🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.3

Radius: 1.4

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.9 AU - 1.08 AU

Year: 348 Days

Day: 36.7 Hours

Environment

Temp: 74 °C

Axial Tilt: 6.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 70,380,189 km

• M1: 707,299 km (0.092 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 1.19 AU - 1.47 AU

Year: 542 Days

Day: 25.2 Hours

Environment

Temp: 7 °C

Axial Tilt: 11.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 70,380,189 km

• M1: 341,532 km (0.028 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.27 AU - 1.47 AU

Year: 566 Days

Day: 26 Hours

Environment

Temp: 11 °C

Axial Tilt: 1.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.37

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 1.51 AU - 1.73 AU

Year: 728 Days

Day: 17.5 Hours

Environment

Temp: -40 °C

Axial Tilt: 34.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.4

Radius: 0.69

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.87 AU - 1.97 AU

Year: 939 Days

Day: 12.9 Hours

Environment

Temp: -41 °C

Axial Tilt: 23.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.99

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 3.54 AU - 3.62 AU

Year: 2392 Days

Day: 37.2 Hours

Environment

Temp: -104 °C

Axial Tilt: 13.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 8.1 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 12.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.3

Radius: 12.2

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 11.7 AU - 13.54 AU

Year: 15830 Days

Day: 8.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (88)

Outer Limit: 70,380,189 km

• M1: 201,957 km (0.042 R)
• M2: 611,556 km (0.086 R)
• M3: 756,217 km (0.087 R)
• M4: 960,568 km (0.105 R)
• M5: 1,082,341 km (0.091 R)
• M6: 1,209,798 km (0.065 R)
• M7: 1,342,491 km (0.106 R)
• M8: 1,565,392 km (0.078 R)
• M9: 1,652,308 km (0.084 R)
• M10: 2,473,152 km (0.101 R)
• M11: 3,144,398 km (0.085 R)
• M12: 3,751,915 km (0.068 R)
• M13: 3,830,453 km (0.109 R)
• M14: 4,109,902 km (0.077 R)
• M15: 4,313,505 km (0.108 R)
• M16: 4,395,933 km (0.071 R)
• M17: 4,562,286 km (0.095 R)
• M18: 5,030,827 km (0.088 R)
• M19: 5,117,743 km (0.115 R)
• M20: 5,425,765 km (0.063 R)
• M21: 7,299,927 km (0.096 R)
• M22: 7,497,546 km (0.041 R)
• M23: 7,696,960 km (0.045 R)
• M24: 8,050,310 km (0.108 R)
• M25: 8,203,349 km (0.054 R)
• M26: 8,357,285 km (0.1 R)
• M27: 8,668,299 km (0.084 R)
• M28: 11,346,998 km (0.072 R)
• M29: 12,804,830 km (0.064 R)
• M30: 14,013,281 km (0.091 R)
• M31: 16,928,345 km (0.095 R)
• M32: 17,387,910 km (0.098 R)
• M33: 19,267,308 km (0.089 R)
• M34: 20,161,604 km (0.077 R)
• M35: 20,648,844 km (0.045 R)
• M36: 21,422,265 km (0.12 R)
• M37: 22,205,111 km (0.084 R)
• M38: 22,852,720 km (0.067 R)
• M39: 26,258,316 km (0.102 R)
• M40: 27,325,846 km (0.095 R)
• M41: 28,485,379 km (0.109 R)
• M42: 28,641,111 km (0.102 R)
• M43: 29,267,327 km (0.103 R)
• M44: 29,818,895 km (0.082 R)
• M45: 30,135,593 km (0.116 R)
• M46: 30,932,352 km (0.104 R)
• M47: 32,302,668 km (0.077 R)
• M48: 32,709,425 km (0.061 R)
• M49: 33,445,895 km (0.103 R)
• M50: 33,775,010 km (0.103 R)
• M51: 34,602,436 km (0.102 R)
• M52: 35,604,293 km (0.091 R)
• M53: 35,940,290 km (0.047 R)
• M54: 36,024,514 km (0.116 R)
• M55: 36,192,961 km (0.072 R)
• M56: 37,892,841 km (0.117 R)
• M57: 39,098,301 km (0.111 R)
• M58: 39,966,866 km (0.03 R)
• M59: 40,666,386 km (0.118 R)
• M60: 42,432,987 km (0.117 R)
• M61: 43,325,488 km (0.111 R)
• M62: 43,504,856 km (0.048 R)
• M63: 44,676,058 km (0.113 R)
• M64: 46,957,575 km (0.08 R)
• M65: 47,788,142 km (0.051 R)
• M66: 49,745,032 km (0.074 R)
• M67: 51,537,962 km (0.093 R)
• M68: 51,632,957 km (0.105 R)
• M69: 51,918,240 km (0.075 R)
• M70: 53,256,094 km (0.097 R)
• M71: 54,799,046 km (0.106 R)
• M72: 55,478,670 km (0.05 R)
• M73: 56,063,448 km (0.109 R)
• M74: 56,454,496 km (0.078 R)
• M75: 59,415,637 km (0.112 R)
• M76: 60,814,826 km (0.084 R)
• M77: 61,015,586 km (0.097 R)
• M78: 61,820,722 km (0.119 R)
• M79: 63,035,157 km (0.09 R)
• M80: 64,257,521 km (0.109 R)
• M81: 64,359,846 km (0.078 R)
• M82: 64,769,146 km (0.031 R)
• M83: 65,282,117 km (0.09 R)
• M84: 65,590,588 km (0.117 R)
• M85: 65,796,435 km (0.091 R)
• M86: 66,415,471 km (0.101 R)
• M87: 69,854,127 km (0.117 R)
• M88: 70,169,629 km (0.041 R)

Kuiper Belt

Range: 31.1 - 51.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 384 - 18,709 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit