🌌 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: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.04

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.55 AU - 0.85 AU

Year: 207 Days

Day: 15.5 Hours

Environment

Temp: 155 °C

Axial Tilt: 48.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 70,843,429 km

• M1: 41,139 km (0.032 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.05

Radius: 1.33

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.83 AU - 0.85 AU

Year: 272 Days

Day: 20.5 Hours

Environment

Temp: 151 °C

Axial Tilt: 27.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 70,843,429 km

• M1: 34,557 km (0.095 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.97

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.88 AU - 2.58 AU

Year: 1176 Days

Day: 37.6 Hours

Environment

Temp: -75 °C

Axial Tilt: 14.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.25

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.92 AU - 2.78 AU

Year: 1272 Days

Day: 12.5 Hours

Environment

Temp: -62 °C

Axial Tilt: 6.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,843,429 km

• M1: 44,431 km (0.086 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.54

Radius: 0.78

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 3.65 AU - 3.71 AU

Year: 2493 Days

Day: 32.8 Hours

Environment

Temp: -101 °C

Axial Tilt: 13.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,843,429 km

• M1: 626,366 km (0.072 R)

Asteroid Belt

Center: 4.7 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 868.3

Radius: 11.8

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 5.09 AU - 6.33 AU

Year: 4818 Days

Day: 5.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 70,843,429 km

• M1: 151,243 km (0.059 R)
• M2: 679,174 km (0.098 R)
• M3: 1,092,064 km (0.102 R)
• M4: 1,602,792 km (0.078 R)
• M5: 2,652,221 km (0.117 R)
• M6: 3,155,767 km (0.081 R)
• M7: 3,834,642 km (0.11 R)
• M8: 6,211,154 km (0.084 R)
• M9: 7,174,115 km (0.07 R)
• M10: 7,894,280 km (0.098 R)
• M11: 9,353,308 km (0.097 R)
• M12: 10,169,065 km (0.112 R)
• M13: 12,695,922 km (0.104 R)
• M14: 13,427,755 km (0.102 R)
• M15: 14,353,916 km (0.085 R)
• M16: 15,615,325 km (0.1 R)
• M17: 17,579,844 km (0.027 R)
• M18: 18,095,807 km (0.076 R)
• M19: 18,754,786 km (0.116 R)
• M20: 19,566,653 km (0.101 R)
• M21: 20,051,051 km (0.064 R)
• M22: 20,543,378 km (0.084 R)
• M23: 21,994,477 km (0.118 R)
• M24: 25,672,191 km (0.111 R)
• M25: 26,673,151 km (0.112 R)
• M26: 27,183,130 km (0.118 R)
• M27: 27,873,374 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.5

Radius: 14.7

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 5.62 AU - 7.92 AU

Year: 6220 Days

Day: 9 Hours

Environment

Temp: -149 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 70,843,429 km

• M1: 182,958 km (0.051 R)
• M2: 849,716 km (0.119 R)
• M3: 1,521,410 km (0.116 R)
• M4: 2,375,165 km (0.12 R)
• M5: 3,005,571 km (0.096 R)
• M6: 4,677,028 km (0.066 R)
• M7: 6,574,378 km (0.112 R)
• M8: 7,089,144 km (0.063 R)
• M9: 7,696,212 km (0.08 R)
• M10: 9,125,470 km (0.087 R)
• M11: 10,318,962 km (0.111 R)
• M12: 11,100,461 km (0.085 R)
• M13: 13,015,164 km (0.103 R)
• M14: 13,830,024 km (0.063 R)
• M15: 14,576,966 km (0.085 R)
• M16: 16,534,753 km (0.068 R)
• M17: 17,779,109 km (0.059 R)
• M18: 18,305,693 km (0.104 R)
• M19: 20,773,908 km (0.108 R)
• M20: 22,087,826 km (0.064 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 442.1

Radius: 4.3

Gravity: 23.91 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 11.98 AU - 19.8 AU

Year: 22366 Days

Day: 22 Hours

Environment

Temp: -185 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 70,843,429 km

• M1: 53,556 km (0.028 R)
• M2: 278,402 km (0.084 R)
• M3: 420,071 km (0.116 R)
• M4: 611,406 km (0.089 R)
• M5: 926,011 km (0.082 R)
• M6: 1,400,834 km (0.087 R)
• M7: 1,852,470 km (0.086 R)
• M8: 2,162,437 km (0.075 R)
• M9: 3,274,398 km (0.047 R)
• M10: 4,317,544 km (0.066 R)
• M11: 4,721,309 km (0.043 R)
• M12: 5,335,707 km (0.061 R)
• M13: 5,642,532 km (0.119 R)
• M14: 8,432,982 km (0.086 R)
• M15: 9,443,814 km (0.074 R)
• M16: 10,007,050 km (0.084 R)
• M17: 17,754,275 km (0.077 R)
• M18: 18,610,574 km (0.085 R)
• M19: 20,965,394 km (0.103 R)
• M20: 22,410,509 km (0.096 R)
• M21: 23,613,276 km (0.101 R)
• M22: 26,146,716 km (0.053 R)
• M23: 29,089,605 km (0.1 R)
• M24: 31,006,103 km (0.105 R)
• M25: 34,823,243 km (0.07 R)
• M26: 35,354,764 km (0.112 R)
• M27: 39,803,206 km (0.1 R)
• M28: 43,989,254 km (0.05 R)
• M29: 46,188,343 km (0.04 R)
• M30: 47,477,278 km (0.045 R)
• M31: 55,176,781 km (0.089 R)
• M32: 62,293,301 km (0.112 R)
• M33: 62,683,901 km (0.113 R)
• M34: 68,740,970 km (0.075 R)
• M35: 69,997,292 km (0.06 R)
• M36: 70,208,225 km (0.09 R)

Kuiper Belt

Range: 31.1 - 58.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 290 - 12,601 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit