🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.2

Radius: 9.2

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.56 AU - 0.86 AU

Year: 399 Days

Day: 9.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 52,048,263 km

• M1: 119,678 km (0.066 R)
• M2: 482,453 km (0.036 R)
• M3: 889,359 km (0.078 R)
• M4: 1,215,782 km (0.094 R)
• M5: 1,723,068 km (0.046 R)
• M6: 2,175,751 km (0.094 R)
• M7: 3,182,246 km (0.117 R)
• M8: 3,609,497 km (0.119 R)
• M9: 4,525,784 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 457.6

Radius: 10.7

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.7 AU - 0.78 AU

Year: 424 Days

Day: 5.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 52,048,263 km

• M1: 136,882 km (0.076 R)
• M2: 508,932 km (0.113 R)
• M3: 1,117,047 km (0.077 R)
• M4: 1,778,569 km (0.043 R)
• M5: 2,120,999 km (0.12 R)
• M6: 2,462,531 km (0.09 R)
• M7: 3,753,261 km (0.098 R)
• M8: 4,567,971 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 875.7

Radius: 9

Gravity: 10.81 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 1.72 AU - 1.88 AU

Year: 1610 Days

Day: 12.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 52,048,263 km

• M1: 111,899 km (0.071 R)
• M2: 409,449 km (0.115 R)
• M3: 813,364 km (0.103 R)
• M4: 1,285,345 km (0.106 R)
• M5: 2,224,371 km (0.083 R)
• M6: 2,559,320 km (0.08 R)
• M7: 3,017,987 km (0.103 R)
• M8: 3,564,618 km (0.077 R)
• M9: 3,952,525 km (0.097 R)
• M10: 4,329,362 km (0.096 R)
• M11: 4,668,501 km (0.062 R)
• M12: 5,155,591 km (0.108 R)
• M13: 5,699,529 km (0.058 R)
• M14: 6,982,630 km (0.113 R)
• M15: 8,695,675 km (0.115 R)
• M16: 10,600,505 km (0.095 R)
• M17: 11,405,192 km (0.104 R)
• M18: 11,707,679 km (0.074 R)
• M19: 12,487,383 km (0.12 R)
• M20: 13,934,593 km (0.026 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.8

Radius: 12.3

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.52 AU - 2.24 AU

Year: 1719 Days

Day: 8 Hours

Environment

Temp: -193 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,048,263 km

• M1: 153,039 km (0.097 R)
• M2: 550,221 km (0.045 R)
• M3: 1,022,352 km (0.088 R)
• M4: 1,611,767 km (0.094 R)
• M5: 3,051,647 km (0.114 R)
• M6: 4,201,905 km (0.12 R)
• M7: 5,035,913 km (0.11 R)
• M8: 5,731,543 km (0.092 R)
• M9: 6,782,319 km (0.084 R)
• M10: 8,179,712 km (0.111 R)
• M11: 11,117,515 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 594.5

Radius: 13.3

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.99 AU - 2.77 AU

Year: 2448 Days

Day: 9.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 52,048,263 km

• M1: 165,605 km (0.077 R)
• M2: 644,019 km (0.119 R)
• M3: 1,209,050 km (0.108 R)
• M4: 1,624,782 km (0.057 R)
• M5: 2,238,433 km (0.118 R)
• M6: 2,972,659 km (0.066 R)
• M7: 3,466,033 km (0.114 R)
• M8: 4,150,144 km (0.075 R)
• M9: 4,662,068 km (0.109 R)
• M10: 5,079,297 km (0.059 R)
• M11: 5,545,593 km (0.1 R)
• M12: 6,921,594 km (0.08 R)
• M13: 8,102,669 km (0.069 R)
• M14: 9,762,907 km (0.108 R)
• M15: 12,247,278 km (0.116 R)
• M16: 13,089,814 km (0.092 R)
• M17: 16,146,846 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.9

Radius: 8.3

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 2.08 AU - 2.94 AU

Year: 2652 Days

Day: 14.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 52,048,263 km

• M1: 103,223 km (0.079 R)
• M2: 427,252 km (0.099 R)
• M3: 802,742 km (0.055 R)
• M4: 1,083,388 km (0.065 R)
• M5: 1,400,236 km (0.098 R)
• M6: 1,743,563 km (0.096 R)
• M7: 2,042,161 km (0.114 R)
• M8: 2,452,657 km (0.12 R)
• M9: 2,892,176 km (0.076 R)
• M10: 3,539,635 km (0.079 R)
• M11: 4,006,979 km (0.119 R)
• M12: 4,900,826 km (0.115 R)
• M13: 6,803,711 km (0.09 R)
• M14: 8,326,169 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 856.3

Radius: 12.3

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 4.73 AU - 4.73 AU

Year: 6860 Days

Day: 6.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,048,263 km

• M1: 154,086 km (0.03 R)
• M2: 665,561 km (0.077 R)
• M3: 1,488,798 km (0.109 R)
• M4: 2,418,399 km (0.097 R)
• M5: 2,810,794 km (0.068 R)
• M6: 4,201,755 km (0.108 R)
• M7: 5,154,245 km (0.095 R)
• M8: 11,242,430 km (0.107 R)
• M9: 14,962,480 km (0.05 R)
• M10: 17,578,049 km (0.083 R)
• M11: 21,892,003 km (0.082 R)
• M12: 22,456,286 km (0.089 R)
• M13: 30,402,925 km (0.116 R)
• M14: 32,335,281 km (0.047 R)
• M15: 36,895,323 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 407.7

Radius: 5.2

Gravity: 15.08 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 7.69 AU - 8.01 AU

Year: 14667 Days

Day: 24.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 52,048,263 km

• M1: 64,626 km (0.119 R)
• M2: 298,149 km (0.112 R)
• M3: 539,300 km (0.071 R)
• M4: 713,731 km (0.109 R)
• M5: 1,800,261 km (0.12 R)
• M6: 2,449,815 km (0.053 R)
• M7: 2,740,783 km (0.03 R)
• M8: 2,939,748 km (0.096 R)
• M9: 3,647,495 km (0.119 R)
• M10: 5,058,802 km (0.107 R)
• M11: 5,600,795 km (0.113 R)
• M12: 5,958,633 km (0.106 R)
• M13: 6,143,087 km (0.108 R)
• M14: 8,204,845 km (0.043 R)
• M15: 8,903,467 km (0.111 R)
• M16: 9,096,299 km (0.05 R)
• M17: 10,795,431 km (0.087 R)
• M18: 13,437,928 km (0.107 R)
• M19: 13,948,954 km (0.095 R)
• M20: 14,340,601 km (0.101 R)
• M21: 17,515,667 km (0.06 R)
• M22: 23,796,832 km (0.087 R)
• M23: 27,793,340 km (0.112 R)
• M24: 30,111,658 km (0.103 R)
• M25: 45,341,469 km (0.105 R)
• M26: 45,769,618 km (0.091 R)
• M27: 46,633,695 km (0.109 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 501 - 12,193 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit