🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.64

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.5 AU - 0.58 AU

Year: 146 Days

Day: 17.4 Hours

Environment

Temp: 213 °C

Axial Tilt: 10.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 82,094,024 km

• M1: 147,803 km (0.106 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.67

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1 AU - 1.28 AU

Year: 447 Days

Day: 39.9 Hours

Environment

Temp: 15 °C

Axial Tilt: 22.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 82,094,024 km

• M1: 720,463 km (0.037 R)

Asteroid Belt

Center: 2.79 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Terrestrial

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.55

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 3.88 AU - 4.98 AU

Year: 3423 Days

Day: 27.4 Hours

Environment

Temp: -124 °C

Axial Tilt: 3.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 82,094,024 km

• M1: 28,124 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.9

Radius: 13.2

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 4.49 AU - 5.19 AU

Year: 3909 Days

Day: 8.4 Hours

Environment

Temp: -136 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 82,094,024 km

• M1: 164,109 km (0.078 R)
• M2: 588,368 km (0.048 R)
• M3: 1,933,253 km (0.105 R)
• M4: 5,382,980 km (0.055 R)
• M5: 6,486,414 km (0.101 R)
• M6: 7,260,882 km (0.066 R)
• M7: 7,930,782 km (0.096 R)
• M8: 8,781,694 km (0.032 R)
• M9: 11,574,537 km (0.079 R)
• M10: 13,547,134 km (0.081 R)
• M11: 15,839,572 km (0.099 R)
• M12: 17,976,877 km (0.097 R)
• M13: 18,730,252 km (0.026 R)
• M14: 21,566,179 km (0.044 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.6

Radius: 10.1

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 4.58 AU - 5.6 AU

Year: 4216 Days

Day: 13.7 Hours

Environment

Temp: -145 °C

Axial Tilt: 61.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 82,094,024 km

• M1: 125,662 km (0.112 R)
• M2: 446,250 km (0.105 R)
• M3: 829,371 km (0.099 R)
• M4: 1,307,485 km (0.09 R)
• M5: 1,767,648 km (0.089 R)
• M6: 2,280,470 km (0.077 R)
• M7: 3,550,406 km (0.032 R)
• M8: 4,893,646 km (0.113 R)
• M9: 5,531,232 km (0.1 R)
• M10: 6,223,271 km (0.097 R)
• M11: 7,748,571 km (0.107 R)
• M12: 10,015,577 km (0.065 R)
• M13: 11,400,854 km (0.099 R)
• M14: 14,737,933 km (0.113 R)
• M15: 15,763,726 km (0.1 R)
• M16: 17,578,498 km (0.073 R)
• M17: 18,731,897 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 11.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976

Radius: 14.3

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 10.91 AU - 11.33 AU

Year: 13612 Days

Day: 9.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 82,094,024 km

• M1: 190,737 km (0.085 R)
• M2: 891,005 km (0.116 R)
• M3: 1,566,888 km (0.099 R)
• M4: 2,706,525 km (0.041 R)
• M5: 3,524,526 km (0.073 R)
• M6: 4,249,776 km (0.119 R)
• M7: 4,764,842 km (0.068 R)
• M8: 5,214,084 km (0.083 R)
• M9: 5,960,877 km (0.074 R)
• M10: 6,906,934 km (0.119 R)
• M11: 7,576,384 km (0.063 R)
• M12: 8,890,601 km (0.086 R)
• M13: 9,361,087 km (0.099 R)
• M14: 10,814,430 km (0.111 R)
• M15: 13,678,332 km (0.105 R)
• M16: 14,306,792 km (0.057 R)
• M17: 17,824,586 km (0.072 R)
• M18: 21,414,038 km (0.118 R)
• M19: 25,564,631 km (0.096 R)
• M20: 26,734,635 km (0.105 R)
• M21: 28,274,746 km (0.045 R)
• M22: 30,106,571 km (0.108 R)
• M23: 30,576,758 km (0.047 R)
• M24: 31,171,260 km (0.073 R)
• M25: 32,016,487 km (0.093 R)
• M26: 38,229,736 km (0.115 R)
• M27: 40,183,035 km (0.083 R)
• M28: 40,896,617 km (0.114 R)
• M29: 41,763,986 km (0.11 R)
• M30: 45,049,454 km (0.035 R)
• M31: 48,664,786 km (0.071 R)
• M32: 53,493,506 km (0.082 R)
• M33: 57,003,820 km (0.102 R)
• M34: 59,735,477 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 71

Radius: 8

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 11.92 AU - 17.62 AU

Year: 20837 Days

Day: 17.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 82,094,024 km

• M1: 99,483 km (0.105 R)
• M2: 1,266,496 km (0.074 R)
• M3: 2,813,637 km (0.114 R)
• M4: 3,618,922 km (0.076 R)
• M5: 4,409,397 km (0.113 R)
• M6: 4,789,376 km (0.092 R)
• M7: 5,132,404 km (0.079 R)
• M8: 6,991,307 km (0.116 R)
• M9: 10,535,879 km (0.09 R)
• M10: 12,397,325 km (0.064 R)
• M11: 14,526,851 km (0.103 R)
• M12: 14,824,102 km (0.076 R)
• M13: 15,802,621 km (0.089 R)
• M14: 22,438,334 km (0.113 R)
• M15: 23,400,249 km (0.055 R)
• M16: 32,510,160 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 432.1

Radius: 5.1

Gravity: 16.61 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 13.56 AU - 22.6 AU

Year: 28221 Days

Day: 15.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 82,094,024 km

• M1: 64,028 km (0.062 R)
• M2: 700,118 km (0.106 R)
• M3: 1,423,573 km (0.093 R)
• M4: 2,603,003 km (0.079 R)
• M5: 3,287,563 km (0.027 R)
• M6: 4,052,307 km (0.049 R)
• M7: 5,352,911 km (0.088 R)
• M8: 5,512,682 km (0.051 R)
• M9: 8,258,102 km (0.105 R)
• M10: 11,009,057 km (0.118 R)
• M11: 11,333,385 km (0.09 R)
• M12: 14,315,469 km (0.115 R)
• M13: 15,095,622 km (0.092 R)
• M14: 15,739,790 km (0.113 R)
• M15: 17,169,048 km (0.065 R)
• M16: 17,959,823 km (0.097 R)
• M17: 18,500,320 km (0.115 R)
• M18: 20,090,396 km (0.118 R)
• M19: 22,591,074 km (0.093 R)
• M20: 25,516,610 km (0.071 R)
• M21: 34,119,385 km (0.116 R)
• M22: 35,789,346 km (0.101 R)
• M23: 40,507,663 km (0.107 R)
• M24: 40,970,219 km (0.094 R)
• M25: 44,144,088 km (0.119 R)
• M26: 49,732,615 km (0.113 R)
• M27: 53,523,874 km (0.11 R)
• M28: 60,463,719 km (0.106 R)
• M29: 60,664,629 km (0.092 R)
• M30: 67,979,516 km (0.093 R)
• M31: 71,062,878 km (0.064 R)
• M32: 72,412,251 km (0.108 R)
• M33: 76,328,424 km (0.119 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 483 - 19,783 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit