🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.62

Radius: 0.83

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.45 AU - 0.57 AU

Year: 134 Days

Day: 39.5 Hours

Environment

Temp: 171 °C

Axial Tilt: 20.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 72,061,182 km

• M1: 158,574 km (0.046 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.8 AU - 1 AU

Year: 313 Days

Day: 34.6 Hours

Environment

Temp: 126 °C

Axial Tilt: 35.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.95 AU - 1.01 AU

Year: 356 Days

Day: 20.1 Hours

Environment

Temp: 44 °C

Axial Tilt: 23.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.67

Radius: 1.23

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.92 AU - 1.34 AU

Year: 441 Days

Day: 34.6 Hours

Environment

Temp: 2 °C

Axial Tilt: 1.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.02

Radius: 1.32

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.11 AU - 1.55 AU

Year: 563 Days

Day: 44.5 Hours

Environment

Temp: -20 °C

Axial Tilt: 18.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 72,061,182 km

• M1: 552,166 km (0.056 R)
• M2: 699,968 km (0.048 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.93

Radius: 0.97

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.38 AU - 1.42 AU

Year: 608 Days

Day: 39.9 Hours

Environment

Temp: -34 °C

Axial Tilt: 11.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.9

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.8 AU - 2.62 AU

Year: 1206 Days

Day: 28.5 Hours

Environment

Temp: -79 °C

Axial Tilt: 4.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 72,061,182 km

• M1: 70,012 km (0.066 R)
• M2: 570,117 km (0.091 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988.3

Radius: 11.4

Gravity: 7.6 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 7.59 AU - 12.25 AU

Year: 11469 Days

Day: 9.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (87)

Outer Limit: 72,061,182 km

• M1: 250,576 km (0.102 R)
• M2: 651,349 km (0.116 R)
• M3: 725,849 km (0.092 R)
• M4: 990,188 km (0.078 R)
• M5: 1,481,468 km (0.058 R)
• M6: 2,042,161 km (0.032 R)
• M7: 2,185,026 km (0.07 R)
• M8: 2,390,724 km (0.044 R)
• M9: 2,480,781 km (0.045 R)
• M10: 2,948,873 km (0.101 R)
• M11: 4,255,012 km (0.082 R)
• M12: 4,401,917 km (0.119 R)
• M13: 5,357,997 km (0.102 R)
• M14: 6,502,720 km (0.031 R)
• M15: 6,672,215 km (0.12 R)
• M16: 6,972,607 km (0.086 R)
• M17: 7,631,287 km (0.056 R)
• M18: 7,990,770 km (0.094 R)
• M19: 8,494,167 km (0.077 R)
• M20: 10,114,312 km (0.065 R)
• M21: 10,858,861 km (0.109 R)
• M22: 11,724,135 km (0.099 R)
• M23: 12,400,766 km (0.039 R)
• M24: 14,395,205 km (0.032 R)
• M25: 15,007,210 km (0.049 R)
• M26: 15,119,408 km (0.119 R)
• M27: 15,514,346 km (0.063 R)
• M28: 16,256,651 km (0.102 R)
• M29: 16,719,357 km (0.077 R)
• M30: 17,186,252 km (0.104 R)
• M31: 17,303,687 km (0.097 R)
• M32: 17,598,394 km (0.066 R)
• M33: 17,954,288 km (0.094 R)
• M34: 18,432,402 km (0.08 R)
• M35: 18,612,817 km (0.111 R)
• M36: 19,218,390 km (0.106 R)
• M37: 19,584,904 km (0.101 R)
• M38: 19,707,575 km (0.062 R)
• M39: 20,200,799 km (0.065 R)
• M40: 20,324,666 km (0.099 R)
• M41: 21,514,867 km (0.073 R)
• M42: 22,022,602 km (0.113 R)
• M43: 22,214,087 km (0.064 R)
• M44: 22,598,703 km (0.086 R)
• M45: 22,791,834 km (0.105 R)
• M46: 23,439,593 km (0.104 R)
• M47: 23,765,716 km (0.103 R)
• M48: 23,962,138 km (0.081 R)
• M49: 24,290,655 km (0.049 R)
• M50: 25,285,331 km (0.108 R)
• M51: 25,619,832 km (0.113 R)
• M52: 26,632,161 km (0.089 R)
• M53: 27,245,811 km (0.038 R)
• M54: 28,348,198 km (0.075 R)
• M55: 28,626,151 km (0.12 R)
• M56: 29,254,761 km (0.109 R)
• M57: 30,383,477 km (0.032 R)
• M58: 31,670,168 km (0.109 R)
• M59: 35,187,663 km (0.106 R)
• M60: 35,262,312 km (0.048 R)
• M61: 37,448,386 km (0.108 R)
• M62: 37,600,677 km (0.116 R)
• M63: 38,750,037 km (0.088 R)
• M64: 38,827,080 km (0.101 R)
• M65: 39,600,352 km (0.093 R)
• M66: 40,612,980 km (0.053 R)
• M67: 41,397,920 km (0.086 R)
• M68: 42,743,552 km (0.071 R)
• M69: 42,823,138 km (0.1 R)
• M70: 42,982,460 km (0.078 R)
• M71: 43,461,772 km (0.049 R)
• M72: 44,184,030 km (0.094 R)
• M73: 44,910,178 km (0.098 R)
• M74: 45,072,043 km (0.098 R)
• M75: 45,315,289 km (0.116 R)
• M76: 45,558,984 km (0.115 R)
• M77: 47,854,115 km (0.099 R)
• M78: 48,019,570 km (0.084 R)
• M79: 48,433,807 km (0.12 R)
• M80: 51,197,777 km (0.12 R)
• M81: 53,325,507 km (0.076 R)
• M82: 53,582,816 km (0.078 R)
• M83: 53,840,423 km (0.116 R)
• M84: 55,048,426 km (0.072 R)
• M85: 55,655,793 km (0.105 R)
• M86: 58,107,254 km (0.087 R)
• M87: 58,725,691 km (0.065 R)

Planet 9 - Gas Giant

Semi-Major Axis: 12.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 941.9

Radius: 11

Gravity: 7.78 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 10.33 AU - 14.15 AU

Year: 15720 Days

Day: 15 Hours

Environment

Temp: -180 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (90)

Outer Limit: 72,061,182 km

• M1: 255,962 km (0.062 R)
• M2: 340,186 km (0.085 R)
• M3: 421,118 km (0.044 R)
• M4: 607,816 km (0.101 R)
• M5: 916,885 km (0.104 R)
• M6: 1,328,728 km (0.104 R)
• M7: 1,584,690 km (0.066 R)
• M8: 1,764,208 km (0.118 R)
• M9: 2,111,275 km (0.117 R)
• M10: 2,548,998 km (0.053 R)
• M11: 2,725,075 km (0.103 R)
• M12: 3,430,578 km (0.104 R)
• M13: 4,067,117 km (0.068 R)
• M14: 4,441,262 km (0.096 R)
• M15: 4,653,990 km (0.069 R)
• M16: 5,133,750 km (0.093 R)
• M17: 5,312,220 km (0.111 R)
• M18: 5,767,447 km (0.117 R)
• M19: 6,093,570 km (0.108 R)
• M20: 7,307,108 km (0.099 R)
• M21: 7,710,873 km (0.061 R)
• M22: 7,813,048 km (0.119 R)
• M23: 9,893,057 km (0.098 R)
• M24: 10,509,101 km (0.061 R)
• M25: 10,907,630 km (0.11 R)
• M26: 12,490,973 km (0.081 R)
• M27: 12,913,139 km (0.12 R)
• M28: 13,462,911 km (0.116 R)
• M29: 15,221,583 km (0.083 R)
• M30: 15,997,248 km (0.119 R)
• M31: 16,127,847 km (0.085 R)
• M32: 17,654,344 km (0.109 R)
• M33: 17,789,281 km (0.113 R)
• M34: 17,992,286 km (0.113 R)
• M35: 18,196,038 km (0.097 R)
• M36: 18,743,267 km (0.107 R)
• M37: 20,134,976 km (0.111 R)
• M38: 21,343,876 km (0.084 R)
• M39: 22,065,985 km (0.11 R)
• M40: 22,649,566 km (0.085 R)
• M41: 23,460,088 km (0.117 R)
• M42: 23,906,189 km (0.105 R)
• M43: 24,130,286 km (0.089 R)
• M44: 24,430,230 km (0.11 R)
• M45: 24,806,917 km (0.092 R)
• M46: 24,958,011 km (0.092 R)
• M47: 25,489,682 km (0.051 R)
• M48: 25,642,272 km (0.085 R)
• M49: 26,332,516 km (0.084 R)
• M50: 26,564,094 km (0.093 R)
• M51: 30,116,445 km (0.112 R)
• M52: 31,251,893 km (0.055 R)
• M53: 32,236,097 km (0.077 R)
• M54: 34,066,876 km (0.118 R)
• M55: 35,164,475 km (0.106 R)
• M56: 35,419,540 km (0.103 R)
• M57: 35,504,661 km (0.077 R)
• M58: 36,188,024 km (0.085 R)
• M59: 37,134,829 km (0.072 R)
• M60: 38,701,717 km (0.035 R)
• M61: 39,140,787 km (0.09 R)
• M62: 39,228,750 km (0.106 R)
• M63: 40,023,863 km (0.04 R)
• M64: 41,181,601 km (0.099 R)
• M65: 41,360,819 km (0.111 R)
• M66: 42,440,766 km (0.072 R)
• M67: 42,531,273 km (0.045 R)
• M68: 43,347,928 km (0.092 R)
• M69: 44,261,522 km (0.114 R)
• M70: 45,736,407 km (0.074 R)
• M71: 48,261,470 km (0.095 R)
• M72: 50,448,142 km (0.111 R)
• M73: 50,639,777 km (0.118 R)
• M74: 54,917,229 km (0.11 R)
• M75: 57,699,001 km (0.074 R)
• M76: 58,300,983 km (0.056 R)
• M77: 59,511,379 km (0.081 R)
• M78: 59,815,213 km (0.048 R)
• M79: 60,018,067 km (0.109 R)
• M80: 60,221,221 km (0.117 R)
• M81: 60,628,127 km (0.107 R)
• M82: 61,342,308 km (0.105 R)
• M83: 61,854,232 km (0.052 R)
• M84: 62,059,330 km (0.073 R)
• M85: 62,264,728 km (0.048 R)
• M86: 64,642,886 km (0.12 R)
• M87: 64,955,246 km (0.11 R)
• M88: 66,734,862 km (0.108 R)
• M89: 70,021,079 km (0.091 R)
• M90: 71,845,574 km (0.104 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 328 - 17,621 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit