🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.35

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.67 AU - 0.91 AU

Year: 269 Days

Day: 43.2 Hours

Environment

Temp: 96 °C

Axial Tilt: 36.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.69

Radius: 0.86

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.89 AU - 0.91 AU

Year: 327 Days

Day: 22.5 Hours

Environment

Temp: 30 °C

Axial Tilt: 155.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.37 AU - 1.73 AU

Year: 739 Days

Day: 13.9 Hours

Environment

Temp: -62 °C

Axial Tilt: 19.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 73,445,390 km

• M1: 225,294 km (0.097 R)
• M2: 589,266 km (0.102 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.86

Radius: 1.72

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.84 AU - 2.08 AU

Year: 1051 Days

Day: 20.6 Hours

Environment

Temp: -77 °C

Axial Tilt: 32 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 73,445,390 km

• M1: 1,315,863 km (0.077 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.18

Radius: 1.07

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.9 AU - 2.38 AU

Year: 1199 Days

Day: 18.1 Hours

Environment

Temp: -83 °C

Axial Tilt: 3.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.34

Radius: 1.12

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 2.07 AU - 2.47 AU

Year: 1310 Days

Day: 31.1 Hours

Environment

Temp: -98 °C

Axial Tilt: 24 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.48

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.83 AU - 2.79 AU

Year: 1344 Days

Day: 33.4 Hours

Environment

Temp: -90 °C

Axial Tilt: 3.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.23

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 2.78 AU - 3.24 AU

Year: 1999 Days

Day: 32.7 Hours

Environment

Temp: -126 °C

Axial Tilt: 35.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 73,445,390 km

• M1: 2,202,679 km (0.071 R)

Asteroid Belt

Center: 4.73 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 6.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.4

Radius: 10.8

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 6.2 AU - 6.7 AU

Year: 6272 Days

Day: 7.5 Hours

Environment

Temp: -166 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 73,445,390 km

• M1: 325,824 km (0.111 R)
• M2: 422,913 km (0.099 R)
• M3: 491,279 km (0.057 R)
• M4: 585,975 km (0.032 R)
• M5: 653,144 km (0.068 R)
• M6: 735,274 km (0.08 R)
• M7: 1,018,163 km (0.103 R)
• M8: 1,305,092 km (0.098 R)
• M9: 1,749,697 km (0.058 R)
• M10: 2,148,824 km (0.104 R)
• M11: 2,424,533 km (0.099 R)
• M12: 2,538,077 km (0.082 R)
• M13: 2,751,105 km (0.118 R)
• M14: 2,909,529 km (0.095 R)
• M15: 2,990,013 km (0.092 R)
• M16: 3,235,952 km (0.032 R)
• M17: 3,424,744 km (0.086 R)
• M18: 3,531,108 km (0.103 R)
• M19: 3,617,127 km (0.112 R)
• M20: 3,703,894 km (0.08 R)
• M21: 4,492,125 km (0.105 R)
• M22: 4,562,137 km (0.107 R)
• M23: 4,632,448 km (0.108 R)
• M24: 4,845,774 km (0.076 R)
• M25: 5,208,399 km (0.112 R)
• M26: 5,655,099 km (0.116 R)
• M27: 5,781,509 km (0.096 R)
• M28: 6,427,323 km (0.054 R)
• M29: 6,532,789 km (0.11 R)
• M30: 6,852,630 km (0.106 R)
• M31: 7,232,309 km (0.114 R)
• M32: 7,314,588 km (0.109 R)
• M33: 7,591,045 km (0.087 R)
• M34: 7,758,594 km (0.084 R)
• M35: 7,899,216 km (0.07 R)
• M36: 9,054,262 km (0.111 R)
• M37: 9,651,456 km (0.1 R)
• M38: 9,863,436 km (0.098 R)
• M39: 10,571,034 km (0.104 R)
• M40: 10,758,331 km (0.047 R)
• M41: 10,915,259 km (0.118 R)
• M42: 11,199,645 km (0.12 R)
• M43: 11,518,587 km (0.102 R)
• M44: 11,646,942 km (0.078 R)
• M45: 11,775,746 km (0.112 R)
• M46: 12,002,536 km (0.077 R)
• M47: 12,197,911 km (0.106 R)
• M48: 12,296,047 km (0.113 R)
• M49: 12,625,013 km (0.105 R)
• M50: 12,890,250 km (0.102 R)
• M51: 13,258,111 km (0.072 R)
• M52: 13,426,409 km (0.068 R)
• M53: 14,555,125 km (0.106 R)
• M54: 15,536,487 km (0.104 R)
• M55: 15,678,455 km (0.113 R)
• M56: 15,856,626 km (0.114 R)
• M57: 16,142,807 km (0.103 R)
• M58: 16,430,783 km (0.109 R)
• M59: 17,268,381 km (0.096 R)
• M60: 17,452,237 km (0.08 R)
• M61: 17,896,244 km (0.065 R)
• M62: 18,119,743 km (0.082 R)
• M63: 18,269,191 km (0.108 R)
• M64: 18,381,539 km (0.048 R)
• M65: 18,984,718 km (0.109 R)
• M66: 19,632,776 km (0.075 R)
• M67: 21,461,759 km (0.052 R)
• M68: 22,818,612 km (0.09 R)
• M69: 23,060,961 km (0.102 R)
• M70: 23,304,207 km (0.1 R)
• M71: 23,629,732 km (0.034 R)
• M72: 24,244,280 km (0.07 R)
• M73: 24,408,987 km (0.118 R)
• M74: 24,574,143 km (0.029 R)
• M75: 25,071,706 km (0.052 R)
• M76: 25,363,571 km (0.036 R)
• M77: 26,288,086 km (0.101 R)
• M78: 26,797,018 km (0.106 R)
• M79: 27,394,960 km (0.063 R)
• M80: 29,170,986 km (0.03 R)

Planet 10 - Ice Giant

Semi-Major Axis: 12.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 838.3

Radius: 3.7

Gravity: 61.23 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 12.17 AU - 13.05 AU

Year: 17145 Days

Day: 20.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 73,445,390 km

• M1: 285,582 km (0.109 R)
• M2: 318,943 km (0.12 R)
• M3: 526,585 km (0.102 R)
• M4: 633,248 km (0.065 R)
• M5: 770,130 km (0.098 R)
• M6: 866,620 km (0.077 R)
• M7: 1,071,270 km (0.061 R)
• M8: 1,097,899 km (0.076 R)
• M9: 1,179,130 km (0.102 R)
• M10: 1,262,307 km (0.083 R)
• M11: 2,195,199 km (0.04 R)
• M12: 2,760,380 km (0.116 R)
• M13: 3,686,840 km (0.119 R)
• M14: 3,767,922 km (0.075 R)
• M15: 3,808,762 km (0.085 R)
• M16: 4,525,036 km (0.078 R)
• M17: 5,010,332 km (0.097 R)
• M18: 5,558,159 km (0.081 R)
• M19: 5,651,359 km (0.088 R)
• M20: 5,792,130 km (0.111 R)
• M21: 6,269,497 km (0.044 R)
• M22: 6,958,695 km (0.101 R)
• M23: 7,261,481 km (0.099 R)
• M24: 7,568,455 km (0.065 R)
• M25: 7,775,499 km (0.059 R)
• M26: 7,931,978 km (0.084 R)
• M27: 8,622,073 km (0.079 R)
• M28: 9,166,011 km (0.059 R)
• M29: 9,664,770 km (0.036 R)
• M30: 10,688,768 km (0.073 R)
• M31: 11,154,915 km (0.119 R)
• M32: 11,331,440 km (0.12 R)
• M33: 11,687,034 km (0.082 R)
• M34: 11,866,402 km (0.111 R)
• M35: 12,046,518 km (0.082 R)
• M36: 12,348,706 km (0.089 R)
• M37: 12,714,772 km (0.051 R)
• M38: 13,084,428 km (0.057 R)
• M39: 13,645,271 km (0.115 R)
• M40: 14,214,191 km (0.09 R)
• M41: 14,277,770 km (0.091 R)
• M42: 14,790,592 km (0.052 R)
• M43: 15,900,309 km (0.114 R)
• M44: 16,498,551 km (0.062 R)
• M45: 16,565,421 km (0.095 R)
• M46: 18,060,502 km (0.104 R)
• M47: 18,893,912 km (0.059 R)
• M48: 18,964,073 km (0.074 R)
• M49: 19,104,246 km (0.094 R)
• M50: 19,882,155 km (0.103 R)
• M51: 20,670,237 km (0.063 R)
• M52: 21,468,641 km (0.08 R)
• M53: 22,573,272 km (0.084 R)
• M54: 22,870,971 km (0.047 R)
• M55: 23,395,162 km (0.064 R)
• M56: 23,470,410 km (0.092 R)
• M57: 23,771,999 km (0.078 R)
• M58: 24,302,922 km (0.098 R)
• M59: 25,685,805 km (0.068 R)
• M60: 26,857,605 km (0.029 R)
• M61: 27,331,232 km (0.102 R)
• M62: 27,807,701 km (0.098 R)
• M63: 29,577,593 km (0.104 R)
• M64: 30,394,099 km (0.082 R)
• M65: 30,476,228 km (0.055 R)
• M66: 31,549,593 km (0.101 R)
• M67: 33,225,238 km (0.07 R)
• M68: 34,073,757 km (0.056 R)
• M69: 35,878,805 km (0.086 R)
• M70: 37,979,309 km (0.115 R)
• M71: 38,067,721 km (0.068 R)
• M72: 38,421,969 km (0.115 R)
• M73: 38,510,681 km (0.056 R)
• M74: 38,599,542 km (0.12 R)
• M75: 39,223,066 km (0.114 R)
• M76: 39,491,295 km (0.073 R)
• M77: 39,580,754 km (0.025 R)
• M78: 40,660,552 km (0.117 R)
• M79: 40,751,058 km (0.107 R)
• M80: 47,434,493 km (0.051 R)
• M81: 47,720,374 km (0.045 R)
• M82: 51,096,200 km (0.079 R)
• M83: 51,389,113 km (0.096 R)
• M84: 55,147,460 km (0.073 R)
• M85: 57,667,735 km (0.088 R)
• M86: 58,278,244 km (0.041 R)
• M87: 61,051,789 km (0.106 R)
• M88: 61,258,982 km (0.093 R)
• M89: 61,777,787 km (0.116 R)
• M90: 62,924,455 km (0.102 R)
• M91: 64,394,104 km (0.088 R)
• M92: 66,726,185 km (0.036 R)
• M93: 68,224,558 km (0.103 R)
• M94: 68,439,530 km (0.088 R)
• M95: 70,927,791 km (0.077 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 405 - 11,547 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit