🌌 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 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.9

Radius: 8.6

Gravity: 11.63 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.5 AU - 0.6 AU

Year: 272 Days

Day: 5.3 Hours

Environment

Temp: -137 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 61,530,900 km

• M1: 106,962 km (0.113 R)
• M2: 375,939 km (0.071 R)
• M3: 734,825 km (0.103 R)
• M4: 1,012,478 km (0.038 R)
• M5: 1,402,929 km (0.102 R)
• M6: 1,714,990 km (0.081 R)
• M7: 2,065,797 km (0.119 R)
• M8: 2,342,852 km (0.077 R)
• M9: 2,617,364 km (0.09 R)
• M10: 3,573,295 km (0.117 R)
• M11: 3,866,207 km (0.09 R)
• M12: 4,368,557 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 81.9

Radius: 13.2

Gravity: 0.47 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.63 AU - 0.95 AU

Year: 468 Days

Day: 10.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 54.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 61,530,900 km

• M1: 164,109 km (0.077 R)
• M2: 586,723 km (0.05 R)
• M3: 1,374,505 km (0.067 R)
• M4: 1,854,565 km (0.083 R)
• M5: 2,880,208 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 947.4

Radius: 10.6

Gravity: 8.43 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.89 AU - 1.95 AU

Year: 1774 Days

Day: 7.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 61,530,900 km

• M1: 131,796 km (0.115 R)
• M2: 464,801 km (0.117 R)
• M3: 1,014,124 km (0.083 R)
• M4: 1,586,336 km (0.083 R)
• M5: 2,351,080 km (0.085 R)
• M6: 3,345,607 km (0.088 R)
• M7: 3,691,477 km (0.09 R)
• M8: 4,177,221 km (0.098 R)
• M9: 4,600,284 km (0.046 R)
• M10: 5,627,722 km (0.11 R)
• M11: 6,069,186 km (0.047 R)
• M12: 6,911,122 km (0.053 R)
• M13: 7,246,371 km (0.11 R)
• M14: 8,697,471 km (0.12 R)
• M15: 9,055,758 km (0.106 R)
• M16: 9,732,389 km (0.095 R)
• M17: 10,442,380 km (0.032 R)
• M18: 13,201,713 km (0.055 R)
• M19: 13,763,004 km (0.098 R)
• M20: 14,933,308 km (0.042 R)
• M21: 15,353,529 km (0.058 R)
• M22: 16,562,429 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948.5

Radius: 11.8

Gravity: 6.81 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 2.22 AU - 3.28 AU

Year: 3041 Days

Day: 9.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 61,530,900 km

• M1: 146,756 km (0.087 R)
• M2: 673,938 km (0.111 R)
• M3: 1,392,906 km (0.092 R)
• M4: 1,964,220 km (0.117 R)
• M5: 2,886,341 km (0.107 R)
• M6: 3,803,376 km (0.094 R)
• M7: 4,274,161 km (0.028 R)
• M8: 5,543,947 km (0.117 R)
• M9: 8,814,307 km (0.086 R)
• M10: 10,196,591 km (0.117 R)
• M11: 11,024,465 km (0.092 R)
• M12: 12,534,058 km (0.108 R)
• M13: 14,379,647 km (0.055 R)
• M14: 16,511,267 km (0.115 R)
• M15: 22,748,002 km (0.119 R)
• M16: 23,873,277 km (0.109 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 839.4

Radius: 6.3

Gravity: 21.15 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 6.87 AU - 6.89 AU

Year: 12034 Days

Day: 24.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 61,530,900 km

• M1: 78,389 km (0.11 R)
• M2: 399,726 km (0.119 R)
• M3: 820,844 km (0.075 R)
• M4: 1,350,570 km (0.048 R)
• M5: 1,838,408 km (0.114 R)
• M6: 2,541,817 km (0.073 R)
• M7: 2,804,810 km (0.102 R)
• M8: 3,411,430 km (0.054 R)
• M9: 4,280,743 km (0.084 R)
• M10: 4,718,317 km (0.057 R)
• M11: 5,015,119 km (0.055 R)
• M12: 6,447,519 km (0.097 R)
• M13: 6,813,435 km (0.059 R)
• M14: 8,133,487 km (0.084 R)
• M15: 9,408,210 km (0.072 R)
• M16: 10,475,591 km (0.039 R)
• M17: 11,860,119 km (0.119 R)
• M18: 12,347,659 km (0.099 R)
• M19: 12,911,942 km (0.109 R)
• M20: 14,159,438 km (0.103 R)
• M21: 15,128,533 km (0.101 R)
• M22: 16,815,698 km (0.065 R)
• M23: 17,430,695 km (0.114 R)
• M24: 17,665,265 km (0.095 R)
• M25: 21,440,217 km (0.106 R)
• M26: 21,709,493 km (0.061 R)
• M27: 22,530,786 km (0.107 R)
• M28: 23,657,856 km (0.056 R)
• M29: 24,920,761 km (0.119 R)
• M30: 27,264,212 km (0.108 R)
• M31: 28,869,397 km (0.108 R)
• M32: 30,763,456 km (0.054 R)
• M33: 38,504,846 km (0.115 R)
• M34: 39,303,549 km (0.118 R)
• M35: 39,572,227 km (0.107 R)
• M36: 44,183,881 km (0.101 R)
• M37: 46,995,124 km (0.057 R)
• M38: 47,907,222 km (0.101 R)
• M39: 48,367,535 km (0.061 R)
• M40: 57,167,031 km (0.115 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 371.8

Radius: 4.3

Gravity: 20.11 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 7.01 AU - 9.05 AU

Year: 15174 Days

Day: 20.8 Hours

Environment

Temp: -237 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 61,530,900 km

• M1: 54,753 km (0.119 R)
• M2: 374,743 km (0.092 R)
• M3: 664,813 km (0.119 R)
• M4: 1,807,741 km (0.114 R)
• M5: 3,042,970 km (0.049 R)
• M6: 4,240,651 km (0.105 R)
• M7: 5,901,337 km (0.082 R)
• M8: 7,139,558 km (0.112 R)
• M9: 7,305,612 km (0.065 R)
• M10: 12,286,473 km (0.103 R)
• M11: 12,465,093 km (0.079 R)
• M12: 12,827,718 km (0.079 R)
• M13: 14,747,358 km (0.075 R)
• M14: 17,896,543 km (0.079 R)
• M15: 22,873,814 km (0.104 R)
• M16: 24,154,970 km (0.088 R)
• M17: 25,483,100 km (0.106 R)
• M18: 33,667,150 km (0.094 R)
• M19: 39,435,345 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 468.5

Radius: 7.2

Gravity: 9.04 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 8.72 AU - 9 AU

Year: 17587 Days

Day: 19.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 61,530,900 km

• M1: 90,357 km (0.096 R)
• M2: 365,617 km (0.068 R)
• M3: 1,004,251 km (0.114 R)
• M4: 1,298,958 km (0.109 R)
• M5: 2,218,237 km (0.063 R)
• M6: 2,525,810 km (0.116 R)
• M7: 3,004,224 km (0.102 R)
• M8: 5,181,921 km (0.099 R)
• M9: 6,069,934 km (0.048 R)
• M10: 10,367,731 km (0.089 R)
• M11: 15,452,712 km (0.106 R)
• M12: 18,901,841 km (0.089 R)
• M13: 22,926,921 km (0.084 R)
• M14: 31,784,012 km (0.064 R)
• M15: 32,260,631 km (0.101 R)
• M16: 35,348,032 km (0.075 R)
• M17: 40,828,550 km (0.088 R)
• M18: 45,179,604 km (0.081 R)
• M19: 45,630,941 km (0.084 R)
• M20: 46,237,560 km (0.116 R)
• M21: 47,621,789 km (0.101 R)
• M22: 51,448,204 km (0.079 R)
• M23: 54,618,931 km (0.084 R)
• M24: 57,212,509 km (0.092 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: 429 - 17,769 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit