🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.19

Radius: 1.77

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.59 AU - 0.79 AU

Year: 211 Days

Day: 43 Hours

Environment

Temp: 205 °C

Axial Tilt: 39.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 79,889,087 km

• M1: 52,658 km (0.101 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.73

Radius: 0.88

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.56 AU - 0.92 AU

Year: 235 Days

Day: 28 Hours

Environment

Temp: 148 °C

Axial Tilt: 22 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 79,889,087 km

• M1: 324,029 km (0.12 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.63

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.04 AU - 1.18 AU

Year: 431 Days

Day: 36.5 Hours

Environment

Temp: 26 °C

Axial Tilt: 28.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 79,889,087 km

• M1: 685,158 km (0.099 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.94

Radius: 1.3

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.05 AU - 1.41 AU

Year: 503 Days

Day: 48 Hours

Environment

Temp: -6 °C

Axial Tilt: 19.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.55

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.74 AU - 2.68 AU

Year: 1212 Days

Day: 47.4 Hours

Environment

Temp: -84 °C

Axial Tilt: 113.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 79,889,087 km

• M1: 653,593 km (0.086 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.15

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 2.63 AU - 2.95 AU

Year: 1719 Days

Day: 30.5 Hours

Environment

Temp: -105 °C

Axial Tilt: 1.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Ice Giant

Semi-Major Axis: 12.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 749.4

Radius: 4.3

Gravity: 40.53 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 11.25 AU - 14.03 AU

Year: 16581 Days

Day: 19.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 69.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 79,889,087 km

• M1: 72,405 km (0.025 R)
• M2: 315,951 km (0.115 R)
• M3: 542,741 km (0.111 R)
• M4: 789,578 km (0.105 R)
• M5: 962,214 km (0.098 R)
• M6: 1,637,199 km (0.104 R)
• M7: 3,305,963 km (0.061 R)
• M8: 5,286,190 km (0.114 R)
• M9: 6,145,780 km (0.117 R)
• M10: 7,004,771 km (0.116 R)
• M11: 7,556,936 km (0.098 R)
• M12: 8,747,436 km (0.054 R)
• M13: 8,904,514 km (0.089 R)
• M14: 9,607,325 km (0.09 R)
• M15: 11,936,564 km (0.052 R)
• M16: 13,823,741 km (0.104 R)
• M17: 15,136,612 km (0.078 R)
• M18: 16,770,819 km (0.103 R)
• M19: 17,755,622 km (0.113 R)
• M20: 25,112,995 km (0.099 R)
• M21: 27,504,915 km (0.092 R)
• M22: 30,763,306 km (0.03 R)
• M23: 34,010,926 km (0.096 R)
• M24: 35,583,948 km (0.061 R)
• M25: 60,839,060 km (0.079 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 271.6

Radius: 6.8

Gravity: 5.87 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 10.97 AU - 16.55 AU

Year: 18832 Days

Day: 22.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 79,889,087 km

• M1: 84,672 km (0.06 R)
• M2: 595,400 km (0.05 R)
• M3: 952,789 km (0.117 R)
• M4: 1,199,625 km (0.099 R)
• M5: 1,744,461 km (0.099 R)
• M6: 3,003,476 km (0.05 R)
• M7: 4,171,537 km (0.11 R)
• M8: 5,035,764 km (0.107 R)
• M9: 6,354,020 km (0.088 R)
• M10: 9,652,653 km (0.109 R)
• M11: 14,074,018 km (0.091 R)
• M12: 14,404,929 km (0.12 R)
• M13: 15,639,709 km (0.081 R)
• M14: 18,317,810 km (0.107 R)
• M15: 18,792,036 km (0.047 R)
• M16: 20,180,304 km (0.114 R)
• M17: 28,896,325 km (0.088 R)
• M18: 45,909,043 km (0.115 R)
• M19: 47,818,062 km (0.09 R)
• M20: 50,085,966 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 547.7

Radius: 5

Gravity: 21.91 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 12.99 AU - 18.77 AU

Year: 23348 Days

Day: 23.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 79,889,087 km

• M1: 70,311 km (0.087 R)
• M2: 281,543 km (0.117 R)
• M3: 439,818 km (0.07 R)
• M4: 818,151 km (0.119 R)
• M5: 2,195,798 km (0.109 R)
• M6: 3,621,914 km (0.103 R)
• M7: 4,089,707 km (0.058 R)
• M8: 5,298,009 km (0.08 R)
• M9: 5,573,568 km (0.063 R)
• M10: 6,239,278 km (0.075 R)
• M11: 7,096,773 km (0.089 R)
• M12: 8,394,086 km (0.111 R)
• M13: 12,866,913 km (0.085 R)
• M14: 13,875,502 km (0.118 R)
• M15: 14,474,791 km (0.061 R)
• M16: 22,554,721 km (0.084 R)
• M17: 24,230,517 km (0.05 R)
• M18: 26,100,191 km (0.082 R)
• M19: 31,381,295 km (0.108 R)
• M20: 53,196,404 km (0.103 R)
• M21: 57,477,447 km (0.091 R)
• M22: 63,603,031 km (0.065 R)
• M23: 67,990,886 km (0.064 R)
• M24: 73,923,189 km (0.096 R)
• M25: 77,829,938 km (0.113 R)

Planet 10 - Ice Giant

Semi-Major Axis: 19.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 335.4

Radius: 3.6

Gravity: 25.88 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 15.99 AU - 22.17 AU

Year: 30750 Days

Day: 20.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 79,889,087 km

• M1: 46,076 km (0.036 R)
• M2: 182,809 km (0.045 R)
• M3: 353,799 km (0.054 R)
• M4: 732,581 km (0.102 R)
• M5: 860,637 km (0.119 R)
• M6: 991,086 km (0.077 R)
• M7: 1,400,086 km (0.049 R)
• M8: 1,669,363 km (0.065 R)
• M9: 1,797,568 km (0.118 R)
• M10: 2,115,463 km (0.069 R)
• M11: 2,243,968 km (0.03 R)
• M12: 2,377,709 km (0.114 R)
• M13: 4,495,566 km (0.1 R)
• M14: 5,078,549 km (0.059 R)
• M15: 5,270,632 km (0.084 R)
• M16: 6,939,396 km (0.098 R)
• M17: 8,819,842 km (0.093 R)
• M18: 9,496,024 km (0.067 R)
• M19: 10,085,290 km (0.051 R)
• M20: 10,266,752 km (0.11 R)
• M21: 11,142,498 km (0.058 R)
• M22: 11,598,473 km (0.106 R)
• M23: 12,408,994 km (0.073 R)
• M24: 12,687,395 km (0.104 R)
• M25: 13,401,426 km (0.115 R)
• M26: 15,144,840 km (0.094 R)
• M27: 19,351,532 km (0.104 R)
• M28: 37,211,124 km (0.107 R)
• M29: 37,935,028 km (0.117 R)
• M30: 39,560,858 km (0.113 R)
• M31: 41,696,367 km (0.056 R)
• M32: 41,851,800 km (0.107 R)
• M33: 42,477,268 km (0.059 R)
• M34: 43,109,020 km (0.095 R)
• M35: 43,586,985 km (0.048 R)
• M36: 52,260,670 km (0.092 R)
• M37: 64,475,485 km (0.074 R)
• M38: 66,362,214 km (0.094 R)
• M39: 77,517,577 km (0.11 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: 232 - 14,247 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit