🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.34

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.53 AU - 0.59 AU

Year: 149 Days

Day: 24.3 Hours

Environment

Temp: 248 °C

Axial Tilt: 32 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.35 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.39

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.03 AU - 1.67 AU

Year: 556 Days

Day: 12.5 Hours

Environment

Temp: 5 °C

Axial Tilt: 13.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 69,034,931 km

• M1: 188,045 km (0.104 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.53

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 1.49 AU - 1.99 AU

Year: 814 Days

Day: 24.7 Hours

Environment

Temp: -44 °C

Axial Tilt: 17.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 8.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.4

Radius: 14.4

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 6.89 AU - 9.99 AU

Year: 8699 Days

Day: 11.6 Hours

Environment

Temp: -158 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 69,034,931 km

• M1: 179,218 km (0.069 R)
• M2: 629,657 km (0.098 R)
• M3: 1,095,356 km (0.072 R)
• M4: 1,720,226 km (0.074 R)
• M5: 2,225,418 km (0.064 R)
• M6: 3,383,006 km (0.111 R)
• M7: 3,832,249 km (0.052 R)
• M8: 4,737,465 km (0.037 R)
• M9: 6,678,498 km (0.114 R)
• M10: 7,867,950 km (0.105 R)
• M11: 8,364,765 km (0.098 R)
• M12: 8,838,541 km (0.074 R)
• M13: 9,330,270 km (0.081 R)
• M14: 10,665,131 km (0.117 R)
• M15: 11,120,358 km (0.101 R)
• M16: 14,433,801 km (0.111 R)
• M17: 15,307,453 km (0.06 R)
• M18: 18,213,092 km (0.098 R)
• M19: 19,382,499 km (0.05 R)
• M20: 22,607,380 km (0.09 R)
• M21: 23,276,082 km (0.067 R)
• M22: 24,043,968 km (0.093 R)
• M23: 32,573,590 km (0.099 R)
• M24: 36,303,813 km (0.043 R)
• M25: 37,802,335 km (0.11 R)

Planet 5 - Ice Giant

Semi-Major Axis: 18.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 708.2

Radius: 6.1

Gravity: 19.03 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 16.46 AU - 20.94 AU

Year: 28688 Days

Day: 24.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 69,034,931 km

• M1: 75,846 km (0.118 R)
• M2: 361,728 km (0.109 R)
• M3: 823,387 km (0.08 R)
• M4: 1,659,340 km (0.051 R)
• M5: 1,979,180 km (0.095 R)
• M6: 2,292,139 km (0.112 R)
• M7: 2,988,816 km (0.025 R)
• M8: 4,599,985 km (0.079 R)
• M9: 4,948,847 km (0.096 R)
• M10: 5,191,046 km (0.074 R)
• M11: 6,428,071 km (0.068 R)
• M12: 9,347,324 km (0.028 R)
• M13: 11,300,174 km (0.057 R)
• M14: 11,509,312 km (0.08 R)
• M15: 12,225,288 km (0.046 R)
• M16: 16,433,027 km (0.035 R)
• M17: 19,351,981 km (0.03 R)
• M18: 20,260,189 km (0.093 R)
• M19: 24,876,480 km (0.11 R)
• M20: 26,558,708 km (0.112 R)
• M21: 29,748,733 km (0.115 R)
• M22: 30,550,578 km (0.072 R)
• M23: 32,337,375 km (0.11 R)
• M24: 37,183,897 km (0.113 R)
• M25: 52,040,312 km (0.109 R)
• M26: 56,187,763 km (0.08 R)
• M27: 57,206,675 km (0.041 R)
• M28: 59,071,711 km (0.101 R)
• M29: 65,356,767 km (0.077 R)
• M30: 67,165,854 km (0.112 R)
• M31: 74,981,594 km (0.071 R)
• M32: 78,219,790 km (0.056 R)
• M33: 80,258,210 km (0.03 R)
• M34: 80,515,519 km (0.102 R)
• M35: 83,118,522 km (0.096 R)
• M36: 86,856,225 km (0.113 R)
• M37: 87,944,399 km (0.091 R)
• M38: 96,396,829 km (0.119 R)

Planet 6 - Ice Giant

Semi-Major Axis: 18.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 823

Radius: 6.1

Gravity: 22.12 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 15.52 AU - 22.16 AU

Year: 29011 Days

Day: 24.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 69,034,931 km

• M1: 83,476 km (0.094 R)
• M2: 404,812 km (0.054 R)
• M3: 731,683 km (0.03 R)
• M4: 2,003,415 km (0.102 R)
• M5: 2,900,404 km (0.062 R)
• M6: 3,730,821 km (0.079 R)
• M7: 4,478,661 km (0.1 R)
• M8: 8,253,464 km (0.073 R)
• M9: 8,719,611 km (0.119 R)
• M10: 10,223,369 km (0.118 R)
• M11: 11,965,436 km (0.059 R)
• M12: 12,562,332 km (0.054 R)
• M13: 12,945,302 km (0.118 R)
• M14: 13,336,052 km (0.057 R)
• M15: 14,388,772 km (0.116 R)
• M16: 16,476,111 km (0.103 R)
• M17: 16,750,474 km (0.108 R)
• M18: 17,027,828 km (0.08 R)
• M19: 17,782,549 km (0.11 R)
• M20: 19,561,866 km (0.084 R)
• M21: 21,240,205 km (0.089 R)
• M22: 24,404,200 km (0.056 R)
• M23: 24,760,841 km (0.06 R)
• M24: 25,000,497 km (0.045 R)
• M25: 25,728,739 km (0.106 R)
• M26: 27,998,438 km (0.091 R)
• M27: 30,672,949 km (0.096 R)
• M28: 31,088,382 km (0.12 R)
• M29: 32,071,988 km (0.115 R)
• M30: 34,996,776 km (0.101 R)
• M31: 40,867,296 km (0.086 R)
• M32: 42,903,772 km (0.045 R)
• M33: 47,916,348 km (0.103 R)
• M34: 50,370,949 km (0.116 R)
• M35: 50,563,183 km (0.078 R)
• M36: 56,559,664 km (0.111 R)
• M37: 58,023,928 km (0.088 R)
• M38: 64,586,487 km (0.068 R)
• M39: 65,268,803 km (0.112 R)
• M40: 70,179,652 km (0.088 R)
• M41: 76,593,811 km (0.03 R)
• M42: 94,314,576 km (0.074 R)

Planet 7 - Ice Giant

Semi-Major Axis: 19.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 235.2

Radius: 3.6

Gravity: 18.15 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 14.34 AU - 23.76 AU

Year: 29497 Days

Day: 19.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,034,931 km

• M1: 44,879 km (0.048 R)
• M2: 255,064 km (0.104 R)
• M3: 674,537 km (0.1 R)
• M4: 851,810 km (0.057 R)
• M5: 2,242,472 km (0.118 R)
• M6: 3,511,062 km (0.089 R)
• M7: 4,526,682 km (0.116 R)
• M8: 5,340,794 km (0.093 R)
• M9: 5,645,524 km (0.066 R)
• M10: 6,847,992 km (0.063 R)
• M11: 8,668,598 km (0.052 R)
• M12: 8,824,629 km (0.082 R)
• M13: 10,374,014 km (0.084 R)
• M14: 16,888,104 km (0.059 R)
• M15: 22,708,658 km (0.065 R)
• M16: 25,581,236 km (0.098 R)
• M17: 26,993,589 km (0.117 R)
• M18: 36,708,924 km (0.079 R)
• M19: 38,643,075 km (0.115 R)
• M20: 44,851,237 km (0.119 R)
• M21: 54,647,205 km (0.091 R)
• M22: 59,008,581 km (0.089 R)

Kuiper Belt

Range: 30.9 - 60.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 529 - 12,613 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit