🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.43

Radius: 1.15

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.57 AU - 0.63 AU

Year: 296 Days

Day: 21.3 Hours

Environment

Temp: -125 °C

Axial Tilt: 17.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,422,729 km

• M1: 299,196 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 428.7

Radius: 11

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.85 AU - 0.87 AU

Year: 507 Days

Day: 10.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 65,422,729 km

• M1: 137,331 km (0.084 R)
• M2: 514,467 km (0.119 R)
• M3: 916,287 km (0.119 R)
• M4: 1,474,736 km (0.088 R)
• M5: 1,921,435 km (0.081 R)
• M6: 2,330,585 km (0.116 R)
• M7: 3,408,288 km (0.101 R)
• M8: 3,846,012 km (0.073 R)
• M9: 4,376,486 km (0.106 R)
• M10: 4,865,222 km (0.113 R)
• M11: 5,470,345 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 754.3

Radius: 8.9

Gravity: 9.52 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.31 AU - 1.33 AU

Year: 964 Days

Day: 6.4 Hours

Environment

Temp: -179 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 65,422,729 km

• M1: 110,702 km (0.119 R)
• M2: 420,370 km (0.098 R)
• M3: 975,977 km (0.12 R)
• M4: 1,444,816 km (0.117 R)
• M5: 2,099,157 km (0.109 R)
• M6: 2,636,812 km (0.074 R)
• M7: 3,152,626 km (0.109 R)
• M8: 3,719,003 km (0.117 R)
• M9: 4,524,887 km (0.055 R)
• M10: 5,304,441 km (0.075 R)
• M11: 6,301,810 km (0.097 R)
• M12: 6,938,648 km (0.082 R)
• M13: 7,394,623 km (0.083 R)
• M14: 7,768,767 km (0.038 R)
• M15: 8,393,637 km (0.03 R)
• M16: 10,042,056 km (0.043 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 857.6

Radius: 11.7

Gravity: 6.26 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.86 AU - 3.1 AU

Year: 2483 Days

Day: 11.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 65,422,729 km

• M1: 145,559 km (0.106 R)
• M2: 522,545 km (0.106 R)
• M3: 1,214,136 km (0.067 R)
• M4: 1,745,508 km (0.12 R)
• M5: 2,400,597 km (0.091 R)
• M6: 2,802,118 km (0.083 R)
• M7: 3,462,144 km (0.101 R)
• M8: 4,244,241 km (0.095 R)
• M9: 4,745,095 km (0.101 R)
• M10: 5,659,437 km (0.059 R)
• M11: 6,350,130 km (0.069 R)
• M12: 6,831,536 km (0.075 R)
• M13: 7,216,003 km (0.095 R)
• M14: 8,423,856 km (0.1 R)
• M15: 9,614,805 km (0.101 R)
• M16: 10,835,224 km (0.109 R)
• M17: 11,482,833 km (0.028 R)
• M18: 12,458,959 km (0.051 R)
• M19: 14,673,307 km (0.104 R)
• M20: 16,392,635 km (0.113 R)
• M21: 18,812,381 km (0.103 R)
• M22: 19,689,025 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350.6

Radius: 12.3

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 2.35 AU - 3.13 AU

Year: 2884 Days

Day: 5.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 65,422,729 km

• M1: 153,039 km (0.065 R)
• M2: 722,259 km (0.075 R)
• M3: 1,159,533 km (0.096 R)
• M4: 1,565,542 km (0.116 R)
• M5: 2,378,606 km (0.081 R)
• M6: 2,837,423 km (0.067 R)
• M7: 3,289,059 km (0.119 R)
• M8: 4,066,968 km (0.082 R)
• M9: 4,602,678 km (0.06 R)
• M10: 5,162,772 km (0.041 R)
• M11: 5,988,403 km (0.072 R)
• M12: 6,498,532 km (0.102 R)
• M13: 7,490,066 km (0.034 R)
• M14: 7,962,047 km (0.069 R)
• M15: 9,129,958 km (0.06 R)
• M16: 9,634,851 km (0.087 R)
• M17: 10,158,294 km (0.073 R)
• M18: 11,338,471 km (0.052 R)
• M19: 12,201,651 km (0.115 R)
• M20: 13,405,615 km (0.038 R)
• M21: 14,460,729 km (0.117 R)
• M22: 15,428,477 km (0.109 R)
• M23: 15,856,327 km (0.075 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 823

Radius: 3.2

Gravity: 80.37 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 7.75 AU - 8.59 AU

Year: 14848 Days

Day: 19.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 65,422,729 km

• M1: 40,242 km (0.092 R)
• M2: 140,622 km (0.115 R)
• M3: 296,353 km (0.118 R)
• M4: 407,355 km (0.083 R)
• M5: 1,063,042 km (0.103 R)
• M6: 1,245,552 km (0.101 R)
• M7: 1,542,055 km (0.083 R)
• M8: 2,273,289 km (0.115 R)
• M9: 2,421,690 km (0.049 R)
• M10: 2,599,113 km (0.087 R)
• M11: 5,346,478 km (0.096 R)
• M12: 5,458,078 km (0.111 R)
• M13: 5,609,172 km (0.113 R)
• M14: 5,920,037 km (0.056 R)
• M15: 6,365,838 km (0.032 R)
• M16: 6,618,359 km (0.113 R)
• M17: 7,648,191 km (0.111 R)
• M18: 7,981,794 km (0.116 R)
• M19: 8,324,822 km (0.104 R)
• M20: 8,525,283 km (0.058 R)
• M21: 8,987,990 km (0.1 R)
• M22: 11,187,976 km (0.102 R)
• M23: 12,249,971 km (0.085 R)
• M24: 16,377,376 km (0.084 R)
• M25: 16,692,130 km (0.075 R)
• M26: 18,158,190 km (0.088 R)
• M27: 18,326,188 km (0.119 R)
• M28: 18,580,205 km (0.056 R)
• M29: 22,774,032 km (0.116 R)
• M30: 25,612,801 km (0.111 R)
• M31: 27,890,279 km (0.1 R)
• M32: 28,906,348 km (0.114 R)
• M33: 29,713,428 km (0.099 R)
• M34: 37,801,437 km (0.111 R)
• M35: 38,905,170 km (0.084 R)
• M36: 42,640,779 km (0.034 R)
• M37: 46,765,641 km (0.106 R)
• M38: 48,036,923 km (0.075 R)
• M39: 49,331,244 km (0.109 R)
• M40: 60,345,387 km (0.091 R)
• M41: 63,768,935 km (0.061 R)
• M42: 64,938,341 km (0.037 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 470.6

Radius: 3.9

Gravity: 30.94 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 8.28 AU - 11.14 AU

Year: 19238 Days

Day: 23.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 65,422,729 km

• M1: 48,470 km (0.108 R)
• M2: 316,250 km (0.115 R)
• M3: 533,316 km (0.119 R)
• M4: 707,299 km (0.032 R)
• M5: 1,422,975 km (0.085 R)
• M6: 3,808,313 km (0.078 R)
• M7: 3,986,334 km (0.062 R)
• M8: 4,653,840 km (0.107 R)
• M9: 4,788,927 km (0.068 R)
• M10: 4,961,413 km (0.109 R)
• M11: 5,319,102 km (0.068 R)
• M12: 5,504,154 km (0.084 R)
• M13: 8,926,056 km (0.082 R)
• M14: 10,925,132 km (0.104 R)
• M15: 11,902,306 km (0.111 R)
• M16: 12,155,276 km (0.058 R)
• M17: 12,283,182 km (0.071 R)
• M18: 13,612,060 km (0.103 R)
• M19: 13,888,816 km (0.114 R)
• M20: 14,240,072 km (0.084 R)
• M21: 14,669,418 km (0.103 R)
• M22: 14,887,232 km (0.057 R)
• M23: 15,478,742 km (0.086 R)
• M24: 15,780,331 km (0.056 R)
• M25: 17,509,234 km (0.093 R)
• M26: 18,084,887 km (0.08 R)
• M27: 23,053,481 km (0.094 R)
• M28: 26,755,130 km (0.067 R)
• M29: 31,551,687 km (0.097 R)
• M30: 33,645,758 km (0.119 R)
• M31: 33,771,719 km (0.097 R)
• M32: 36,225,723 km (0.06 R)
• M33: 44,145,135 km (0.109 R)
• M34: 44,751,305 km (0.119 R)
• M35: 47,547,589 km (0.073 R)
• M36: 54,174,176 km (0.111 R)
• M37: 55,393,698 km (0.106 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 380 - 11,805 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit