🌌 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: 3.73

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.65 AU - 0.73 AU

Year: 211 Days

Day: 33.8 Hours

Environment

Temp: 119 °C

Axial Tilt: 31.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.99

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.06 AU - 1.2 AU

Year: 443 Days

Day: 36 Hours

Environment

Temp: 9 °C

Axial Tilt: 20.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.25

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.74 AU - 1.78 AU

Year: 861 Days

Day: 29 Hours

Environment

Temp: -58 °C

Axial Tilt: 42.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 10.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 377.5

Radius: 8.2

Gravity: 5.61 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 9.64 AU - 11.78 AU

Year: 12932 Days

Day: 5.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 109,894,331 km

• M1: 103,223 km (0.101 R)
• M2: 406,308 km (0.057 R)
• M3: 846,874 km (0.103 R)
• M4: 1,260,811 km (0.106 R)
• M5: 2,365,292 km (0.096 R)
• M6: 3,286,366 km (0.086 R)
• M7: 7,430,975 km (0.068 R)
• M8: 8,452,280 km (0.099 R)
• M9: 9,420,178 km (0.111 R)
• M10: 10,563,106 km (0.1 R)
• M11: 12,417,970 km (0.032 R)
• M12: 13,061,988 km (0.102 R)
• M13: 14,163,478 km (0.038 R)
• M14: 16,480,749 km (0.089 R)
• M15: 17,186,551 km (0.087 R)
• M16: 17,838,948 km (0.101 R)
• M17: 18,282,954 km (0.101 R)
• M18: 19,193,108 km (0.099 R)
• M19: 20,212,916 km (0.11 R)
• M20: 21,185,751 km (0.091 R)
• M21: 23,576,924 km (0.092 R)
• M22: 28,084,906 km (0.117 R)
• M23: 28,888,246 km (0.11 R)
• M24: 29,295,601 km (0.07 R)
• M25: 29,706,696 km (0.077 R)
• M26: 30,226,100 km (0.086 R)
• M27: 30,540,555 km (0.086 R)
• M28: 32,364,303 km (0.059 R)
• M29: 33,470,429 km (0.117 R)
• M30: 35,060,804 km (0.104 R)
• M31: 36,939,604 km (0.109 R)
• M32: 37,661,114 km (0.067 R)
• M33: 39,631,019 km (0.11 R)
• M34: 40,133,967 km (0.112 R)

Planet 5 - Ice Giant

Semi-Major Axis: 16.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 283.2

Radius: 6.3

Gravity: 7.14 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 12.41 AU - 19.69 AU

Year: 23724 Days

Day: 16.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 109,894,331 km

• M1: 78,539 km (0.083 R)
• M2: 343,028 km (0.108 R)
• M3: 563,386 km (0.109 R)
• M4: 1,625,530 km (0.11 R)
• M5: 2,358,111 km (0.117 R)
• M6: 2,660,748 km (0.113 R)
• M7: 2,964,731 km (0.09 R)
• M8: 3,812,651 km (0.116 R)
• M9: 4,108,107 km (0.032 R)
• M10: 5,409,010 km (0.106 R)
• M11: 13,041,344 km (0.107 R)
• M12: 13,307,179 km (0.116 R)
• M13: 14,126,677 km (0.072 R)
• M14: 15,344,553 km (0.098 R)
• M15: 16,708,586 km (0.12 R)
• M16: 17,420,074 km (0.072 R)
• M17: 17,823,988 km (0.068 R)
• M18: 18,151,607 km (0.11 R)
• M19: 20,918,719 km (0.114 R)
• M20: 24,858,828 km (0.116 R)
• M21: 26,521,907 km (0.11 R)
• M22: 26,841,748 km (0.078 R)
• M23: 29,722,853 km (0.101 R)
• M24: 38,626,918 km (0.042 R)
• M25: 40,711,415 km (0.066 R)
• M26: 41,137,170 km (0.042 R)
• M27: 43,902,637 km (0.095 R)
• M28: 47,726,957 km (0.117 R)
• M29: 48,836,225 km (0.101 R)
• M30: 52,434,353 km (0.064 R)
• M31: 54,126,754 km (0.102 R)

Planet 6 - Ice Giant

Semi-Major Axis: 18.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 996

Radius: 4.2

Gravity: 56.46 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 17.68 AU - 18.84 AU

Year: 28789 Days

Day: 15.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 109,894,331 km

• M1: 52,808 km (0.046 R)
• M2: 408,253 km (0.06 R)
• M3: 1,098,796 km (0.038 R)
• M4: 1,707,510 km (0.084 R)
• M5: 1,982,770 km (0.036 R)
• M6: 2,988,367 km (0.119 R)
• M7: 4,035,552 km (0.118 R)
• M8: 5,937,839 km (0.111 R)
• M9: 6,320,510 km (0.115 R)
• M10: 7,457,753 km (0.09 R)
• M11: 8,907,805 km (0.098 R)
• M12: 11,602,512 km (0.112 R)
• M13: 13,536,812 km (0.107 R)
• M14: 14,198,484 km (0.065 R)
• M15: 17,931,399 km (0.071 R)
• M16: 23,189,914 km (0.041 R)
• M17: 27,648,978 km (0.104 R)
• M18: 28,577,532 km (0.085 R)
• M19: 29,117,430 km (0.045 R)
• M20: 29,664,211 km (0.106 R)
• M21: 40,540,275 km (0.118 R)
• M22: 42,257,958 km (0.079 R)
• M23: 42,958,525 km (0.102 R)
• M24: 44,203,029 km (0.104 R)
• M25: 46,577,447 km (0.099 R)
• M26: 52,178,092 km (0.092 R)
• M27: 53,390,134 km (0.114 R)
• M28: 54,208,733 km (0.11 R)
• M29: 56,291,435 km (0.115 R)
• M30: 56,926,478 km (0.106 R)
• M31: 59,953,291 km (0.103 R)
• M32: 60,615,711 km (0.115 R)
• M33: 66,797,244 km (0.102 R)
• M34: 79,329,058 km (0.075 R)
• M35: 81,739,379 km (0.081 R)
• M36: 94,228,108 km (0.089 R)
• M37: 97,842,094 km (0.095 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 159 - 16,339 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit