🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.68

Radius: 1.48

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.53 AU - 0.81 AU

Year: 360 Days

Day: 30.5 Hours

Environment

Temp: -138 °C

Axial Tilt: 1.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 357.8

Radius: 14.2

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.7 AU - 0.94 AU

Year: 487 Days

Day: 6 Hours

Environment

Temp: -145 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,065,354 km

• M1: 176,675 km (0.103 R)
• M2: 706,102 km (0.115 R)
• M3: 1,213,388 km (0.099 R)
• M4: 1,665,323 km (0.077 R)
• M5: 2,563,509 km (0.118 R)
• M6: 3,306,263 km (0.116 R)
• M7: 3,948,187 km (0.09 R)
• M8: 4,644,715 km (0.099 R)
• M9: 5,148,710 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.4

Radius: 13.2

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.01 AU - 1.51 AU

Year: 928 Days

Day: 10.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 65,065,354 km

• M1: 164,258 km (0.092 R)
• M2: 798,254 km (0.097 R)
• M3: 1,415,944 km (0.092 R)
• M4: 1,921,435 km (0.085 R)
• M5: 2,409,573 km (0.105 R)
• M6: 3,420,256 km (0.109 R)
• M7: 4,015,207 km (0.118 R)
• M8: 4,589,363 km (0.086 R)
• M9: 5,122,081 km (0.077 R)
• M10: 5,736,929 km (0.105 R)
• M11: 6,512,594 km (0.101 R)
• M12: 7,043,816 km (0.066 R)
• M13: 7,959,504 km (0.03 R)
• M14: 8,897,184 km (0.114 R)
• M15: 9,699,328 km (0.119 R)
• M16: 10,517,927 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.6

Radius: 13.3

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.32 AU - 1.48 AU

Year: 1087 Days

Day: 9.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 65,065,354 km

• M1: 165,455 km (0.095 R)
• M2: 686,355 km (0.088 R)
• M3: 1,248,394 km (0.037 R)
• M4: 1,913,955 km (0.119 R)
• M5: 2,502,024 km (0.106 R)
• M6: 3,071,244 km (0.069 R)
• M7: 3,588,105 km (0.115 R)
• M8: 4,706,349 km (0.061 R)
• M9: 5,198,526 km (0.061 R)
• M10: 5,662,579 km (0.05 R)
• M11: 6,376,759 km (0.091 R)
• M12: 6,933,413 km (0.063 R)
• M13: 8,998,761 km (0.05 R)
• M14: 11,048,700 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.6

Radius: 10.6

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.79 AU - 2.55 AU

Year: 2097 Days

Day: 14.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,065,354 km

• M1: 131,945 km (0.106 R)
• M2: 574,306 km (0.101 R)
• M3: 1,411,755 km (0.105 R)
• M4: 1,960,480 km (0.057 R)
• M5: 2,291,241 km (0.12 R)
• M6: 3,517,644 km (0.113 R)
• M7: 5,605,582 km (0.119 R)
• M8: 5,947,563 km (0.093 R)
• M9: 7,356,625 km (0.119 R)
• M10: 8,890,601 km (0.082 R)
• M11: 9,416,588 km (0.117 R)
• M12: 10,371,022 km (0.093 R)
• M13: 10,987,216 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.4

Radius: 15

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 2.6 AU - 2.96 AU

Year: 3041 Days

Day: 10.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,065,354 km

• M1: 186,549 km (0.118 R)
• M2: 811,120 km (0.108 R)
• M3: 1,379,442 km (0.091 R)
• M4: 2,015,083 km (0.096 R)
• M5: 2,585,799 km (0.119 R)
• M6: 3,413,973 km (0.091 R)
• M7: 4,168,694 km (0.105 R)
• M8: 6,475,344 km (0.068 R)
• M9: 8,110,149 km (0.076 R)
• M10: 9,612,710 km (0.114 R)
• M11: 10,085,888 km (0.092 R)
• M12: 12,504,288 km (0.117 R)
• M13: 14,658,946 km (0.042 R)
• M14: 17,454,780 km (0.112 R)
• M15: 21,712,785 km (0.105 R)
• M16: 23,156,554 km (0.099 R)
• M17: 23,651,723 km (0.04 R)
• M18: 24,226,328 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 760.1

Radius: 11.4

Gravity: 5.85 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 2.66 AU - 2.92 AU

Year: 3057 Days

Day: 11.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 65,065,354 km

• M1: 141,819 km (0.059 R)
• M2: 733,927 km (0.087 R)
• M3: 1,369,718 km (0.106 R)
• M4: 1,859,651 km (0.101 R)
• M5: 2,601,208 km (0.062 R)
• M6: 3,288,311 km (0.09 R)
• M7: 3,885,356 km (0.076 R)
• M8: 4,329,811 km (0.08 R)
• M9: 5,296,513 km (0.117 R)
• M10: 5,657,791 km (0.061 R)
• M11: 6,401,592 km (0.077 R)
• M12: 6,932,814 km (0.094 R)
• M13: 8,016,651 km (0.1 R)
• M14: 8,991,281 km (0.101 R)
• M15: 9,544,943 km (0.071 R)
• M16: 13,933,396 km (0.109 R)
• M17: 15,653,472 km (0.106 R)
• M18: 17,853,159 km (0.065 R)
• M19: 20,629,098 km (0.077 R)
• M20: 21,333,255 km (0.115 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.1

Radius: 8.8

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 3.38 AU - 4.88 AU

Year: 5506 Days

Day: 10 Hours

Environment

Temp: -203 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 65,065,354 km

• M1: 109,506 km (0.094 R)
• M2: 414,386 km (0.111 R)
• M3: 1,525,150 km (0.073 R)
• M4: 1,812,977 km (0.096 R)
• M5: 3,067,953 km (0.037 R)
• M6: 3,511,960 km (0.07 R)
• M7: 3,867,404 km (0.105 R)
• M8: 5,132,105 km (0.102 R)
• M9: 5,563,246 km (0.084 R)
• M10: 6,406,080 km (0.08 R)
• M11: 7,035,289 km (0.115 R)
• M12: 7,670,631 km (0.106 R)
• M13: 7,949,332 km (0.064 R)
• M14: 9,367,071 km (0.11 R)
• M15: 9,685,864 km (0.094 R)
• M16: 10,094,416 km (0.077 R)
• M17: 13,434,637 km (0.067 R)
• M18: 14,306,792 km (0.094 R)
• M19: 16,334,741 km (0.033 R)
• M20: 19,627,689 km (0.114 R)
• M21: 19,953,364 km (0.063 R)
• M22: 21,087,615 km (0.106 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 694.1

Radius: 3.1

Gravity: 72.23 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 5.59 AU - 7.43 AU

Year: 10896 Days

Day: 18.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 65,065,354 km

• M1: 38,596 km (0.094 R)
• M2: 166,652 km (0.094 R)
• M3: 297,700 km (0.111 R)
• M4: 490,382 km (0.1 R)
• M5: 588,368 km (0.1 R)
• M6: 769,531 km (0.098 R)
• M7: 893,249 km (0.119 R)
• M8: 1,180,926 km (0.11 R)
• M9: 1,526,945 km (0.108 R)
• M10: 2,076,269 km (0.09 R)
• M11: 2,922,993 km (0.086 R)
• M12: 3,154,271 km (0.072 R)
• M13: 3,679,509 km (0.114 R)
• M14: 3,812,651 km (0.1 R)
• M15: 4,319,040 km (0.106 R)
• M16: 5,395,247 km (0.106 R)
• M17: 6,521,570 km (0.086 R)
• M18: 8,060,034 km (0.088 R)
• M19: 9,080,890 km (0.113 R)
• M20: 9,622,285 km (0.115 R)
• M21: 10,394,808 km (0.057 R)
• M22: 13,644,373 km (0.09 R)
• M23: 15,566,556 km (0.103 R)
• M24: 17,964,610 km (0.068 R)
• M25: 18,737,133 km (0.107 R)
• M26: 20,183,146 km (0.032 R)
• M27: 20,514,206 km (0.077 R)
• M28: 21,102,425 km (0.074 R)
• M29: 22,049,230 km (0.114 R)
• M30: 30,773,928 km (0.092 R)
• M31: 34,753,530 km (0.114 R)
• M32: 35,229,102 km (0.056 R)
• M33: 39,447,762 km (0.098 R)
• M34: 39,705,818 km (0.085 R)
• M35: 41,145,847 km (0.036 R)
• M36: 43,301,852 km (0.087 R)
• M37: 46,101,127 km (0.106 R)
• M38: 47,837,360 km (0.117 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 467.3

Radius: 6

Gravity: 12.98 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 9.32 AU - 9.64 AU

Year: 19148 Days

Day: 24.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 65,065,354 km

• M1: 74,649 km (0.096 R)
• M2: 377,286 km (0.1 R)
• M3: 676,482 km (0.095 R)
• M4: 1,203,814 km (0.091 R)
• M5: 1,486,105 km (0.05 R)
• M6: 1,846,935 km (0.065 R)
• M7: 2,347,041 km (0.096 R)
• M8: 4,049,614 km (0.108 R)
• M9: 6,525,160 km (0.105 R)
• M10: 7,909,539 km (0.093 R)
• M11: 8,247,331 km (0.088 R)
• M12: 9,107,818 km (0.093 R)
• M13: 9,750,191 km (0.082 R)
• M14: 10,769,850 km (0.074 R)
• M15: 13,219,814 km (0.12 R)
• M16: 14,609,728 km (0.076 R)
• M17: 15,118,361 km (0.086 R)
• M18: 15,941,448 km (0.06 R)
• M19: 22,175,940 km (0.112 R)
• M20: 23,631,676 km (0.037 R)
• M21: 24,636,825 km (0.057 R)
• M22: 27,822,960 km (0.08 R)
• M23: 28,379,314 km (0.087 R)
• M24: 29,860,782 km (0.094 R)
• M25: 31,633,367 km (0.09 R)
• M26: 31,995,993 km (0.087 R)
• M27: 32,606,801 km (0.052 R)
• M28: 32,976,906 km (0.067 R)
• M29: 35,256,927 km (0.093 R)
• M30: 36,568,003 km (0.068 R)
• M31: 40,411,172 km (0.088 R)
• M32: 44,666,633 km (0.118 R)
• M33: 48,087,338 km (0.083 R)
• M34: 48,727,617 km (0.113 R)
• M35: 50,352,848 km (0.056 R)
• M36: 54,227,283 km (0.114 R)
• M37: 59,023,690 km (0.106 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 450 - 12,238 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit