🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.83

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.58 AU - 0.62 AU

Year: 169 Days

Day: 25.2 Hours

Environment

Temp: 161 °C

Axial Tilt: 8.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 53,628,227 km

• M1: 305,479 km (0.115 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.99

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.63 AU - 0.71 AU

Year: 199 Days

Day: 12.9 Hours

Environment

Temp: 139 °C

Axial Tilt: 44.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 53,628,227 km

• M1: 73,901 km (0.12 R)
• M2: 353,949 km (0.1 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.67

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.82 AU - 0.98 AU

Year: 310 Days

Day: 37.4 Hours

Environment

Temp: 148 °C

Axial Tilt: 28.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.28

Radius: 1.39

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.21 AU - 1.23 AU

Year: 490 Days

Day: 17.3 Hours

Environment

Temp: 2 °C

Axial Tilt: 89.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.66

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.62 AU - 1.9 AU

Year: 849 Days

Day: 20.4 Hours

Environment

Temp: -50 °C

Axial Tilt: 31.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 53,628,227 km

• M1: 153,039 km (0.114 R)
• M2: 785,688 km (0.107 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.77

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 2.18 AU - 2.48 AU

Year: 1293 Days

Day: 36.9 Hours

Environment

Temp: -75 °C

Axial Tilt: 14 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 11.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161.5

Radius: 9.7

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 9.8 AU - 13.12 AU

Year: 14100 Days

Day: 14.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (49)

Outer Limit: 53,628,227 km

• M1: 147,204 km (0.09 R)
• M2: 250,128 km (0.039 R)
• M3: 333,005 km (0.065 R)
• M4: 406,457 km (0.105 R)
• M5: 1,190,201 km (0.105 R)
• M6: 1,760,767 km (0.119 R)
• M7: 2,064,750 km (0.027 R)
• M8: 3,365,653 km (0.057 R)
• M9: 3,641,212 km (0.087 R)
• M10: 4,787,581 km (0.105 R)
• M11: 5,443,567 km (0.103 R)
• M12: 6,036,872 km (0.079 R)
• M13: 6,279,969 km (0.071 R)
• M14: 6,744,470 km (0.064 R)
• M15: 7,028,557 km (0.099 R)
• M16: 8,745,641 km (0.084 R)
• M17: 9,334,010 km (0.053 R)
• M18: 9,509,488 km (0.082 R)
• M19: 9,935,094 km (0.12 R)
• M20: 10,330,780 km (0.045 R)
• M21: 10,439,538 km (0.12 R)
• M22: 10,989,460 km (0.074 R)
• M23: 11,063,361 km (0.098 R)
• M24: 11,964,539 km (0.119 R)
• M25: 12,655,980 km (0.073 R)
• M26: 14,319,059 km (0.084 R)
• M27: 14,399,842 km (0.078 R)
• M28: 15,756,695 km (0.072 R)
• M29: 16,302,278 km (0.093 R)
• M30: 16,641,267 km (0.054 R)
• M31: 17,369,061 km (0.103 R)
• M32: 17,845,530 km (0.086 R)
• M33: 18,107,326 km (0.072 R)
• M34: 18,502,265 km (0.061 R)
• M35: 19,033,337 km (0.096 R)
• M36: 20,201,098 km (0.054 R)
• M37: 20,656,474 km (0.096 R)
• M38: 21,949,299 km (0.049 R)
• M39: 22,417,391 km (0.106 R)
• M40: 23,125,736 km (0.064 R)
• M41: 24,952,775 km (0.111 R)
• M42: 26,081,042 km (0.09 R)
• M43: 26,229,443 km (0.093 R)
• M44: 27,175,800 km (0.095 R)
• M45: 27,981,384 km (0.044 R)
• M46: 28,082,662 km (0.1 R)
• M47: 28,183,940 km (0.075 R)
• M48: 29,358,582 km (0.103 R)
• M49: 31,491,698 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 126

Radius: 7.1

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 14.45 AU - 21.41 AU

Year: 27593 Days

Day: 21.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (91)

Outer Limit: 53,628,227 km

• M1: 97,089 km (0.119 R)
• M2: 339,138 km (0.115 R)
• M3: 975,528 km (0.077 R)
• M4: 1,101,190 km (0.05 R)
• M5: 1,187,957 km (0.096 R)
• M6: 1,254,677 km (0.081 R)
• M7: 1,299,706 km (0.061 R)
• M8: 1,345,483 km (0.114 R)
• M9: 1,832,424 km (0.079 R)
• M10: 2,122,046 km (0.094 R)
• M11: 2,313,980 km (0.056 R)
• M12: 2,426,178 km (0.096 R)
• M13: 3,676,667 km (0.084 R)
• M14: 4,177,072 km (0.104 R)
• M15: 5,650,760 km (0.117 R)
• M16: 6,541,316 km (0.085 R)
• M17: 7,145,393 km (0.108 R)
• M18: 7,599,721 km (0.082 R)
• M19: 7,725,234 km (0.048 R)
• M20: 7,809,308 km (0.032 R)
• M21: 8,363,269 km (0.104 R)
• M22: 8,536,204 km (0.11 R)
• M23: 8,754,168 km (0.026 R)
• M24: 8,885,814 km (0.114 R)
• M25: 9,062,340 km (0.101 R)
• M26: 9,106,621 km (0.099 R)
• M27: 9,418,832 km (0.108 R)
• M28: 9,598,947 km (0.05 R)
• M29: 9,825,588 km (0.114 R)
• M30: 10,655,856 km (0.098 R)
• M31: 11,412,822 km (0.059 R)
• M32: 11,991,915 km (0.094 R)
• M33: 12,186,991 km (0.046 R)
• M34: 12,334,045 km (0.106 R)
• M35: 12,629,950 km (0.1 R)
• M36: 13,785,593 km (0.088 R)
• M37: 14,144,030 km (0.049 R)
• M38: 14,246,953 km (0.108 R)
• M39: 16,250,368 km (0.114 R)
• M40: 16,574,696 km (0.059 R)
• M41: 16,629,000 km (0.07 R)
• M42: 16,792,062 km (0.094 R)
• M43: 18,004,553 km (0.116 R)
• M44: 18,734,291 km (0.083 R)
• M45: 19,017,480 km (0.106 R)
• M46: 22,105,629 km (0.038 R)
• M47: 22,886,529 km (0.097 R)
• M48: 23,068,141 km (0.113 R)
• M49: 23,432,562 km (0.111 R)
• M50: 23,860,112 km (0.077 R)
• M51: 25,220,705 km (0.102 R)
• M52: 25,345,619 km (0.069 R)
• M53: 25,658,877 km (0.083 R)
• M54: 29,319,238 km (0.086 R)
• M55: 30,243,005 km (0.089 R)
• M56: 30,908,566 km (0.06 R)
• M57: 31,176,196 km (0.056 R)
• M58: 31,781,170 km (0.093 R)
• M59: 32,322,116 km (0.055 R)
• M60: 32,390,033 km (0.07 R)
• M61: 33,207,735 km (0.104 R)
• M62: 33,413,283 km (0.095 R)
• M63: 33,894,390 km (0.047 R)
• M64: 34,377,740 km (0.116 R)
• M65: 35,912,016 km (0.078 R)
• M66: 36,263,721 km (0.114 R)
• M67: 36,404,791 km (0.1 R)
• M68: 36,475,402 km (0.048 R)
• M69: 36,899,811 km (0.056 R)
• M70: 37,112,689 km (0.119 R)
• M71: 37,183,748 km (0.097 R)
• M72: 37,539,641 km (0.044 R)
• M73: 37,896,581 km (0.12 R)
• M74: 37,968,239 km (0.075 R)
• M75: 38,326,526 km (0.093 R)
• M76: 38,614,053 km (0.1 R)
• M77: 38,974,434 km (0.1 R)
• M78: 39,625,933 km (0.091 R)
• M79: 42,045,529 km (0.118 R)
• M80: 42,564,783 km (0.113 R)
• M81: 42,937,132 km (0.118 R)
• M82: 43,011,632 km (0.082 R)
• M83: 43,684,822 km (0.053 R)
• M84: 44,437,000 km (0.12 R)
• M85: 44,587,945 km (0.109 R)
• M86: 47,719,327 km (0.114 R)
• M87: 47,874,011 km (0.118 R)
• M88: 48,882,600 km (0.082 R)
• M89: 49,350,542 km (0.117 R)
• M90: 51,237,121 km (0.111 R)
• M91: 52,986,967 km (0.075 R)

Kuiper Belt

Range: 30.2 - 59.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 449 - 14,554 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit