🌌 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: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.53

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.62 AU - 0.7 AU

Year: 191 Days

Day: 27.5 Hours

Environment

Temp: 177 °C

Axial Tilt: 26.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.35

Radius: 0.66

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.69 AU - 0.75 AU

Year: 218 Days

Day: 45.5 Hours

Environment

Temp: 202 °C

Axial Tilt: 14 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.1

Radius: 1.04

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.84 AU - 0.86 AU

Year: 279 Days

Day: 12.2 Hours

Environment

Temp: 119 °C

Axial Tilt: 27.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 2.75 AU - 4.15 AU

Year: 2284 Days

Day: 27.1 Hours

Environment

Temp: -100 °C

Axial Tilt: 4.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.47

Radius: 1.44

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 3.36 AU - 3.54 AU

Year: 2284 Days

Day: 29.8 Hours

Environment

Temp: -115 °C

Axial Tilt: 34.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.29

Radius: 1.39

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 3.34 AU - 5.34 AU

Year: 3223 Days

Day: 31.2 Hours

Environment

Temp: -119 °C

Axial Tilt: 46.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.24

Radius: 0.57

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 4.56 AU - 4.94 AU

Year: 3690 Days

Day: 14.4 Hours

Environment

Temp: -127 °C

Axial Tilt: 12.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,577,981 km

• M1: 20,046 km (0.062 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.9

Radius: 9.2

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 5.7 AU - 7.56 AU

Year: 6085 Days

Day: 12.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,577,981 km

• M1: 114,592 km (0.099 R)
• M2: 424,409 km (0.069 R)
• M3: 770,429 km (0.114 R)
• M4: 1,584,989 km (0.051 R)
• M5: 4,121,870 km (0.118 R)
• M6: 4,676,429 km (0.075 R)
• M7: 5,845,986 km (0.064 R)
• M8: 6,327,541 km (0.035 R)
• M9: 7,543,024 km (0.084 R)
• M10: 8,187,491 km (0.03 R)
• M11: 9,182,766 km (0.082 R)
• M12: 9,876,003 km (0.069 R)
• M13: 10,958,044 km (0.047 R)
• M14: 12,310,110 km (0.052 R)
• M15: 14,514,733 km (0.115 R)
• M16: 20,979,755 km (0.097 R)
• M17: 25,264,088 km (0.114 R)
• M18: 27,361,151 km (0.05 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 714.1

Radius: 8.1

Gravity: 10.88 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 8.92 AU - 9.66 AU

Year: 10093 Days

Day: 13.8 Hours

Environment

Temp: -174 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,577,981 km

• M1: 102,175 km (0.096 R)
• M2: 409,749 km (0.087 R)
• M3: 881,730 km (0.108 R)
• M4: 2,493,348 km (0.118 R)
• M5: 4,944,509 km (0.064 R)
• M6: 5,330,920 km (0.107 R)
• M7: 9,820,951 km (0.086 R)
• M8: 10,589,435 km (0.085 R)
• M9: 14,131,164 km (0.055 R)
• M10: 15,786,764 km (0.113 R)
• M11: 17,864,529 km (0.115 R)
• M12: 19,557,678 km (0.118 R)
• M13: 26,910,413 km (0.068 R)
• M14: 36,998,097 km (0.112 R)
• M15: 39,482,020 km (0.112 R)
• M16: 39,736,336 km (0.065 R)
• M17: 40,764,672 km (0.109 R)
• M18: 42,606,670 km (0.099 R)

Planet 10 - Gas Giant

Semi-Major Axis: 10.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926.8

Radius: 9.3

Gravity: 10.72 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 9.18 AU - 11.92 AU

Year: 12214 Days

Day: 13.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 60,577,981 km

• M1: 115,639 km (0.118 R)
• M2: 407,505 km (0.095 R)
• M3: 920,476 km (0.112 R)
• M4: 1,279,511 km (0.031 R)
• M5: 2,348,238 km (0.086 R)
• M6: 2,775,190 km (0.109 R)
• M7: 3,381,211 km (0.102 R)
• M8: 3,757,749 km (0.084 R)
• M9: 4,627,212 km (0.078 R)
• M10: 5,266,144 km (0.074 R)
• M11: 7,856,282 km (0.107 R)
• M12: 10,677,099 km (0.09 R)
• M13: 14,455,941 km (0.104 R)
• M14: 16,339,827 km (0.116 R)
• M15: 17,976,727 km (0.061 R)
• M16: 18,793,382 km (0.03 R)
• M17: 21,122,023 km (0.118 R)
• M18: 25,116,435 km (0.041 R)
• M19: 25,521,247 km (0.08 R)
• M20: 25,827,773 km (0.088 R)
• M21: 27,718,690 km (0.101 R)
• M22: 28,151,178 km (0.098 R)
• M23: 30,152,947 km (0.071 R)
• M24: 31,188,613 km (0.067 R)
• M25: 33,452,627 km (0.102 R)
• M26: 35,696,595 km (0.047 R)
• M27: 45,828,709 km (0.032 R)
• M28: 46,585,525 km (0.086 R)
• M29: 48,592,231 km (0.093 R)
• M30: 48,905,937 km (0.082 R)
• M31: 49,221,140 km (0.114 R)
• M32: 57,546,561 km (0.108 R)
• M33: 58,604,667 km (0.092 R)
• M34: 60,396,849 km (0.049 R)

Kuiper Belt

Range: 30.8 - 58.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 419 - 19,535 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit