🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.45

Radius: 1.43

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.57 AU - 0.77 AU

Year: 196 Days

Day: 45.9 Hours

Environment

Temp: 220 °C

Axial Tilt: 60.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.14

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.98 AU - 1.1 AU

Year: 380 Days

Day: 41.2 Hours

Environment

Temp: 29 °C

Axial Tilt: 2.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.42 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.53

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.29 AU - 1.55 AU

Year: 606 Days

Day: 33.7 Hours

Environment

Temp: -3 °C

Axial Tilt: 11.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 77,552,152 km

• M1: 33,809 km (0.119 R)
• M2: 90,507 km (0.041 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.29

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 2.56 AU - 2.58 AU

Year: 1476 Days

Day: 15.8 Hours

Environment

Temp: -89 °C

Axial Tilt: 14.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 77,552,152 km

• M1: 1,237,623 km (0.072 R)
• M2: 1,433,596 km (0.049 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 3.44 AU - 4.9 AU

Year: 3050 Days

Day: 31.4 Hours

Environment

Temp: -115 °C

Axial Tilt: 41.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 77,552,152 km

• M1: 28,424 km (0.032 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171.4

Radius: 9

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 4.68 AU - 7.24 AU

Year: 5211 Days

Day: 8.3 Hours

Environment

Temp: -142 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 77,552,152 km

• M1: 112,946 km (0.064 R)
• M2: 412,142 km (0.119 R)
• M3: 773,421 km (0.119 R)
• M4: 1,669,063 km (0.116 R)
• M5: 2,372,024 km (0.113 R)
• M6: 8,251,071 km (0.059 R)
• M7: 13,729,943 km (0.08 R)
• M8: 14,289,589 km (0.111 R)
• M9: 15,404,542 km (0.049 R)
• M10: 16,576,491 km (0.086 R)
• M11: 17,752,031 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 560.1

Radius: 13.1

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 9.12 AU - 12.28 AU

Year: 12536 Days

Day: 11.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 46.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 77,552,152 km

• M1: 162,912 km (0.108 R)
• M2: 637,137 km (0.11 R)
• M3: 1,174,044 km (0.116 R)
• M4: 1,786,647 km (0.108 R)
• M5: 2,259,227 km (0.12 R)
• M6: 2,858,666 km (0.043 R)
• M7: 4,409,397 km (0.088 R)
• M8: 6,237,184 km (0.067 R)
• M9: 6,932,964 km (0.093 R)
• M10: 7,594,336 km (0.103 R)
• M11: 9,632,158 km (0.091 R)
• M12: 11,160,600 km (0.109 R)
• M13: 12,603,471 km (0.106 R)
• M14: 13,276,362 km (0.047 R)
• M15: 14,494,986 km (0.108 R)
• M16: 16,139,217 km (0.068 R)
• M17: 17,677,232 km (0.108 R)
• M18: 19,633,075 km (0.092 R)
• M19: 21,642,922 km (0.112 R)
• M20: 23,419,696 km (0.079 R)
• M21: 24,437,411 km (0.117 R)
• M22: 26,660,435 km (0.041 R)
• M23: 27,667,827 km (0.103 R)
• M24: 29,758,607 km (0.112 R)
• M25: 30,189,000 km (0.114 R)
• M26: 35,926,976 km (0.098 R)
• M27: 38,158,976 km (0.093 R)
• M28: 51,489,493 km (0.059 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 957

Radius: 6.4

Gravity: 23.36 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 12.09 AU - 14.55 AU

Year: 17411 Days

Day: 22.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 77,552,152 km

• M1: 79,586 km (0.071 R)
• M2: 433,983 km (0.11 R)
• M3: 662,868 km (0.107 R)
• M4: 1,059,602 km (0.107 R)
• M5: 1,275,621 km (0.091 R)
• M6: 1,554,172 km (0.081 R)
• M7: 2,129,825 km (0.097 R)
• M8: 2,343,151 km (0.112 R)
• M9: 3,178,656 km (0.107 R)
• M10: 3,664,101 km (0.113 R)
• M11: 4,927,155 km (0.083 R)
• M12: 6,678,947 km (0.069 R)
• M13: 6,906,634 km (0.081 R)
• M14: 8,226,088 km (0.101 R)
• M15: 9,419,131 km (0.118 R)
• M16: 10,116,556 km (0.07 R)
• M17: 11,098,965 km (0.079 R)
• M18: 16,813,604 km (0.106 R)
• M19: 19,729,416 km (0.084 R)
• M20: 23,694,807 km (0.084 R)
• M21: 25,089,956 km (0.096 R)
• M22: 29,725,097 km (0.077 R)
• M23: 34,222,607 km (0.089 R)
• M24: 44,377,460 km (0.117 R)
• M25: 51,980,174 km (0.06 R)
• M26: 52,515,884 km (0.103 R)
• M27: 54,879,680 km (0.101 R)
• M28: 61,993,956 km (0.114 R)
• M29: 63,609,164 km (0.073 R)
• M30: 69,482,676 km (0.077 R)
• M31: 70,132,679 km (0.059 R)
• M32: 70,786,720 km (0.113 R)

Kuiper Belt

Range: 30.6 - 58.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 242 - 13,495 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit