🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.87

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.64 AU - 0.78 AU

Year: 219 Days

Day: 31.6 Hours

Environment

Temp: 150 °C

Axial Tilt: 10.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.19

Radius: 0.51

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.73 AU - 0.89 AU

Year: 266 Days

Day: 36.9 Hours

Environment

Temp: 148 °C

Axial Tilt: 42.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.78

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.19 AU - 1.25 AU

Year: 492 Days

Day: 27.1 Hours

Environment

Temp: 16 °C

Axial Tilt: 23.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.52

Radius: 0.77

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.84 AU - 2.66 AU

Year: 1233 Days

Day: 18.1 Hours

Environment

Temp: -78 °C

Axial Tilt: 130.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 5.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901.8

Radius: 10.9

Gravity: 7.59 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 4.45 AU - 5.73 AU

Year: 4194 Days

Day: 11 Hours

Environment

Temp: -144 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 45,521,132 km

• M1: 135,536 km (0.038 R)
• M2: 478,264 km (0.096 R)
• M3: 958,773 km (0.106 R)
• M4: 2,199,687 km (0.115 R)
• M5: 2,631,576 km (0.072 R)
• M6: 2,987,619 km (0.076 R)
• M7: 3,710,925 km (0.103 R)
• M8: 4,622,425 km (0.117 R)
• M9: 6,819,120 km (0.085 R)
• M10: 9,187,104 km (0.114 R)
• M11: 9,802,999 km (0.12 R)
• M12: 10,622,646 km (0.094 R)
• M13: 11,394,122 km (0.109 R)
• M14: 12,105,460 km (0.104 R)
• M15: 13,564,488 km (0.085 R)
• M16: 14,636,955 km (0.112 R)
• M17: 15,363,701 km (0.106 R)
• M18: 20,514,506 km (0.114 R)
• M19: 25,020,094 km (0.095 R)
• M20: 26,795,073 km (0.083 R)
• M21: 28,566,162 km (0.096 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 679.8

Radius: 3.7

Gravity: 49.66 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 11.32 AU - 13.54 AU

Year: 16007 Days

Day: 24.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 45,521,132 km

• M1: 46,076 km (0.04 R)
• M2: 173,683 km (0.053 R)
• M3: 569,070 km (0.074 R)
• M4: 714,031 km (0.091 R)
• M5: 851,810 km (0.114 R)
• M6: 1,092,214 km (0.097 R)
• M7: 1,527,843 km (0.095 R)
• M8: 1,724,415 km (0.055 R)
• M9: 2,995,697 km (0.117 R)
• M10: 3,521,235 km (0.111 R)
• M11: 6,244,963 km (0.11 R)
• M12: 6,576,921 km (0.1 R)
• M13: 6,833,631 km (0.099 R)
• M14: 9,506,197 km (0.104 R)
• M15: 10,629,078 km (0.105 R)
• M16: 11,900,211 km (0.107 R)
• M17: 12,281,237 km (0.119 R)
• M18: 19,099,011 km (0.068 R)
• M19: 20,331,697 km (0.037 R)
• M20: 21,243,945 km (0.116 R)
• M21: 23,149,672 km (0.079 R)
• M22: 23,842,759 km (0.12 R)
• M23: 26,004,747 km (0.107 R)
• M24: 30,714,088 km (0.093 R)
• M25: 30,832,570 km (0.105 R)
• M26: 30,951,500 km (0.088 R)
• M27: 31,792,091 km (0.069 R)
• M28: 33,268,472 km (0.086 R)
• M29: 39,771,791 km (0.087 R)
• M30: 41,195,514 km (0.103 R)
• M31: 42,065,874 km (0.053 R)
• M32: 44,295,331 km (0.087 R)
• M33: 45,979,354 km (0.078 R)
• M34: 48,343,898 km (0.027 R)
• M35: 52,632,121 km (0.084 R)
• M36: 53,828,605 km (0.098 R)
• M37: 60,640,993 km (0.05 R)
• M38: 61,955,509 km (0.063 R)
• M39: 62,906,054 km (0.051 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 229

Radius: 5.1

Gravity: 8.8 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 9.32 AU - 15.54 AU

Year: 16007 Days

Day: 19.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 45,521,132 km

• M1: 182,958 km (0.086 R)
• M2: 574,306 km (0.115 R)
• M3: 799,601 km (0.1 R)
• M4: 2,114,416 km (0.106 R)
• M5: 2,328,790 km (0.082 R)
• M6: 2,557,824 km (0.103 R)
• M7: 2,718,642 km (0.097 R)
• M8: 3,383,455 km (0.083 R)
• M9: 3,857,082 km (0.1 R)
• M10: 4,069,212 km (0.098 R)
• M11: 4,289,121 km (0.068 R)
• M12: 5,510,288 km (0.092 R)
• M13: 7,102,757 km (0.099 R)
• M14: 8,750,578 km (0.078 R)
• M15: 12,837,592 km (0.075 R)
• M16: 20,018,289 km (0.097 R)
• M17: 32,001,827 km (0.07 R)
• M18: 34,658,984 km (0.118 R)
• M19: 44,037,424 km (0.111 R)
• M20: 44,573,134 km (0.102 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 265 - 12,073 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit