🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.86

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.6 AU - 0.6 AU

Year: 300 Days

Day: 33.8 Hours

Environment

Temp: -124 °C

Axial Tilt: 24.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.54 AU - 0.8 AU

Year: 354 Days

Day: 26.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 1.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 744.6

Radius: 12.8

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.84 AU - 1.06 AU

Year: 598 Days

Day: 11.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 156 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 39,762,317 km

• M1: 160,070 km (0.09 R)
• M2: 600,187 km (0.036 R)
• M3: 1,440,777 km (0.103 R)
• M4: 2,047,845 km (0.119 R)
• M5: 2,448,020 km (0.102 R)
• M6: 3,087,999 km (0.08 R)
• M7: 4,196,519 km (0.08 R)
• M8: 5,254,775 km (0.084 R)
• M9: 6,092,373 km (0.118 R)
• M10: 6,828,993 km (0.113 R)
• M11: 7,316,383 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 365.7

Radius: 9.1

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 2.49 AU - 3.49 AU

Year: 3338 Days

Day: 8.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 39,762,317 km

• M1: 113,096 km (0.085 R)
• M2: 410,796 km (0.105 R)
• M3: 734,077 km (0.077 R)
• M4: 1,199,625 km (0.099 R)
• M5: 1,571,376 km (0.106 R)
• M6: 2,301,264 km (0.079 R)
• M7: 2,653,567 km (0.119 R)
• M8: 4,211,479 km (0.086 R)
• M9: 4,503,046 km (0.107 R)
• M10: 4,875,395 km (0.1 R)
• M11: 6,303,157 km (0.082 R)
• M12: 6,911,571 km (0.111 R)
• M13: 7,865,856 km (0.078 R)
• M14: 8,181,358 km (0.09 R)
• M15: 9,179,176 km (0.105 R)
• M16: 10,671,265 km (0.108 R)
• M17: 12,658,673 km (0.057 R)
• M18: 16,465,789 km (0.094 R)
• M19: 18,159,835 km (0.095 R)
• M20: 18,600,850 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.8

Radius: 10.4

Gravity: 5.7 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 4.53 AU - 4.83 AU

Year: 6537 Days

Day: 13.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 39,762,317 km

• M1: 130,599 km (0.093 R)
• M2: 479,312 km (0.066 R)
• M3: 2,335,672 km (0.047 R)
• M4: 2,666,133 km (0.12 R)
• M5: 3,128,690 km (0.1 R)
• M6: 3,532,305 km (0.093 R)
• M7: 4,791,321 km (0.109 R)
• M8: 5,598,700 km (0.114 R)
• M9: 6,767,209 km (0.044 R)
• M10: 7,154,817 km (0.092 R)
• M11: 8,169,540 km (0.101 R)
• M12: 9,406,565 km (0.108 R)
• M13: 11,002,774 km (0.068 R)
• M14: 11,391,728 km (0.063 R)
• M15: 12,508,776 km (0.096 R)
• M16: 13,093,853 km (0.115 R)
• M17: 13,530,828 km (0.103 R)
• M18: 15,802,173 km (0.076 R)
• M19: 17,254,768 km (0.119 R)
• M20: 20,061,822 km (0.117 R)
• M21: 22,068,528 km (0.065 R)
• M22: 22,844,642 km (0.103 R)
• M23: 24,369,194 km (0.109 R)
• M24: 28,612,388 km (0.032 R)
• M25: 30,287,585 km (0.027 R)
• M26: 33,425,251 km (0.049 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 234.3

Radius: 7.9

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 6.49 AU - 8.25 AU

Year: 12919 Days

Day: 19.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 81.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 39,762,317 km

• M1: 98,286 km (0.091 R)
• M2: 353,500 km (0.042 R)
• M3: 803,490 km (0.083 R)
• M4: 1,158,486 km (0.114 R)
• M5: 1,497,923 km (0.072 R)
• M6: 2,107,385 km (0.109 R)
• M7: 2,733,153 km (0.098 R)
• M8: 3,207,977 km (0.079 R)
• M9: 4,034,954 km (0.108 R)
• M10: 4,707,845 km (0.107 R)
• M11: 7,252,206 km (0.089 R)
• M12: 7,678,111 km (0.051 R)
• M13: 10,206,315 km (0.052 R)
• M14: 13,878,643 km (0.057 R)
• M15: 15,528,259 km (0.117 R)
• M16: 15,911,828 km (0.101 R)
• M17: 16,171,081 km (0.041 R)
• M18: 19,803,018 km (0.108 R)
• M19: 20,712,424 km (0.049 R)
• M20: 21,967,699 km (0.094 R)
• M21: 25,326,770 km (0.083 R)
• M22: 27,965,976 km (0.09 R)
• M23: 28,249,164 km (0.12 R)
• M24: 29,595,545 km (0.103 R)
• M25: 30,883,583 km (0.062 R)
• M26: 31,490,501 km (0.03 R)
• M27: 32,208,571 km (0.068 R)
• M28: 33,464,894 km (0.116 R)
• M29: 35,410,265 km (0.052 R)
• M30: 36,748,268 km (0.035 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 510 - 13,640 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit