🌌 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: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.93

Radius: 0.97

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.58 AU - 0.8 AU

Year: 201 Days

Day: 45.1 Hours

Environment

Temp: 145 °C

Axial Tilt: 9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 111,067,308 km

• M1: 104,419 km (0.107 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.03

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.65 AU - 1.07 AU

Year: 279 Days

Day: 25.6 Hours

Environment

Temp: 177 °C

Axial Tilt: 12.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 111,067,308 km

• M1: 39,045 km (0.094 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.28 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.84

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.07 AU - 1.49 AU

Year: 507 Days

Day: 36.9 Hours

Environment

Temp: 8 °C

Axial Tilt: 31.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 111,067,308 km

• M1: 51,611 km (0.079 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.37

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 3.41 AU - 5.17 AU

Year: 3109 Days

Day: 38.2 Hours

Environment

Temp: -109 °C

Axial Tilt: 99.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.63

Radius: 0.83

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 4.04 AU - 5.5 AU

Year: 3645 Days

Day: 18.1 Hours

Environment

Temp: -131 °C

Axial Tilt: 8.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 111,067,308 km

• M1: 403,316 km (0.057 R)

Asteroid Belt

Center: 7.97 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 11.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.6

Radius: 9.4

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 9.5 AU - 12.82 AU

Year: 13043 Days

Day: 14.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 111,067,308 km

• M1: 117,135 km (0.036 R)
• M2: 409,898 km (0.063 R)
• M3: 834,008 km (0.095 R)
• M4: 1,255,725 km (0.073 R)
• M5: 1,741,918 km (0.11 R)
• M6: 2,405,235 km (0.083 R)
• M7: 3,049,852 km (0.081 R)
• M8: 3,882,364 km (0.113 R)
• M9: 4,393,989 km (0.083 R)
• M10: 5,421,277 km (0.098 R)
• M11: 5,819,806 km (0.074 R)
• M12: 6,166,723 km (0.041 R)
• M13: 6,940,593 km (0.059 R)
• M14: 8,860,233 km (0.11 R)
• M15: 9,603,884 km (0.071 R)
• M16: 9,942,125 km (0.085 R)
• M17: 15,030,846 km (0.066 R)
• M18: 15,421,596 km (0.064 R)
• M19: 16,087,905 km (0.065 R)
• M20: 17,477,968 km (0.07 R)
• M21: 18,946,421 km (0.083 R)
• M22: 19,249,656 km (0.112 R)
• M23: 20,815,048 km (0.114 R)
• M24: 25,554,907 km (0.111 R)
• M25: 27,929,324 km (0.116 R)
• M26: 31,389,373 km (0.075 R)
• M27: 33,442,454 km (0.114 R)
• M28: 37,933,981 km (0.082 R)
• M29: 38,780,555 km (0.027 R)
• M30: 40,011,746 km (0.086 R)
• M31: 41,015,398 km (0.085 R)
• M32: 41,523,432 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 12.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511

Radius: 12.5

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 11.02 AU - 14.42 AU

Year: 15871 Days

Day: 14.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 111,067,308 km

• M1: 155,432 km (0.096 R)
• M2: 1,316,611 km (0.115 R)
• M3: 2,556,927 km (0.051 R)
• M4: 3,119,564 km (0.093 R)
• M5: 3,601,270 km (0.116 R)
• M6: 5,785,997 km (0.079 R)
• M7: 6,761,525 km (0.083 R)
• M8: 8,643,316 km (0.113 R)
• M9: 10,460,332 km (0.102 R)
• M10: 11,547,160 km (0.066 R)
• M11: 14,283,455 km (0.118 R)
• M12: 18,379,594 km (0.11 R)
• M13: 19,034,235 km (0.085 R)
• M14: 25,443,755 km (0.085 R)
• M15: 26,360,192 km (0.081 R)
• M16: 32,682,647 km (0.084 R)
• M17: 33,522,788 km (0.027 R)
• M18: 37,417,569 km (0.06 R)
• M19: 39,541,260 km (0.112 R)
• M20: 43,018,663 km (0.113 R)
• M21: 44,905,242 km (0.115 R)
• M22: 53,831,148 km (0.036 R)
• M23: 56,705,970 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 933.3

Radius: 4.1

Gravity: 55.52 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 14.66 AU - 24.43 AU

Year: 30218 Days

Day: 25 Hours

Environment

Temp: -199 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 111,067,308 km

• M1: 51,462 km (0.057 R)
• M2: 549,623 km (0.111 R)
• M3: 1,785,600 km (0.104 R)
• M4: 4,004,436 km (0.065 R)
• M5: 6,841,111 km (0.054 R)
• M6: 8,633,592 km (0.117 R)
• M7: 9,189,049 km (0.084 R)
• M8: 9,443,515 km (0.067 R)
• M9: 11,724,733 km (0.059 R)
• M10: 12,024,078 km (0.059 R)
• M11: 13,434,487 km (0.09 R)
• M12: 16,207,433 km (0.074 R)
• M13: 16,485,386 km (0.11 R)
• M14: 16,955,871 km (0.074 R)
• M15: 20,074,089 km (0.081 R)
• M16: 20,502,388 km (0.061 R)
• M17: 27,154,557 km (0.054 R)
• M18: 32,112,978 km (0.067 R)
• M19: 32,994,110 km (0.059 R)
• M20: 34,345,726 km (0.071 R)
• M21: 42,884,174 km (0.106 R)
• M22: 45,955,568 km (0.113 R)
• M23: 47,073,663 km (0.112 R)
• M24: 51,129,560 km (0.112 R)
• M25: 53,344,207 km (0.098 R)
• M26: 54,994,421 km (0.047 R)
• M27: 57,963,789 km (0.105 R)
• M28: 61,936,062 km (0.056 R)
• M29: 70,910,139 km (0.084 R)
• M30: 73,914,363 km (0.118 R)
• M31: 85,375,355 km (0.069 R)
• M32: 87,630,543 km (0.092 R)
• M33: 98,578,414 km (0.085 R)
• M34: 101,059,495 km (0.062 R)
• M35: 105,823,290 km (0.045 R)
• M36: 110,734,588 km (0.092 R)

Kuiper Belt

Range: 31.4 - 54.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 163 - 10,595 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit