🌌 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: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.69

Radius: 1.49

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.46 AU - 0.6 AU

Year: 144 Days

Day: 26 Hours

Environment

Temp: 175 °C

Axial Tilt: 10.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.67

Radius: 1.23

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.51 AU - 0.57 AU

Year: 148 Days

Day: 31.5 Hours

Environment

Temp: 226 °C

Axial Tilt: 1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.4

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.51 AU - 0.63 AU

Year: 160 Days

Day: 15.1 Hours

Environment

Temp: 163 °C

Axial Tilt: 20.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.7 AU - 1.02 AU

Year: 297 Days

Day: 27.8 Hours

Environment

Temp: 164 °C

Axial Tilt: 38.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 87,737,754 km

• M1: 32,014 km (0.05 R)
• M2: 176,825 km (0.078 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.55

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.33 AU - 1.49 AU

Year: 624 Days

Day: 25.9 Hours

Environment

Temp: -36 °C

Axial Tilt: 48.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 87,737,754 km

• M1: 175,927 km (0.098 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.32

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.77 AU - 2.75 AU

Year: 1267 Days

Day: 26.9 Hours

Environment

Temp: -76 °C

Axial Tilt: 33.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 5.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885.1

Radius: 10.1

Gravity: 8.68 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 4.36 AU - 5.66 AU

Year: 4180 Days

Day: 10.4 Hours

Environment

Temp: -135 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 87,737,754 km

• M1: 125,662 km (0.11 R)
• M2: 798,404 km (0.073 R)
• M3: 1,382,434 km (0.107 R)
• M4: 2,187,869 km (0.093 R)
• M5: 2,809,448 km (0.061 R)
• M6: 3,162,349 km (0.055 R)
• M7: 3,650,487 km (0.099 R)
• M8: 4,118,429 km (0.1 R)
• M9: 4,753,024 km (0.071 R)
• M10: 5,679,633 km (0.109 R)
• M11: 6,340,556 km (0.109 R)
• M12: 6,689,867 km (0.066 R)
• M13: 7,960,551 km (0.069 R)
• M14: 9,548,982 km (0.071 R)
• M15: 10,352,621 km (0.034 R)
• M16: 10,704,176 km (0.088 R)
• M17: 11,292,694 km (0.105 R)
• M18: 12,683,057 km (0.09 R)
• M19: 14,184,272 km (0.107 R)
• M20: 14,894,413 km (0.081 R)
• M21: 15,974,659 km (0.101 R)
• M22: 16,444,696 km (0.119 R)
• M23: 16,863,719 km (0.093 R)
• M24: 20,202,295 km (0.086 R)
• M25: 23,276,830 km (0.073 R)
• M26: 24,964,593 km (0.066 R)
• M27: 25,918,878 km (0.093 R)
• M28: 29,014,208 km (0.043 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 759

Radius: 7.9

Gravity: 12.16 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 12.56 AU - 15.42 AU

Year: 19507 Days

Day: 24.7 Hours

Environment

Temp: -182 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 87,737,754 km

• M1: 99,333 km (0.057 R)
• M2: 349,012 km (0.084 R)
• M3: 856,149 km (0.115 R)
• M4: 1,395,748 km (0.07 R)
• M5: 1,706,613 km (0.082 R)
• M6: 2,004,013 km (0.034 R)
• M7: 2,492,600 km (0.117 R)
• M8: 3,219,047 km (0.101 R)
• M9: 3,766,874 km (0.12 R)
• M10: 4,511,573 km (0.111 R)
• M11: 5,506,698 km (0.078 R)
• M12: 6,333,226 km (0.11 R)
• M13: 6,686,127 km (0.065 R)
• M14: 8,975,872 km (0.084 R)
• M15: 10,600,356 km (0.116 R)
• M16: 11,940,902 km (0.094 R)
• M17: 13,035,510 km (0.092 R)
• M18: 13,899,288 km (0.079 R)
• M19: 14,647,876 km (0.119 R)
• M20: 15,032,043 km (0.049 R)
• M21: 19,528,356 km (0.077 R)
• M22: 20,182,249 km (0.059 R)
• M23: 34,857,650 km (0.103 R)
• M24: 35,130,666 km (0.05 R)
• M25: 37,081,722 km (0.089 R)
• M26: 41,198,206 km (0.08 R)
• M27: 41,963,998 km (0.071 R)
• M28: 42,583,483 km (0.058 R)
• M29: 44,478,439 km (0.117 R)
• M30: 47,425,367 km (0.058 R)
• M31: 60,319,507 km (0.071 R)
• M32: 63,110,854 km (0.063 R)
• M33: 63,516,414 km (0.086 R)
• M34: 65,156,605 km (0.105 R)
• M35: 69,379,752 km (0.058 R)
• M36: 71,338,437 km (0.046 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 867.4

Radius: 6.7

Gravity: 19.32 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 12.34 AU - 17.64 AU

Year: 21635 Days

Day: 17.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 87,737,754 km

• M1: 106,065 km (0.109 R)
• M2: 412,292 km (0.118 R)
• M3: 668,403 km (0.043 R)
• M4: 956,678 km (0.116 R)
• M5: 2,399,849 km (0.073 R)
• M6: 3,058,229 km (0.108 R)
• M7: 4,437,522 km (0.06 R)
• M8: 4,763,944 km (0.108 R)
• M9: 5,424,269 km (0.12 R)
• M10: 6,232,696 km (0.118 R)
• M11: 6,735,943 km (0.072 R)
• M12: 7,070,145 km (0.092 R)
• M13: 8,300,587 km (0.114 R)
• M14: 9,138,485 km (0.037 R)
• M15: 9,429,902 km (0.118 R)
• M16: 18,523,059 km (0.119 R)
• M17: 22,588,979 km (0.092 R)
• M18: 24,660,162 km (0.087 R)
• M19: 32,295,338 km (0.114 R)
• M20: 40,423,289 km (0.058 R)
• M21: 42,005,137 km (0.06 R)
• M22: 44,788,107 km (0.117 R)
• M23: 45,798,939 km (0.066 R)
• M24: 61,383,746 km (0.096 R)
• M25: 72,986,557 km (0.115 R)
• M26: 83,156,520 km (0.117 R)
• M27: 86,226,717 km (0.095 R)

Planet 10 - Ice Giant

Semi-Major Axis: 16.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 703.2

Radius: 6.4

Gravity: 17.17 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 15.67 AU - 16.85 AU

Year: 24442 Days

Day: 23.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 87,737,754 km

• M1: 79,586 km (0.069 R)
• M2: 418,874 km (0.117 R)
• M3: 634,594 km (0.114 R)
• M4: 879,785 km (0.091 R)
• M5: 2,024,508 km (0.075 R)
• M6: 2,239,630 km (0.103 R)
• M7: 2,871,980 km (0.089 R)
• M8: 3,742,191 km (0.096 R)
• M9: 5,689,656 km (0.094 R)
• M10: 7,908,791 km (0.1 R)
• M11: 8,120,771 km (0.05 R)
• M12: 8,723,650 km (0.094 R)
• M13: 10,392,414 km (0.115 R)
• M14: 11,503,478 km (0.07 R)
• M15: 13,578,101 km (0.113 R)
• M16: 15,391,377 km (0.093 R)
• M17: 15,639,261 km (0.085 R)
• M18: 17,360,235 km (0.071 R)
• M19: 27,038,618 km (0.09 R)
• M20: 29,379,825 km (0.086 R)
• M21: 47,010,682 km (0.054 R)
• M22: 50,564,529 km (0.102 R)
• M23: 54,293,555 km (0.056 R)
• M24: 59,409,802 km (0.079 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 400 - 18,574 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit