🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.54 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.14

Radius: 0.46

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.82 AU - 1.34 AU

Year: 408 Days

Day: 13.8 Hours

Environment

Temp: 30 °C

Axial Tilt: 35.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 87,813,452 km

• M1: 132,544 km (0.089 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.03

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.66 AU - 1.78 AU

Year: 820 Days

Day: 26.3 Hours

Environment

Temp: -52 °C

Axial Tilt: 20 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 87,813,452 km

• M1: 47,423 km (0.1 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.58

Radius: 0.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 2.01 AU - 3.31 AU

Year: 1577 Days

Day: 29.2 Hours

Environment

Temp: -100 °C

Axial Tilt: 43.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.01

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.58 AU - 2.88 AU

Year: 1639 Days

Day: 27 Hours

Environment

Temp: -100 °C

Axial Tilt: 0.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 87,813,452 km

• M1: 36,651 km (0.057 R)

Asteroid Belt

Center: 4.61 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 6.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.4

Radius: 9.7

Gravity: 8.73 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 4.91 AU - 8.07 AU

Year: 6009 Days

Day: 7.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 87,813,452 km

• M1: 120,576 km (0.106 R)
• M2: 847,921 km (0.084 R)
• M3: 1,218,325 km (0.113 R)
• M4: 1,863,690 km (0.071 R)
• M5: 4,692,736 km (0.106 R)
• M6: 5,780,013 km (0.105 R)
• M7: 6,199,485 km (0.029 R)
• M8: 6,604,596 km (0.056 R)
• M9: 9,462,215 km (0.093 R)
• M10: 10,463,922 km (0.04 R)
• M11: 10,990,656 km (0.088 R)
• M12: 11,334,881 km (0.116 R)
• M13: 15,004,816 km (0.04 R)
• M14: 15,985,879 km (0.057 R)
• M15: 20,120,914 km (0.044 R)
• M16: 20,860,675 km (0.111 R)
• M17: 21,237,213 km (0.104 R)
• M18: 25,002,741 km (0.085 R)
• M19: 26,205,209 km (0.089 R)
• M20: 27,445,674 km (0.105 R)
• M21: 33,106,009 km (0.066 R)
• M22: 34,136,589 km (0.067 R)
• M23: 35,188,561 km (0.071 R)
• M24: 36,262,075 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 993.7

Radius: 14

Gravity: 5.07 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 6.27 AU - 8.45 AU

Year: 7257 Days

Day: 13.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 87,813,452 km

• M1: 174,132 km (0.113 R)
• M2: 613,950 km (0.111 R)
• M3: 1,294,620 km (0.032 R)
• M4: 2,159,894 km (0.075 R)
• M5: 5,662,429 km (0.097 R)
• M6: 6,489,556 km (0.115 R)
• M7: 10,031,734 km (0.065 R)
• M8: 10,626,086 km (0.099 R)
• M9: 12,778,650 km (0.112 R)
• M10: 14,762,318 km (0.116 R)
• M11: 15,597,523 km (0.109 R)
• M12: 18,148,017 km (0.098 R)
• M13: 20,805,773 km (0.093 R)
• M14: 21,367,064 km (0.085 R)
• M15: 25,582,881 km (0.1 R)
• M16: 29,814,856 km (0.056 R)
• M17: 30,734,733 km (0.074 R)
• M18: 37,475,314 km (0.117 R)
• M19: 39,272,134 km (0.032 R)
• M20: 41,503,386 km (0.11 R)
• M21: 43,166,615 km (0.053 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 788.8

Radius: 7.9

Gravity: 12.64 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 12.86 AU - 19 AU

Year: 23108 Days

Day: 17.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 87,813,452 km

• M1: 98,286 km (0.106 R)
• M2: 699,819 km (0.097 R)
• M3: 1,057,956 km (0.092 R)
• M4: 1,501,963 km (0.06 R)
• M5: 1,902,586 km (0.065 R)
• M6: 2,193,554 km (0.085 R)
• M7: 2,711,312 km (0.114 R)
• M8: 2,972,510 km (0.106 R)
• M9: 3,221,889 km (0.031 R)
• M10: 3,668,888 km (0.052 R)
• M11: 5,882,188 km (0.1 R)
• M12: 6,504,515 km (0.11 R)
• M13: 9,558,406 km (0.049 R)
• M14: 11,194,708 km (0.115 R)
• M15: 12,790,917 km (0.096 R)
• M16: 15,174,759 km (0.116 R)
• M17: 20,007,967 km (0.058 R)
• M18: 22,451,648 km (0.08 R)
• M19: 22,877,404 km (0.092 R)
• M20: 23,635,416 km (0.114 R)
• M21: 25,893,447 km (0.091 R)
• M22: 28,539,235 km (0.099 R)
• M23: 28,913,528 km (0.104 R)
• M24: 30,833,916 km (0.064 R)
• M25: 31,096,161 km (0.029 R)
• M26: 32,160,401 km (0.076 R)
• M27: 32,837,780 km (0.066 R)
• M28: 35,642,590 km (0.099 R)
• M29: 39,368,026 km (0.055 R)
• M30: 43,181,276 km (0.032 R)
• M31: 47,233,583 km (0.11 R)
• M32: 48,284,807 km (0.033 R)
• M33: 50,616,140 km (0.048 R)
• M34: 56,084,840 km (0.114 R)
• M35: 63,829,671 km (0.085 R)
• M36: 64,256,025 km (0.102 R)
• M37: 66,197,955 km (0.103 R)
• M38: 73,419,045 km (0.082 R)
• M39: 75,540,791 km (0.095 R)
• M40: 76,977,828 km (0.042 R)
• M41: 84,180,816 km (0.062 R)

Kuiper Belt

Range: 30.2 - 48.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 384 - 11,584 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit