🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.42

Radius: 1.15

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.62 AU - 0.62 AU

Year: 310 Days

Day: 15.5 Hours

Environment

Temp: -127 °C

Axial Tilt: 21.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.1

Radius: 11.6

Gravity: 5.82 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.69 AU - 0.73 AU

Year: 380 Days

Day: 12 Hours

Environment

Temp: -146 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 48,526,564 km

• M1: 144,212 km (0.092 R)
• M2: 598,990 km (0.08 R)
• M3: 1,227,750 km (0.108 R)
• M4: 2,786,111 km (0.069 R)
• M5: 3,883,411 km (0.087 R)
• M6: 4,390,249 km (0.104 R)
• M7: 5,668,712 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22.2

Radius: 14.9

Gravity: 0.1 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.24 AU - 1.68 AU

Year: 1122 Days

Day: 6.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 48,526,564 km

• M1: 185,352 km (0.114 R)
• M2: 1,080,994 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 105.1

Radius: 13.9

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 2.6 AU - 3.84 AU

Year: 3674 Days

Day: 11.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 48,526,564 km

• M1: 172,935 km (0.108 R)
• M2: 697,126 km (0.053 R)
• M3: 1,309,879 km (0.108 R)
• M4: 2,173,208 km (0.115 R)
• M5: 2,895,317 km (0.104 R)
• M6: 3,329,001 km (0.034 R)
• M7: 4,366,463 km (0.066 R)
• M8: 4,802,540 km (0.11 R)
• M9: 5,351,864 km (0.103 R)
• M10: 6,408,623 km (0.062 R)
• M11: 7,127,591 km (0.049 R)
• M12: 9,116,045 km (0.068 R)
• M13: 10,621,449 km (0.106 R)
• M14: 12,738,857 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736.4

Radius: 11.6

Gravity: 5.47 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 4.54 AU - 7.18 AU

Year: 9019 Days

Day: 11.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 48,526,564 km

• M1: 144,512 km (0.1 R)
• M2: 515,365 km (0.075 R)
• M3: 901,926 km (0.08 R)
• M4: 1,440,777 km (0.114 R)
• M5: 1,846,786 km (0.077 R)
• M6: 2,496,489 km (0.082 R)
• M7: 3,602,766 km (0.069 R)
• M8: 4,010,121 km (0.073 R)
• M9: 5,357,249 km (0.1 R)
• M10: 5,959,381 km (0.049 R)
• M11: 7,998,101 km (0.068 R)
• M12: 9,059,647 km (0.081 R)
• M13: 9,481,214 km (0.102 R)
• M14: 11,246,618 km (0.091 R)
• M15: 12,462,699 km (0.098 R)
• M16: 13,102,829 km (0.109 R)
• M17: 13,642,578 km (0.12 R)
• M18: 15,550,100 km (0.045 R)
• M19: 17,057,748 km (0.117 R)
• M20: 17,993,183 km (0.032 R)
• M21: 18,436,292 km (0.092 R)
• M22: 20,681,606 km (0.108 R)
• M23: 21,414,038 km (0.045 R)
• M24: 23,452,009 km (0.079 R)
• M25: 25,062,879 km (0.095 R)
• M26: 27,324,051 km (0.111 R)
• M27: 28,504,229 km (0.075 R)
• M28: 30,546,240 km (0.041 R)
• M29: 30,966,011 km (0.093 R)
• M30: 35,378,700 km (0.091 R)
• M31: 36,191,764 km (0.085 R)
• M32: 36,780,132 km (0.089 R)
• M33: 39,074,216 km (0.098 R)

Asteroid Belt

Center: 6.19 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 495.6

Radius: 5.6

Gravity: 15.8 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 6.12 AU - 6.92 AU

Year: 10585 Days

Day: 19.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 48,526,564 km

• M1: 74,051 km (0.068 R)
• M2: 288,873 km (0.056 R)
• M3: 465,399 km (0.099 R)
• M4: 928,554 km (0.103 R)
• M5: 1,102,686 km (0.106 R)
• M6: 1,399,039 km (0.112 R)
• M7: 1,644,380 km (0.074 R)
• M8: 1,966,614 km (0.094 R)
• M9: 3,078,126 km (0.099 R)
• M10: 3,423,248 km (0.097 R)
• M11: 4,356,739 km (0.091 R)
• M12: 4,943,312 km (0.111 R)
• M13: 6,164,928 km (0.076 R)
• M14: 7,575,337 km (0.064 R)
• M15: 10,964,327 km (0.093 R)
• M16: 12,957,420 km (0.108 R)
• M17: 14,163,029 km (0.118 R)
• M18: 14,538,819 km (0.091 R)
• M19: 20,761,342 km (0.111 R)
• M20: 22,576,413 km (0.062 R)
• M21: 28,157,311 km (0.051 R)
• M22: 31,847,741 km (0.099 R)
• M23: 39,797,821 km (0.033 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 148.1

Radius: 7.1

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 6.33 AU - 9.27 AU

Year: 13851 Days

Day: 24.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,526,564 km

• M1: 88,412 km (0.109 R)
• M2: 846,126 km (0.106 R)
• M3: 1,130,212 km (0.034 R)
• M4: 1,358,199 km (0.081 R)
• M5: 1,617,153 km (0.101 R)
• M6: 3,023,523 km (0.114 R)
• M7: 3,403,052 km (0.119 R)
• M8: 4,387,107 km (0.082 R)
• M9: 5,734,535 km (0.04 R)
• M10: 8,142,313 km (0.12 R)
• M11: 16,558,689 km (0.079 R)
• M12: 29,611,403 km (0.047 R)
• M13: 31,439,937 km (0.087 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 739.8

Radius: 4.8

Gravity: 32.11 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 6.81 AU - 8.87 AU

Year: 13957 Days

Day: 15.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 48,526,564 km

• M1: 59,690 km (0.093 R)
• M2: 262,694 km (0.057 R)
• M3: 417,528 km (0.05 R)
• M4: 749,336 km (0.089 R)
• M5: 1,835,117 km (0.086 R)
• M6: 2,032,885 km (0.094 R)
• M7: 2,205,222 km (0.113 R)
• M8: 2,579,366 km (0.057 R)
• M9: 5,726,008 km (0.114 R)
• M10: 6,389,774 km (0.113 R)
• M11: 11,603,708 km (0.099 R)
• M12: 12,344,218 km (0.053 R)
• M13: 14,896,956 km (0.071 R)
• M14: 15,696,856 km (0.089 R)
• M15: 15,994,705 km (0.117 R)
• M16: 16,601,773 km (0.114 R)
• M17: 18,931,012 km (0.101 R)
• M18: 20,305,069 km (0.111 R)
• M19: 20,926,498 km (0.063 R)
• M20: 22,114,305 km (0.104 R)
• M21: 23,249,903 km (0.096 R)
• M22: 24,028,260 km (0.113 R)
• M23: 28,843,816 km (0.046 R)
• M24: 30,658,887 km (0.102 R)
• M25: 37,081,722 km (0.089 R)
• M26: 41,307,712 km (0.083 R)
• M27: 42,161,018 km (0.067 R)
• M28: 44,494,147 km (0.081 R)
• M29: 53,671,976 km (0.108 R)
• M30: 57,459,046 km (0.043 R)
• M31: 58,166,195 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 209

Radius: 7

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 7.1 AU - 11.78 AU

Year: 18441 Days

Day: 16.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 48,526,564 km

• M1: 87,365 km (0.108 R)
• M2: 360,232 km (0.069 R)
• M3: 646,263 km (0.047 R)
• M4: 2,744,971 km (0.098 R)
• M5: 5,716,434 km (0.073 R)
• M6: 6,742,077 km (0.045 R)
• M7: 7,630,090 km (0.094 R)
• M8: 8,777,356 km (0.09 R)
• M9: 9,489,442 km (0.105 R)
• M10: 10,497,731 km (0.08 R)
• M11: 10,760,575 km (0.052 R)
• M12: 16,278,193 km (0.094 R)
• M13: 17,277,956 km (0.055 R)
• M14: 19,795,538 km (0.033 R)
• M15: 22,460,774 km (0.068 R)
• M16: 22,722,271 km (0.111 R)
• M17: 23,879,111 km (0.057 R)
• M18: 27,089,332 km (0.069 R)
• M19: 27,884,295 km (0.1 R)
• M20: 29,313,104 km (0.088 R)
• M21: 32,426,535 km (0.117 R)
• M22: 34,697,880 km (0.079 R)
• M23: 37,560,884 km (0.082 R)
• M24: 38,673,892 km (0.038 R)
• M25: 40,063,806 km (0.058 R)
• M26: 43,481,220 km (0.048 R)
• M27: 44,433,410 km (0.072 R)
• M28: 47,087,875 km (0.117 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 289 - 19,154 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit