🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470.3

Radius: 13.4

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.6 AU - 0.92 AU

Year: 435 Days

Day: 13.7 Hours

Environment

Temp: -150 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 15,094,959 km

• M1: 166,652 km (0.12 R)
• M2: 659,278 km (0.094 R)
• M3: 1,384,528 km (0.087 R)
• M4: 1,814,772 km (0.086 R)
• M5: 2,680,794 km (0.067 R)
• M6: 3,123,454 km (0.068 R)
• M7: 3,722,294 km (0.111 R)
• M8: 4,491,826 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.9

Radius: 13.7

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.39 AU - 1.47 AU

Year: 1122 Days

Day: 10.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 15,094,959 km

• M1: 170,392 km (0.056 R)
• M2: 701,315 km (0.117 R)
• M3: 1,362,238 km (0.112 R)
• M4: 1,855,462 km (0.092 R)
• M5: 2,575,627 km (0.086 R)
• M6: 3,187,332 km (0.089 R)
• M7: 3,704,791 km (0.105 R)
• M8: 4,399,823 km (0.097 R)
• M9: 5,921,832 km (0.098 R)
• M10: 7,489,169 km (0.11 R)
• M11: 8,033,256 km (0.084 R)
• M12: 10,800,517 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 201.5

Radius: 14.3

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.28 AU - 1.8 AU

Year: 1254 Days

Day: 10.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 15,094,959 km

• M1: 183,407 km (0.081 R)
• M2: 723,904 km (0.111 R)
• M3: 1,455,587 km (0.069 R)
• M4: 1,958,685 km (0.106 R)
• M5: 2,776,237 km (0.105 R)
• M6: 3,315,986 km (0.119 R)
• M7: 3,797,991 km (0.113 R)
• M8: 4,529,973 km (0.069 R)
• M9: 5,319,102 km (0.068 R)
• M10: 5,831,624 km (0.059 R)
• M11: 6,600,707 km (0.12 R)
• M12: 7,085,404 km (0.07 R)
• M13: 7,593,738 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.1

Radius: 12.9

Gravity: 5.23 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 2.7 AU - 2.94 AU

Year: 3107 Days

Day: 13.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 15,094,959 km

• M1: 160,519 km (0.114 R)
• M2: 631,153 km (0.082 R)
• M3: 1,140,085 km (0.085 R)
• M4: 1,640,341 km (0.051 R)
• M5: 2,080,458 km (0.085 R)
• M6: 2,600,310 km (0.116 R)
• M7: 3,563,272 km (0.101 R)
• M8: 5,017,812 km (0.093 R)
• M9: 5,851,820 km (0.113 R)
• M10: 6,477,289 km (0.099 R)
• M11: 7,273,748 km (0.087 R)
• M12: 7,997,652 km (0.092 R)
• M13: 9,436,783 km (0.087 R)
• M14: 10,707,318 km (0.118 R)
• M15: 11,169,575 km (0.036 R)
• M16: 13,200,666 km (0.106 R)
• M17: 14,430,211 km (0.07 R)
• M18: 15,308,799 km (0.077 R)
• M19: 16,332,796 km (0.088 R)
• M20: 17,865,726 km (0.117 R)
• M21: 18,457,236 km (0.093 R)
• M22: 19,184,132 km (0.07 R)
• M23: 20,438,061 km (0.113 R)
• M24: 21,679,125 km (0.115 R)
• M25: 23,669,674 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.5

Radius: 12.2

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 2.45 AU - 3.29 AU

Year: 3190 Days

Day: 11.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 15,094,959 km

• M1: 151,692 km (0.11 R)
• M2: 585,227 km (0.051 R)
• M3: 1,101,639 km (0.059 R)
• M4: 1,507,947 km (0.119 R)
• M5: 1,943,725 km (0.065 R)
• M6: 2,789,103 km (0.076 R)
• M7: 3,731,569 km (0.053 R)
• M8: 4,143,412 km (0.077 R)
• M9: 4,607,614 km (0.068 R)
• M10: 5,083,036 km (0.082 R)
• M11: 5,467,204 km (0.083 R)
• M12: 7,412,874 km (0.099 R)
• M13: 7,971,921 km (0.082 R)
• M14: 8,966,298 km (0.102 R)
• M15: 11,160,899 km (0.049 R)
• M16: 13,193,934 km (0.083 R)
• M17: 14,109,922 km (0.03 R)
• M18: 15,313,885 km (0.112 R)
• M19: 17,489,188 km (0.109 R)
• M20: 18,202,321 km (0.059 R)
• M21: 18,991,898 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.3

Radius: 10.1

Gravity: 6.81 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 2.61 AU - 3.31 AU

Year: 3341 Days

Day: 8 Hours

Environment

Temp: -205 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 15,094,959 km

• M1: 135,386 km (0.093 R)
• M2: 594,652 km (0.067 R)
• M3: 1,312,572 km (0.081 R)
• M4: 2,596,570 km (0.079 R)
• M5: 2,922,095 km (0.079 R)
• M6: 3,311,798 km (0.081 R)
• M7: 5,358,895 km (0.119 R)
• M8: 8,034,004 km (0.084 R)
• M9: 9,094,952 km (0.068 R)
• M10: 9,697,682 km (0.084 R)
• M11: 11,278,782 km (0.063 R)
• M12: 11,754,204 km (0.116 R)
• M13: 12,108,452 km (0.077 R)
• M14: 12,791,665 km (0.097 R)
• M15: 13,404,418 km (0.063 R)
• M16: 13,742,509 km (0.08 R)
• M17: 14,185,319 km (0.055 R)
• M18: 16,053,048 km (0.09 R)
• M19: 23,043,906 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.5

Radius: 13.9

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 4.14 AU - 4.62 AU

Year: 6013 Days

Day: 7.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 15,094,959 km

• M1: 173,234 km (0.059 R)
• M2: 648,656 km (0.109 R)
• M3: 1,097,600 km (0.108 R)
• M4: 2,282,714 km (0.112 R)
• M5: 3,018,436 km (0.066 R)
• M6: 5,135,695 km (0.076 R)
• M7: 6,045,250 km (0.119 R)
• M8: 6,882,848 km (0.043 R)
• M9: 7,458,800 km (0.028 R)
• M10: 8,584,823 km (0.101 R)
• M11: 9,082,685 km (0.102 R)
• M12: 9,776,670 km (0.039 R)
• M13: 14,417,644 km (0.103 R)
• M14: 15,182,688 km (0.079 R)
• M15: 16,602,372 km (0.04 R)
• M16: 18,176,590 km (0.107 R)
• M17: 18,861,000 km (0.104 R)
• M18: 21,317,697 km (0.112 R)
• M19: 24,225,879 km (0.071 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 19.6

Radius: 3

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 4.95 AU - 7.71 AU

Year: 10448 Days

Day: 19 Hours

Environment

Temp: -230 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 15,094,959 km

• M1: 222,901 km (0.106 R)
• M2: 378,632 km (0.026 R)
• M3: 485,894 km (0.084 R)
• M4: 733,927 km (0.057 R)
• M5: 916,885 km (0.066 R)
• M6: 3,472,017 km (0.056 R)
• M7: 4,249,328 km (0.111 R)
• M8: 8,709,438 km (0.107 R)
• M9: 9,548,084 km (0.056 R)
• M10: 12,704,300 km (0.11 R)
• M11: 15,095,024 km (0.117 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 291 - 11,281 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit