🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.67

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.59 AU - 0.73 AU

Year: 352 Days

Day: 19.5 Hours

Environment

Temp: -125 °C

Axial Tilt: 24 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.3

Radius: 9.6

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.78 AU - 1.04 AU

Year: 569 Days

Day: 11.8 Hours

Environment

Temp: -148 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,656,409 km

• M1: 119,379 km (0.046 R)
• M2: 469,737 km (0.055 R)
• M3: 772,374 km (0.095 R)
• M4: 1,287,290 km (0.092 R)
• M5: 1,634,357 km (0.118 R)
• M6: 1,955,244 km (0.107 R)
• M7: 2,265,361 km (0.076 R)
• M8: 2,737,192 km (0.108 R)
• M9: 3,388,841 km (0.076 R)
• M10: 3,751,915 km (0.109 R)
• M11: 4,303,781 km (0.077 R)
• M12: 4,686,452 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 206.3

Radius: 11.8

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.96 AU - 1.2 AU

Year: 736 Days

Day: 10.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 67,656,409 km

• M1: 147,354 km (0.119 R)
• M2: 548,276 km (0.106 R)
• M3: 1,031,777 km (0.089 R)
• M4: 1,476,082 km (0.083 R)
• M5: 2,040,515 km (0.085 R)
• M6: 2,429,021 km (0.063 R)
• M7: 3,381,809 km (0.106 R)
• M8: 4,154,333 km (0.101 R)
• M9: 4,525,934 km (0.07 R)
• M10: 4,904,865 km (0.096 R)
• M11: 5,336,754 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 881

Radius: 9.6

Gravity: 9.56 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.08 AU - 1.38 AU

Year: 895 Days

Day: 6 Hours

Environment

Temp: -178 °C

Axial Tilt: 149.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 67,656,409 km

• M1: 120,127 km (0.058 R)
• M2: 584,479 km (0.118 R)
• M3: 1,136,046 km (0.049 R)
• M4: 1,825,244 km (0.107 R)
• M5: 2,130,872 km (0.093 R)
• M6: 2,459,389 km (0.076 R)
• M7: 3,178,656 km (0.112 R)
• M8: 3,565,366 km (0.099 R)
• M9: 4,163,010 km (0.111 R)
• M10: 4,609,410 km (0.064 R)
• M11: 5,163,819 km (0.07 R)
• M12: 6,164,629 km (0.066 R)
• M13: 7,965,488 km (0.059 R)
• M14: 9,882,136 km (0.063 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 856.6

Radius: 14.3

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.76 AU - 2.5 AU

Year: 2039 Days

Day: 13.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 162.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 67,656,409 km

• M1: 177,872 km (0.097 R)
• M2: 769,232 km (0.063 R)
• M3: 1,320,052 km (0.072 R)
• M4: 1,781,262 km (0.089 R)
• M5: 2,844,903 km (0.109 R)
• M6: 3,984,838 km (0.113 R)
• M7: 5,201,368 km (0.106 R)
• M8: 6,150,118 km (0.06 R)
• M9: 7,443,541 km (0.091 R)
• M10: 7,892,484 km (0.11 R)
• M11: 8,746,688 km (0.096 R)
• M12: 9,452,940 km (0.096 R)
• M13: 9,908,914 km (0.057 R)
• M14: 11,094,776 km (0.076 R)
• M15: 11,602,661 km (0.087 R)
• M16: 13,005,291 km (0.053 R)
• M17: 15,606,199 km (0.046 R)
• M18: 17,679,925 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 33.3

Radius: 13.8

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 2.27 AU - 3.35 AU

Year: 3090 Days

Day: 7.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 67,656,409 km

• M1: 171,589 km (0.098 R)
• M2: 635,791 km (0.115 R)
• M3: 2,128,030 km (0.084 R)
• M4: 7,379,065 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.1

Radius: 13

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 3.21 AU - 5.17 AU

Year: 5626 Days

Day: 12.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 102.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 67,656,409 km

• M1: 162,463 km (0.06 R)
• M2: 650,302 km (0.076 R)
• M3: 1,088,923 km (0.051 R)
• M4: 1,931,309 km (0.118 R)
• M5: 2,456,098 km (0.066 R)
• M6: 3,037,585 km (0.056 R)
• M7: 4,283,436 km (0.102 R)
• M8: 6,336,816 km (0.094 R)
• M9: 7,723,289 km (0.09 R)
• M10: 8,354,143 km (0.078 R)
• M11: 9,099,739 km (0.09 R)
• M12: 9,846,532 km (0.1 R)
• M13: 12,235,011 km (0.048 R)
• M14: 12,684,553 km (0.068 R)
• M15: 15,271,848 km (0.074 R)
• M16: 16,147,744 km (0.089 R)
• M17: 17,057,000 km (0.109 R)
• M18: 17,808,729 km (0.059 R)
• M19: 18,713,497 km (0.098 R)
• M20: 19,990,315 km (0.065 R)
• M21: 24,325,362 km (0.116 R)
• M22: 27,173,406 km (0.1 R)
• M23: 28,372,433 km (0.119 R)
• M24: 30,509,588 km (0.072 R)

Asteroid Belt

Center: 6.13 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 685.6

Radius: 3.1

Gravity: 71.34 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 7.39 AU - 8.75 AU

Year: 15039 Days

Day: 17.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 67,656,409 km

• M1: 45,029 km (0.046 R)
• M2: 222,452 km (0.049 R)
• M3: 369,956 km (0.116 R)
• M4: 476,768 km (0.111 R)
• M5: 612,753 km (0.112 R)
• M6: 854,802 km (0.03 R)
• M7: 974,929 km (0.072 R)
• M8: 1,404,574 km (0.067 R)
• M9: 1,525,449 km (0.094 R)
• M10: 2,382,196 km (0.12 R)
• M11: 2,598,964 km (0.084 R)
• M12: 2,781,772 km (0.068 R)
• M13: 2,973,108 km (0.089 R)
• M14: 3,097,125 km (0.09 R)
• M15: 3,684,147 km (0.108 R)
• M16: 4,155,380 km (0.111 R)
• M17: 5,004,647 km (0.096 R)
• M18: 5,144,820 km (0.088 R)
• M19: 5,287,686 km (0.118 R)
• M20: 8,882,523 km (0.063 R)
• M21: 10,791,242 km (0.077 R)
• M22: 11,933,871 km (0.117 R)
• M23: 13,221,161 km (0.108 R)
• M24: 14,385,630 km (0.099 R)
• M25: 16,682,107 km (0.063 R)
• M26: 17,074,054 km (0.092 R)
• M27: 17,312,064 km (0.113 R)
• M28: 18,286,545 km (0.075 R)
• M29: 21,984,753 km (0.11 R)
• M30: 22,455,688 km (0.095 R)
• M31: 22,933,204 km (0.107 R)
• M32: 26,046,635 km (0.087 R)
• M33: 27,108,181 km (0.081 R)
• M34: 27,758,633 km (0.116 R)
• M35: 30,464,858 km (0.093 R)
• M36: 39,076,609 km (0.069 R)
• M37: 42,320,340 km (0.085 R)
• M38: 42,902,126 km (0.034 R)
• M39: 44,081,855 km (0.113 R)
• M40: 46,660,025 km (0.099 R)
• M41: 46,969,842 km (0.087 R)
• M42: 49,981,397 km (0.113 R)
• M43: 50,305,725 km (0.098 R)
• M44: 51,287,087 km (0.042 R)
• M45: 53,287,809 km (0.12 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 668.9

Radius: 3.1

Gravity: 69.6 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 6.67 AU - 10.87 AU

Year: 17038 Days

Day: 15.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 67,656,409 km

• M1: 38,596 km (0.073 R)
• M2: 167,849 km (0.053 R)
• M3: 326,871 km (0.025 R)
• M4: 518,357 km (0.082 R)
• M5: 631,303 km (0.073 R)
• M6: 918,381 km (0.093 R)
• M7: 1,136,495 km (0.104 R)
• M8: 2,302,012 km (0.106 R)
• M9: 3,613,836 km (0.111 R)
• M10: 4,575,750 km (0.119 R)
• M11: 4,677,177 km (0.088 R)
• M12: 5,580,749 km (0.085 R)
• M13: 6,053,328 km (0.093 R)
• M14: 6,257,978 km (0.108 R)
• M15: 7,773,255 km (0.061 R)
• M16: 8,361,623 km (0.061 R)
• M17: 9,191,592 km (0.105 R)
• M18: 9,626,623 km (0.099 R)
• M19: 11,881,212 km (0.025 R)
• M20: 14,464,319 km (0.047 R)
• M21: 14,609,728 km (0.041 R)
• M22: 16,353,590 km (0.09 R)
• M23: 18,315,866 km (0.093 R)
• M24: 22,896,852 km (0.106 R)
• M25: 28,412,525 km (0.07 R)
• M26: 34,491,435 km (0.08 R)
• M27: 34,881,436 km (0.042 R)
• M28: 35,405,926 km (0.071 R)
• M29: 43,161,828 km (0.116 R)
• M30: 45,769,917 km (0.112 R)
• M31: 46,715,077 km (0.1 R)
• M32: 47,032,972 km (0.049 R)
• M33: 51,129,111 km (0.056 R)
• M34: 53,176,957 km (0.1 R)
• M35: 54,748,333 km (0.094 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 561.9

Radius: 6.8

Gravity: 12.15 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 7.88 AU - 10.66 AU

Year: 18515 Days

Day: 20.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 67,656,409 km

• M1: 85,570 km (0.112 R)
• M2: 326,572 km (0.066 R)
• M3: 555,457 km (0.086 R)
• M4: 906,713 km (0.06 R)
• M5: 1,258,567 km (0.108 R)
• M6: 1,567,935 km (0.094 R)
• M7: 2,535,086 km (0.077 R)
• M8: 3,734,112 km (0.119 R)
• M9: 4,376,785 km (0.065 R)
• M10: 4,673,886 km (0.09 R)
• M11: 6,283,260 km (0.116 R)
• M12: 6,834,828 km (0.048 R)
• M13: 7,698,456 km (0.079 R)
• M14: 9,260,557 km (0.069 R)
• M15: 9,640,685 km (0.032 R)
• M16: 12,730,629 km (0.092 R)
• M17: 14,534,630 km (0.081 R)
• M18: 18,048,385 km (0.11 R)
• M19: 19,072,981 km (0.064 R)
• M20: 19,599,565 km (0.077 R)
• M21: 20,226,231 km (0.081 R)
• M22: 21,708,446 km (0.049 R)
• M23: 22,282,453 km (0.043 R)
• M24: 22,670,809 km (0.104 R)
• M25: 22,964,919 km (0.096 R)
• M26: 23,361,203 km (0.118 R)
• M27: 29,397,029 km (0.039 R)
• M28: 30,336,354 km (0.088 R)
• M29: 34,681,424 km (0.075 R)
• M30: 35,202,922 km (0.073 R)
• M31: 36,529,706 km (0.103 R)
• M32: 40,999,092 km (0.114 R)
• M33: 45,352,390 km (0.116 R)
• M34: 46,605,421 km (0.101 R)
• M35: 52,359,554 km (0.07 R)
• M36: 59,123,622 km (0.079 R)
• M37: 63,488,140 km (0.086 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: 156 - 14,249 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit