🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.72 AU - 1.14 AU

Year: 328 Days

Day: 20.2 Hours

Environment

Temp: 140 °C

Axial Tilt: 24.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.87

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 2.09 AU - 3.05 AU

Year: 1505 Days

Day: 38.4 Hours

Environment

Temp: -93 °C

Axial Tilt: 36.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.51

Radius: 0.76

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 4.1 AU - 4.94 AU

Year: 3510 Days

Day: 15.4 Hours

Environment

Temp: -128 °C

Axial Tilt: 18.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 6.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.2

Radius: 12.8

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 5.48 AU - 8.3 AU

Year: 6606 Days

Day: 14.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,221,249 km

• M1: 161,117 km (0.087 R)
• M2: 691,441 km (0.083 R)
• M3: 1,494,184 km (0.065 R)
• M4: 1,963,173 km (0.066 R)
• M5: 2,955,456 km (0.071 R)
• M6: 4,257,855 km (0.093 R)
• M7: 6,525,609 km (0.067 R)
• M8: 8,926,206 km (0.098 R)
• M9: 9,505,449 km (0.098 R)
• M10: 10,739,631 km (0.09 R)
• M11: 11,447,079 km (0.107 R)
• M12: 12,293,205 km (0.12 R)
• M13: 15,523,173 km (0.102 R)
• M14: 16,035,845 km (0.118 R)
• M15: 17,231,132 km (0.073 R)
• M16: 19,061,312 km (0.089 R)
• M17: 20,098,923 km (0.071 R)
• M18: 20,631,641 km (0.091 R)
• M19: 23,022,215 km (0.092 R)
• M20: 24,284,222 km (0.108 R)
• M21: 32,843,016 km (0.118 R)
• M22: 34,549,778 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 495.3

Radius: 8.1

Gravity: 7.55 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 6.19 AU - 7.73 AU

Year: 6707 Days

Day: 14.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 56,221,249 km

• M1: 107,860 km (0.066 R)
• M2: 367,562 km (0.117 R)
• M3: 1,023,997 km (0.118 R)
• M4: 4,485,692 km (0.118 R)
• M5: 6,122,742 km (0.117 R)
• M6: 6,988,165 km (0.078 R)
• M7: 7,306,061 km (0.097 R)
• M8: 7,932,726 km (0.079 R)
• M9: 12,623,816 km (0.1 R)
• M10: 13,042,990 km (0.12 R)
• M11: 17,436,081 km (0.09 R)
• M12: 18,823,152 km (0.077 R)
• M13: 23,189,764 km (0.118 R)
• M14: 23,898,110 km (0.085 R)
• M15: 24,297,836 km (0.112 R)
• M16: 25,275,308 km (0.108 R)
• M17: 27,048,791 km (0.088 R)
• M18: 30,372,556 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 406.5

Radius: 9.5

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 5.6 AU - 8.64 AU

Year: 6939 Days

Day: 9 Hours

Environment

Temp: -164 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 56,221,249 km

• M1: 138,079 km (0.114 R)
• M2: 462,257 km (0.088 R)
• M3: 1,110,615 km (0.044 R)
• M4: 1,983,967 km (0.048 R)
• M5: 2,366,190 km (0.12 R)
• M6: 2,871,232 km (0.106 R)
• M7: 4,643,668 km (0.089 R)
• M8: 5,671,554 km (0.105 R)
• M9: 6,035,526 km (0.043 R)
• M10: 7,014,495 km (0.116 R)
• M11: 7,434,416 km (0.09 R)
• M12: 8,519,000 km (0.092 R)
• M13: 8,916,482 km (0.114 R)
• M14: 9,284,792 km (0.046 R)
• M15: 10,051,780 km (0.097 R)
• M16: 10,860,506 km (0.032 R)
• M17: 11,907,093 km (0.11 R)
• M18: 12,607,211 km (0.097 R)
• M19: 12,915,532 km (0.08 R)
• M20: 15,217,395 km (0.107 R)
• M21: 19,163,038 km (0.096 R)
• M22: 20,973,472 km (0.097 R)
• M23: 22,441,625 km (0.052 R)
• M24: 25,581,535 km (0.057 R)
• M25: 28,471,168 km (0.095 R)
• M26: 31,383,240 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385.5

Radius: 14.9

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 7.08 AU - 7.58 AU

Year: 7248 Days

Day: 8 Hours

Environment

Temp: -169 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 56,221,249 km

• M1: 185,352 km (0.073 R)
• M2: 967,599 km (0.115 R)
• M3: 1,678,937 km (0.065 R)
• M4: 2,201,931 km (0.069 R)
• M5: 3,740,396 km (0.105 R)
• M6: 4,496,613 km (0.07 R)
• M7: 6,158,047 km (0.088 R)
• M8: 6,872,825 km (0.117 R)
• M9: 7,534,198 km (0.119 R)
• M10: 8,704,352 km (0.102 R)
• M11: 9,521,755 km (0.063 R)
• M12: 10,211,999 km (0.106 R)
• M13: 11,168,379 km (0.105 R)
• M14: 12,946,200 km (0.098 R)
• M15: 14,066,987 km (0.115 R)
• M16: 15,078,119 km (0.095 R)
• M17: 16,440,208 km (0.095 R)
• M18: 17,562,341 km (0.085 R)
• M19: 18,469,802 km (0.075 R)
• M20: 19,204,776 km (0.073 R)
• M21: 20,378,671 km (0.115 R)
• M22: 24,665,996 km (0.027 R)
• M23: 30,341,440 km (0.11 R)
• M24: 31,933,161 km (0.114 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 550.5

Radius: 12.2

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 10.15 AU - 12.77 AU

Year: 14170 Days

Day: 12.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 56,221,249 km

• M1: 151,842 km (0.056 R)
• M2: 561,142 km (0.119 R)
• M3: 1,395,748 km (0.086 R)
• M4: 3,277,241 km (0.047 R)
• M5: 3,959,856 km (0.06 R)
• M6: 6,508,854 km (0.077 R)
• M7: 7,118,465 km (0.07 R)
• M8: 7,589,399 km (0.12 R)
• M9: 8,358,183 km (0.116 R)
• M10: 9,531,329 km (0.077 R)
• M11: 12,691,584 km (0.099 R)
• M12: 13,193,934 km (0.111 R)
• M13: 13,840,645 km (0.106 R)
• M14: 15,621,010 km (0.107 R)
• M15: 16,125,454 km (0.074 R)
• M16: 17,626,668 km (0.077 R)
• M17: 19,548,851 km (0.12 R)
• M18: 20,475,012 km (0.097 R)
• M19: 22,964,620 km (0.086 R)
• M20: 26,862,093 km (0.079 R)
• M21: 32,794,396 km (0.071 R)
• M22: 35,939,692 km (0.071 R)
• M23: 36,819,626 km (0.088 R)
• M24: 37,201,101 km (0.106 R)
• M25: 45,251,710 km (0.097 R)
• M26: 47,169,555 km (0.117 R)
• M27: 49,449,127 km (0.066 R)
• M28: 52,440,786 km (0.082 R)
• M29: 54,391,243 km (0.098 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 497 - 12,710 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit