🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.04

Radius: 1.02

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.5 AU - 0.66 AU

Year: 164 Days

Day: 40.9 Hours

Environment

Temp: 230 °C

Axial Tilt: 22.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 88,476,060 km

• M1: 23,936 km (0.077 R)
• M2: 66,721 km (0.05 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.69

Radius: 1.69

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.68 AU - 1.04 AU

Year: 296 Days

Day: 18.8 Hours

Environment

Temp: 118 °C

Axial Tilt: 9.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.65

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.56 AU - 1.68 AU

Year: 765 Days

Day: 30.2 Hours

Environment

Temp: -49 °C

Axial Tilt: 23.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.06 AU - 2.24 AU

Year: 1169 Days

Day: 24.2 Hours

Environment

Temp: -73 °C

Axial Tilt: 13.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 2.13 AU - 3.19 AU

Year: 1609 Days

Day: 29.9 Hours

Environment

Temp: -106 °C

Axial Tilt: 15.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.99

Radius: 1.32

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 3.41 AU - 3.53 AU

Year: 2397 Days

Day: 26.9 Hours

Environment

Temp: -119 °C

Axial Tilt: 13.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 88,476,060 km

• M1: 1,162,375 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 286.7

Radius: 14.7

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 4.66 AU - 5.5 AU

Year: 4246 Days

Day: 9.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 88,476,060 km

• M1: 182,809 km (0.108 R)
• M2: 724,802 km (0.086 R)
• M3: 1,249,890 km (0.091 R)
• M4: 1,835,117 km (0.107 R)
• M5: 2,334,026 km (0.108 R)
• M6: 3,450,026 km (0.06 R)
• M7: 4,201,456 km (0.062 R)
• M8: 5,469,448 km (0.115 R)
• M9: 6,522,168 km (0.054 R)
• M10: 7,706,235 km (0.105 R)
• M11: 8,959,566 km (0.072 R)
• M12: 9,418,383 km (0.061 R)
• M13: 10,732,301 km (0.093 R)
• M14: 16,855,042 km (0.08 R)
• M15: 17,556,357 km (0.083 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.6

Radius: 12.9

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 7.56 AU - 10.58 AU

Year: 10130 Days

Day: 11.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 88,476,060 km

• M1: 160,369 km (0.098 R)
• M2: 1,339,948 km (0.065 R)
• M3: 1,927,269 km (0.096 R)
• M4: 2,524,165 km (0.057 R)
• M5: 2,943,637 km (0.11 R)
• M6: 3,367,448 km (0.095 R)
• M7: 5,521,508 km (0.096 R)
• M8: 6,769,004 km (0.089 R)
• M9: 7,699,802 km (0.066 R)
• M10: 8,592,752 km (0.072 R)
• M11: 11,344,904 km (0.083 R)
• M12: 12,815,302 km (0.119 R)
• M13: 15,105,944 km (0.118 R)
• M14: 17,010,325 km (0.111 R)
• M15: 20,124,354 km (0.082 R)
• M16: 21,365,568 km (0.095 R)
• M17: 23,204,126 km (0.088 R)
• M18: 23,920,101 km (0.075 R)
• M19: 26,071,319 km (0.036 R)
• M20: 28,438,705 km (0.087 R)
• M21: 29,535,556 km (0.1 R)
• M22: 32,796,640 km (0.084 R)

Planet 9 - Gas Giant

Semi-Major Axis: 10.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 276

Radius: 12.9

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 8.54 AU - 11.72 AU

Year: 11957 Days

Day: 7.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 88,476,060 km

• M1: 164,857 km (0.098 R)
• M2: 606,919 km (0.108 R)
• M3: 1,309,729 km (0.115 R)
• M4: 2,480,632 km (0.113 R)
• M5: 3,430,130 km (0.052 R)
• M6: 4,154,333 km (0.105 R)
• M7: 7,061,767 km (0.092 R)
• M8: 8,072,152 km (0.052 R)
• M9: 9,581,594 km (0.1 R)
• M10: 12,053,998 km (0.104 R)
• M11: 13,552,969 km (0.101 R)
• M12: 14,079,254 km (0.102 R)
• M13: 16,918,322 km (0.119 R)
• M14: 22,222,764 km (0.097 R)
• M15: 25,869,361 km (0.039 R)
• M16: 26,954,245 km (0.089 R)
• M17: 28,163,445 km (0.066 R)
• M18: 29,701,012 km (0.089 R)
• M19: 33,047,965 km (0.058 R)
• M20: 34,325,082 km (0.106 R)
• M21: 39,172,053 km (0.09 R)

Planet 10 - Ice Giant

Semi-Major Axis: 15.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 776.3

Radius: 6.5

Gravity: 18.37 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 14.39 AU - 17.45 AU

Year: 23557 Days

Day: 21.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 88,476,060 km

• M1: 81,232 km (0.09 R)
• M2: 284,086 km (0.086 R)
• M3: 1,022,053 km (0.032 R)
• M4: 2,127,132 km (0.089 R)
• M5: 2,396,558 km (0.12 R)
• M6: 3,710,626 km (0.102 R)
• M7: 4,102,722 km (0.065 R)
• M8: 4,631,251 km (0.118 R)
• M9: 5,528,689 km (0.064 R)
• M10: 6,723,826 km (0.12 R)
• M11: 7,457,753 km (0.076 R)
• M12: 7,870,344 km (0.107 R)
• M13: 8,082,324 km (0.111 R)
• M14: 10,416,949 km (0.12 R)
• M15: 11,263,373 km (0.08 R)
• M16: 13,845,881 km (0.064 R)
• M17: 14,077,309 km (0.11 R)
• M18: 15,687,730 km (0.096 R)
• M19: 17,061,488 km (0.052 R)
• M20: 18,607,133 km (0.085 R)
• M21: 21,249,929 km (0.12 R)
• M22: 22,821,305 km (0.035 R)
• M23: 26,547,937 km (0.101 R)
• M24: 40,279,077 km (0.111 R)
• M25: 42,028,923 km (0.052 R)
• M26: 43,168,560 km (0.068 R)
• M27: 51,174,140 km (0.069 R)
• M28: 51,543,049 km (0.116 R)
• M29: 55,913,850 km (0.025 R)
• M30: 68,241,911 km (0.097 R)
• M31: 74,205,630 km (0.056 R)
• M32: 74,678,359 km (0.097 R)
• M33: 82,515,942 km (0.102 R)
• M34: 85,590,926 km (0.108 R)
• M35: 86,632,725 km (0.119 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 274 - 15,107 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit