🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.39 AU - 0.63 AU

Year: 239 Days

Day: 44.5 Hours

Environment

Temp: -127 °C

Axial Tilt: 39.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 11,618,516 km

• M1: 323,281 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.1

Radius: 10.2

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.81 AU - 0.99 AU

Year: 560 Days

Day: 11.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 11,618,516 km

• M1: 126,859 km (0.071 R)
• M2: 487,240 km (0.091 R)
• M3: 806,033 km (0.11 R)
• M4: 1,187,059 km (0.098 R)
• M5: 1,799,662 km (0.096 R)
• M6: 2,244,716 km (0.1 R)
• M7: 2,667,779 km (0.034 R)
• M8: 3,009,460 km (0.083 R)
• M9: 3,435,814 km (0.119 R)
• M10: 4,037,796 km (0.113 R)
• M11: 4,750,480 km (0.042 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 554.9

Radius: 9.2

Gravity: 6.56 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.79 AU - 1.03 AU

Year: 569 Days

Day: 11.7 Hours

Environment

Temp: -148 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 11,618,516 km

• M1: 114,442 km (0.086 R)
• M2: 402,717 km (0.116 R)
• M3: 751,131 km (0.116 R)
• M4: 1,098,497 km (0.027 R)
• M5: 1,469,799 km (0.035 R)
• M6: 2,591,185 km (0.116 R)
• M7: 2,878,413 km (0.041 R)
• M8: 3,294,594 km (0.086 R)
• M9: 3,911,835 km (0.079 R)
• M10: 4,234,069 km (0.116 R)
• M11: 4,589,064 km (0.088 R)
• M12: 5,093,359 km (0.036 R)
• M13: 6,064,698 km (0.108 R)
• M14: 6,613,871 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832.4

Radius: 10

Gravity: 8.32 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.94 AU - 1.14 AU

Year: 696 Days

Day: 12.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 11,618,516 km

• M1: 124,465 km (0.116 R)
• M2: 638,035 km (0.07 R)
• M3: 970,890 km (0.1 R)
• M4: 1,365,529 km (0.112 R)
• M5: 1,875,957 km (0.087 R)
• M6: 2,307,996 km (0.065 R)
• M7: 2,666,432 km (0.113 R)
• M8: 3,347,552 km (0.083 R)
• M9: 4,109,603 km (0.12 R)
• M10: 4,639,928 km (0.104 R)
• M11: 5,454,787 km (0.115 R)
• M12: 5,876,952 km (0.062 R)
• M13: 6,593,526 km (0.066 R)
• M14: 7,505,924 km (0.08 R)
• M15: 8,151,139 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42.6

Radius: 8.7

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.93 AU - 1.17 AU

Year: 706 Days

Day: 11.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 11,618,516 km

• M1: 108,159 km (0.082 R)
• M2: 429,495 km (0.075 R)
• M3: 869,912 km (0.09 R)
• M4: 1,695,393 km (0.119 R)
• M5: 2,281,368 km (0.108 R)
• M6: 2,679,148 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.9

Radius: 14.6

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.52 AU - 1.52 AU

Year: 1229 Days

Day: 13.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 11,618,516 km

• M1: 181,612 km (0.117 R)
• M2: 648,058 km (0.037 R)
• M3: 1,427,164 km (0.066 R)
• M4: 1,915,900 km (0.11 R)
• M5: 3,038,183 km (0.077 R)
• M6: 3,722,893 km (0.075 R)
• M7: 4,455,773 km (0.036 R)
• M8: 5,106,224 km (0.055 R)
• M9: 6,035,077 km (0.062 R)
• M10: 7,547,063 km (0.059 R)
• M11: 8,585,272 km (0.112 R)
• M12: 9,095,551 km (0.081 R)
• M13: 9,868,523 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 296.5

Radius: 9.2

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.7 AU - 2.24 AU

Year: 1814 Days

Day: 10.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 11,618,516 km

• M1: 114,442 km (0.076 R)
• M2: 582,684 km (0.094 R)
• M3: 997,519 km (0.042 R)
• M4: 1,347,278 km (0.08 R)
• M5: 1,976,637 km (0.093 R)
• M6: 2,335,821 km (0.109 R)
• M7: 2,764,269 km (0.111 R)
• M8: 3,376,873 km (0.114 R)
• M9: 4,026,576 km (0.045 R)
• M10: 5,045,787 km (0.097 R)
• M11: 5,594,661 km (0.091 R)
• M12: 6,692,261 km (0.109 R)
• M13: 7,716,109 km (0.12 R)
• M14: 8,142,762 km (0.06 R)
• M15: 8,927,253 km (0.05 R)
• M16: 10,040,111 km (0.062 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: 365 - 18,568 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit