🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.94

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.47 AU - 0.67 AU

Year: 282 Days

Day: 32.5 Hours

Environment

Temp: -116 °C

Axial Tilt: 15.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.03

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.52 AU - 0.82 AU

Year: 360 Days

Day: 28.9 Hours

Environment

Temp: -129 °C

Axial Tilt: 13.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 989.4

Radius: 11.1

Gravity: 8.03 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.86 AU - 0.94 AU

Year: 560 Days

Day: 8.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,723,378 km

• M1: 138,079 km (0.071 R)
• M2: 507,735 km (0.091 R)
• M3: 926,759 km (0.107 R)
• M4: 1,365,230 km (0.072 R)
• M5: 2,114,865 km (0.112 R)
• M6: 2,567,099 km (0.088 R)
• M7: 3,296,239 km (0.048 R)
• M8: 4,083,723 km (0.102 R)
• M9: 4,708,144 km (0.073 R)
• M10: 5,953,397 km (0.063 R)
• M11: 6,447,668 km (0.103 R)
• M12: 7,384,151 km (0.03 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 98.5

Radius: 10.7

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.93 AU - 1.03 AU

Year: 636 Days

Day: 11 Hours

Environment

Temp: -152 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 71,723,378 km

• M1: 133,142 km (0.099 R)
• M2: 759,508 km (0.029 R)
• M3: 1,260,960 km (0.07 R)
• M4: 1,791,883 km (0.112 R)
• M5: 2,266,857 km (0.061 R)
• M6: 2,879,609 km (0.112 R)
• M7: 3,255,848 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 741.9

Radius: 13.5

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.04 AU - 1.3 AU

Year: 830 Days

Day: 12.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 71,723,378 km

• M1: 174,431 km (0.117 R)
• M2: 752,328 km (0.064 R)
• M3: 1,178,981 km (0.097 R)
• M4: 1,862,793 km (0.077 R)
• M5: 2,297,524 km (0.111 R)
• M6: 3,137,965 km (0.071 R)
• M7: 3,895,977 km (0.09 R)
• M8: 5,333,912 km (0.103 R)
• M9: 5,797,965 km (0.111 R)
• M10: 6,394,860 km (0.078 R)
• M11: 6,987,118 km (0.065 R)
• M12: 7,615,878 km (0.029 R)
• M13: 8,307,469 km (0.107 R)
• M14: 8,906,608 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 917

Radius: 10.2

Gravity: 8.81 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.85 AU - 2.01 AU

Year: 1759 Days

Day: 8.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 142.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 71,723,378 km

• M1: 127,757 km (0.08 R)
• M2: 545,135 km (0.116 R)
• M3: 946,955 km (0.047 R)
• M4: 1,346,082 km (0.065 R)
• M5: 1,857,407 km (0.08 R)
• M6: 2,284,359 km (0.115 R)
• M7: 2,703,832 km (0.098 R)
• M8: 3,337,828 km (0.054 R)
• M9: 3,789,314 km (0.08 R)
• M10: 4,241,848 km (0.077 R)
• M11: 4,646,360 km (0.118 R)
• M12: 5,723,465 km (0.094 R)
• M13: 6,398,301 km (0.114 R)
• M14: 7,817,087 km (0.09 R)
• M15: 8,584,524 km (0.089 R)
• M16: 11,418,656 km (0.113 R)
• M17: 12,004,631 km (0.119 R)
• M18: 12,365,610 km (0.099 R)
• M19: 12,983,749 km (0.081 R)
• M20: 13,321,690 km (0.117 R)
• M21: 14,192,350 km (0.109 R)
• M22: 14,915,805 km (0.105 R)
• M23: 16,192,174 km (0.065 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 791.8

Radius: 10.1

Gravity: 7.76 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 3.34 AU - 3.78 AU

Year: 4406 Days

Day: 7.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 71,723,378 km

• M1: 125,812 km (0.088 R)
• M2: 442,959 km (0.12 R)
• M3: 924,515 km (0.088 R)
• M4: 1,358,498 km (0.106 R)
• M5: 1,679,685 km (0.046 R)
• M6: 2,023,910 km (0.113 R)
• M7: 2,383,692 km (0.119 R)
• M8: 3,079,622 km (0.056 R)
• M9: 4,394,886 km (0.104 R)
• M10: 5,273,923 km (0.043 R)
• M11: 5,843,293 km (0.057 R)
• M12: 6,938,200 km (0.049 R)
• M13: 7,981,046 km (0.104 R)
• M14: 9,529,833 km (0.081 R)
• M15: 10,996,341 km (0.076 R)
• M16: 14,589,084 km (0.073 R)
• M17: 15,312,240 km (0.118 R)
• M18: 16,709,633 km (0.089 R)
• M19: 17,687,255 km (0.076 R)
• M20: 18,253,783 km (0.109 R)
• M21: 27,423,683 km (0.079 R)
• M22: 27,759,381 km (0.076 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.8

Radius: 11.9

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 3.86 AU - 4.88 AU

Year: 5993 Days

Day: 8.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 71,723,378 km

• M1: 148,102 km (0.113 R)
• M2: 592,557 km (0.072 R)
• M3: 1,460,674 km (0.115 R)
• M4: 2,024,358 km (0.049 R)
• M5: 2,711,761 km (0.066 R)
• M6: 3,505,976 km (0.045 R)
• M7: 3,934,574 km (0.042 R)
• M8: 4,398,327 km (0.109 R)
• M9: 5,765,352 km (0.095 R)
• M10: 8,862,028 km (0.086 R)
• M11: 9,576,208 km (0.083 R)
• M12: 10,419,342 km (0.118 R)
• M13: 10,882,647 km (0.06 R)
• M14: 12,561,883 km (0.117 R)
• M15: 13,463,360 km (0.058 R)
• M16: 15,814,888 km (0.102 R)
• M17: 17,765,794 km (0.08 R)
• M18: 19,382,798 km (0.075 R)
• M19: 21,095,843 km (0.113 R)
• M20: 22,521,959 km (0.095 R)
• M21: 23,063,205 km (0.079 R)
• M22: 23,455,151 km (0.066 R)
• M23: 24,091,540 km (0.037 R)
• M24: 25,649,004 km (0.108 R)
• M25: 29,236,959 km (0.03 R)
• M26: 30,160,427 km (0.096 R)
• M27: 31,198,486 km (0.074 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 582.5

Radius: 7.6

Gravity: 10.08 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 8.84 AU - 10.58 AU

Year: 19849 Days

Day: 24.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 71,723,378 km

• M1: 94,546 km (0.091 R)
• M2: 356,193 km (0.098 R)
• M3: 617,540 km (0.117 R)
• M4: 878,140 km (0.115 R)
• M5: 1,310,328 km (0.059 R)
• M6: 1,859,651 km (0.081 R)
• M7: 2,312,035 km (0.1 R)
• M8: 4,246,186 km (0.071 R)
• M9: 4,509,029 km (0.043 R)
• M10: 6,196,194 km (0.038 R)
• M11: 9,101,983 km (0.108 R)
• M12: 9,992,839 km (0.108 R)
• M13: 10,638,204 km (0.093 R)
• M14: 11,001,727 km (0.068 R)
• M15: 17,248,485 km (0.053 R)
• M16: 18,262,160 km (0.099 R)
• M17: 19,584,605 km (0.061 R)
• M18: 21,254,267 km (0.083 R)
• M19: 23,830,492 km (0.119 R)
• M20: 25,300,441 km (0.092 R)
• M21: 27,730,957 km (0.102 R)
• M22: 32,668,285 km (0.107 R)
• M23: 34,217,072 km (0.091 R)
• M24: 39,013,180 km (0.093 R)
• M25: 40,315,280 km (0.119 R)
• M26: 42,095,943 km (0.094 R)
• M27: 50,761,101 km (0.051 R)
• M28: 52,311,982 km (0.073 R)
• M29: 54,966,596 km (0.056 R)
• M30: 56,969,412 km (0.045 R)
• M31: 61,701,492 km (0.118 R)
• M32: 62,874,938 km (0.114 R)
• M33: 65,670,623 km (0.072 R)
• M34: 69,385,587 km (0.108 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: 232 - 14,247 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit