🌌 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: 3.93

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.5 AU - 0.52 AU

Year: 239 Days

Day: 35.9 Hours

Environment

Temp: -114 °C

Axial Tilt: 6.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 818

Radius: 12.5

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.69 AU - 0.77 AU

Year: 409 Days

Day: 14.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 79,623,999 km

• M1: 155,731 km (0.058 R)
• M2: 818,300 km (0.088 R)
• M3: 1,222,215 km (0.112 R)
• M4: 1,916,947 km (0.096 R)
• M5: 2,510,402 km (0.092 R)
• M6: 3,055,985 km (0.082 R)
• M7: 3,667,242 km (0.113 R)
• M8: 4,373,045 km (0.074 R)
• M9: 5,231,138 km (0.03 R)
• M10: 6,038,368 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 931.7

Radius: 11.8

Gravity: 6.69 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.94 AU - 1.12 AU

Year: 686 Days

Day: 10.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 79,623,999 km

• M1: 146,756 km (0.026 R)
• M2: 534,962 km (0.031 R)
• M3: 902,374 km (0.027 R)
• M4: 1,524,701 km (0.112 R)
• M5: 2,074,922 km (0.112 R)
• M6: 2,505,914 km (0.03 R)
• M7: 2,910,427 km (0.096 R)
• M8: 3,372,385 km (0.117 R)
• M9: 3,973,020 km (0.067 R)
• M10: 4,593,702 km (0.073 R)
• M11: 6,253,640 km (0.111 R)
• M12: 8,408,148 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 19.2

Radius: 11.4

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.94 AU - 1.28 AU

Year: 767 Days

Day: 14.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 79,623,999 km

• M1: 143,764 km (0.113 R)
• M2: 700,716 km (0.077 R)
• M3: 1,317,508 km (0.101 R)
• M4: 1,768,247 km (0.102 R)

Planet 5 - Ice Giant

Semi-Major Axis: 11.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 533.5

Radius: 3.7

Gravity: 38.97 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 8.69 AU - 13.51 AU

Year: 24260 Days

Day: 24.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 79,623,999 km

• M1: 48,919 km (0.119 R)
• M2: 205,248 km (0.118 R)
• M3: 636,090 km (0.065 R)
• M4: 2,303,807 km (0.071 R)
• M5: 2,462,830 km (0.062 R)
• M6: 3,173,719 km (0.074 R)
• M7: 3,428,783 km (0.096 R)
• M8: 6,506,311 km (0.095 R)
• M9: 6,871,180 km (0.089 R)
• M10: 9,874,357 km (0.112 R)
• M11: 13,213,681 km (0.076 R)
• M12: 15,253,597 km (0.11 R)
• M13: 18,376,453 km (0.098 R)
• M14: 21,598,941 km (0.083 R)
• M15: 23,028,498 km (0.115 R)
• M16: 23,980,090 km (0.101 R)
• M17: 35,394,108 km (0.117 R)
• M18: 38,393,845 km (0.104 R)
• M19: 39,880,100 km (0.067 R)
• M20: 54,091,448 km (0.091 R)
• M21: 72,002,951 km (0.108 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 184 - 15,492 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit