🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.22

Radius: 0.55

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.54 AU - 0.6 AU

Year: 282 Days

Day: 22.4 Hours

Environment

Temp: -121 °C

Axial Tilt: 7.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 14,910,803 km

• M1: 46,076 km (0.038 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.9

Radius: 13.2

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.59 AU - 0.87 AU

Year: 409 Days

Day: 8.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 14,910,803 km

• M1: 164,109 km (0.075 R)
• M2: 800,947 km (0.113 R)
• M3: 1,276,519 km (0.076 R)
• M4: 1,921,884 km (0.119 R)
• M5: 2,529,550 km (0.099 R)
• M6: 3,074,835 km (0.044 R)
• M7: 3,537,690 km (0.092 R)
• M8: 3,960,753 km (0.094 R)
• M9: 4,497,510 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.3

Radius: 14

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.88 AU - 1.28 AU

Year: 736 Days

Day: 10 Hours

Environment

Temp: -154 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 14,910,803 km

• M1: 174,282 km (0.1 R)
• M2: 634,594 km (0.072 R)
• M3: 1,087,577 km (0.06 R)
• M4: 1,525,898 km (0.072 R)
• M5: 2,210,009 km (0.036 R)
• M6: 3,155,468 km (0.087 R)
• M7: 4,018,947 km (0.096 R)
• M8: 4,761,700 km (0.106 R)
• M9: 5,726,457 km (0.099 R)
• M10: 6,668,923 km (0.065 R)
• M11: 7,995,857 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221.2

Radius: 11.1

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.11 AU - 1.37 AU

Year: 906 Days

Day: 5.2 Hours

Environment

Temp: -173 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 14,910,803 km

• M1: 138,079 km (0.048 R)
• M2: 595,549 km (0.096 R)
• M3: 1,392,158 km (0.117 R)
• M4: 2,225,568 km (0.084 R)
• M5: 2,582,358 km (0.106 R)
• M6: 2,933,165 km (0.087 R)
• M7: 3,352,339 km (0.117 R)
• M8: 3,784,976 km (0.112 R)
• M9: 4,370,801 km (0.068 R)
• M10: 4,888,410 km (0.115 R)
• M11: 5,532,428 km (0.069 R)
• M12: 6,102,247 km (0.053 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 973.5

Radius: 13.8

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.78 AU - 2.06 AU

Year: 1745 Days

Day: 7.5 Hours

Environment

Temp: -186 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 14,910,803 km

• M1: 174,431 km (0.088 R)
• M2: 754,123 km (0.108 R)
• M3: 1,328,130 km (0.069 R)
• M4: 1,782,608 km (0.099 R)
• M5: 2,958,298 km (0.097 R)
• M6: 3,915,724 km (0.106 R)
• M7: 4,497,810 km (0.117 R)
• M8: 6,467,415 km (0.095 R)
• M9: 7,143,448 km (0.084 R)
• M10: 7,717,754 km (0.087 R)
• M11: 8,199,160 km (0.038 R)
• M12: 8,926,655 km (0.071 R)
• M13: 15,850,493 km (0.047 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.9

Radius: 10

Gravity: 9.38 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 2.28 AU - 2.68 AU

Year: 2562 Days

Day: 8.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 14,910,803 km

• M1: 124,465 km (0.053 R)
• M2: 508,334 km (0.104 R)
• M3: 1,111,961 km (0.092 R)
• M4: 1,521,560 km (0.047 R)
• M5: 2,188,617 km (0.116 R)
• M6: 3,542,029 km (0.078 R)
• M7: 5,667,815 km (0.105 R)
• M8: 6,178,093 km (0.049 R)
• M9: 6,865,944 km (0.097 R)
• M10: 7,604,209 km (0.095 R)
• M11: 7,992,715 km (0.044 R)
• M12: 9,531,928 km (0.11 R)
• M13: 10,648,975 km (0.069 R)
• M14: 11,301,521 km (0.109 R)
• M15: 11,637,518 km (0.078 R)
• M16: 12,285,875 km (0.118 R)
• M17: 12,641,319 km (0.077 R)
• M18: 13,513,325 km (0.113 R)
• M19: 14,572,329 km (0.086 R)
• M20: 16,584,420 km (0.092 R)
• M21: 16,964,249 km (0.08 R)
• M22: 17,685,161 km (0.105 R)
• M23: 18,081,595 km (0.09 R)
• M24: 18,775,131 km (0.095 R)
• M25: 21,342,829 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42

Radius: 12.3

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 3.77 AU - 5.93 AU

Year: 7007 Days

Day: 14.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 14,910,803 km

• M1: 153,039 km (0.096 R)
• M2: 543,489 km (0.076 R)
• M3: 1,724,564 km (0.049 R)
• M4: 2,122,195 km (0.092 R)
• M5: 2,914,915 km (0.11 R)
• M6: 3,808,014 km (0.05 R)
• M7: 4,434,530 km (0.101 R)
• M8: 4,938,076 km (0.082 R)
• M9: 5,941,279 km (0.057 R)
• M10: 6,479,084 km (0.077 R)
• M11: 8,806,677 km (0.106 R)
• M12: 9,539,707 km (0.117 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 323 - 19,032 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit