🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.17

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.53 AU - 0.77 AU

Year: 241 Days

Day: 30.8 Hours

Environment

Temp: -36 °C

Axial Tilt: 4.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.62

Radius: 1.21

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.75 AU - 0.89 AU

Year: 342 Days

Day: 37.5 Hours

Environment

Temp: -58 °C

Axial Tilt: 36.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.24

Radius: 0.57

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.74 AU - 1.08 AU

Year: 399 Days

Day: 19.1 Hours

Environment

Temp: -71 °C

Axial Tilt: 29.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 41,407,598 km

• M1: 157,975 km (0.07 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.39

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.78 AU - 1.26 AU

Year: 474 Days

Day: 35.5 Hours

Environment

Temp: -88 °C

Axial Tilt: 13.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.87

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.82 AU - 1.34 AU

Year: 516 Days

Day: 38.2 Hours

Environment

Temp: -85 °C

Axial Tilt: 13 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.9

Radius: 0.96

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.13 AU - 1.88 AU

Year: 845 Days

Day: 42.5 Hours

Environment

Temp: -104 °C

Axial Tilt: 33.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 41,407,598 km

• M1: 494,720 km (0.111 R)

Asteroid Belt

Center: 6.06 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 10.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 174.6

Radius: 7.1

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 9.58 AU - 11.64 AU

Year: 15904 Days

Day: 15.1 Hours

Environment

Temp: -204 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (89)

Outer Limit: 41,407,598 km

• M1: 92,003 km (0.029 R)
• M2: 271,670 km (0.113 R)
• M3: 456,722 km (0.094 R)
• M4: 522,845 km (0.119 R)
• M5: 741,706 km (0.091 R)
• M6: 853,605 km (0.096 R)
• M7: 1,040,902 km (0.099 R)
• M8: 1,185,414 km (0.116 R)
• M9: 1,279,062 km (0.034 R)
• M10: 1,637,049 km (0.087 R)
• M11: 1,827,488 km (0.096 R)
• M12: 2,047,396 km (0.051 R)
• M13: 2,536,881 km (0.093 R)
• M14: 2,908,183 km (0.038 R)
• M15: 2,984,478 km (0.072 R)
• M16: 3,323,018 km (0.093 R)
• M17: 3,673,675 km (0.05 R)
• M18: 3,756,253 km (0.084 R)
• M19: 3,811,754 km (0.111 R)
• M20: 4,322,930 km (0.064 R)
• M21: 4,616,291 km (0.099 R)
• M22: 4,765,440 km (0.075 R)
• M23: 4,855,648 km (0.045 R)
• M24: 5,949,807 km (0.108 R)
• M25: 6,112,120 km (0.112 R)
• M26: 6,177,494 km (0.102 R)
• M27: 6,341,903 km (0.113 R)
• M28: 6,441,236 km (0.073 R)
• M29: 6,742,376 km (0.029 R)
• M30: 6,979,788 km (0.032 R)
• M31: 7,048,154 km (0.097 R)
• M32: 8,064,073 km (0.105 R)
• M33: 8,243,890 km (0.032 R)
• M34: 8,570,761 km (0.09 R)
• M35: 8,643,915 km (0.095 R)
• M36: 9,237,369 km (0.075 R)
• M37: 9,920,433 km (0.083 R)
• M38: 10,935,754 km (0.062 R)
• M39: 11,094,926 km (0.069 R)
• M40: 11,496,148 km (0.053 R)
• M41: 11,698,404 km (0.089 R)
• M42: 11,983,837 km (0.08 R)
• M43: 12,106,806 km (0.11 R)
• M44: 12,979,410 km (0.112 R)
• M45: 13,105,671 km (0.036 R)
• M46: 13,274,717 km (0.094 R)
• M47: 13,359,539 km (0.061 R)
• M48: 13,444,510 km (0.086 R)
• M49: 13,958,229 km (0.037 R)
• M50: 14,916,553 km (0.044 R)
• M51: 15,181,641 km (0.106 R)
• M52: 15,941,000 km (0.088 R)
• M53: 17,776,117 km (0.109 R)
• M54: 18,292,528 km (0.111 R)
• M55: 19,291,842 km (0.103 R)
• M56: 19,628,886 km (0.076 R)
• M57: 19,919,256 km (0.036 R)
• M58: 19,967,875 km (0.045 R)
• M59: 20,016,345 km (0.117 R)
• M60: 20,996,360 km (0.119 R)
• M61: 21,641,726 km (0.078 R)
• M62: 21,691,542 km (0.109 R)
• M63: 24,391,185 km (0.071 R)
• M64: 24,651,336 km (0.082 R)
• M65: 26,765,153 km (0.083 R)
• M66: 27,410,519 km (0.087 R)
• M67: 28,333,538 km (0.095 R)
• M68: 29,046,222 km (0.068 R)
• M69: 29,156,475 km (0.117 R)
• M70: 29,211,677 km (0.111 R)
• M71: 29,321,931 km (0.073 R)
• M72: 29,820,391 km (0.047 R)
• M73: 30,938,186 km (0.101 R)
• M74: 31,276,128 km (0.117 R)
• M75: 31,558,718 km (0.096 R)
• M76: 31,671,964 km (0.061 R)
• M77: 32,183,289 km (0.1 R)
• M78: 32,697,457 km (0.038 R)
• M79: 33,502,593 km (0.085 R)
• M80: 33,849,660 km (0.07 R)
• M81: 34,081,686 km (0.11 R)
• M82: 34,489,041 km (0.054 R)
• M83: 34,722,563 km (0.041 R)
• M84: 36,966,681 km (0.107 R)
• M85: 37,086,210 km (0.047 R)
• M86: 38,287,331 km (0.104 R)
• M87: 40,051,539 km (0.085 R)
• M88: 40,789,355 km (0.097 R)
• M89: 41,283,776 km (0.112 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 431 - 14,353 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit