🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.55 AU - 0.75 AU

Year: 189 Days

Day: 43.5 Hours

Environment

Temp: 147 °C

Axial Tilt: 28.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 78,716,250 km

• M1: 21,542 km (0.097 R)

Planet 2 - Terrestrial

Semi-Major Axis: 4.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.42

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 3.85 AU - 5.59 AU

Year: 3690 Days

Day: 23 Hours

Environment

Temp: -131 °C

Axial Tilt: 1.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 6.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350.9

Radius: 12.8

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 5.77 AU - 7.25 AU

Year: 5978 Days

Day: 12.7 Hours

Environment

Temp: -148 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 78,716,250 km

• M1: 159,172 km (0.095 R)
• M2: 645,814 km (0.088 R)
• M3: 1,213,239 km (0.078 R)
• M4: 1,715,289 km (0.085 R)
• M5: 2,862,106 km (0.095 R)
• M6: 4,074,448 km (0.095 R)
• M7: 4,710,089 km (0.115 R)
• M8: 6,091,625 km (0.106 R)
• M9: 6,514,389 km (0.066 R)
• M10: 6,924,736 km (0.059 R)
• M11: 9,639,937 km (0.074 R)
• M12: 10,384,935 km (0.117 R)
• M13: 11,167,780 km (0.104 R)
• M14: 12,224,988 km (0.096 R)
• M15: 16,368,401 km (0.085 R)
• M16: 19,169,322 km (0.079 R)
• M17: 20,015,447 km (0.094 R)
• M18: 21,573,509 km (0.109 R)
• M19: 23,725,325 km (0.078 R)
• M20: 24,776,998 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 8.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923.5

Radius: 12.7

Gravity: 5.73 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 6.14 AU - 9.88 AU

Year: 8159 Days

Day: 7.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 78,716,250 km

• M1: 157,975 km (0.045 R)
• M2: 662,120 km (0.05 R)
• M3: 1,213,388 km (0.097 R)
• M4: 1,874,761 km (0.09 R)
• M5: 2,272,092 km (0.095 R)
• M6: 2,766,962 km (0.104 R)
• M7: 3,264,375 km (0.064 R)
• M8: 4,356,589 km (0.11 R)
• M9: 5,064,935 km (0.085 R)
• M10: 5,645,375 km (0.088 R)
• M11: 6,636,610 km (0.106 R)
• M12: 7,095,577 km (0.117 R)
• M13: 7,699,054 km (0.097 R)
• M14: 9,382,479 km (0.065 R)
• M15: 10,719,585 km (0.048 R)
• M16: 11,299,426 km (0.094 R)
• M17: 12,236,507 km (0.042 R)
• M18: 12,695,175 km (0.103 R)
• M19: 14,202,971 km (0.107 R)
• M20: 16,097,928 km (0.074 R)
• M21: 17,070,763 km (0.092 R)
• M22: 19,363,948 km (0.112 R)
• M23: 21,440,068 km (0.114 R)
• M24: 24,194,015 km (0.081 R)
• M25: 27,663,040 km (0.104 R)
• M26: 29,669,895 km (0.116 R)
• M27: 35,224,165 km (0.046 R)
• M28: 36,036,930 km (0.048 R)
• M29: 42,080,535 km (0.079 R)
• M30: 42,732,781 km (0.114 R)
• M31: 44,595,125 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.5

Radius: 13.5

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 9.39 AU - 9.89 AU

Year: 10772 Days

Day: 8.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 78,716,250 km

• M1: 167,849 km (0.07 R)
• M2: 766,539 km (0.034 R)
• M3: 1,669,811 km (0.054 R)
• M4: 2,289,895 km (0.066 R)
• M5: 3,861,719 km (0.06 R)
• M6: 4,430,491 km (0.1 R)
• M7: 5,287,088 km (0.09 R)
• M8: 5,917,493 km (0.119 R)
• M9: 11,143,845 km (0.117 R)
• M10: 12,543,333 km (0.07 R)
• M11: 14,722,674 km (0.054 R)
• M12: 17,294,112 km (0.091 R)
• M13: 19,328,494 km (0.12 R)
• M14: 20,151,880 km (0.055 R)
• M15: 22,853,618 km (0.111 R)
• M16: 25,008,426 km (0.096 R)
• M17: 25,494,170 km (0.117 R)
• M18: 26,989,401 km (0.075 R)
• M19: 27,706,872 km (0.11 R)
• M20: 30,373,604 km (0.097 R)

Planet 6 - Ice Giant

Semi-Major Axis: 15.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 596.1

Radius: 7.1

Gravity: 11.83 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 15.39 AU - 16.17 AU

Year: 22560 Days

Day: 15 Hours

Environment

Temp: -189 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 78,716,250 km

• M1: 181,911 km (0.064 R)
• M2: 531,671 km (0.11 R)
• M3: 1,438,683 km (0.101 R)
• M4: 2,385,637 km (0.045 R)
• M5: 2,837,572 km (0.105 R)
• M6: 3,911,685 km (0.081 R)
• M7: 4,135,932 km (0.053 R)
• M8: 5,708,056 km (0.085 R)
• M9: 6,081,752 km (0.1 R)
• M10: 6,831,985 km (0.096 R)
• M11: 14,573,077 km (0.116 R)
• M12: 16,401,611 km (0.076 R)
• M13: 20,796,946 km (0.042 R)
• M14: 21,881,381 km (0.06 R)
• M15: 23,525,462 km (0.111 R)
• M16: 25,806,081 km (0.078 R)
• M17: 31,308,740 km (0.081 R)
• M18: 32,079,618 km (0.097 R)
• M19: 42,184,655 km (0.095 R)
• M20: 43,600,000 km (0.114 R)
• M21: 44,561,017 km (0.107 R)
• M22: 52,222,971 km (0.12 R)
• M23: 66,443,146 km (0.096 R)
• M24: 76,380,933 km (0.117 R)

Kuiper Belt

Range: 30.5 - 53.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 457 - 15,141 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit