🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.21

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.76 AU - 1.04 AU

Year: 318 Days

Day: 18.6 Hours

Environment

Temp: 40 °C

Axial Tilt: 8.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.43

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 2.46 AU - 3.76 AU

Year: 2045 Days

Day: 25.4 Hours

Environment

Temp: -107 °C

Axial Tilt: 2.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,475,995 km

• M1: 42,187 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 10.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.1

Radius: 11.7

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 9.58 AU - 11.98 AU

Year: 13194 Days

Day: 6.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 60,475,995 km

• M1: 145,708 km (0.104 R)
• M2: 518,357 km (0.074 R)
• M3: 939,475 km (0.095 R)
• M4: 3,265,722 km (0.112 R)
• M5: 4,121,721 km (0.108 R)
• M6: 4,842,184 km (0.088 R)
• M7: 6,203,674 km (0.117 R)
• M8: 7,555,440 km (0.106 R)
• M9: 11,753,905 km (0.114 R)
• M10: 13,688,205 km (0.088 R)
• M11: 14,187,413 km (0.083 R)
• M12: 15,422,044 km (0.069 R)
• M13: 16,099,872 km (0.094 R)
• M14: 17,153,789 km (0.079 R)
• M15: 17,881,583 km (0.044 R)
• M16: 20,029,210 km (0.109 R)
• M17: 22,774,780 km (0.099 R)
• M18: 31,738,086 km (0.112 R)
• M19: 35,805,054 km (0.12 R)
• M20: 38,701,418 km (0.071 R)
• M21: 46,479,310 km (0.117 R)

Planet 4 - Ice Giant

Semi-Major Axis: 13.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 502.8

Radius: 6.4

Gravity: 12.28 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 12.1 AU - 15.36 AU

Year: 18965 Days

Day: 18.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 60,475,995 km

• M1: 79,586 km (0.067 R)
• M2: 616,942 km (0.081 R)
• M3: 863,778 km (0.1 R)
• M4: 1,256,024 km (0.117 R)
• M5: 1,627,475 km (0.117 R)
• M6: 1,830,629 km (0.086 R)
• M7: 2,351,080 km (0.105 R)
• M8: 2,589,539 km (0.082 R)
• M9: 2,868,240 km (0.052 R)
• M10: 3,739,199 km (0.103 R)
• M11: 3,944,597 km (0.1 R)
• M12: 4,219,857 km (0.076 R)
• M13: 5,340,494 km (0.035 R)
• M14: 8,008,124 km (0.088 R)
• M15: 8,601,279 km (0.101 R)
• M16: 9,276,564 km (0.099 R)
• M17: 9,819,455 km (0.062 R)
• M18: 11,514,099 km (0.105 R)
• M19: 12,333,596 km (0.072 R)
• M20: 13,326,627 km (0.082 R)
• M21: 15,321,365 km (0.119 R)
• M22: 18,000,813 km (0.033 R)
• M23: 19,276,284 km (0.11 R)
• M24: 20,429,534 km (0.071 R)
• M25: 21,254,566 km (0.072 R)
• M26: 21,628,112 km (0.094 R)
• M27: 22,581,499 km (0.113 R)
• M28: 22,970,603 km (0.074 R)
• M29: 23,862,356 km (0.096 R)
• M30: 24,776,998 km (0.074 R)
• M31: 25,399,624 km (0.101 R)
• M32: 41,436,815 km (0.08 R)
• M33: 46,412,739 km (0.104 R)
• M34: 58,256,403 km (0.079 R)

Planet 5 - Ice Giant

Semi-Major Axis: 17.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 691.7

Radius: 4.1

Gravity: 41.15 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 15.78 AU - 18.44 AU

Year: 26383 Days

Day: 15 Hours

Environment

Temp: -203 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 60,475,995 km

• M1: 51,910 km (0.091 R)
• M2: 213,626 km (0.05 R)
• M3: 399,426 km (0.077 R)
• M4: 568,472 km (0.087 R)
• M5: 752,627 km (0.057 R)
• M6: 937,829 km (0.099 R)
• M7: 1,417,141 km (0.103 R)
• M8: 1,837,211 km (0.116 R)
• M9: 2,312,334 km (0.114 R)
• M10: 2,503,969 km (0.11 R)
• M11: 3,114,777 km (0.116 R)
• M12: 4,226,289 km (0.107 R)
• M13: 7,975,212 km (0.108 R)
• M14: 11,248,862 km (0.108 R)
• M15: 12,732,125 km (0.113 R)
• M16: 13,330,068 km (0.116 R)
• M17: 13,558,953 km (0.076 R)
• M18: 15,485,923 km (0.116 R)
• M19: 19,675,112 km (0.095 R)
• M20: 22,455,089 km (0.072 R)
• M21: 25,838,694 km (0.119 R)
• M22: 26,553,772 km (0.113 R)
• M23: 30,328,575 km (0.098 R)
• M24: 31,527,153 km (0.111 R)
• M25: 36,488,566 km (0.093 R)
• M26: 41,782,685 km (0.083 R)
• M27: 42,273,067 km (0.06 R)
• M28: 43,432,002 km (0.069 R)
• M29: 44,612,030 km (0.114 R)
• M30: 45,986,535 km (0.069 R)
• M31: 48,819,919 km (0.11 R)
• M32: 53,476,302 km (0.107 R)
• M33: 60,688,565 km (0.069 R)
• M34: 61,738,892 km (0.087 R)
• M35: 62,162,403 km (0.059 R)
• M36: 63,659,878 km (0.071 R)
• M37: 68,296,215 km (0.09 R)
• M38: 71,508,979 km (0.11 R)
• M39: 75,302,482 km (0.117 R)
• M40: 78,978,700 km (0.072 R)
• M41: 86,157,453 km (0.088 R)
• M42: 91,268,763 km (0.087 R)

Planet 6 - Ice Giant

Semi-Major Axis: 18.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 187.3

Radius: 5.7

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 15.3 AU - 21.4 AU

Year: 29303 Days

Day: 20.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 60,475,995 km

• M1: 71,807 km (0.099 R)
• M2: 298,747 km (0.105 R)
• M3: 757,713 km (0.075 R)
• M4: 1,467,854 km (0.116 R)
• M5: 1,806,245 km (0.109 R)
• M6: 2,528,204 km (0.051 R)
• M7: 3,015,295 km (0.056 R)
• M8: 8,364,167 km (0.114 R)
• M9: 8,562,085 km (0.043 R)
• M10: 9,544,793 km (0.106 R)
• M11: 10,658,399 km (0.082 R)
• M12: 14,162,879 km (0.068 R)
• M13: 20,794,702 km (0.06 R)
• M14: 21,618,687 km (0.06 R)
• M15: 22,559,508 km (0.118 R)
• M16: 25,132,891 km (0.055 R)
• M17: 33,143,857 km (0.097 R)
• M18: 42,265,288 km (0.114 R)
• M19: 43,882,291 km (0.067 R)
• M20: 47,709,903 km (0.101 R)
• M21: 48,501,126 km (0.113 R)
• M22: 49,785,423 km (0.105 R)
• M23: 55,149,554 km (0.117 R)
• M24: 56,021,111 km (0.069 R)

Planet 7 - Ice Giant

Semi-Major Axis: 19.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 139

Radius: 4.4

Gravity: 7.18 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 17.59 AU - 20.89 AU

Year: 31460 Days

Day: 23.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 60,475,995 km

• M1: 54,753 km (0.038 R)
• M2: 266,883 km (0.057 R)
• M3: 1,621,641 km (0.116 R)
• M4: 1,997,730 km (0.051 R)
• M5: 2,429,469 km (0.042 R)
• M6: 4,158,372 km (0.081 R)
• M7: 4,311,111 km (0.081 R)
• M8: 6,012,937 km (0.09 R)
• M9: 7,607,351 km (0.037 R)
• M10: 10,107,281 km (0.057 R)
• M11: 10,272,736 km (0.08 R)
• M12: 12,846,418 km (0.113 R)
• M13: 13,171,045 km (0.115 R)
• M14: 14,109,174 km (0.112 R)
• M15: 14,315,918 km (0.037 R)
• M16: 15,234,898 km (0.077 R)
• M17: 16,724,593 km (0.114 R)
• M18: 19,305,605 km (0.028 R)
• M19: 19,731,510 km (0.083 R)
• M20: 25,443,157 km (0.031 R)
• M21: 25,852,008 km (0.114 R)
• M22: 27,746,665 km (0.095 R)
• M23: 28,071,143 km (0.094 R)
• M24: 28,507,819 km (0.049 R)
• M25: 30,071,566 km (0.064 R)
• M26: 35,230,897 km (0.069 R)
• M27: 46,493,073 km (0.075 R)
• M28: 47,875,358 km (0.084 R)
• M29: 55,029,278 km (0.073 R)
• M30: 55,370,361 km (0.095 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 351 - 11,662 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit