🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.5

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.42 AU - 0.7 AU

Year: 275 Days

Day: 39 Hours

Environment

Temp: -120 °C

Axial Tilt: 32.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.3

Radius: 14.7

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.62 AU - 0.94 AU

Year: 452 Days

Day: 13 Hours

Environment

Temp: -138 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 36,085,351 km

• M1: 182,809 km (0.076 R)
• M2: 685,457 km (0.112 R)
• M3: 1,300,604 km (0.099 R)
• M4: 2,603,901 km (0.04 R)
• M5: 3,081,267 km (0.101 R)
• M6: 3,595,884 km (0.04 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 774.2

Radius: 14.9

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.95 AU - 1.99 AU

Year: 1814 Days

Day: 7.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,085,351 km

• M1: 185,352 km (0.088 R)
• M2: 670,198 km (0.062 R)
• M3: 1,487,003 km (0.116 R)
• M4: 2,126,683 km (0.099 R)
• M5: 3,191,671 km (0.096 R)
• M6: 3,917,819 km (0.1 R)
• M7: 5,563,096 km (0.09 R)
• M8: 6,112,419 km (0.115 R)
• M9: 7,209,720 km (0.059 R)
• M10: 7,864,210 km (0.102 R)
• M11: 8,403,960 km (0.113 R)
• M12: 9,325,782 km (0.089 R)
• M13: 11,035,536 km (0.103 R)
• M14: 12,864,220 km (0.11 R)
• M15: 14,395,953 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.1

Radius: 9.6

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.29 AU - 2.49 AU

Year: 2424 Days

Day: 8.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 36,085,351 km

• M1: 120,875 km (0.096 R)
• M2: 426,803 km (0.074 R)
• M3: 911,500 km (0.095 R)
• M4: 1,220,419 km (0.084 R)
• M5: 1,971,850 km (0.053 R)
• M6: 2,326,845 km (0.08 R)
• M7: 2,876,468 km (0.068 R)
• M8: 4,555,106 km (0.117 R)
• M9: 5,287,387 km (0.072 R)
• M10: 6,780,374 km (0.031 R)
• M11: 7,193,862 km (0.114 R)
• M12: 7,901,760 km (0.096 R)
• M13: 8,866,217 km (0.116 R)
• M14: 9,874,507 km (0.084 R)
• M15: 10,238,329 km (0.088 R)
• M16: 11,857,277 km (0.089 R)
• M17: 12,420,214 km (0.117 R)
• M18: 13,518,860 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 843.5

Radius: 11.4

Gravity: 6.49 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.35 AU - 2.85 AU

Year: 2750 Days

Day: 9.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 36,085,351 km

• M1: 141,819 km (0.071 R)
• M2: 590,762 km (0.062 R)
• M3: 1,373,608 km (0.064 R)
• M4: 1,894,208 km (0.109 R)
• M5: 2,543,912 km (0.119 R)
• M6: 3,022,027 km (0.102 R)
• M7: 3,872,042 km (0.077 R)
• M8: 4,375,289 km (0.114 R)
• M9: 5,361,288 km (0.1 R)
• M10: 6,042,408 km (0.071 R)
• M11: 6,989,063 km (0.094 R)
• M12: 9,730,145 km (0.087 R)
• M13: 11,402,200 km (0.117 R)
• M14: 12,395,231 km (0.104 R)
• M15: 12,799,145 km (0.115 R)
• M16: 13,823,741 km (0.118 R)
• M17: 14,258,323 km (0.054 R)
• M18: 14,702,030 km (0.117 R)
• M19: 16,677,769 km (0.088 R)
• M20: 17,060,291 km (0.117 R)
• M21: 17,504,447 km (0.089 R)
• M22: 18,013,379 km (0.068 R)
• M23: 20,770,767 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.4

Radius: 14.2

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 2.64 AU - 4.18 AU

Year: 4131 Days

Day: 8.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,085,351 km

• M1: 180,565 km (0.101 R)
• M2: 706,700 km (0.08 R)
• M3: 1,422,825 km (0.115 R)
• M4: 2,280,470 km (0.106 R)
• M5: 2,929,874 km (0.091 R)
• M6: 3,951,179 km (0.109 R)
• M7: 4,627,661 km (0.116 R)
• M8: 5,172,197 km (0.027 R)
• M9: 5,759,368 km (0.111 R)
• M10: 6,941,491 km (0.095 R)
• M11: 7,424,393 km (0.08 R)
• M12: 7,895,476 km (0.112 R)
• M13: 9,391,605 km (0.112 R)
• M14: 9,943,621 km (0.032 R)
• M15: 11,730,867 km (0.046 R)
• M16: 12,465,243 km (0.08 R)
• M17: 13,181,368 km (0.04 R)
• M18: 16,323,970 km (0.088 R)
• M19: 16,950,037 km (0.096 R)
• M20: 17,415,287 km (0.05 R)
• M21: 17,949,052 km (0.1 R)
• M22: 21,655,040 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588

Radius: 11.5

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 3.88 AU - 5.86 AU

Year: 7050 Days

Day: 6.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 36,085,351 km

• M1: 143,016 km (0.084 R)
• M2: 665,112 km (0.112 R)
• M3: 1,123,181 km (0.042 R)
• M4: 1,543,252 km (0.038 R)
• M5: 2,210,159 km (0.035 R)
• M6: 3,756,851 km (0.079 R)
• M7: 5,493,982 km (0.078 R)
• M8: 5,993,339 km (0.089 R)
• M9: 6,354,170 km (0.085 R)
• M10: 7,600,170 km (0.088 R)
• M11: 8,341,428 km (0.119 R)
• M12: 9,609,270 km (0.113 R)
• M13: 13,225,798 km (0.098 R)
• M14: 14,414,503 km (0.059 R)
• M15: 15,488,915 km (0.066 R)
• M16: 17,729,741 km (0.062 R)
• M17: 23,811,194 km (0.033 R)
• M18: 27,049,988 km (0.118 R)
• M19: 32,441,944 km (0.075 R)
• M20: 33,661,914 km (0.066 R)
• M21: 35,762,867 km (0.103 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 206 - 16,647 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit