🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.43

Radius: 0.71

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.63 AU - 0.93 AU

Year: 249 Days

Day: 12.5 Hours

Environment

Temp: 129 °C

Axial Tilt: 34.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.54

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.93 AU - 1.15 AU

Year: 384 Days

Day: 21.9 Hours

Environment

Temp: 27 °C

Axial Tilt: 13.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 86,713,964 km

• M1: 102,774 km (0.108 R)
• M2: 144,512 km (0.118 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.56

Radius: 1.46

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.77 AU - 2.79 AU

Year: 1245 Days

Day: 30.9 Hours

Environment

Temp: -86 °C

Axial Tilt: 26.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 86,713,964 km

• M1: 90,956 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 8.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.2

Radius: 14

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 7.34 AU - 10.64 AU

Year: 9748 Days

Day: 14.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 163.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 86,713,964 km

• M1: 174,132 km (0.083 R)
• M2: 654,191 km (0.068 R)
• M3: 1,109,119 km (0.069 R)
• M4: 1,600,847 km (0.074 R)
• M5: 2,731,657 km (0.115 R)
• M6: 5,837,608 km (0.097 R)
• M7: 8,380,174 km (0.051 R)
• M8: 9,483,159 km (0.108 R)
• M9: 13,436,133 km (0.105 R)
• M10: 23,336,370 km (0.084 R)
• M11: 24,772,360 km (0.083 R)
• M12: 25,232,972 km (0.073 R)
• M13: 31,646,083 km (0.057 R)
• M14: 32,847,952 km (0.083 R)
• M15: 36,994,805 km (0.065 R)
• M16: 37,476,211 km (0.086 R)
• M17: 40,452,311 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636.7

Radius: 11.8

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 8.68 AU - 11.26 AU

Year: 11385 Days

Day: 13.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 86,713,964 km

• M1: 146,756 km (0.102 R)
• M2: 541,544 km (0.07 R)
• M3: 1,706,313 km (0.085 R)
• M4: 2,217,040 km (0.113 R)
• M5: 2,871,830 km (0.066 R)
• M6: 3,304,916 km (0.091 R)
• M7: 5,701,175 km (0.089 R)
• M8: 6,503,917 km (0.051 R)
• M9: 9,466,404 km (0.068 R)
• M10: 10,751,898 km (0.108 R)
• M11: 14,569,486 km (0.068 R)
• M12: 15,442,689 km (0.075 R)
• M13: 15,857,374 km (0.119 R)
• M14: 18,195,739 km (0.036 R)
• M15: 20,012,455 km (0.114 R)
• M16: 20,505,679 km (0.055 R)
• M17: 21,516,363 km (0.111 R)
• M18: 23,004,712 km (0.07 R)
• M19: 24,374,131 km (0.104 R)
• M20: 28,085,355 km (0.113 R)
• M21: 30,397,839 km (0.087 R)
• M22: 32,607,698 km (0.053 R)
• M23: 34,922,725 km (0.1 R)
• M24: 35,638,102 km (0.091 R)
• M25: 37,345,313 km (0.059 R)
• M26: 47,139,336 km (0.114 R)
• M27: 47,574,816 km (0.099 R)
• M28: 48,749,458 km (0.09 R)
• M29: 50,851,458 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 15.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 174.2

Radius: 6.7

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 14.85 AU - 16.21 AU

Year: 22133 Days

Day: 24.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 86,713,964 km

• M1: 87,964 km (0.112 R)
• M2: 318,793 km (0.096 R)
• M3: 546,631 km (0.115 R)
• M4: 859,290 km (0.046 R)
• M5: 1,602,492 km (0.064 R)
• M6: 2,036,625 km (0.109 R)
• M7: 2,291,091 km (0.09 R)
• M8: 2,566,800 km (0.116 R)
• M9: 2,777,135 km (0.091 R)
• M10: 3,185,088 km (0.114 R)
• M11: 4,620,929 km (0.106 R)
• M12: 5,567,135 km (0.058 R)
• M13: 10,078,409 km (0.107 R)
• M14: 11,039,874 km (0.08 R)
• M15: 12,296,347 km (0.103 R)
• M16: 41,502,189 km (0.072 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 662.2

Radius: 7.1

Gravity: 13.14 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 14.17 AU - 19.29 AU

Year: 24748 Days

Day: 18.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 86,713,964 km

• M1: 88,562 km (0.103 R)
• M2: 331,060 km (0.092 R)
• M3: 654,790 km (0.109 R)
• M4: 913,744 km (0.071 R)
• M5: 1,170,005 km (0.098 R)
• M6: 1,737,130 km (0.032 R)
• M7: 2,010,296 km (0.117 R)
• M8: 2,357,662 km (0.073 R)
• M9: 2,744,672 km (0.081 R)
• M10: 3,034,593 km (0.071 R)
• M11: 3,553,398 km (0.09 R)
• M12: 3,802,329 km (0.113 R)
• M13: 4,804,186 km (0.111 R)
• M14: 5,187,456 km (0.118 R)
• M15: 5,928,564 km (0.068 R)
• M16: 6,414,906 km (0.115 R)
• M17: 7,317,580 km (0.092 R)
• M18: 7,773,405 km (0.114 R)
• M19: 8,087,710 km (0.111 R)
• M20: 11,377,666 km (0.065 R)
• M21: 13,728,746 km (0.094 R)
• M22: 20,140,062 km (0.045 R)
• M23: 23,987,869 km (0.112 R)
• M24: 35,048,986 km (0.051 R)
• M25: 41,992,272 km (0.073 R)
• M26: 42,798,156 km (0.081 R)
• M27: 44,774,044 km (0.118 R)
• M28: 52,912,617 km (0.12 R)
• M29: 63,449,094 km (0.098 R)
• M30: 67,322,931 km (0.083 R)
• M31: 68,426,365 km (0.115 R)
• M32: 76,251,082 km (0.071 R)
• M33: 77,209,107 km (0.056 R)
• M34: 79,884,964 km (0.11 R)
• M35: 81,869,529 km (0.087 R)
• M36: 86,195,301 km (0.106 R)

Kuiper Belt

Range: 30.3 - 53.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 297 - 11,588 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit