🌌 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: 4.29

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.43 AU - 0.61 AU

Year: 242 Days

Day: 40.1 Hours

Environment

Temp: -113 °C

Axial Tilt: 26 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.5

Radius: 11.5

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.71 AU - 0.75 AU

Year: 403 Days

Day: 10.6 Hours

Environment

Temp: -145 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 65,956,956 km

• M1: 143,016 km (0.114 R)
• M2: 533,616 km (0.102 R)
• M3: 943,514 km (0.049 R)
• M4: 2,108,732 km (0.078 R)
• M5: 2,835,029 km (0.113 R)
• M6: 3,246,423 km (0.106 R)
• M7: 3,615,781 km (0.025 R)
• M8: 4,294,506 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 771.5

Radius: 11.3

Gravity: 6.04 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.8 AU - 0.88 AU

Year: 497 Days

Day: 7.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 65,956,956 km

• M1: 140,472 km (0.099 R)
• M2: 633,098 km (0.093 R)
• M3: 1,428,660 km (0.056 R)
• M4: 1,970,354 km (0.087 R)
• M5: 2,356,765 km (0.102 R)
• M6: 2,892,325 km (0.104 R)
• M7: 3,334,088 km (0.082 R)
• M8: 4,166,301 km (0.107 R)
• M9: 4,593,552 km (0.103 R)
• M10: 6,147,126 km (0.069 R)
• M11: 6,643,641 km (0.056 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981.5

Radius: 8.1

Gravity: 14.96 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.1 AU - 1.76 AU

Year: 1104 Days

Day: 12 Hours

Environment

Temp: -176 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 65,956,956 km

• M1: 100,829 km (0.066 R)
• M2: 508,782 km (0.072 R)
• M3: 826,827 km (0.095 R)
• M4: 1,195,137 km (0.073 R)
• M5: 1,896,003 km (0.074 R)
• M6: 2,495,292 km (0.101 R)
• M7: 3,811,006 km (0.044 R)
• M8: 5,263,601 km (0.094 R)
• M9: 5,798,713 km (0.111 R)
• M10: 6,229,255 km (0.074 R)
• M11: 6,560,016 km (0.092 R)
• M12: 7,308,454 km (0.076 R)
• M13: 7,649,986 km (0.106 R)
• M14: 8,826,723 km (0.08 R)
• M15: 10,346,937 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 407.5

Radius: 12.9

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 3.88 AU - 5.5 AU

Year: 6558 Days

Day: 6.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 65,956,956 km

• M1: 160,967 km (0.079 R)
• M2: 563,386 km (0.118 R)
• M3: 1,070,971 km (0.088 R)
• M4: 1,549,236 km (0.089 R)
• M5: 2,467,617 km (0.116 R)
• M6: 2,882,153 km (0.115 R)
• M7: 4,666,855 km (0.085 R)
• M8: 6,764,217 km (0.108 R)
• M9: 7,444,439 km (0.115 R)
• M10: 8,511,520 km (0.093 R)
• M11: 9,305,137 km (0.094 R)
• M12: 10,147,373 km (0.098 R)
• M13: 13,084,129 km (0.086 R)
• M14: 16,009,515 km (0.105 R)
• M15: 17,343,031 km (0.112 R)
• M16: 17,909,558 km (0.078 R)
• M17: 18,881,046 km (0.109 R)
• M18: 20,092,789 km (0.098 R)
• M19: 21,212,828 km (0.116 R)
• M20: 24,116,972 km (0.055 R)
• M21: 26,194,438 km (0.11 R)
• M22: 28,043,318 km (0.116 R)
• M23: 28,562,422 km (0.085 R)
• M24: 29,087,810 km (0.071 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 332.4

Radius: 6.2

Gravity: 8.65 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 5.19 AU - 7.07 AU

Year: 9800 Days

Day: 21.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 65,956,956 km

• M1: 77,940 km (0.096 R)
• M2: 589,715 km (0.102 R)
• M3: 1,078,451 km (0.112 R)
• M4: 1,694,495 km (0.104 R)
• M5: 3,593,341 km (0.045 R)
• M6: 4,629,755 km (0.066 R)
• M7: 5,566,986 km (0.065 R)
• M8: 5,819,806 km (0.111 R)
• M9: 6,014,433 km (0.086 R)
• M10: 6,213,398 km (0.089 R)
• M11: 6,451,109 km (0.101 R)
• M12: 6,908,878 km (0.086 R)
• M13: 8,047,318 km (0.09 R)
• M14: 10,738,734 km (0.077 R)
• M15: 10,982,877 km (0.084 R)
• M16: 11,180,945 km (0.114 R)
• M17: 12,526,428 km (0.097 R)
• M18: 12,742,597 km (0.104 R)
• M19: 14,209,255 km (0.12 R)
• M20: 14,444,422 km (0.045 R)
• M21: 15,784,819 km (0.082 R)
• M22: 16,037,041 km (0.072 R)
• M23: 17,205,999 km (0.113 R)
• M24: 20,078,727 km (0.097 R)
• M25: 26,220,468 km (0.118 R)
• M26: 28,300,177 km (0.051 R)
• M27: 36,388,186 km (0.117 R)
• M28: 37,161,607 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 501.3

Radius: 5.7

Gravity: 15.43 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 6.22 AU - 7.54 AU

Year: 11652 Days

Day: 15.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 65,956,956 km

• M1: 71,209 km (0.065 R)
• M2: 252,222 km (0.098 R)
• M3: 494,571 km (0.116 R)
• M4: 722,857 km (0.118 R)
• M5: 910,303 km (0.066 R)
• M6: 1,439,281 km (0.08 R)
• M7: 1,665,323 km (0.078 R)
• M8: 1,981,274 km (0.07 R)
• M9: 2,374,268 km (0.077 R)
• M10: 2,754,097 km (0.073 R)
• M11: 7,802,127 km (0.045 R)
• M12: 8,147,549 km (0.114 R)
• M13: 8,776,608 km (0.109 R)
• M14: 9,150,303 km (0.073 R)
• M15: 9,879,593 km (0.11 R)
• M16: 12,012,859 km (0.071 R)
• M17: 14,179,335 km (0.104 R)
• M18: 15,087,843 km (0.081 R)
• M19: 16,242,589 km (0.11 R)
• M20: 17,020,348 km (0.069 R)
• M21: 17,748,740 km (0.116 R)
• M22: 20,380,915 km (0.063 R)
• M23: 22,044,892 km (0.069 R)
• M24: 22,997,681 km (0.099 R)
• M25: 28,479,096 km (0.102 R)
• M26: 31,956,200 km (0.113 R)
• M27: 37,018,442 km (0.114 R)
• M28: 37,992,773 km (0.025 R)
• M29: 38,486,296 km (0.072 R)
• M30: 42,855,601 km (0.093 R)
• M31: 44,609,935 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 912.6

Radius: 3.2

Gravity: 89.12 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 6.32 AU - 8.42 AU

Year: 12919 Days

Day: 21.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 65,956,956 km

• M1: 40,691 km (0.046 R)
• M2: 204,051 km (0.106 R)
• M3: 800,498 km (0.088 R)
• M4: 936,931 km (0.103 R)
• M5: 1,040,304 km (0.084 R)
• M6: 1,229,844 km (0.104 R)
• M7: 1,368,671 km (0.083 R)
• M8: 1,533,378 km (0.108 R)
• M9: 2,088,536 km (0.11 R)
• M10: 2,246,062 km (0.103 R)
• M11: 2,860,610 km (0.08 R)
• M12: 3,155,617 km (0.079 R)
• M13: 4,193,079 km (0.09 R)
• M14: 4,380,525 km (0.095 R)
• M15: 4,805,532 km (0.043 R)
• M16: 6,698,095 km (0.088 R)
• M17: 7,715,211 km (0.056 R)
• M18: 9,506,795 km (0.1 R)
• M19: 9,830,076 km (0.034 R)
• M20: 10,272,587 km (0.032 R)
• M21: 10,555,775 km (0.105 R)
• M22: 10,902,394 km (0.11 R)
• M23: 11,376,320 km (0.081 R)
• M24: 13,209,642 km (0.101 R)
• M25: 13,612,209 km (0.112 R)
• M26: 15,897,616 km (0.114 R)
• M27: 16,276,398 km (0.116 R)
• M28: 24,262,082 km (0.041 R)
• M29: 27,811,591 km (0.075 R)
• M30: 27,920,947 km (0.057 R)
• M31: 28,140,556 km (0.028 R)
• M32: 29,368,605 km (0.114 R)
• M33: 29,938,423 km (0.109 R)
• M34: 39,254,780 km (0.087 R)
• M35: 40,085,198 km (0.046 R)
• M36: 48,250,100 km (0.073 R)
• M37: 48,883,647 km (0.029 R)
• M38: 52,635,113 km (0.118 R)
• M39: 62,187,236 km (0.089 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 423

Radius: 5

Gravity: 16.92 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 9.17 AU - 10.91 AU

Year: 20541 Days

Day: 16.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 65,956,956 km

• M1: 65,225 km (0.118 R)
• M2: 369,058 km (0.113 R)
• M3: 885,021 km (0.119 R)
• M4: 1,079,498 km (0.095 R)
• M5: 2,121,747 km (0.109 R)
• M6: 3,399,911 km (0.063 R)
• M7: 4,537,603 km (0.092 R)
• M8: 6,434,354 km (0.09 R)
• M9: 8,299,091 km (0.117 R)
• M10: 10,323,300 km (0.077 R)
• M11: 11,327,102 km (0.115 R)
• M12: 12,201,352 km (0.099 R)
• M13: 13,254,371 km (0.071 R)
• M14: 14,082,994 km (0.035 R)
• M15: 16,382,612 km (0.071 R)
• M16: 20,238,049 km (0.106 R)
• M17: 21,803,441 km (0.108 R)
• M18: 22,374,755 km (0.058 R)
• M19: 23,646,636 km (0.115 R)
• M20: 26,120,087 km (0.062 R)
• M21: 34,565,186 km (0.107 R)
• M22: 38,563,040 km (0.075 R)
• M23: 43,754,086 km (0.054 R)
• M24: 50,046,771 km (0.083 R)
• M25: 50,707,245 km (0.087 R)
• M26: 53,924,647 km (0.094 R)
• M27: 54,618,781 km (0.106 R)
• M28: 59,277,408 km (0.077 R)
• M29: 61,514,046 km (0.12 R)
• M30: 64,193,793 km (0.11 R)
• M31: 64,388,120 km (0.057 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 442 - 11,907 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit