🌌 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: 3.41

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.58 AU - 0.64 AU

Year: 313 Days

Day: 37.1 Hours

Environment

Temp: -124 °C

Axial Tilt: 39.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.1

Radius: 10.9

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.8 AU - 0.8 AU

Year: 469 Days

Day: 13.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 83,916,682 km

• M1: 135,835 km (0.118 R)
• M2: 586,573 km (0.119 R)
• M3: 957,127 km (0.115 R)
• M4: 1,299,407 km (0.098 R)
• M5: 2,166,626 km (0.114 R)
• M6: 3,187,482 km (0.035 R)
• M7: 3,834,941 km (0.032 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 348.2

Radius: 14.4

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.05 AU - 1.21 AU

Year: 788 Days

Day: 5.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 92.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 83,916,682 km

• M1: 179,069 km (0.073 R)
• M2: 672,442 km (0.104 R)
• M3: 1,148,164 km (0.117 R)
• M4: 1,804,300 km (0.088 R)
• M5: 2,258,479 km (0.106 R)
• M6: 2,888,735 km (0.087 R)
• M7: 3,766,874 km (0.111 R)
• M8: 4,461,906 km (0.091 R)
• M9: 5,009,584 km (0.066 R)
• M10: 5,797,965 km (0.083 R)
• M11: 6,847,843 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 796.9

Radius: 14.1

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.93 AU - 1.35 AU

Year: 798 Days

Day: 5.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 83,916,682 km

• M1: 175,329 km (0.032 R)
• M2: 636,240 km (0.052 R)
• M3: 1,308,233 km (0.108 R)
• M4: 2,117,259 km (0.118 R)
• M5: 2,971,313 km (0.084 R)
• M6: 3,444,491 km (0.08 R)
• M7: 4,784,140 km (0.11 R)
• M8: 5,749,046 km (0.119 R)
• M9: 6,236,436 km (0.072 R)
• M10: 6,974,253 km (0.106 R)
• M11: 8,418,171 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.9

Radius: 11.7

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.04 AU - 1.46 AU

Year: 917 Days

Day: 5.4 Hours

Environment

Temp: -167 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 83,916,682 km

• M1: 150,047 km (0.094 R)
• M2: 558,898 km (0.059 R)
• M3: 1,044,193 km (0.12 R)
• M4: 1,411,007 km (0.097 R)
• M5: 1,778,419 km (0.09 R)
• M6: 3,021,727 km (0.039 R)
• M7: 3,415,020 km (0.117 R)
• M8: 3,883,262 km (0.104 R)
• M9: 5,244,901 km (0.074 R)
• M10: 6,565,252 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 465.4

Radius: 10.4

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 2.74 AU - 2.84 AU

Year: 3057 Days

Day: 8.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 83,916,682 km

• M1: 129,402 km (0.107 R)
• M2: 626,965 km (0.042 R)
• M3: 957,726 km (0.057 R)
• M4: 1,758,373 km (0.09 R)
• M5: 2,336,719 km (0.085 R)
• M6: 3,054,190 km (0.085 R)
• M7: 3,518,841 km (0.09 R)
• M8: 4,050,063 km (0.064 R)
• M9: 4,634,243 km (0.106 R)
• M10: 5,202,416 km (0.114 R)
• M11: 5,565,190 km (0.065 R)
• M12: 5,918,989 km (0.084 R)
• M13: 6,898,706 km (0.112 R)
• M14: 9,458,475 km (0.067 R)
• M15: 10,487,260 km (0.034 R)
• M16: 11,467,574 km (0.059 R)
• M17: 12,294,851 km (0.098 R)
• M18: 13,564,488 km (0.108 R)
• M19: 14,207,759 km (0.065 R)
• M20: 14,727,462 km (0.089 R)
• M21: 15,161,894 km (0.115 R)
• M22: 15,555,336 km (0.066 R)
• M23: 16,881,222 km (0.102 R)
• M24: 18,839,458 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 677.1

Radius: 10.6

Gravity: 6.03 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 4.02 AU - 5.8 AU

Year: 7137 Days

Day: 12.2 Hours

Environment

Temp: -209 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 83,916,682 km

• M1: 131,945 km (0.057 R)
• M2: 468,840 km (0.089 R)
• M3: 879,785 km (0.088 R)
• M4: 1,253,032 km (0.095 R)
• M5: 1,747,154 km (0.092 R)
• M6: 2,491,702 km (0.107 R)
• M7: 2,927,182 km (0.1 R)
• M8: 3,928,141 km (0.11 R)
• M9: 4,521,147 km (0.106 R)
• M10: 5,662,279 km (0.112 R)
• M11: 6,734,298 km (0.072 R)
• M12: 8,217,710 km (0.115 R)
• M13: 9,454,286 km (0.032 R)
• M14: 10,424,279 km (0.115 R)
• M15: 11,057,227 km (0.081 R)
• M16: 13,447,801 km (0.113 R)
• M17: 14,854,470 km (0.078 R)
• M18: 15,282,769 km (0.04 R)
• M19: 15,972,265 km (0.112 R)
• M20: 17,145,113 km (0.096 R)
• M21: 18,096,406 km (0.106 R)
• M22: 19,735,101 km (0.101 R)
• M23: 24,556,939 km (0.112 R)
• M24: 30,797,564 km (0.053 R)
• M25: 32,713,614 km (0.063 R)
• M26: 34,175,484 km (0.108 R)
• M27: 34,815,015 km (0.056 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 662.3

Radius: 3.6

Gravity: 51.1 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 7.15 AU - 8.63 AU

Year: 14539 Days

Day: 18.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 83,916,682 km

• M1: 46,974 km (0.107 R)
• M2: 333,005 km (0.117 R)
• M3: 516,561 km (0.078 R)
• M4: 746,344 km (0.098 R)
• M5: 971,937 km (0.083 R)
• M6: 1,125,425 km (0.04 R)
• M7: 1,364,781 km (0.108 R)
• M8: 2,718,493 km (0.113 R)
• M9: 3,224,582 km (0.119 R)
• M10: 3,432,972 km (0.071 R)
• M11: 4,945,257 km (0.068 R)
• M12: 5,401,082 km (0.062 R)
• M13: 5,620,691 km (0.07 R)
• M14: 6,600,258 km (0.116 R)
• M15: 8,060,483 km (0.098 R)
• M16: 13,174,037 km (0.12 R)
• M17: 13,638,838 km (0.061 R)
• M18: 13,773,775 km (0.075 R)
• M19: 15,755,797 km (0.068 R)
• M20: 18,081,745 km (0.076 R)
• M21: 19,326,100 km (0.114 R)
• M22: 24,179,803 km (0.118 R)
• M23: 28,229,118 km (0.101 R)
• M24: 29,447,892 km (0.108 R)
• M25: 36,200,142 km (0.111 R)
• M26: 39,248,348 km (0.103 R)
• M27: 42,895,245 km (0.099 R)
• M28: 49,252,406 km (0.065 R)
• M29: 52,654,262 km (0.094 R)
• M30: 60,101,693 km (0.104 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 772.6

Radius: 6.4

Gravity: 18.86 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 10.2 AU - 10.48 AU

Year: 21812 Days

Day: 23.2 Hours

Environment

Temp: -239 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 83,916,682 km

• M1: 79,736 km (0.116 R)
• M2: 1,073,215 km (0.112 R)
• M3: 2,601,357 km (0.057 R)
• M4: 2,904,742 km (0.104 R)
• M5: 3,767,323 km (0.116 R)
• M6: 4,122,917 km (0.045 R)
• M7: 5,404,971 km (0.063 R)
• M8: 5,815,617 km (0.059 R)
• M9: 6,698,843 km (0.081 R)
• M10: 7,076,129 km (0.088 R)
• M11: 7,517,293 km (0.115 R)
• M12: 9,064,584 km (0.076 R)
• M13: 11,531,004 km (0.101 R)
• M14: 13,134,843 km (0.116 R)
• M15: 13,502,105 km (0.11 R)
• M16: 14,180,681 km (0.096 R)
• M17: 20,351,743 km (0.069 R)
• M18: 25,634,942 km (0.07 R)
• M19: 25,978,119 km (0.085 R)
• M20: 26,557,063 km (0.084 R)
• M21: 27,501,325 km (0.047 R)
• M22: 29,082,873 km (0.105 R)
• M23: 30,595,757 km (0.114 R)
• M24: 30,852,915 km (0.091 R)
• M25: 32,293,244 km (0.072 R)
• M26: 34,190,294 km (0.103 R)
• M27: 34,885,475 km (0.119 R)
• M28: 36,160,498 km (0.047 R)
• M29: 43,977,286 km (0.104 R)
• M30: 44,469,313 km (0.07 R)
• M31: 50,662,815 km (0.119 R)
• M32: 78,024,116 km (0.092 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 508 - 20,008 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit