🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.97

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.47 AU - 0.65 AU

Year: 275 Days

Day: 32.2 Hours

Environment

Temp: -113 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 563.3

Radius: 8.5

Gravity: 7.8 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.71 AU - 0.71 AU

Year: 392 Days

Day: 8.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 53,901,365 km

• M1: 106,065 km (0.075 R)
• M2: 397,930 km (0.049 R)
• M3: 696,079 km (0.09 R)
• M4: 1,128,118 km (0.115 R)
• M5: 1,710,203 km (0.103 R)
• M6: 2,033,783 km (0.079 R)
• M7: 2,407,030 km (0.071 R)
• M8: 3,247,770 km (0.113 R)
• M9: 3,675,171 km (0.036 R)
• M10: 4,100,627 km (0.101 R)
• M11: 4,461,607 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.9

Radius: 9.5

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.95 AU - 1.97 AU

Year: 1800 Days

Day: 10.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 53,901,365 km

• M1: 119,080 km (0.118 R)
• M2: 578,944 km (0.092 R)
• M3: 925,861 km (0.097 R)
• M4: 3,318,081 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 849.2

Radius: 10.9

Gravity: 7.15 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 2.24 AU - 3.58 AU

Year: 3256 Days

Day: 10.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 53,901,365 km

• M1: 135,685 km (0.1 R)
• M2: 551,867 km (0.043 R)
• M3: 1,423,873 km (0.074 R)
• M4: 3,446,137 km (0.093 R)
• M5: 3,826,265 km (0.055 R)
• M6: 5,037,858 km (0.109 R)
• M7: 6,109,876 km (0.106 R)
• M8: 6,669,522 km (0.1 R)
• M9: 7,490,665 km (0.096 R)
• M10: 8,664,559 km (0.115 R)
• M11: 9,333,710 km (0.052 R)
• M12: 10,117,154 km (0.092 R)
• M13: 11,157,608 km (0.107 R)
• M14: 11,859,970 km (0.12 R)
• M15: 12,406,002 km (0.093 R)
• M16: 14,347,782 km (0.084 R)
• M17: 15,876,672 km (0.078 R)
• M18: 18,581,252 km (0.09 R)
• M19: 18,947,318 km (0.042 R)
• M20: 22,808,140 km (0.074 R)
• M21: 23,157,601 km (0.061 R)
• M22: 24,011,057 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26

Radius: 14.9

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 3.42 AU - 5.36 AU

Year: 6034 Days

Day: 7.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 53,901,365 km

• M1: 185,352 km (0.119 R)
• M2: 2,130,573 km (0.101 R)
• M3: 2,935,110 km (0.039 R)
• M4: 6,633,020 km (0.091 R)
• M5: 7,234,104 km (0.098 R)
• M6: 9,675,541 km (0.028 R)
• M7: 11,401,153 km (0.065 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 166.8

Radius: 10.1

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 4.07 AU - 6.39 AU

Year: 7846 Days

Day: 7.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,901,365 km

• M1: 192,233 km (0.12 R)
• M2: 737,218 km (0.105 R)
• M3: 1,594,115 km (0.101 R)
• M4: 5,543,947 km (0.111 R)
• M5: 7,780,286 km (0.083 R)
• M6: 8,233,867 km (0.067 R)
• M7: 9,309,625 km (0.117 R)
• M8: 10,268,547 km (0.108 R)
• M9: 12,195,817 km (0.078 R)
• M10: 13,441,817 km (0.11 R)
• M11: 16,983,547 km (0.07 R)
• M12: 21,103,323 km (0.111 R)
• M13: 22,753,387 km (0.043 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 892.4

Radius: 5.2

Gravity: 33 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 5.19 AU - 7.47 AU

Year: 10448 Days

Day: 21.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 53,901,365 km

• M1: 74,649 km (0.102 R)
• M2: 343,477 km (0.025 R)
• M3: 630,106 km (0.115 R)
• M4: 1,089,372 km (0.081 R)
• M5: 1,607,280 km (0.108 R)
• M6: 2,682,589 km (0.114 R)
• M7: 3,258,242 km (0.115 R)
• M8: 3,458,852 km (0.09 R)
• M9: 4,557,499 km (0.114 R)
• M10: 4,937,927 km (0.093 R)
• M11: 5,442,819 km (0.068 R)
• M12: 6,093,271 km (0.069 R)
• M13: 8,636,584 km (0.078 R)
• M14: 9,878,247 km (0.112 R)
• M15: 10,193,150 km (0.036 R)
• M16: 10,514,636 km (0.111 R)
• M17: 11,927,588 km (0.092 R)
• M18: 12,648,650 km (0.071 R)
• M19: 13,020,101 km (0.12 R)
• M20: 13,849,472 km (0.096 R)
• M21: 17,827,578 km (0.101 R)
• M22: 19,333,430 km (0.088 R)
• M23: 22,057,907 km (0.068 R)
• M24: 23,234,344 km (0.062 R)
• M25: 24,167,237 km (0.111 R)
• M26: 24,642,958 km (0.081 R)
• M27: 26,407,166 km (0.104 R)
• M28: 27,732,603 km (0.117 R)
• M29: 28,464,286 km (0.091 R)
• M30: 33,361,073 km (0.105 R)
• M31: 33,596,091 km (0.047 R)
• M32: 34,188,499 km (0.086 R)
• M33: 35,150,862 km (0.107 R)
• M34: 36,254,894 km (0.092 R)
• M35: 37,129,444 km (0.113 R)
• M36: 42,673,840 km (0.094 R)
• M37: 47,844,989 km (0.049 R)
• M38: 49,048,205 km (0.11 R)
• M39: 50,580,386 km (0.119 R)
• M40: 53,578,926 km (0.119 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 458 - 11,216 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit