🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.8

Radius: 12.7

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.47 AU - 0.61 AU

Year: 265 Days

Day: 5 Hours

Environment

Temp: -154 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 73,462,814 km

• M1: 157,975 km (0.091 R)
• M2: 608,564 km (0.117 R)
• M3: 1,040,304 km (0.089 R)
• M4: 1,440,179 km (0.094 R)
• M5: 1,842,148 km (0.098 R)
• M6: 2,585,949 km (0.083 R)
• M7: 3,130,934 km (0.108 R)
• M8: 3,685,044 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 955.7

Radius: 13.2

Gravity: 5.48 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.52 AU - 0.62 AU

Year: 287 Days

Day: 9.7 Hours

Environment

Temp: -137 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 73,462,814 km

• M1: 164,109 km (0.104 R)
• M2: 671,545 km (0.098 R)
• M3: 1,082,640 km (0.085 R)
• M4: 1,535,024 km (0.081 R)
• M5: 1,984,266 km (0.114 R)
• M6: 2,595,074 km (0.115 R)
• M7: 3,564,618 km (0.07 R)
• M8: 4,133,688 km (0.118 R)
• M9: 4,706,947 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 329.5

Radius: 10.4

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.89 AU - 1.25 AU

Year: 738 Days

Day: 8.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 73,462,814 km

• M1: 130,599 km (0.051 R)
• M2: 490,531 km (0.039 R)
• M3: 1,045,540 km (0.075 R)
• M4: 1,459,926 km (0.094 R)
• M5: 2,184,578 km (0.06 R)
• M6: 3,041,325 km (0.113 R)
• M7: 3,969,430 km (0.119 R)
• M8: 4,727,742 km (0.051 R)
• M9: 5,141,679 km (0.048 R)
• M10: 5,684,270 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 697.6

Radius: 10.4

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 1.34 AU - 1.52 AU

Year: 1140 Days

Day: 10.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 73,462,814 km

• M1: 129,552 km (0.074 R)
• M2: 547,079 km (0.084 R)
• M3: 913,445 km (0.105 R)
• M4: 1,400,386 km (0.074 R)
• M5: 1,733,091 km (0.1 R)
• M6: 2,205,521 km (0.094 R)
• M7: 2,788,355 km (0.068 R)
• M8: 3,670,085 km (0.098 R)
• M9: 4,091,203 km (0.117 R)
• M10: 5,089,619 km (0.098 R)
• M11: 5,552,475 km (0.075 R)
• M12: 6,470,407 km (0.117 R)
• M13: 6,797,877 km (0.081 R)
• M14: 7,235,301 km (0.093 R)
• M15: 8,522,142 km (0.068 R)
• M16: 9,560,501 km (0.118 R)
• M17: 10,079,157 km (0.104 R)
• M18: 11,040,472 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 841.1

Radius: 12.2

Gravity: 5.65 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.53 AU - 1.77 AU

Year: 1413 Days

Day: 8.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 73,462,814 km

• M1: 151,692 km (0.086 R)
• M2: 558,150 km (0.105 R)
• M3: 956,379 km (0.088 R)
• M4: 2,033,334 km (0.094 R)
• M5: 2,689,321 km (0.093 R)
• M6: 3,729,026 km (0.072 R)
• M7: 4,148,199 km (0.047 R)
• M8: 5,123,877 km (0.113 R)
• M9: 5,711,198 km (0.12 R)
• M10: 6,588,739 km (0.042 R)
• M11: 6,969,316 km (0.087 R)
• M12: 9,961,423 km (0.047 R)
• M13: 11,447,827 km (0.084 R)
• M14: 13,639,735 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.1

Radius: 8.3

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.81 AU - 2.13 AU

Year: 1844 Days

Day: 12.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,462,814 km

• M1: 103,223 km (0.036 R)
• M2: 393,592 km (0.066 R)
• M3: 821,891 km (0.108 R)
• M4: 1,499,719 km (0.059 R)
• M5: 1,801,308 km (0.058 R)
• M6: 2,190,412 km (0.053 R)
• M7: 2,466,570 km (0.112 R)
• M8: 3,583,467 km (0.091 R)
• M9: 4,568,420 km (0.101 R)
• M10: 4,956,028 km (0.105 R)
• M11: 5,723,615 km (0.086 R)
• M12: 6,710,063 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.3

Radius: 11.3

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.54 AU - 3.32 AU

Year: 3344 Days

Day: 6.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 73,462,814 km

• M1: 140,472 km (0.087 R)
• M2: 864,526 km (0.087 R)
• M3: 1,238,222 km (0.092 R)
• M4: 2,160,492 km (0.103 R)
• M5: 2,555,132 km (0.051 R)
• M6: 3,079,771 km (0.084 R)
• M7: 4,645,762 km (0.098 R)
• M8: 5,050,873 km (0.061 R)
• M9: 5,603,188 km (0.029 R)
• M10: 6,828,844 km (0.086 R)
• M11: 7,474,658 km (0.061 R)
• M12: 8,096,835 km (0.11 R)
• M13: 8,519,449 km (0.081 R)
• M14: 9,163,767 km (0.105 R)
• M15: 9,623,033 km (0.069 R)
• M16: 10,897,457 km (0.109 R)
• M17: 12,366,059 km (0.097 R)
• M18: 13,687,457 km (0.056 R)
• M19: 16,197,410 km (0.036 R)
• M20: 17,027,828 km (0.074 R)
• M21: 17,669,005 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 631.6

Radius: 3.3

Gravity: 58 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 6.06 AU - 7.02 AU

Year: 11153 Days

Day: 15.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 73,462,814 km

• M1: 41,139 km (0.079 R)
• M2: 151,243 km (0.051 R)
• M3: 505,342 km (0.111 R)
• M4: 675,135 km (0.11 R)
• M5: 787,334 km (0.079 R)
• M6: 1,263,803 km (0.081 R)
• M7: 1,826,291 km (0.045 R)
• M8: 2,857,619 km (0.083 R)
• M9: 3,084,110 km (0.043 R)
• M10: 3,702,547 km (0.038 R)
• M11: 4,429,144 km (0.063 R)
• M12: 7,009,109 km (0.081 R)
• M13: 7,171,872 km (0.075 R)
• M14: 7,295,439 km (0.111 R)
• M15: 7,847,904 km (0.116 R)
• M16: 8,611,452 km (0.104 R)
• M17: 8,987,541 km (0.097 R)
• M18: 11,197,999 km (0.053 R)
• M19: 11,308,851 km (0.102 R)
• M20: 14,984,620 km (0.111 R)
• M21: 15,735,153 km (0.09 R)
• M22: 19,066,847 km (0.061 R)
• M23: 20,356,231 km (0.092 R)
• M24: 21,445,902 km (0.045 R)
• M25: 26,881,690 km (0.086 R)
• M26: 31,046,944 km (0.06 R)
• M27: 35,383,487 km (0.077 R)
• M28: 38,320,392 km (0.107 R)
• M29: 39,462,422 km (0.089 R)
• M30: 39,977,039 km (0.025 R)
• M31: 43,981,176 km (0.081 R)
• M32: 49,426,089 km (0.096 R)
• M33: 49,575,089 km (0.096 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 355.3

Radius: 5.3

Gravity: 12.65 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 8.32 AU - 9.62 AU

Year: 17915 Days

Day: 16.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 73,462,814 km

• M1: 76,445 km (0.083 R)
• M2: 448,943 km (0.099 R)
• M3: 1,121,834 km (0.105 R)
• M4: 1,407,267 km (0.084 R)
• M5: 1,789,191 km (0.056 R)
• M6: 2,735,397 km (0.097 R)
• M7: 3,278,886 km (0.09 R)
• M8: 3,697,461 km (0.086 R)
• M9: 5,305,788 km (0.091 R)
• M10: 6,263,064 km (0.073 R)
• M11: 6,459,636 km (0.074 R)
• M12: 6,989,811 km (0.106 R)
• M13: 7,861,667 km (0.108 R)
• M14: 8,561,486 km (0.085 R)
• M15: 9,558,107 km (0.039 R)
• M16: 10,300,113 km (0.102 R)
• M17: 10,518,974 km (0.059 R)
• M18: 13,329,170 km (0.05 R)
• M19: 15,362,953 km (0.071 R)
• M20: 17,055,653 km (0.07 R)
• M21: 17,986,451 km (0.075 R)
• M22: 20,203,641 km (0.046 R)
• M23: 29,776,708 km (0.041 R)
• M24: 30,445,261 km (0.103 R)
• M25: 36,031,694 km (0.099 R)
• M26: 40,882,256 km (0.109 R)
• M27: 43,108,122 km (0.042 R)
• M28: 43,534,177 km (0.113 R)
• M29: 51,215,429 km (0.108 R)
• M30: 55,793,274 km (0.096 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 632.7

Radius: 6.7

Gravity: 14.09 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 9.05 AU - 10.09 AU

Year: 19742 Days

Day: 19.7 Hours

Environment

Temp: -242 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 73,462,814 km

• M1: 92,451 km (0.115 R)
• M2: 351,256 km (0.101 R)
• M3: 706,252 km (0.116 R)
• M4: 1,085,033 km (0.109 R)
• M5: 2,817,377 km (0.104 R)
• M6: 3,535,596 km (0.05 R)
• M7: 4,238,257 km (0.112 R)
• M8: 6,123,340 km (0.115 R)
• M9: 6,593,227 km (0.089 R)
• M10: 7,997,353 km (0.096 R)
• M11: 12,027,370 km (0.109 R)
• M12: 15,001,226 km (0.071 R)
• M13: 18,257,523 km (0.08 R)
• M14: 19,682,293 km (0.107 R)
• M15: 21,275,660 km (0.07 R)
• M16: 23,565,704 km (0.12 R)
• M17: 24,717,009 km (0.066 R)
• M18: 26,905,476 km (0.04 R)
• M19: 27,358,159 km (0.053 R)
• M20: 34,905,671 km (0.036 R)
• M21: 35,308,987 km (0.033 R)
• M22: 39,369,821 km (0.114 R)
• M23: 41,587,460 km (0.056 R)
• M24: 42,803,541 km (0.094 R)
• M25: 43,265,649 km (0.084 R)
• M26: 44,199,888 km (0.089 R)
• M27: 59,679,677 km (0.064 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 417 - 16,964 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit