🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.56 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.45

Radius: 1.16

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.11 AU - 1.13 AU

Year: 533 Days

Day: 15.5 Hours

Environment

Temp: -89 °C

Axial Tilt: 26.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.75

Radius: 0.89

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 2 AU - 2.1 AU

Year: 1320 Days

Day: 23.5 Hours

Environment

Temp: -125 °C

Axial Tilt: 19.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375.9

Radius: 9.3

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 2.81 AU - 3.29 AU

Year: 2395 Days

Day: 10.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 38,505,271 km

• M1: 115,938 km (0.074 R)
• M2: 421,268 km (0.06 R)
• M3: 816,356 km (0.116 R)
• M4: 1,158,336 km (0.081 R)
• M5: 1,596,508 km (0.102 R)
• M6: 1,893,311 km (0.044 R)
• M7: 2,838,769 km (0.095 R)
• M8: 3,263,178 km (0.11 R)
• M9: 4,433,183 km (0.05 R)
• M10: 5,333,314 km (0.09 R)
• M11: 6,006,055 km (0.1 R)
• M12: 7,187,729 km (0.108 R)
• M13: 7,604,658 km (0.048 R)
• M14: 9,403,722 km (0.096 R)
• M15: 11,284,018 km (0.105 R)
• M16: 13,278,307 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888

Radius: 9.3

Gravity: 10.27 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 7.78 AU - 8.1 AU

Year: 10059 Days

Day: 13.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 38,505,271 km

• M1: 116,387 km (0.062 R)
• M2: 540,796 km (0.117 R)
• M3: 1,146,069 km (0.12 R)
• M4: 1,473,389 km (0.108 R)
• M5: 1,767,648 km (0.12 R)
• M6: 3,126,595 km (0.119 R)
• M7: 3,441,200 km (0.11 R)
• M8: 4,950,343 km (0.103 R)
• M9: 8,825,975 km (0.085 R)
• M10: 9,558,257 km (0.109 R)
• M11: 10,225,164 km (0.117 R)
• M12: 10,867,986 km (0.051 R)
• M13: 13,020,400 km (0.088 R)
• M14: 16,216,858 km (0.075 R)
• M15: 16,577,389 km (0.103 R)
• M16: 17,165,308 km (0.083 R)
• M17: 19,413,316 km (0.102 R)
• M18: 24,297,387 km (0.037 R)
• M19: 26,124,725 km (0.107 R)
• M20: 26,421,378 km (0.08 R)
• M21: 28,561,525 km (0.071 R)
• M22: 32,494,901 km (0.084 R)
• M23: 34,472,137 km (0.037 R)
• M24: 38,921,177 km (0.059 R)
• M25: 41,955,770 km (0.061 R)
• M26: 42,499,109 km (0.102 R)
• M27: 48,491,103 km (0.11 R)
• M28: 50,760,801 km (0.078 R)

Planet 5 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 81.2

Radius: 4.8

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 8.87 AU - 11.81 AU

Year: 14949 Days

Day: 20.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 38,505,271 km

• M1: 59,690 km (0.111 R)
• M2: 221,554 km (0.077 R)
• M3: 419,024 km (0.079 R)
• M4: 599,738 km (0.117 R)
• M5: 785,987 km (0.087 R)
• M6: 1,388,268 km (0.092 R)
• M7: 1,578,407 km (0.104 R)
• M8: 2,255,637 km (0.115 R)
• M9: 2,712,808 km (0.063 R)
• M10: 3,923,354 km (0.118 R)
• M11: 5,115,798 km (0.1 R)
• M12: 6,305,849 km (0.102 R)
• M13: 7,453,116 km (0.081 R)
• M14: 8,113,889 km (0.11 R)
• M15: 8,733,075 km (0.065 R)
• M16: 10,196,740 km (0.065 R)
• M17: 10,418,445 km (0.111 R)
• M18: 21,865,524 km (0.091 R)
• M19: 25,173,582 km (0.073 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 95.1

Radius: 4.8

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 10.34 AU - 14.2 AU

Year: 19323 Days

Day: 21.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 38,505,271 km

• M1: 61,335 km (0.078 R)
• M2: 226,192 km (0.11 R)
• M3: 591,211 km (0.112 R)
• M4: 978,071 km (0.045 R)
• M5: 2,728,815 km (0.109 R)
• M6: 3,312,396 km (0.114 R)
• M7: 3,470,521 km (0.092 R)
• M8: 4,000,546 km (0.089 R)
• M9: 4,722,655 km (0.037 R)
• M10: 5,622,935 km (0.102 R)
• M11: 6,920,397 km (0.094 R)
• M12: 8,117,330 km (0.062 R)
• M13: 9,764,702 km (0.1 R)
• M14: 13,133,795 km (0.078 R)
• M15: 13,416,835 km (0.049 R)
• M16: 14,112,614 km (0.097 R)
• M17: 14,349,727 km (0.078 R)
• M18: 16,671,336 km (0.034 R)
• M19: 17,748,441 km (0.093 R)
• M20: 19,159,149 km (0.081 R)
• M21: 19,449,967 km (0.099 R)
• M22: 22,522,558 km (0.062 R)
• M23: 24,089,147 km (0.05 R)
• M24: 24,427,986 km (0.086 R)
• M25: 36,577,727 km (0.064 R)
• M26: 36,913,125 km (0.074 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 242 - 13,954 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit