🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.09

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.41 AU - 0.63 AU

Year: 246 Days

Day: 36.9 Hours

Environment

Temp: -125 °C

Axial Tilt: 47.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 71,981,184 km

• M1: 388,206 km (0.037 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.22

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.52 AU - 0.74 AU

Year: 328 Days

Day: 46.9 Hours

Environment

Temp: -138 °C

Axial Tilt: 26.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.2

Radius: 10.1

Gravity: 5.91 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.59 AU - 0.93 AU

Year: 435 Days

Day: 9.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 71,981,184 km

• M1: 127,757 km (0.113 R)
• M2: 336,745 km (0.083 R)
• M3: 542,591 km (0.12 R)
• M4: 805,884 km (0.088 R)
• M5: 1,045,540 km (0.108 R)
• M6: 1,235,379 km (0.055 R)
• M7: 1,481,019 km (0.03 R)
• M8: 1,697,487 km (0.081 R)
• M9: 1,885,980 km (0.085 R)
• M10: 2,205,821 km (0.052 R)
• M11: 2,544,809 km (0.109 R)
• M12: 3,004,673 km (0.106 R)
• M13: 3,232,960 km (0.081 R)
• M14: 3,461,396 km (0.116 R)
• M15: 3,688,934 km (0.099 R)
• M16: 3,914,827 km (0.081 R)
• M17: 4,176,174 km (0.088 R)
• M18: 4,524,887 km (0.085 R)
• M19: 4,795,809 km (0.105 R)
• M20: 5,064,337 km (0.062 R)
• M21: 5,351,265 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.2

Radius: 11.8

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.68 AU - 1.06 AU

Year: 532 Days

Day: 7 Hours

Environment

Temp: -161 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,981,184 km

• M1: 153,637 km (0.095 R)
• M2: 408,701 km (0.099 R)
• M3: 708,795 km (0.113 R)
• M4: 1,850,974 km (0.082 R)
• M5: 2,153,611 km (0.118 R)
• M6: 2,418,250 km (0.054 R)
• M7: 2,723,878 km (0.11 R)
• M8: 2,961,589 km (0.118 R)
• M9: 3,182,545 km (0.117 R)
• M10: 3,468,277 km (0.088 R)
• M11: 3,905,851 km (0.059 R)
• M12: 4,285,979 km (0.104 R)
• M13: 4,585,624 km (0.113 R)
• M14: 4,851,010 km (0.114 R)
• M15: 5,228,296 km (0.112 R)
• M16: 6,039,116 km (0.103 R)
• M17: 6,331,431 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.3

Radius: 12.2

Gravity: 6.4 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.95 AU - 1.19 AU

Year: 726 Days

Day: 12.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 71,981,184 km

• M1: 151,842 km (0.05 R)
• M2: 383,419 km (0.069 R)
• M3: 615,595 km (0.12 R)
• M4: 849,716 km (0.091 R)
• M5: 1,084,136 km (0.117 R)
• M6: 1,406,070 km (0.098 R)
• M7: 2,056,821 km (0.067 R)
• M8: 2,423,934 km (0.103 R)
• M9: 2,706,076 km (0.072 R)
• M10: 3,139,012 km (0.066 R)
• M11: 3,450,176 km (0.089 R)
• M12: 3,811,305 km (0.095 R)
• M13: 4,513,817 km (0.106 R)
• M14: 4,861,931 km (0.098 R)
• M15: 5,250,736 km (0.099 R)
• M16: 5,541,853 km (0.044 R)
• M17: 6,418,048 km (0.083 R)
• M18: 7,086,601 km (0.087 R)
• M19: 7,523,726 km (0.076 R)
• M20: 7,822,622 km (0.049 R)
• M21: 8,093,245 km (0.047 R)
• M22: 8,542,936 km (0.04 R)
• M23: 8,808,173 km (0.119 R)
• M24: 9,095,401 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 399

Radius: 9.9

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.72 AU - 1.86 AU

Year: 1571 Days

Day: 9.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 71,981,184 km

• M1: 138,079 km (0.066 R)
• M2: 429,495 km (0.098 R)
• M3: 651,200 km (0.093 R)
• M4: 1,202,916 km (0.103 R)
• M5: 1,592,918 km (0.071 R)
• M6: 1,814,772 km (0.055 R)
• M7: 2,325,349 km (0.036 R)
• M8: 3,301,625 km (0.115 R)
• M9: 3,586,310 km (0.057 R)
• M10: 3,949,234 km (0.106 R)
• M11: 4,442,458 km (0.104 R)
• M12: 4,729,387 km (0.085 R)
• M13: 5,822,349 km (0.09 R)
• M14: 6,068,138 km (0.084 R)
• M15: 6,268,600 km (0.084 R)
• M16: 6,472,202 km (0.069 R)
• M17: 7,031,698 km (0.039 R)
• M18: 7,430,077 km (0.049 R)
• M19: 7,877,225 km (0.09 R)
• M20: 8,125,109 km (0.118 R)
• M21: 9,094,204 km (0.06 R)
• M22: 10,118,650 km (0.06 R)
• M23: 10,399,745 km (0.112 R)
• M24: 11,040,921 km (0.116 R)
• M25: 11,266,515 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 401.7

Radius: 3.1

Gravity: 41.8 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 9.68 AU - 12.38 AU

Year: 24031 Days

Day: 22.5 Hours

Environment

Temp: -239 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 71,981,184 km

• M1: 39,195 km (0.05 R)
• M2: 153,637 km (0.063 R)
• M3: 621,280 km (0.071 R)
• M4: 743,651 km (0.085 R)
• M5: 1,273,227 km (0.072 R)
• M6: 1,880,296 km (0.093 R)
• M7: 1,997,132 km (0.117 R)
• M8: 2,117,707 km (0.086 R)
• M9: 2,191,758 km (0.046 R)
• M10: 2,635,615 km (0.07 R)
• M11: 4,286,727 km (0.06 R)
• M12: 8,209,034 km (0.109 R)
• M13: 8,502,545 km (0.074 R)
• M14: 10,813,383 km (0.099 R)
• M15: 13,589,321 km (0.108 R)
• M16: 14,542,259 km (0.104 R)
• M17: 16,752,568 km (0.058 R)
• M18: 19,943,341 km (0.116 R)
• M19: 22,039,207 km (0.071 R)
• M20: 22,842,099 km (0.083 R)
• M21: 23,249,005 km (0.084 R)
• M22: 25,081,729 km (0.041 R)
• M23: 27,160,690 km (0.071 R)
• M24: 31,757,833 km (0.043 R)
• M25: 31,853,426 km (0.037 R)
• M26: 33,402,811 km (0.1 R)
• M27: 33,993,274 km (0.068 R)
• M28: 34,888,767 km (0.101 R)
• M29: 36,202,685 km (0.09 R)
• M30: 37,645,107 km (0.086 R)
• M31: 40,506,316 km (0.1 R)
• M32: 42,141,122 km (0.106 R)
• M33: 44,824,309 km (0.108 R)
• M34: 45,966,788 km (0.069 R)
• M35: 51,528,987 km (0.106 R)
• M36: 51,650,909 km (0.105 R)
• M37: 52,507,506 km (0.096 R)
• M38: 55,877,647 km (0.072 R)
• M39: 60,402,384 km (0.079 R)
• M40: 61,994,405 km (0.045 R)
• M41: 63,877,842 km (0.059 R)
• M42: 68,429,058 km (0.03 R)
• M43: 68,850,475 km (0.078 R)
• M44: 70,407,191 km (0.113 R)
• M45: 70,977,458 km (0.08 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: 191 - 17,779 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit