🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.89

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.45 AU - 0.59 AU

Year: 140 Days

Day: 36.2 Hours

Environment

Temp: 229 °C

Axial Tilt: 26.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.33

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.48 AU - 0.78 AU

Year: 186 Days

Day: 28.6 Hours

Environment

Temp: 190 °C

Axial Tilt: 11.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 99,392,511 km

• M1: 268,977 km (0.097 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.72

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.03 AU - 1.19 AU

Year: 436 Days

Day: 47.3 Hours

Environment

Temp: 6 °C

Axial Tilt: 23.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.7

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.34 AU - 1.68 AU

Year: 692 Days

Day: 46.7 Hours

Environment

Temp: -43 °C

Axial Tilt: 32.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 99,392,511 km

• M1: 799,900 km (0.116 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.54

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 3.41 AU - 4.93 AU

Year: 3174 Days

Day: 12.6 Hours

Environment

Temp: -133 °C

Axial Tilt: 47.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.5

Radius: 11.9

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 3.86 AU - 5.48 AU

Year: 3762 Days

Day: 9.6 Hours

Environment

Temp: -135 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 99,392,511 km

• M1: 148,102 km (0.099 R)
• M2: 790,326 km (0.04 R)
• M3: 2,180,539 km (0.109 R)
• M4: 3,111,636 km (0.113 R)
• M5: 3,777,346 km (0.096 R)
• M6: 4,810,619 km (0.11 R)
• M7: 5,546,640 km (0.111 R)
• M8: 7,033,643 km (0.117 R)
• M9: 7,786,120 km (0.083 R)
• M10: 10,883,095 km (0.074 R)
• M11: 11,927,139 km (0.072 R)
• M12: 12,607,959 km (0.075 R)
• M13: 13,314,510 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.9

Radius: 12.2

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 4.57 AU - 6.37 AU

Year: 4769 Days

Day: 6.4 Hours

Environment

Temp: -153 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 99,392,511 km

• M1: 151,692 km (0.036 R)
• M2: 539,899 km (0.059 R)
• M3: 974,630 km (0.103 R)
• M4: 1,508,994 km (0.105 R)
• M5: 2,819,321 km (0.057 R)
• M6: 3,761,040 km (0.072 R)
• M7: 4,780,550 km (0.081 R)
• M8: 5,329,574 km (0.068 R)
• M9: 6,826,450 km (0.094 R)
• M10: 7,329,248 km (0.036 R)
• M11: 8,877,138 km (0.076 R)
• M12: 9,669,857 km (0.073 R)
• M13: 10,509,250 km (0.067 R)
• M14: 10,925,731 km (0.082 R)
• M15: 12,287,520 km (0.05 R)
• M16: 14,717,887 km (0.062 R)
• M17: 16,711,279 km (0.094 R)
• M18: 19,683,190 km (0.101 R)
• M19: 22,369,818 km (0.109 R)
• M20: 23,552,390 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.7

Radius: 12.4

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 7.26 AU - 8.3 AU

Year: 8090 Days

Day: 5 Hours

Environment

Temp: -160 °C

Axial Tilt: 145 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 99,392,511 km

• M1: 156,031 km (0.111 R)
• M2: 1,040,004 km (0.103 R)
• M3: 1,693,149 km (0.084 R)
• M4: 3,219,945 km (0.107 R)
• M5: 5,332,566 km (0.119 R)
• M6: 6,429,417 km (0.113 R)
• M7: 7,473,162 km (0.053 R)
• M8: 8,077,238 km (0.078 R)
• M9: 8,713,627 km (0.056 R)
• M10: 9,475,080 km (0.082 R)
• M11: 11,973,365 km (0.115 R)
• M12: 13,316,454 km (0.106 R)
• M13: 15,516,142 km (0.062 R)
• M14: 16,234,062 km (0.034 R)
• M15: 18,019,213 km (0.118 R)
• M16: 19,032,888 km (0.065 R)
• M17: 21,332,806 km (0.082 R)
• M18: 22,881,892 km (0.106 R)
• M19: 23,386,336 km (0.097 R)
• M20: 27,503,718 km (0.104 R)
• M21: 32,395,868 km (0.115 R)
• M22: 33,461,005 km (0.116 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.9

Radius: 14.8

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 9.68 AU - 9.7 AU

Year: 11245 Days

Day: 13.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 99,392,511 km

• M1: 184,005 km (0.039 R)
• M2: 709,991 km (0.105 R)
• M3: 1,447,359 km (0.09 R)
• M4: 1,927,419 km (0.093 R)
• M5: 2,854,178 km (0.047 R)
• M6: 3,456,309 km (0.059 R)
• M7: 3,930,235 km (0.105 R)
• M8: 4,679,272 km (0.04 R)
• M9: 5,522,106 km (0.109 R)
• M10: 6,354,319 km (0.052 R)
• M11: 7,150,030 km (0.089 R)
• M12: 8,758,357 km (0.067 R)
• M13: 9,313,365 km (0.085 R)
• M14: 10,240,273 km (0.097 R)
• M15: 12,108,003 km (0.08 R)
• M16: 15,026,508 km (0.115 R)
• M17: 15,756,396 km (0.106 R)
• M18: 19,298,724 km (0.112 R)
• M19: 20,642,861 km (0.076 R)
• M20: 21,545,235 km (0.088 R)
• M21: 25,606,817 km (0.065 R)
• M22: 27,916,758 km (0.063 R)
• M23: 31,853,276 km (0.098 R)
• M24: 33,058,586 km (0.07 R)
• M25: 35,096,109 km (0.089 R)
• M26: 37,577,639 km (0.035 R)
• M27: 38,307,676 km (0.067 R)
• M28: 39,670,513 km (0.04 R)
• M29: 40,174,059 km (0.058 R)

Planet 10 - Ice Giant

Semi-Major Axis: 18.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 659.3

Radius: 4

Gravity: 41.21 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 14.27 AU - 23.37 AU

Year: 30436 Days

Day: 24.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 99,392,511 km

• M1: 52,210 km (0.093 R)
• M2: 239,207 km (0.116 R)
• M3: 512,373 km (0.077 R)
• M4: 658,530 km (0.069 R)
• M5: 1,093,261 km (0.089 R)
• M6: 1,639,593 km (0.036 R)
• M7: 2,523,118 km (0.088 R)
• M8: 6,312,731 km (0.096 R)
• M9: 6,455,447 km (0.08 R)
• M10: 8,512,119 km (0.102 R)
• M11: 14,756,035 km (0.081 R)
• M12: 15,519,433 km (0.067 R)
• M13: 19,432,763 km (0.113 R)
• M14: 20,765,531 km (0.095 R)
• M15: 24,419,908 km (0.036 R)
• M16: 25,008,575 km (0.062 R)
• M17: 28,222,685 km (0.059 R)
• M18: 28,740,444 km (0.061 R)
• M19: 29,661,667 km (0.116 R)
• M20: 37,907,053 km (0.038 R)
• M21: 40,797,434 km (0.074 R)
• M22: 43,658,792 km (0.089 R)
• M23: 44,350,982 km (0.032 R)
• M24: 49,965,539 km (0.062 R)
• M25: 53,630,537 km (0.096 R)
• M26: 56,035,323 km (0.085 R)
• M27: 57,058,273 km (0.113 R)
• M28: 59,352,207 km (0.108 R)
• M29: 61,058,670 km (0.065 R)
• M30: 65,919,404 km (0.109 R)
• M31: 70,083,311 km (0.059 R)
• M32: 75,654,336 km (0.115 R)
• M33: 77,659,247 km (0.098 R)
• M34: 84,419,425 km (0.096 R)
• M35: 92,126,558 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: 215 - 16,839 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit