,225,024 km (0.069 R)
• M19: 15,844,658 km (0.108 R)
• M20: 17,051,315 km (0.048 R)
• M21: 19,465,675 km (0.088 R)
• M22: 26,812,127 km (0.109 R)
• M23: 28,754,207 km (0.111 R)
• M24: 33,560,038 km (0.075 R)
• M25: 40,322,610 km (0.112 R)
• M26: 45,196,658 km (0.053 R)
• M27: 47,121,384 km (0.095 R)
• M28: 49,940,407 km (0.119 R)
• M29: 51,823,246 km (0.091 R)
• M30: 58,502,940 km (0.076 R)
• M31: 60,594,169 km (0.106 R)
• M32: 61,561,020 km (0.065 R)
• M33: 62,931,785 km (0.091 R)
• M34: 71,586,321 km (0.113 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: 174 - 19,892 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit