🌌 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: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.26

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.52 AU - 0.7 AU

Year: 308 Days

Day: 46.8 Hours

Environment

Temp: -126 °C

Axial Tilt: 18.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 515.9

Radius: 10.8

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.78 AU - 1.3 AU

Year: 685 Days

Day: 7.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 60.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 78,014,260 km

• M1: 137,181 km (0.099 R)
• M2: 533,765 km (0.033 R)
• M3: 1,024,596 km (0.118 R)
• M4: 1,406,220 km (0.093 R)
• M5: 1,977,684 km (0.077 R)
• M6: 2,508,756 km (0.037 R)
• M7: 4,099,580 km (0.119 R)
• M8: 5,732,142 km (0.101 R)
• M9: 6,375,263 km (0.072 R)
• M10: 7,299,628 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 692.7

Radius: 10

Gravity: 6.93 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.51 AU - 1.71 AU

Year: 1319 Days

Day: 10.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 78,014,260 km

• M1: 125,064 km (0.082 R)
• M2: 464,352 km (0.059 R)
• M3: 1,071,869 km (0.118 R)
• M4: 1,532,481 km (0.117 R)
• M5: 1,869,824 km (0.037 R)
• M6: 2,646,386 km (0.113 R)
• M7: 3,467,230 km (0.064 R)
• M8: 3,903,457 km (0.112 R)
• M9: 4,886,465 km (0.089 R)
• M10: 5,394,050 km (0.085 R)
• M11: 5,847,332 km (0.069 R)
• M12: 7,080,018 km (0.072 R)
• M13: 7,571,148 km (0.091 R)
• M14: 8,196,019 km (0.115 R)
• M15: 8,737,712 km (0.079 R)
• M16: 9,394,597 km (0.031 R)
• M17: 10,116,257 km (0.097 R)
• M18: 11,112,579 km (0.099 R)
• M19: 11,599,221 km (0.117 R)
• M20: 11,919,659 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 717.3

Radius: 14.7

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 2 AU - 3.26 AU

Year: 2754 Days

Day: 8 Hours

Environment

Temp: -199 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 78,014,260 km

• M1: 183,108 km (0.078 R)
• M2: 670,647 km (0.088 R)
• M3: 1,384,827 km (0.088 R)
• M4: 2,093,622 km (0.08 R)
• M5: 2,674,660 km (0.049 R)
• M6: 3,188,679 km (0.03 R)
• M7: 3,984,539 km (0.071 R)
• M8: 4,593,702 km (0.068 R)
• M9: 5,362,186 km (0.119 R)
• M10: 6,000,371 km (0.118 R)
• M11: 6,575,425 km (0.119 R)
• M12: 7,247,269 km (0.091 R)
• M13: 7,900,413 km (0.079 R)
• M14: 8,626,561 km (0.074 R)
• M15: 9,688,257 km (0.102 R)
• M16: 11,986,081 km (0.07 R)
• M17: 12,901,470 km (0.1 R)
• M18: 13,816,111 km (0.119 R)
• M19: 15,019,776 km (0.119 R)
• M20: 16,714,420 km (0.08 R)
• M21: 18,024,599 km (0.112 R)
• M22: 18,704,970 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.5

Radius: 12

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 4.23 AU - 6.01 AU

Year: 7480 Days

Day: 9.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 78,014,260 km

• M1: 150,047 km (0.101 R)
• M2: 566,378 km (0.074 R)
• M3: 1,370,167 km (0.057 R)
• M4: 1,993,242 km (0.051 R)
• M5: 2,629,332 km (0.087 R)
• M6: 3,056,883 km (0.043 R)
• M7: 3,810,108 km (0.116 R)
• M8: 6,544,308 km (0.114 R)
• M9: 7,525,670 km (0.113 R)
• M10: 7,952,623 km (0.089 R)
• M11: 11,160,151 km (0.118 R)
• M12: 12,238,153 km (0.098 R)
• M13: 20,211,570 km (0.075 R)
• M14: 24,746,031 km (0.119 R)
• M15: 27,203,924 km (0.115 R)
• M16: 29,724,199 km (0.083 R)
• M17: 33,217,758 km (0.067 R)
• M18: 36,093,329 km (0.097 R)
• M19: 37,760,597 km (0.107 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 852.9

Radius: 4.2

Gravity: 48.35 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 7.92 AU - 10.88 AU

Year: 18608 Days

Day: 21.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 78,014,260 km

• M1: 53,556 km (0.045 R)
• M2: 204,500 km (0.025 R)
• M3: 455,825 km (0.074 R)
• M4: 685,308 km (0.112 R)
• M5: 1,198,728 km (0.104 R)
• M6: 1,406,669 km (0.098 R)
• M7: 1,603,839 km (0.106 R)
• M8: 1,838,109 km (0.066 R)
• M9: 2,307,996 km (0.105 R)
• M10: 2,559,320 km (0.114 R)
• M11: 2,854,028 km (0.065 R)
• M12: 5,192,991 km (0.076 R)
• M13: 5,464,810 km (0.086 R)
• M14: 5,869,622 km (0.097 R)
• M15: 6,922,342 km (0.106 R)
• M16: 7,062,216 km (0.075 R)
• M17: 9,224,354 km (0.035 R)
• M18: 12,124,907 km (0.045 R)
• M19: 16,557,492 km (0.09 R)
• M20: 18,542,955 km (0.075 R)
• M21: 18,994,741 km (0.098 R)
• M22: 20,298,486 km (0.064 R)
• M23: 21,561,541 km (0.072 R)
• M24: 22,060,899 km (0.072 R)
• M25: 23,710,963 km (0.03 R)
• M26: 29,151,389 km (0.09 R)
• M27: 32,030,101 km (0.12 R)
• M28: 33,871,950 km (0.102 R)
• M29: 35,783,362 km (0.049 R)
• M30: 46,260,598 km (0.108 R)
• M31: 47,425,517 km (0.084 R)
• M32: 49,987,231 km (0.086 R)
• M33: 56,886,535 km (0.097 R)
• M34: 58,223,042 km (0.048 R)
• M35: 59,190,342 km (0.065 R)
• M36: 59,775,868 km (0.114 R)
• M37: 62,357,778 km (0.096 R)
• M38: 68,812,777 km (0.113 R)
• M39: 70,986,284 km (0.106 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 383 - 19,349 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit