🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.06

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.53 AU - 0.75 AU

Year: 336 Days

Day: 31.7 Hours

Environment

Temp: -125 °C

Axial Tilt: 27.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,248,163 km

• M1: 243,097 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 749.6

Radius: 11.4

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.75 AU - 1.21 AU

Year: 636 Days

Day: 14.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 65,248,163 km

• M1: 141,819 km (0.031 R)
• M2: 496,515 km (0.094 R)
• M3: 884,572 km (0.042 R)
• M4: 1,372,860 km (0.073 R)
• M5: 2,002,367 km (0.099 R)
• M6: 2,436,201 km (0.063 R)
• M7: 3,429,830 km (0.061 R)
• M8: 3,896,277 km (0.03 R)
• M9: 5,094,107 km (0.068 R)
• M10: 6,833,930 km (0.063 R)
• M11: 7,486,027 km (0.055 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.3

Radius: 8.1

Gravity: 8.66 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.15 AU - 1.21 AU

Year: 841 Days

Day: 9.4 Hours

Environment

Temp: -169 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,248,163 km

• M1: 100,979 km (0.033 R)
• M2: 391,348 km (0.104 R)
• M3: 643,420 km (0.079 R)
• M4: 954,285 km (0.081 R)
• M5: 1,214,286 km (0.086 R)
• M6: 1,545,645 km (0.043 R)
• M7: 2,097,811 km (0.025 R)
• M8: 2,447,122 km (0.12 R)
• M9: 2,799,126 km (0.055 R)
• M10: 3,438,208 km (0.064 R)
• M11: 3,940,857 km (0.115 R)
• M12: 4,725,946 km (0.059 R)
• M13: 5,554,120 km (0.118 R)
• M14: 5,903,431 km (0.078 R)
• M15: 6,433,756 km (0.111 R)
• M16: 6,688,970 km (0.093 R)
• M17: 7,129,535 km (0.098 R)
• M18: 7,426,188 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.1

Radius: 9.4

Gravity: 8.5 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.07 AU - 1.41 AU

Year: 906 Days

Day: 11.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 65,248,163 km

• M1: 116,836 km (0.078 R)
• M2: 430,692 km (0.101 R)
• M3: 836,402 km (0.102 R)
• M4: 1,146,368 km (0.088 R)
• M5: 2,059,215 km (0.057 R)
• M6: 2,419,895 km (0.103 R)
• M7: 3,353,535 km (0.066 R)
• M8: 3,673,077 km (0.087 R)
• M9: 4,076,991 km (0.118 R)
• M10: 4,756,464 km (0.065 R)
• M11: 5,689,506 km (0.097 R)
• M12: 6,383,640 km (0.04 R)
• M13: 8,405,007 km (0.109 R)
• M14: 9,248,739 km (0.091 R)
• M15: 9,763,804 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 432.5

Radius: 9.1

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.45 AU - 1.63 AU

Year: 1254 Days

Day: 5 Hours

Environment

Temp: -184 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 65,248,163 km

• M1: 113,246 km (0.11 R)
• M2: 419,622 km (0.043 R)
• M3: 740,958 km (0.119 R)
• M4: 1,066,483 km (0.072 R)
• M5: 1,386,623 km (0.068 R)
• M6: 1,883,138 km (0.12 R)
• M7: 2,346,742 km (0.116 R)
• M8: 3,302,223 km (0.076 R)
• M9: 3,821,328 km (0.108 R)
• M10: 4,141,767 km (0.071 R)
• M11: 4,585,175 km (0.116 R)
• M12: 4,966,201 km (0.116 R)
• M13: 5,771,336 km (0.116 R)
• M14: 6,216,240 km (0.085 R)
• M15: 6,961,387 km (0.115 R)
• M16: 7,866,305 km (0.045 R)
• M17: 8,149,793 km (0.067 R)
• M18: 9,211,040 km (0.104 R)
• M19: 9,497,370 km (0.061 R)
• M20: 9,938,086 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 805.7

Radius: 13.8

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 5.09 AU - 5.75 AU

Year: 8278 Days

Day: 5.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 65,248,163 km

• M1: 171,589 km (0.078 R)
• M2: 664,364 km (0.059 R)
• M3: 1,147,116 km (0.108 R)
• M4: 1,980,526 km (0.035 R)
• M5: 2,629,183 km (0.106 R)
• M6: 4,167,049 km (0.102 R)
• M7: 5,495,927 km (0.096 R)
• M8: 5,996,930 km (0.063 R)
• M9: 8,400,668 km (0.086 R)
• M10: 9,344,182 km (0.073 R)
• M11: 12,262,238 km (0.1 R)
• M12: 13,536,064 km (0.086 R)
• M13: 14,205,215 km (0.086 R)
• M14: 15,874,728 km (0.106 R)
• M15: 16,826,170 km (0.091 R)
• M16: 20,695,669 km (0.106 R)
• M17: 22,752,191 km (0.083 R)
• M18: 24,671,681 km (0.107 R)
• M19: 25,122,569 km (0.089 R)
• M20: 25,763,147 km (0.077 R)
• M21: 26,886,477 km (0.055 R)
• M22: 29,432,184 km (0.047 R)
• M23: 32,781,232 km (0.103 R)
• M24: 33,217,010 km (0.093 R)
• M25: 37,789,918 km (0.083 R)
• M26: 40,351,183 km (0.033 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.6

Radius: 10.2

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 5.7 AU - 5.94 AU

Year: 9211 Days

Day: 13.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 65,248,163 km

• M1: 126,859 km (0.089 R)
• M2: 603,627 km (0.091 R)
• M3: 961,017 km (0.102 R)
• M4: 1,336,657 km (0.119 R)
• M5: 1,811,032 km (0.049 R)
• M6: 2,845,501 km (0.101 R)
• M7: 3,416,217 km (0.105 R)
• M8: 4,597,442 km (0.042 R)
• M9: 5,686,813 km (0.105 R)
• M10: 6,458,589 km (0.11 R)
• M11: 7,783,278 km (0.115 R)
• M12: 8,409,046 km (0.077 R)
• M13: 8,858,438 km (0.045 R)
• M14: 9,323,837 km (0.119 R)
• M15: 12,053,100 km (0.092 R)
• M16: 12,519,696 km (0.052 R)
• M17: 15,699,100 km (0.11 R)
• M18: 16,825,871 km (0.035 R)
• M19: 17,343,629 km (0.077 R)
• M20: 22,260,313 km (0.119 R)
• M21: 23,121,548 km (0.08 R)
• M22: 30,066,030 km (0.039 R)
• M23: 30,925,021 km (0.093 R)
• M24: 33,295,699 km (0.063 R)
• M25: 34,112,204 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 789.2

Radius: 4.4

Gravity: 40.76 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 5.89 AU - 7.05 AU

Year: 10796 Days

Day: 21.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 150.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 65,248,163 km

• M1: 55,351 km (0.1 R)
• M2: 267,032 km (0.095 R)
• M3: 417,079 km (0.09 R)
• M4: 587,172 km (0.096 R)
• M5: 775,964 km (0.104 R)
• M6: 1,553,574 km (0.112 R)
• M7: 1,818,362 km (0.042 R)
• M8: 2,112,771 km (0.119 R)
• M9: 2,418,100 km (0.107 R)
• M10: 3,722,294 km (0.112 R)
• M11: 4,225,691 km (0.111 R)
• M12: 4,403,114 km (0.073 R)
• M13: 5,063,738 km (0.113 R)
• M14: 6,462,030 km (0.093 R)
• M15: 6,618,659 km (0.075 R)
• M16: 7,228,569 km (0.098 R)
• M17: 7,482,736 km (0.117 R)
• M18: 9,633,504 km (0.05 R)
• M19: 10,959,690 km (0.092 R)
• M20: 11,182,590 km (0.071 R)
• M21: 11,408,483 km (0.093 R)
• M22: 12,342,872 km (0.081 R)
• M23: 13,076,200 km (0.074 R)
• M24: 14,562,455 km (0.094 R)
• M25: 17,034,410 km (0.082 R)
• M26: 18,252,287 km (0.1 R)
• M27: 19,527,010 km (0.113 R)
• M28: 19,854,779 km (0.118 R)
• M29: 22,520,015 km (0.12 R)
• M30: 24,645,052 km (0.1 R)
• M31: 26,900,091 km (0.049 R)
• M32: 30,699,577 km (0.103 R)
• M33: 35,444,971 km (0.11 R)
• M34: 45,204,737 km (0.076 R)
• M35: 46,211,231 km (0.058 R)
• M36: 46,501,601 km (0.091 R)
• M37: 49,471,717 km (0.106 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 429.2

Radius: 3.2

Gravity: 41.91 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 9.15 AU - 10.41 AU

Year: 20064 Days

Day: 21.5 Hours

Environment

Temp: -235 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 65,248,163 km

• M1: 39,793 km (0.063 R)
• M2: 413,788 km (0.099 R)
• M3: 530,773 km (0.111 R)
• M4: 772,673 km (0.075 R)
• M5: 1,713,793 km (0.057 R)
• M6: 2,176,499 km (0.104 R)
• M7: 3,342,764 km (0.074 R)
• M8: 5,481,715 km (0.102 R)
• M9: 6,021,613 km (0.07 R)
• M10: 6,141,741 km (0.087 R)
• M11: 9,208,647 km (0.108 R)
• M12: 10,081,251 km (0.057 R)
• M13: 13,500,460 km (0.113 R)
• M14: 14,124,732 km (0.06 R)
• M15: 17,214,077 km (0.101 R)
• M16: 17,375,344 km (0.102 R)
• M17: 18,113,460 km (0.051 R)
• M18: 21,930,449 km (0.096 R)
• M19: 26,786,396 km (0.032 R)
• M20: 37,056,141 km (0.096 R)
• M21: 49,017,089 km (0.107 R)
• M22: 57,912,477 km (0.083 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 366 - 11,758 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit