🌌 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: 2.9

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.52 AU - 0.52 AU

Year: 138 Days

Day: 13.3 Hours

Environment

Temp: 179 °C

Axial Tilt: 14.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 55,542,291 km

• M1: 35,754 km (0.07 R)
• M2: 124,914 km (0.109 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.83

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.51 AU - 0.71 AU

Year: 176 Days

Day: 24.4 Hours

Environment

Temp: 128 °C

Axial Tilt: 14.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 55,542,291 km

• M1: 45,179 km (0.092 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.31

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.91 AU - 2.87 AU

Year: 1363 Days

Day: 46 Hours

Environment

Temp: -79 °C

Axial Tilt: 27.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.86 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488.6

Radius: 11.8

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 6.33 AU - 8.33 AU

Year: 7322 Days

Day: 11.3 Hours

Environment

Temp: -157 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 55,542,291 km

• M1: 146,756 km (0.11 R)
• M2: 867,219 km (0.088 R)
• M3: 1,859,352 km (0.108 R)
• M4: 2,281,966 km (0.085 R)
• M5: 3,303,719 km (0.12 R)
• M6: 5,275,419 km (0.077 R)
• M7: 5,755,030 km (0.114 R)
• M8: 6,871,479 km (0.087 R)
• M9: 8,768,380 km (0.053 R)
• M10: 13,349,216 km (0.104 R)
• M11: 13,903,028 km (0.067 R)
• M12: 15,175,657 km (0.094 R)
• M13: 16,524,431 km (0.069 R)
• M14: 17,620,236 km (0.1 R)
• M15: 19,179,045 km (0.072 R)
• M16: 21,800,748 km (0.111 R)
• M17: 25,826,277 km (0.1 R)
• M18: 26,426,763 km (0.096 R)
• M19: 26,861,345 km (0.058 R)
• M20: 28,284,320 km (0.101 R)
• M21: 30,894,354 km (0.108 R)
• M22: 31,473,896 km (0.114 R)
• M23: 33,864,769 km (0.099 R)
• M24: 34,791,827 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813.8

Radius: 10.4

Gravity: 7.52 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 6.43 AU - 8.89 AU

Year: 7822 Days

Day: 13.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 55,542,291 km

• M1: 129,402 km (0.059 R)
• M2: 452,833 km (0.118 R)
• M3: 884,572 km (0.103 R)
• M4: 1,221,317 km (0.075 R)
• M5: 2,395,212 km (0.086 R)
• M6: 3,358,472 km (0.115 R)
• M7: 4,311,710 km (0.105 R)
• M8: 5,532,728 km (0.047 R)
• M9: 5,998,426 km (0.081 R)
• M10: 7,514,750 km (0.064 R)
• M11: 8,298,044 km (0.105 R)
• M12: 11,446,182 km (0.111 R)
• M13: 12,370,697 km (0.105 R)
• M14: 13,226,995 km (0.076 R)
• M15: 14,000,865 km (0.045 R)
• M16: 14,930,765 km (0.048 R)
• M17: 16,639,622 km (0.072 R)
• M18: 17,470,787 km (0.115 R)
• M19: 19,366,192 km (0.052 R)
• M20: 20,285,770 km (0.102 R)
• M21: 21,395,039 km (0.066 R)
• M22: 23,390,076 km (0.057 R)
• M23: 25,325,124 km (0.105 R)
• M24: 27,555,180 km (0.119 R)
• M25: 31,245,011 km (0.093 R)
• M26: 31,662,689 km (0.113 R)
• M27: 33,153,880 km (0.067 R)
• M28: 34,691,447 km (0.055 R)
• M29: 35,932,361 km (0.032 R)
• M30: 39,224,412 km (0.056 R)
• M31: 41,569,508 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 597.4

Radius: 11.9

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 6.51 AU - 8.93 AU

Year: 7914 Days

Day: 7.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,542,291 km

• M1: 148,850 km (0.069 R)
• M2: 569,369 km (0.116 R)
• M3: 1,427,014 km (0.112 R)
• M4: 1,923,978 km (0.111 R)
• M5: 3,383,305 km (0.083 R)
• M6: 4,998,065 km (0.089 R)
• M7: 6,226,563 km (0.052 R)
• M8: 7,530,158 km (0.077 R)
• M9: 8,537,401 km (0.099 R)
• M10: 9,450,995 km (0.108 R)
• M11: 10,285,003 km (0.117 R)
• M12: 11,016,986 km (0.095 R)
• M13: 11,679,106 km (0.033 R)
• M14: 13,365,523 km (0.071 R)
• M15: 13,767,642 km (0.081 R)
• M16: 20,133,779 km (0.113 R)
• M17: 20,510,766 km (0.091 R)
• M18: 23,449,616 km (0.094 R)
• M19: 28,699,155 km (0.065 R)
• M20: 35,994,744 km (0.067 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.7

Radius: 12.1

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 7.48 AU - 8.6 AU

Year: 8411 Days

Day: 10.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 55,542,291 km

• M1: 154,086 km (0.032 R)
• M2: 531,222 km (0.057 R)
• M3: 1,052,870 km (0.089 R)
• M4: 1,545,496 km (0.061 R)
• M5: 6,066,194 km (0.098 R)
• M6: 7,830,701 km (0.118 R)
• M7: 9,154,043 km (0.108 R)
• M8: 9,596,853 km (0.081 R)
• M9: 12,239,948 km (0.094 R)
• M10: 13,728,896 km (0.09 R)
• M11: 15,834,486 km (0.054 R)
• M12: 20,153,077 km (0.105 R)
• M13: 31,030,338 km (0.057 R)
• M14: 34,629,663 km (0.111 R)
• M15: 35,489,701 km (0.113 R)
• M16: 36,806,611 km (0.097 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.3

Radius: 14

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 10.47 AU - 11.43 AU

Year: 13369 Days

Day: 9 Hours

Environment

Temp: -181 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 55,542,291 km

• M1: 186,100 km (0.052 R)
• M2: 686,804 km (0.085 R)
• M3: 1,363,734 km (0.098 R)
• M4: 2,163,933 km (0.086 R)
• M5: 4,700,215 km (0.115 R)
• M6: 5,563,395 km (0.091 R)
• M7: 7,432,621 km (0.064 R)
• M8: 8,324,224 km (0.118 R)
• M9: 9,436,334 km (0.065 R)
• M10: 10,107,431 km (0.117 R)
• M11: 12,990,481 km (0.048 R)
• M12: 13,756,721 km (0.054 R)
• M13: 16,310,357 km (0.103 R)
• M14: 17,506,990 km (0.053 R)
• M15: 20,327,807 km (0.081 R)
• M16: 21,801,945 km (0.088 R)
• M17: 27,060,160 km (0.044 R)
• M18: 29,381,620 km (0.106 R)
• M19: 29,817,548 km (0.096 R)
• M20: 32,524,522 km (0.098 R)
• M21: 34,659,433 km (0.107 R)
• M22: 35,637,654 km (0.092 R)
• M23: 38,034,810 km (0.089 R)
• M24: 39,206,909 km (0.048 R)
• M25: 39,735,588 km (0.054 R)
• M26: 40,403,094 km (0.119 R)
• M27: 41,623,513 km (0.066 R)
• M28: 44,566,402 km (0.098 R)
• M29: 45,432,125 km (0.084 R)
• M30: 53,087,946 km (0.059 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 377 - 12,421 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit