🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.1

Radius: 11.6

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.86 AU - 1.2 AU

Year: 675 Days

Day: 12.2 Hours

Environment

Temp: -160 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 84,687,633 km

• M1: 144,362 km (0.063 R)
• M2: 629,209 km (0.1 R)
• M3: 1,020,407 km (0.117 R)
• M4: 1,385,875 km (0.055 R)
• M5: 1,923,679 km (0.082 R)
• M6: 2,692,462 km (0.101 R)
• M7: 3,071,992 km (0.063 R)
• M8: 4,109,154 km (0.117 R)
• M9: 5,487,549 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221.7

Radius: 14.6

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1 AU - 1.1 AU

Year: 695 Days

Day: 7.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 84,687,633 km

• M1: 181,612 km (0.098 R)
• M2: 715,527 km (0.108 R)
• M3: 1,488,798 km (0.091 R)
• M4: 1,987,557 km (0.092 R)
• M5: 2,515,339 km (0.112 R)
• M6: 3,009,012 km (0.061 R)
• M7: 4,439,466 km (0.026 R)
• M8: 4,896,937 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736

Radius: 12.7

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 2.16 AU - 3.34 AU

Year: 2945 Days

Day: 10.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 84,687,633 km

• M1: 158,275 km (0.106 R)
• M2: 563,984 km (0.085 R)
• M3: 1,147,715 km (0.088 R)
• M4: 1,548,936 km (0.112 R)
• M5: 2,123,542 km (0.113 R)
• M6: 3,087,251 km (0.087 R)
• M7: 4,027,923 km (0.074 R)
• M8: 4,543,287 km (0.111 R)
• M9: 5,224,706 km (0.06 R)
• M10: 5,629,069 km (0.067 R)
• M11: 6,645,736 km (0.052 R)
• M12: 8,412,187 km (0.119 R)
• M13: 11,579,324 km (0.051 R)
• M14: 12,008,071 km (0.037 R)
• M15: 13,358,491 km (0.101 R)
• M16: 14,958,441 km (0.097 R)
• M17: 15,519,134 km (0.049 R)
• M18: 17,397,036 km (0.051 R)
• M19: 19,242,625 km (0.109 R)
• M20: 20,212,767 km (0.111 R)
• M21: 21,407,007 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.4

Radius: 10.7

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.16 AU - 3.58 AU

Year: 3139 Days

Day: 6.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 84,687,633 km

• M1: 158,275 km (0.083 R)
• M2: 492,027 km (0.068 R)
• M3: 886,517 km (0.117 R)
• M4: 1,537,717 km (0.084 R)
• M5: 2,277,328 km (0.078 R)
• M6: 3,414,721 km (0.095 R)
• M7: 3,979,303 km (0.059 R)
• M8: 4,850,861 km (0.045 R)
• M9: 5,565,789 km (0.03 R)
• M10: 6,570,488 km (0.085 R)
• M11: 8,430,139 km (0.08 R)
• M12: 9,075,056 km (0.03 R)
• M13: 9,752,584 km (0.098 R)
• M14: 10,387,029 km (0.094 R)
• M15: 10,930,069 km (0.086 R)
• M16: 11,779,935 km (0.099 R)
• M17: 12,673,333 km (0.107 R)
• M18: 14,167,666 km (0.064 R)
• M19: 14,642,789 km (0.113 R)
• M20: 15,128,533 km (0.099 R)
• M21: 17,020,049 km (0.085 R)
• M22: 18,216,832 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 770.9

Radius: 14.1

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 3.28 AU - 3.3 AU

Year: 3853 Days

Day: 9.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 84,687,633 km

• M1: 175,777 km (0.065 R)
• M2: 1,002,904 km (0.09 R)
• M3: 1,956,441 km (0.073 R)
• M4: 2,409,274 km (0.095 R)
• M5: 3,356,079 km (0.032 R)
• M6: 3,926,944 km (0.053 R)
• M7: 5,506,847 km (0.03 R)
• M8: 6,921,893 km (0.119 R)
• M9: 8,169,241 km (0.119 R)
• M10: 12,008,520 km (0.117 R)
• M11: 16,054,395 km (0.089 R)
• M12: 23,741,930 km (0.116 R)
• M13: 25,467,542 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239.6

Radius: 13.4

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 3.35 AU - 4.13 AU

Year: 4670 Days

Day: 14.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 49.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 84,687,633 km

• M1: 171,888 km (0.091 R)
• M2: 705,653 km (0.084 R)
• M3: 1,681,929 km (0.12 R)
• M4: 2,207,017 km (0.07 R)
• M5: 3,394,675 km (0.051 R)
• M6: 3,861,420 km (0.102 R)
• M7: 4,307,521 km (0.095 R)
• M8: 5,041,897 km (0.046 R)
• M9: 6,761,375 km (0.048 R)
• M10: 7,413,472 km (0.034 R)
• M11: 8,370,001 km (0.105 R)
• M12: 9,371,409 km (0.063 R)
• M13: 11,989,372 km (0.075 R)
• M14: 15,866,799 km (0.071 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 541.4

Radius: 8

Gravity: 8.46 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 6.04 AU - 7.3 AU

Year: 11123 Days

Day: 15.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 84,687,633 km

• M1: 100,530 km (0.086 R)
• M2: 677,080 km (0.09 R)
• M3: 1,459,776 km (0.113 R)
• M4: 3,542,029 km (0.073 R)
• M5: 3,927,094 km (0.11 R)
• M6: 5,788,091 km (0.043 R)
• M7: 8,799,347 km (0.08 R)
• M8: 9,362,583 km (0.114 R)
• M9: 10,664,982 km (0.071 R)
• M10: 16,664,305 km (0.116 R)
• M11: 18,116,601 km (0.054 R)
• M12: 19,968,473 km (0.117 R)
• M13: 20,531,410 km (0.038 R)
• M14: 24,589,701 km (0.114 R)
• M15: 27,838,369 km (0.114 R)
• M16: 29,981,657 km (0.116 R)
• M17: 41,320,129 km (0.081 R)
• M18: 41,710,280 km (0.111 R)
• M19: 45,332,493 km (0.107 R)
• M20: 46,025,430 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 922.7

Radius: 6.3

Gravity: 23.25 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 8.29 AU - 11.59 AU

Year: 20235 Days

Day: 17.5 Hours

Environment

Temp: -238 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 84,687,633 km

• M1: 97,538 km (0.055 R)
• M2: 358,287 km (0.108 R)
• M3: 884,572 km (0.102 R)
• M4: 1,548,338 km (0.089 R)
• M5: 2,385,787 km (0.116 R)
• M6: 4,192,630 km (0.094 R)
• M7: 5,213,935 km (0.093 R)
• M8: 5,412,451 km (0.092 R)
• M9: 5,782,706 km (0.095 R)
• M10: 9,088,968 km (0.087 R)
• M11: 9,850,870 km (0.107 R)
• M12: 10,910,322 km (0.116 R)
• M13: 13,034,612 km (0.117 R)
• M14: 15,583,012 km (0.091 R)
• M15: 15,996,052 km (0.067 R)
• M16: 19,094,822 km (0.064 R)
• M17: 20,340,822 km (0.091 R)
• M18: 20,734,863 km (0.056 R)
• M19: 24,403,153 km (0.095 R)
• M20: 25,754,321 km (0.104 R)
• M21: 30,489,093 km (0.093 R)
• M22: 32,723,038 km (0.11 R)
• M23: 33,536,851 km (0.084 R)
• M24: 34,782,702 km (0.102 R)
• M25: 40,384,544 km (0.093 R)
• M26: 41,163,500 km (0.106 R)
• M27: 42,751,780 km (0.107 R)
• M28: 45,209,973 km (0.03 R)
• M29: 49,869,198 km (0.119 R)
• M30: 50,585,622 km (0.049 R)
• M31: 54,838,690 km (0.113 R)
• M32: 63,208,990 km (0.096 R)
• M33: 63,837,451 km (0.105 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: 316 - 15,152 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit