🌌 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 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.03

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.52 AU - 0.56 AU

Year: 256 Days

Day: 36.9 Hours

Environment

Temp: -115 °C

Axial Tilt: 9.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 177.4

Radius: 13.1

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.81 AU - 1.25 AU

Year: 675 Days

Day: 13.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 56,138,322 km

• M1: 162,912 km (0.078 R)
• M2: 577,597 km (0.036 R)
• M3: 1,070,672 km (0.118 R)
• M4: 1,578,557 km (0.12 R)
• M5: 2,030,941 km (0.108 R)
• M6: 2,489,159 km (0.111 R)
• M7: 2,905,490 km (0.116 R)
• M8: 3,492,063 km (0.088 R)
• M9: 3,918,118 km (0.099 R)
• M10: 4,567,971 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289.9

Radius: 8

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.49 AU - 2.47 AU

Year: 1799 Days

Day: 11.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 56,138,322 km

• M1: 99,483 km (0.095 R)
• M2: 438,172 km (0.118 R)
• M3: 694,284 km (0.103 R)
• M4: 1,725,911 km (0.057 R)
• M5: 2,317,720 km (0.093 R)
• M6: 2,604,499 km (0.083 R)
• M7: 3,121,808 km (0.108 R)
• M8: 3,642,708 km (0.117 R)
• M9: 4,134,137 km (0.097 R)
• M10: 4,540,295 km (0.062 R)
• M11: 5,090,068 km (0.1 R)
• M12: 6,119,002 km (0.071 R)
• M13: 6,885,990 km (0.104 R)
• M14: 7,432,022 km (0.112 R)
• M15: 9,009,981 km (0.116 R)
• M16: 9,816,014 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.6

Radius: 12.4

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 3.52 AU - 3.86 AU

Year: 4577 Days

Day: 6.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 96.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,138,322 km

• M1: 161,715 km (0.038 R)
• M2: 563,984 km (0.103 R)
• M3: 1,331,421 km (0.067 R)
• M4: 1,896,153 km (0.035 R)
• M5: 2,518,031 km (0.1 R)
• M6: 3,194,962 km (0.056 R)
• M7: 4,150,294 km (0.06 R)
• M8: 4,835,302 km (0.103 R)
• M9: 5,453,291 km (0.099 R)
• M10: 6,494,492 km (0.105 R)
• M11: 7,384,899 km (0.09 R)
• M12: 8,243,142 km (0.116 R)
• M13: 8,968,841 km (0.103 R)
• M14: 10,243,864 km (0.094 R)
• M15: 10,679,942 km (0.12 R)
• M16: 16,332,796 km (0.071 R)
• M17: 18,675,948 km (0.079 R)
• M18: 19,065,351 km (0.1 R)
• M19: 21,024,784 km (0.099 R)
• M20: 21,588,319 km (0.058 R)
• M21: 22,892,813 km (0.086 R)
• M22: 28,554,194 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 252.4

Radius: 10.2

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 4.83 AU - 5.73 AU

Year: 7834 Days

Day: 7.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 56,138,322 km

• M1: 127,457 km (0.113 R)
• M2: 462,407 km (0.088 R)
• M3: 1,115,701 km (0.087 R)
• M4: 1,540,708 km (0.102 R)
• M5: 2,265,660 km (0.118 R)
• M6: 3,423,398 km (0.045 R)
• M7: 4,455,473 km (0.086 R)
• M8: 4,885,418 km (0.105 R)
• M9: 6,128,726 km (0.07 R)
• M10: 7,259,386 km (0.095 R)
• M11: 7,820,378 km (0.119 R)
• M12: 9,887,372 km (0.107 R)
• M13: 11,624,503 km (0.056 R)
• M14: 15,294,138 km (0.085 R)
• M15: 16,334,442 km (0.089 R)
• M16: 19,075,524 km (0.041 R)
• M17: 20,417,267 km (0.104 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 320.7

Radius: 6.8

Gravity: 6.94 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 5.52 AU - 6.52 AU

Year: 9537 Days

Day: 22.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 56,138,322 km

• M1: 84,523 km (0.03 R)
• M2: 422,464 km (0.084 R)
• M3: 754,123 km (0.089 R)
• M4: 1,263,504 km (0.039 R)
• M5: 1,735,335 km (0.097 R)
• M6: 2,301,862 km (0.062 R)
• M7: 2,925,087 km (0.119 R)
• M8: 3,495,803 km (0.072 R)
• M9: 4,291,365 km (0.082 R)
• M10: 6,539,073 km (0.058 R)
• M11: 7,104,104 km (0.093 R)
• M12: 7,548,858 km (0.118 R)
• M13: 8,453,028 km (0.06 R)
• M14: 8,868,012 km (0.059 R)
• M15: 9,166,460 km (0.109 R)
• M16: 11,749,866 km (0.04 R)
• M17: 12,214,217 km (0.105 R)
• M18: 12,637,430 km (0.055 R)
• M19: 14,781,766 km (0.099 R)
• M20: 15,080,961 km (0.072 R)
• M21: 17,621,283 km (0.047 R)
• M22: 18,366,879 km (0.111 R)
• M23: 18,852,324 km (0.098 R)
• M24: 19,275,087 km (0.11 R)
• M25: 21,180,515 km (0.045 R)
• M26: 21,408,203 km (0.098 R)
• M27: 24,937,666 km (0.117 R)
• M28: 26,486,901 km (0.09 R)
• M29: 27,464,673 km (0.076 R)
• M30: 31,518,327 km (0.075 R)
• M31: 32,615,926 km (0.099 R)
• M32: 35,311,231 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 287.9

Radius: 7.2

Gravity: 5.55 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 5.99 AU - 7.03 AU

Year: 10725 Days

Day: 23.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 56,138,322 km

• M1: 89,609 km (0.067 R)
• M2: 500,106 km (0.038 R)
• M3: 795,861 km (0.094 R)
• M4: 1,840,503 km (0.064 R)
• M5: 2,084,497 km (0.089 R)
• M6: 2,315,775 km (0.12 R)
• M7: 2,950,220 km (0.076 R)
• M8: 3,374,479 km (0.103 R)
• M9: 3,887,301 km (0.104 R)
• M10: 4,162,710 km (0.106 R)
• M11: 5,397,042 km (0.095 R)
• M12: 6,098,208 km (0.066 R)
• M13: 6,505,413 km (0.057 R)
• M14: 7,113,229 km (0.04 R)
• M15: 8,074,994 km (0.047 R)
• M16: 11,734,607 km (0.03 R)
• M17: 21,393,692 km (0.067 R)
• M18: 24,973,719 km (0.062 R)
• M19: 26,191,595 km (0.046 R)
• M20: 26,995,085 km (0.108 R)
• M21: 28,091,937 km (0.072 R)
• M22: 29,028,420 km (0.107 R)
• M23: 30,082,337 km (0.11 R)
• M24: 32,266,466 km (0.116 R)
• M25: 32,879,966 km (0.118 R)
• M26: 35,412,060 km (0.107 R)
• M27: 36,064,755 km (0.098 R)
• M28: 37,506,580 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 345.7

Radius: 7.8

Gravity: 5.68 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 8.56 AU - 9.72 AU

Year: 17842 Days

Day: 19.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 56,138,322 km

• M1: 97,687 km (0.11 R)
• M2: 796,758 km (0.115 R)
• M3: 1,082,041 km (0.106 R)
• M4: 1,380,639 km (0.092 R)
• M5: 2,110,976 km (0.116 R)
• M6: 2,625,443 km (0.106 R)
• M7: 3,498,645 km (0.107 R)
• M8: 3,847,508 km (0.068 R)
• M9: 4,278,649 km (0.095 R)
• M10: 5,695,341 km (0.047 R)
• M11: 6,294,779 km (0.087 R)
• M12: 6,569,890 km (0.108 R)
• M13: 7,841,322 km (0.09 R)
• M14: 8,823,731 km (0.088 R)
• M15: 9,625,725 km (0.109 R)
• M16: 9,991,642 km (0.092 R)
• M17: 11,144,892 km (0.117 R)
• M18: 16,801,636 km (0.092 R)
• M19: 19,484,375 km (0.112 R)
• M20: 20,840,479 km (0.045 R)
• M21: 21,987,745 km (0.12 R)
• M22: 22,622,639 km (0.107 R)
• M23: 24,119,665 km (0.075 R)
• M24: 24,892,487 km (0.11 R)
• M25: 25,981,859 km (0.096 R)
• M26: 30,434,640 km (0.05 R)
• M27: 31,336,715 km (0.088 R)
• M28: 37,898,377 km (0.115 R)
• M29: 38,417,930 km (0.075 R)
• M30: 40,408,778 km (0.079 R)
• M31: 40,951,071 km (0.073 R)
• M32: 42,328,119 km (0.09 R)
• M33: 47,541,007 km (0.079 R)
• M34: 53,166,186 km (0.089 R)
• M35: 54,473,821 km (0.05 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: 486 - 18,114 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit