🌌 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: 4.78

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.42 AU - 0.6 AU

Year: 239 Days

Day: 45.1 Hours

Environment

Temp: -115 °C

Axial Tilt: 159.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,630,069 km

• M1: 205,398 km (0.055 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.4

Radius: 14.8

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.53 AU - 0.85 AU

Year: 376 Days

Day: 14.2 Hours

Environment

Temp: -131 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,630,069 km

• M1: 184,155 km (0.079 R)
• M2: 696,528 km (0.101 R)
• M3: 1,323,941 km (0.094 R)
• M4: 2,087,638 km (0.042 R)
• M5: 2,563,060 km (0.053 R)
• M6: 3,089,944 km (0.102 R)
• M7: 3,628,496 km (0.072 R)
• M8: 4,449,489 km (0.106 R)
• M9: 5,312,071 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 685.1

Radius: 14.7

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.62 AU - 0.9 AU

Year: 435 Days

Day: 9.5 Hours

Environment

Temp: -144 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 35,630,069 km

• M1: 182,809 km (0.114 R)
• M2: 967,300 km (0.113 R)
• M3: 1,429,557 km (0.048 R)
• M4: 1,917,845 km (0.074 R)
• M5: 2,380,401 km (0.091 R)
• M6: 2,897,711 km (0.09 R)
• M7: 3,384,203 km (0.033 R)
• M8: 4,003,837 km (0.116 R)
• M9: 4,742,851 km (0.078 R)
• M10: 5,925,721 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485.3

Radius: 9.8

Gravity: 5.05 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.76 AU - 1.02 AU

Year: 551 Days

Day: 12.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 35,630,069 km

• M1: 121,922 km (0.118 R)
• M2: 444,156 km (0.104 R)
• M3: 771,775 km (0.064 R)
• M4: 1,164,171 km (0.104 R)
• M5: 1,471,445 km (0.061 R)
• M6: 1,897,200 km (0.112 R)
• M7: 2,451,909 km (0.09 R)
• M8: 2,847,446 km (0.11 R)
• M9: 3,273,501 km (0.074 R)
• M10: 4,033,009 km (0.092 R)
• M11: 4,631,550 km (0.056 R)
• M12: 5,337,502 km (0.116 R)
• M13: 5,987,954 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 407.7

Radius: 9.3

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.2 AU - 1.48 AU

Year: 1018 Days

Day: 11.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 35,630,069 km

• M1: 115,639 km (0.099 R)
• M2: 527,033 km (0.064 R)
• M3: 1,232,537 km (0.116 R)
• M4: 2,586,398 km (0.119 R)
• M5: 4,758,708 km (0.044 R)
• M6: 5,441,623 km (0.104 R)
• M7: 6,501,224 km (0.094 R)
• M8: 8,055,247 km (0.063 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 855.3

Radius: 10.4

Gravity: 7.91 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 3.55 AU - 4.45 AU

Year: 5248 Days

Day: 14 Hours

Environment

Temp: -208 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 35,630,069 km

• M1: 129,402 km (0.051 R)
• M2: 495,319 km (0.09 R)
• M3: 1,014,573 km (0.077 R)
• M4: 1,503,010 km (0.111 R)
• M5: 2,254,290 km (0.088 R)
• M6: 2,607,790 km (0.11 R)
• M7: 3,624,756 km (0.05 R)
• M8: 4,412,090 km (0.101 R)
• M9: 4,805,981 km (0.026 R)
• M10: 5,604,535 km (0.12 R)
• M11: 6,489,107 km (0.037 R)
• M12: 6,964,978 km (0.112 R)
• M13: 7,797,490 km (0.115 R)
• M14: 8,257,354 km (0.069 R)
• M15: 9,922,827 km (0.091 R)
• M16: 10,555,476 km (0.112 R)
• M17: 11,214,754 km (0.06 R)
• M18: 11,554,491 km (0.103 R)
• M19: 12,051,904 km (0.063 R)
• M20: 16,435,720 km (0.037 R)
• M21: 17,257,162 km (0.101 R)
• M22: 22,082,291 km (0.064 R)
• M23: 28,092,535 km (0.095 R)
• M24: 30,945,068 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 805.3

Radius: 8.5

Gravity: 11.15 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 3.52 AU - 5.14 AU

Year: 5911 Days

Day: 8.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 35,630,069 km

• M1: 105,766 km (0.114 R)
• M2: 407,355 km (0.061 R)
• M3: 877,242 km (0.074 R)
• M4: 1,153,848 km (0.119 R)
• M5: 1,514,379 km (0.067 R)
• M6: 2,148,824 km (0.095 R)
• M7: 2,518,480 km (0.115 R)
• M8: 2,989,713 km (0.05 R)
• M9: 3,451,971 km (0.116 R)
• M10: 4,653,691 km (0.115 R)
• M11: 6,310,936 km (0.111 R)
• M12: 7,476,154 km (0.12 R)
• M13: 7,933,474 km (0.082 R)
• M14: 8,449,886 km (0.059 R)
• M15: 9,816,612 km (0.114 R)
• M16: 13,587,376 km (0.096 R)
• M17: 14,211,199 km (0.096 R)
• M18: 15,455,106 km (0.053 R)
• M19: 17,028,726 km (0.096 R)
• M20: 21,011,171 km (0.11 R)
• M21: 25,149,347 km (0.048 R)
• M22: 26,176,037 km (0.06 R)
• M23: 29,143,311 km (0.103 R)
• M24: 31,144,182 km (0.116 R)
• M25: 34,262,550 km (0.117 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 550 - 18,553 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit