🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.2 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.85 AU - 2.93 AU

Year: 1336 Days

Day: 36.2 Hours

Environment

Temp: -81 °C

Axial Tilt: 39.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.85 AU - 3.05 AU

Year: 1387 Days

Day: 21.3 Hours

Environment

Temp: -93 °C

Axial Tilt: 2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.27

Radius: 1.61

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 2.06 AU - 3.38 AU

Year: 1622 Days

Day: 25.1 Hours

Environment

Temp: -91 °C

Axial Tilt: 15.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.22

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 3.35 AU - 4.27 AU

Year: 2690 Days

Day: 30.2 Hours

Environment

Temp: -112 °C

Axial Tilt: 25.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 47,496,631 km

• M1: 32,164 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 796.6

Radius: 10.4

Gravity: 7.37 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 5.67 AU - 5.81 AU

Year: 4973 Days

Day: 9.2 Hours

Environment

Temp: -143 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 47,496,631 km

• M1: 129,402 km (0.095 R)
• M2: 460,313 km (0.035 R)
• M3: 835,953 km (0.1 R)
• M4: 1,412,054 km (0.088 R)
• M5: 1,817,764 km (0.072 R)
• M6: 2,161,240 km (0.119 R)
• M7: 3,000,933 km (0.09 R)
• M8: 4,236,163 km (0.064 R)
• M9: 5,258,664 km (0.064 R)
• M10: 5,782,855 km (0.044 R)
• M11: 6,373,617 km (0.07 R)
• M12: 6,733,849 km (0.082 R)
• M13: 7,859,723 km (0.094 R)
• M14: 8,390,047 km (0.082 R)
• M15: 10,081,550 km (0.116 R)
• M16: 11,218,344 km (0.086 R)
• M17: 12,388,050 km (0.091 R)
• M18: 15,607,097 km (0.092 R)
• M19: 16,142,807 km (0.081 R)
• M20: 17,000,452 km (0.101 R)
• M21: 18,212,643 km (0.099 R)
• M22: 21,457,870 km (0.061 R)
• M23: 22,046,238 km (0.093 R)
• M24: 22,645,228 km (0.109 R)
• M25: 25,069,611 km (0.114 R)
• M26: 25,887,313 km (0.064 R)
• M27: 26,219,271 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17.9

Radius: 12.3

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 4.73 AU - 7.69 AU

Year: 5597 Days

Day: 13 Hours

Environment

Temp: -150 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 47,496,631 km

• M1: 153,039 km (0.113 R)
• M2: 687,103 km (0.042 R)
• M3: 2,165,728 km (0.119 R)
• M4: 2,751,703 km (0.089 R)
• M5: 4,326,221 km (0.076 R)
• M6: 4,769,479 km (0.096 R)
• M7: 6,500,027 km (0.09 R)
• M8: 7,153,022 km (0.057 R)
• M9: 7,652,829 km (0.113 R)
• M10: 8,355,490 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.6

Radius: 13.2

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 6.29 AU - 6.41 AU

Year: 5787 Days

Day: 10.9 Hours

Environment

Temp: -149 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 47,496,631 km

• M1: 186,848 km (0.103 R)
• M2: 647,759 km (0.047 R)
• M3: 1,334,862 km (0.062 R)
• M4: 1,969,306 km (0.064 R)
• M5: 2,658,953 km (0.095 R)
• M6: 3,542,627 km (0.095 R)
• M7: 5,862,890 km (0.085 R)
• M8: 6,726,070 km (0.065 R)
• M9: 8,094,741 km (0.088 R)
• M10: 9,456,530 km (0.101 R)
• M11: 14,704,274 km (0.055 R)
• M12: 16,887,056 km (0.118 R)
• M13: 18,113,011 km (0.104 R)
• M14: 21,372,749 km (0.098 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 756.2

Radius: 8.1

Gravity: 11.53 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 8.89 AU - 9.63 AU

Year: 10191 Days

Day: 14.3 Hours

Environment

Temp: -175 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 47,496,631 km

• M1: 100,829 km (0.105 R)
• M2: 750,533 km (0.073 R)
• M3: 1,983,069 km (0.041 R)
• M4: 2,378,756 km (0.05 R)
• M5: 2,740,932 km (0.119 R)
• M6: 3,233,408 km (0.081 R)
• M7: 3,526,171 km (0.054 R)
• M8: 5,167,260 km (0.117 R)
• M9: 5,603,188 km (0.07 R)
• M10: 6,321,557 km (0.104 R)
• M11: 7,940,655 km (0.079 R)
• M12: 8,567,620 km (0.064 R)
• M13: 9,178,877 km (0.112 R)
• M14: 10,540,965 km (0.11 R)
• M15: 11,746,574 km (0.102 R)
• M16: 15,843,162 km (0.111 R)
• M17: 21,391,897 km (0.06 R)
• M18: 23,136,358 km (0.058 R)
• M19: 25,257,057 km (0.1 R)
• M20: 25,927,555 km (0.109 R)
• M21: 26,905,626 km (0.088 R)
• M22: 41,156,469 km (0.109 R)
• M23: 46,791,521 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 519.6

Radius: 5.7

Gravity: 15.99 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 13.36 AU - 13.94 AU

Year: 18238 Days

Day: 16.2 Hours

Environment

Temp: -183 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 47,496,631 km

• M1: 70,909 km (0.08 R)
• M2: 470,336 km (0.073 R)
• M3: 960,718 km (0.086 R)
• M4: 2,226,914 km (0.092 R)
• M5: 2,499,631 km (0.052 R)
• M6: 6,374,365 km (0.057 R)
• M7: 7,234,852 km (0.095 R)
• M8: 7,881,564 km (0.092 R)
• M9: 8,515,859 km (0.087 R)
• M10: 11,641,557 km (0.098 R)
• M11: 12,921,217 km (0.042 R)
• M12: 14,010,439 km (0.052 R)
• M13: 14,505,758 km (0.083 R)
• M14: 14,866,588 km (0.07 R)
• M15: 18,896,605 km (0.043 R)
• M16: 19,588,495 km (0.036 R)
• M17: 20,386,749 km (0.063 R)
• M18: 20,748,477 km (0.073 R)
• M19: 22,718,082 km (0.053 R)
• M20: 24,299,781 km (0.083 R)
• M21: 25,848,118 km (0.089 R)
• M22: 28,798,637 km (0.068 R)
• M23: 29,829,965 km (0.101 R)
• M24: 30,296,112 km (0.076 R)
• M25: 31,482,872 km (0.084 R)
• M26: 32,209,618 km (0.12 R)
• M27: 33,696,472 km (0.071 R)
• M28: 34,969,998 km (0.112 R)
• M29: 35,618,655 km (0.08 R)
• M30: 39,540,064 km (0.084 R)
• M31: 40,956,307 km (0.118 R)
• M32: 42,847,523 km (0.094 R)
• M33: 53,524,173 km (0.095 R)
• M34: 54,385,408 km (0.075 R)
• M35: 56,845,844 km (0.092 R)
• M36: 58,648,200 km (0.112 R)

Planet 10 - Ice Giant

Semi-Major Axis: 17.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 90.2

Radius: 4.6

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 15.83 AU - 19.79 AU

Year: 27182 Days

Day: 22.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 47,496,631 km

• M1: 59,241 km (0.1 R)
• M2: 230,530 km (0.117 R)
• M3: 377,435 km (0.113 R)
• M4: 980,614 km (0.098 R)
• M5: 1,275,023 km (0.061 R)
• M6: 5,435,938 km (0.065 R)
• M7: 6,022,810 km (0.092 R)
• M8: 6,689,119 km (0.042 R)
• M9: 7,610,492 km (0.071 R)
• M10: 9,506,047 km (0.104 R)
• M11: 11,254,248 km (0.061 R)
• M12: 12,905,659 km (0.099 R)
• M13: 13,266,489 km (0.112 R)
• M14: 14,134,456 km (0.101 R)
• M15: 16,120,667 km (0.096 R)
• M16: 22,569,681 km (0.09 R)
• M17: 42,687,752 km (0.098 R)

Kuiper Belt

Range: 30.3 - 60.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 393 - 19,122 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit