🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.1

Radius: 1.04

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.46 AU - 0.66 AU

Year: 184 Days

Day: 13.2 Hours

Environment

Temp: 25 °C

Axial Tilt: 24.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.57 AU - 0.79 AU

Year: 247 Days

Day: 27.5 Hours

Environment

Temp: -9 °C

Axial Tilt: 34.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.53

Radius: 0.78

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.15 AU - 1.49 AU

Year: 667 Days

Day: 28 Hours

Environment

Temp: -90 °C

Axial Tilt: 34 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,911,170 km

• M1: 384,766 km (0.105 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.81

Radius: 0.92

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 2.03 AU - 2.27 AU

Year: 1386 Days

Day: 24.4 Hours

Environment

Temp: -118 °C

Axial Tilt: 0.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,911,170 km

• M1: 407,355 km (0.038 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 650.7

Radius: 8.6

Gravity: 8.8 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 2.18 AU - 3.08 AU

Year: 1875 Days

Day: 14.5 Hours

Environment

Temp: -132 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 45,911,170 km

• M1: 107,112 km (0.115 R)
• M2: 443,558 km (0.088 R)
• M3: 769,980 km (0.11 R)
• M4: 1,334,413 km (0.1 R)
• M5: 2,081,355 km (0.119 R)
• M6: 2,389,377 km (0.091 R)
• M7: 2,901,600 km (0.097 R)
• M8: 3,760,741 km (0.091 R)
• M9: 4,032,411 km (0.098 R)
• M10: 4,395,485 km (0.11 R)
• M11: 5,805,445 km (0.035 R)
• M12: 6,120,198 km (0.115 R)
• M13: 9,161,374 km (0.081 R)
• M14: 10,987,964 km (0.09 R)
• M15: 11,736,402 km (0.09 R)
• M16: 12,045,172 km (0.082 R)
• M17: 12,438,764 km (0.083 R)
• M18: 12,719,260 km (0.097 R)

Asteroid Belt

Center: 3.13 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 963.6

Radius: 9.7

Gravity: 10.24 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 2.89 AU - 4.35 AU

Year: 3029 Days

Day: 6.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 45,911,170 km

• M1: 121,922 km (0.043 R)
• M2: 433,385 km (0.055 R)
• M3: 818,001 km (0.107 R)
• M4: 1,464,114 km (0.069 R)
• M5: 1,918,892 km (0.087 R)
• M6: 2,687,227 km (0.095 R)
• M7: 3,374,330 km (0.079 R)
• M8: 4,262,941 km (0.094 R)
• M9: 4,774,416 km (0.074 R)
• M10: 5,457,480 km (0.04 R)
• M11: 6,497,784 km (0.085 R)
• M12: 6,986,520 km (0.112 R)
• M13: 7,934,970 km (0.059 R)
• M14: 9,380,834 km (0.085 R)
• M15: 9,886,624 km (0.043 R)
• M16: 10,783,763 km (0.093 R)
• M17: 11,338,920 km (0.085 R)
• M18: 12,739,605 km (0.083 R)
• M19: 13,653,199 km (0.119 R)
• M20: 14,404,929 km (0.104 R)
• M21: 14,868,981 km (0.071 R)
• M22: 18,522,311 km (0.1 R)
• M23: 19,256,687 km (0.111 R)
• M24: 19,693,961 km (0.079 R)
• M25: 21,509,631 km (0.108 R)
• M26: 22,252,534 km (0.081 R)
• M27: 22,664,825 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507.1

Radius: 10.5

Gravity: 4.6 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 5.25 AU - 7.79 AU

Year: 7320 Days

Day: 11.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 45,911,170 km

• M1: 130,898 km (0.076 R)
• M2: 474,524 km (0.088 R)
• M3: 852,409 km (0.05 R)
• M4: 1,237,773 km (0.087 R)
• M5: 1,740,571 km (0.105 R)
• M6: 2,164,382 km (0.114 R)
• M7: 2,584,602 km (0.118 R)
• M8: 6,392,467 km (0.118 R)
• M9: 7,012,400 km (0.052 R)
• M10: 7,709,975 km (0.087 R)
• M11: 8,738,610 km (0.096 R)
• M12: 9,459,073 km (0.104 R)
• M13: 11,961,247 km (0.098 R)
• M14: 13,337,249 km (0.117 R)
• M15: 14,177,540 km (0.077 R)
• M16: 16,338,182 km (0.033 R)
• M17: 18,164,024 km (0.113 R)
• M18: 19,477,942 km (0.045 R)
• M19: 19,905,792 km (0.055 R)
• M20: 21,226,891 km (0.114 R)
• M21: 23,637,960 km (0.09 R)
• M22: 24,618,424 km (0.111 R)
• M23: 27,011,392 km (0.12 R)
• M24: 27,365,490 km (0.11 R)
• M25: 29,182,655 km (0.115 R)
• M26: 30,693,145 km (0.082 R)
• M27: 31,467,613 km (0.086 R)
• M28: 34,074,954 km (0.052 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 731.5

Radius: 8.7

Gravity: 9.66 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 8.48 AU - 9.96 AU

Year: 12310 Days

Day: 10.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 45,911,170 km

• M1: 123,568 km (0.119 R)
• M2: 524,640 km (0.099 R)
• M3: 1,017,714 km (0.104 R)
• M4: 1,449,903 km (0.095 R)
• M5: 2,374,717 km (0.1 R)
• M6: 4,892,748 km (0.063 R)
• M7: 5,791,981 km (0.118 R)
• M8: 7,602,713 km (0.115 R)
• M9: 8,470,082 km (0.12 R)
• M10: 9,001,753 km (0.069 R)
• M11: 9,503,953 km (0.069 R)
• M12: 10,238,628 km (0.086 R)
• M13: 11,352,833 km (0.069 R)
• M14: 13,109,411 km (0.104 R)
• M15: 13,624,327 km (0.054 R)
• M16: 15,747,569 km (0.112 R)
• M17: 16,109,596 km (0.037 R)
• M18: 24,376,823 km (0.082 R)
• M19: 33,161,360 km (0.117 R)
• M20: 35,958,242 km (0.075 R)
• M21: 41,327,459 km (0.083 R)
• M22: 42,573,609 km (0.108 R)
• M23: 47,960,778 km (0.093 R)
• M24: 49,182,544 km (0.06 R)
• M25: 49,645,998 km (0.088 R)
• M26: 54,112,991 km (0.099 R)
• M27: 54,441,956 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 12.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 149.5

Radius: 6.3

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 12.67 AU - 12.87 AU

Year: 20066 Days

Day: 16.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 45,911,170 km

• M1: 78,838 km (0.095 R)
• M2: 496,815 km (0.055 R)
• M3: 1,021,155 km (0.11 R)
• M4: 1,524,552 km (0.118 R)
• M5: 1,801,458 km (0.078 R)
• M6: 3,260,336 km (0.098 R)
• M7: 5,178,779 km (0.119 R)
• M8: 6,786,657 km (0.09 R)
• M9: 8,170,587 km (0.095 R)
• M10: 8,746,240 km (0.071 R)
• M11: 14,489,601 km (0.115 R)
• M12: 16,482,394 km (0.064 R)
• M13: 20,839,881 km (0.1 R)
• M14: 22,504,456 km (0.093 R)
• M15: 22,761,615 km (0.116 R)
• M16: 24,526,122 km (0.058 R)
• M17: 31,205,817 km (0.066 R)
• M18: 38,757,068 km (0.05 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 204 - 19,556 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit