🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.12

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.51 AU - 0.55 AU

Year: 136 Days

Day: 40.5 Hours

Environment

Temp: 222 °C

Axial Tilt: 11.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.53

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.53 AU - 0.69 AU

Year: 167 Days

Day: 17.2 Hours

Environment

Temp: 187 °C

Axial Tilt: 47 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.66

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.81 AU - 0.95 AU

Year: 290 Days

Day: 32.7 Hours

Environment

Temp: 169 °C

Axial Tilt: 63.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 99,605,896 km

• M1: 115,041 km (0.053 R)
• M2: 579,093 km (0.116 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.77

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.89 AU - 1.33 AU

Year: 411 Days

Day: 38.8 Hours

Environment

Temp: 34 °C

Axial Tilt: 23.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.39

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.74 AU - 2.36 AU

Year: 1032 Days

Day: 47.8 Hours

Environment

Temp: -55 °C

Axial Tilt: 31.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.53

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 2.54 AU - 2.92 AU

Year: 1585 Days

Day: 32 Hours

Environment

Temp: -84 °C

Axial Tilt: 17.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.27

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 4.97 AU - 5.39 AU

Year: 4144 Days

Day: 23.3 Hours

Environment

Temp: -122 °C

Axial Tilt: 32.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 99,605,896 km

• M1: 47,123 km (0.059 R)

Asteroid Belt

Center: 9.37 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 13.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 632.2

Radius: 3.2

Gravity: 61.74 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 12.68 AU - 14.42 AU

Year: 17530 Days

Day: 20.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (84)

Outer Limit: 99,605,896 km

• M1: 51,013 km (0.115 R)
• M2: 88,263 km (0.094 R)
• M3: 374,743 km (0.101 R)
• M4: 522,396 km (0.115 R)
• M5: 602,730 km (0.054 R)
• M6: 1,404,874 km (0.107 R)
• M7: 1,488,648 km (0.076 R)
• M8: 3,783,929 km (0.093 R)
• M9: 4,298,545 km (0.035 R)
• M10: 4,338,937 km (0.047 R)
• M11: 4,543,437 km (0.045 R)
• M12: 5,435,489 km (0.101 R)
• M13: 6,059,462 km (0.077 R)
• M14: 6,941,790 km (0.105 R)
• M15: 6,989,362 km (0.108 R)
• M16: 7,519,537 km (0.116 R)
• M17: 8,263,038 km (0.118 R)
• M18: 9,185,608 km (0.094 R)
• M19: 9,606,128 km (0.106 R)
• M20: 9,818,707 km (0.119 R)
• M21: 11,630,636 km (0.11 R)
• M22: 12,429,937 km (0.041 R)
• M23: 12,545,577 km (0.096 R)
• M24: 14,020,462 km (0.045 R)
• M25: 14,140,888 km (0.094 R)
• M26: 14,503,962 km (0.032 R)
• M27: 14,686,621 km (0.117 R)
• M28: 15,054,333 km (0.074 R)
• M29: 15,986,776 km (0.115 R)
• M30: 16,112,588 km (0.081 R)
• M31: 16,618,678 km (0.11 R)
• M32: 17,646,714 km (0.084 R)
• M33: 18,827,490 km (0.078 R)
• M34: 20,851,550 km (0.099 R)
• M35: 21,195,475 km (0.076 R)
• M36: 21,264,589 km (0.119 R)
• M37: 21,402,818 km (0.084 R)
• M38: 21,889,160 km (0.11 R)
• M39: 23,798,628 km (0.082 R)
• M40: 24,158,111 km (0.089 R)
• M41: 24,302,324 km (0.107 R)
• M42: 24,664,351 km (0.091 R)
• M43: 27,247,307 km (0.091 R)
• M44: 28,076,828 km (0.108 R)
• M45: 28,685,093 km (0.113 R)
• M46: 28,761,537 km (0.062 R)
• M47: 28,914,426 km (0.068 R)
• M48: 29,144,208 km (0.052 R)
• M49: 29,374,739 km (0.113 R)
• M50: 31,004,907 km (0.09 R)
• M51: 31,240,224 km (0.11 R)
• M52: 31,712,654 km (0.112 R)
• M53: 34,921,229 km (0.09 R)
• M54: 36,068,346 km (0.116 R)
• M55: 36,563,814 km (0.091 R)
• M56: 37,477,857 km (0.096 R)
• M57: 39,159,187 km (0.114 R)
• M58: 39,583,297 km (0.112 R)
• M59: 40,008,903 km (0.11 R)
• M60: 40,864,753 km (0.108 R)
• M61: 42,856,050 km (0.114 R)
• M62: 43,731,646 km (0.112 R)
• M63: 45,144,748 km (0.107 R)
• M64: 46,303,832 km (0.086 R)
• M65: 46,662,568 km (0.093 R)
• M66: 47,653,504 km (0.106 R)
• M67: 47,925,024 km (0.056 R)
• M68: 48,287,799 km (0.095 R)
• M69: 48,651,472 km (0.077 R)
• M70: 49,290,105 km (0.076 R)
• M71: 49,381,509 km (0.106 R)
• M72: 50,299,142 km (0.061 R)
• M73: 50,667,901 km (0.11 R)
• M74: 53,273,447 km (0.104 R)
• M75: 54,214,418 km (0.061 R)
• M76: 54,497,906 km (0.086 R)
• M77: 58,033,203 km (0.091 R)
• M78: 58,807,372 km (0.115 R)
• M79: 60,463,570 km (0.108 R)
• M80: 61,740,537 km (0.055 R)
• M81: 64,921,287 km (0.071 R)
• M82: 66,026,815 km (0.056 R)
• M83: 67,443,058 km (0.082 R)
• M84: 67,747,789 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 836.4

Radius: 7.9

Gravity: 13.4 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 17.81 AU - 18.43 AU

Year: 27109 Days

Day: 19.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 99,605,896 km

• M1: 694,733 km (0.109 R)
• M2: 1,747,303 km (0.032 R)
• M3: 1,862,793 km (0.119 R)
• M4: 2,142,092 km (0.104 R)
• M5: 3,387,644 km (0.034 R)
• M6: 3,728,577 km (0.034 R)
• M7: 4,601,930 km (0.083 R)
• M8: 5,144,072 km (0.055 R)
• M9: 5,199,424 km (0.096 R)
• M10: 5,937,091 km (0.05 R)
• M11: 6,111,821 km (0.089 R)
• M12: 6,586,495 km (0.074 R)
• M13: 6,767,508 km (0.099 R)
• M14: 7,011,503 km (0.092 R)
• M15: 7,952,174 km (0.11 R)
• M16: 8,016,202 km (0.059 R)
• M17: 8,535,307 km (0.116 R)
• M18: 9,742,711 km (0.113 R)
• M19: 9,811,376 km (0.041 R)
• M20: 10,296,373 km (0.098 R)
• M21: 10,506,707 km (0.06 R)
• M22: 12,462,101 km (0.051 R)
• M23: 12,536,750 km (0.059 R)
• M24: 12,761,297 km (0.087 R)
• M25: 13,826,733 km (0.116 R)
• M26: 15,718,847 km (0.079 R)
• M27: 16,123,060 km (0.105 R)
• M28: 17,190,291 km (0.109 R)
• M29: 17,273,318 km (0.06 R)
• M30: 17,774,321 km (0.07 R)
• M31: 17,942,469 km (0.102 R)
• M32: 18,195,589 km (0.098 R)
• M33: 18,534,877 km (0.078 R)
• M34: 18,705,269 km (0.094 R)
• M35: 19,219,736 km (0.064 R)
• M36: 21,234,670 km (0.051 R)
• M37: 25,366,413 km (0.044 R)
• M38: 25,460,959 km (0.066 R)
• M39: 26,893,658 km (0.096 R)
• M40: 27,668,425 km (0.12 R)
• M41: 29,736,915 km (0.092 R)
• M42: 30,036,410 km (0.092 R)
• M43: 30,136,491 km (0.031 R)
• M44: 30,336,952 km (0.096 R)
• M45: 31,143,285 km (0.118 R)
• M46: 31,244,712 km (0.118 R)
• M47: 31,650,870 km (0.106 R)
• M48: 32,468,722 km (0.029 R)
• M49: 33,189,933 km (0.098 R)
• M50: 35,596,664 km (0.061 R)
• M51: 36,233,651 km (0.043 R)
• M52: 36,660,454 km (0.115 R)
• M53: 38,059,045 km (0.111 R)
• M54: 39,037,415 km (0.071 R)
• M55: 39,584,644 km (0.082 R)
• M56: 39,694,299 km (0.059 R)
• M57: 40,908,136 km (0.087 R)
• M58: 42,470,387 km (0.109 R)
• M59: 45,998,802 km (0.08 R)
• M60: 47,856,359 km (0.075 R)
• M61: 48,090,330 km (0.089 R)
• M62: 48,441,885 km (0.1 R)
• M63: 48,911,921 km (0.099 R)
• M64: 50,926,855 km (0.098 R)
• M65: 53,331,641 km (0.038 R)
• M66: 54,060,332 km (0.119 R)
• M67: 59,126,913 km (0.119 R)
• M68: 61,018,129 km (0.073 R)
• M69: 62,801,186 km (0.083 R)
• M70: 65,118,607 km (0.053 R)
• M71: 65,507,561 km (0.119 R)
• M72: 66,678,913 km (0.109 R)
• M73: 67,071,009 km (0.032 R)
• M74: 68,251,785 km (0.111 R)
• M75: 70,102,011 km (0.113 R)
• M76: 70,899,966 km (0.109 R)
• M77: 73,581,657 km (0.062 R)
• M78: 76,159,977 km (0.12 R)
• M79: 76,432,993 km (0.106 R)
• M80: 78,216,200 km (0.103 R)
• M81: 80,429,650 km (0.09 R)
• M82: 80,568,626 km (0.083 R)
• M83: 80,846,878 km (0.115 R)
• M84: 81,404,429 km (0.073 R)
• M85: 87,620,969 km (0.068 R)
• M86: 88,193,629 km (0.107 R)
• M87: 92,819,495 km (0.03 R)
• M88: 92,965,203 km (0.088 R)
• M89: 93,695,540 km (0.107 R)
• M90: 94,574,427 km (0.108 R)
• M91: 94,721,183 km (0.114 R)
• M92: 95,014,844 km (0.101 R)
• M93: 96,931,342 km (0.043 R)
• M94: 97,968,504 km (0.04 R)

Kuiper Belt

Range: 31.2 - 54.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 187 - 13,348 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit