🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.01

Radius: 1

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.58 AU - 0.66 AU

Year: 320 Days

Day: 16.2 Hours

Environment

Temp: -139 °C

Axial Tilt: 16.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997.2

Radius: 10.3

Gravity: 9.4 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.7 AU - 1.14 AU

Year: 579 Days

Day: 14.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 71,231,321 km

• M1: 128,205 km (0.071 R)
• M2: 514,018 km (0.029 R)
• M3: 958,773 km (0.033 R)
• M4: 1,299,258 km (0.06 R)
• M5: 1,697,337 km (0.098 R)
• M6: 2,072,230 km (0.068 R)
• M7: 2,610,782 km (0.102 R)
• M8: 3,228,023 km (0.031 R)
• M9: 3,626,552 km (0.113 R)
• M10: 4,133,240 km (0.113 R)
• M11: 4,719,663 km (0.052 R)
• M12: 5,076,604 km (0.081 R)
• M13: 6,379,003 km (0.082 R)
• M14: 7,318,328 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.1

Radius: 9.7

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.48 AU - 1.72 AU

Year: 1328 Days

Day: 7.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 71,231,321 km

• M1: 120,725 km (0.112 R)
• M2: 887,415 km (0.115 R)
• M3: 1,370,616 km (0.092 R)
• M4: 2,411,966 km (0.065 R)
• M5: 2,944,086 km (0.076 R)
• M6: 3,352,638 km (0.101 R)
• M7: 3,761,190 km (0.079 R)
• M8: 5,190,448 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.8

Radius: 9.1

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 3.84 AU - 4.58 AU

Year: 5667 Days

Day: 12.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 71,231,321 km

• M1: 130,300 km (0.113 R)
• M2: 537,056 km (0.041 R)
• M3: 870,809 km (0.076 R)
• M4: 1,585,737 km (0.12 R)
• M5: 2,945,283 km (0.085 R)
• M6: 7,918,963 km (0.033 R)
• M7: 8,476,963 km (0.1 R)
• M8: 8,781,096 km (0.104 R)
• M9: 9,346,875 km (0.102 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 667.3

Radius: 3.7

Gravity: 48.74 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 5.96 AU - 5.98 AU

Year: 9569 Days

Day: 23.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 71,231,321 km

• M1: 46,076 km (0.057 R)
• M2: 201,658 km (0.094 R)
• M3: 621,579 km (0.079 R)
• M4: 1,101,938 km (0.106 R)
• M5: 1,405,921 km (0.12 R)
• M6: 1,613,862 km (0.077 R)
• M7: 2,822,613 km (0.116 R)
• M8: 3,018,287 km (0.077 R)
• M9: 3,199,749 km (0.057 R)
• M10: 3,710,925 km (0.119 R)
• M11: 5,704,915 km (0.104 R)
• M12: 7,104,552 km (0.08 R)
• M13: 11,408,184 km (0.117 R)
• M14: 14,797,174 km (0.096 R)
• M15: 19,029,448 km (0.111 R)
• M16: 20,200,948 km (0.12 R)
• M17: 22,429,358 km (0.087 R)
• M18: 28,155,067 km (0.099 R)
• M19: 29,879,632 km (0.073 R)
• M20: 32,541,875 km (0.06 R)
• M21: 43,165,568 km (0.082 R)
• M22: 44,501,776 km (0.11 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 589.5

Radius: 7.7

Gravity: 9.94 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 7.24 AU - 8.44 AU

Year: 14401 Days

Day: 22.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 71,231,321 km

• M1: 95,743 km (0.106 R)
• M2: 337,942 km (0.082 R)
• M3: 1,163,722 km (0.111 R)
• M4: 1,875,658 km (0.098 R)
• M5: 3,486,229 km (0.098 R)
• M6: 4,489,133 km (0.094 R)
• M7: 5,856,906 km (0.087 R)
• M8: 9,185,160 km (0.081 R)
• M9: 11,246,319 km (0.119 R)
• M10: 12,384,609 km (0.101 R)
• M11: 13,271,126 km (0.064 R)
• M12: 15,744,129 km (0.042 R)
• M13: 17,632,054 km (0.072 R)
• M14: 17,947,556 km (0.102 R)
• M15: 18,589,929 km (0.038 R)
• M16: 20,176,564 km (0.107 R)
• M17: 25,375,838 km (0.049 R)
• M18: 26,184,714 km (0.118 R)
• M19: 26,492,437 km (0.086 R)
• M20: 28,823,471 km (0.059 R)
• M21: 29,482,150 km (0.117 R)
• M22: 29,926,755 km (0.108 R)
• M23: 30,715,734 km (0.113 R)
• M24: 32,571,047 km (0.108 R)
• M25: 33,285,676 km (0.049 R)
• M26: 34,993,635 km (0.103 R)
• M27: 39,517,624 km (0.119 R)
• M28: 44,271,395 km (0.082 R)
• M29: 46,785,388 km (0.108 R)
• M30: 47,542,503 km (0.088 R)
• M31: 50,177,819 km (0.068 R)
• M32: 50,494,068 km (0.095 R)
• M33: 52,095,663 km (0.107 R)
• M34: 56,076,911 km (0.095 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 975.7

Radius: 3.7

Gravity: 71.27 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 8.09 AU - 8.15 AU

Year: 15179 Days

Day: 20.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 71,231,321 km

• M1: 52,060 km (0.098 R)
• M2: 209,736 km (0.108 R)
• M3: 440,715 km (0.032 R)
• M4: 624,122 km (0.073 R)
• M5: 793,766 km (0.06 R)
• M6: 1,987,258 km (0.096 R)
• M7: 4,567,821 km (0.069 R)
• M8: 5,133,900 km (0.103 R)
• M9: 5,357,698 km (0.05 R)
• M10: 7,918,514 km (0.067 R)
• M11: 8,679,968 km (0.11 R)
• M12: 9,268,336 km (0.104 R)
• M13: 10,055,221 km (0.073 R)
• M14: 13,298,503 km (0.103 R)
• M15: 16,766,331 km (0.074 R)
• M16: 17,930,651 km (0.04 R)
• M17: 18,359,099 km (0.086 R)
• M18: 18,882,243 km (0.058 R)
• M19: 27,173,107 km (0.101 R)
• M20: 34,087,670 km (0.098 R)
• M21: 41,191,774 km (0.042 R)
• M22: 42,843,484 km (0.029 R)
• M23: 47,571,225 km (0.071 R)
• M24: 49,054,638 km (0.058 R)
• M25: 57,860,268 km (0.109 R)
• M26: 59,929,356 km (0.115 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: 162 - 11,439 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit