🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.3

Radius: 8.8

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.57 AU - 0.61 AU

Year: 302 Days

Day: 11.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 25,438,485 km

• M1: 109,506 km (0.059 R)
• M2: 398,828 km (0.06 R)
• M3: 813,513 km (0.079 R)
• M4: 1,127,818 km (0.095 R)
• M5: 2,557,076 km (0.064 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 750.1

Radius: 11.9

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.86 AU - 1.04 AU

Year: 617 Days

Day: 9 Hours

Environment

Temp: -174 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 25,438,485 km

• M1: 147,952 km (0.075 R)
• M2: 593,604 km (0.119 R)
• M3: 1,387,071 km (0.118 R)
• M4: 1,783,207 km (0.095 R)
• M5: 2,265,660 km (0.092 R)
• M6: 2,789,402 km (0.116 R)
• M7: 3,203,190 km (0.106 R)
• M8: 3,908,843 km (0.103 R)
• M9: 4,337,291 km (0.07 R)
• M10: 5,413,199 km (0.076 R)
• M11: 6,415,654 km (0.069 R)
• M12: 7,035,887 km (0.072 R)
• M13: 7,538,087 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.2

Radius: 11.3

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.83 AU - 1.39 AU

Year: 780 Days

Day: 9.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 25,438,485 km

• M1: 141,220 km (0.083 R)
• M2: 511,026 km (0.111 R)
• M3: 875,746 km (0.114 R)
• M4: 1,712,596 km (0.101 R)
• M5: 2,845,052 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 606.6

Radius: 11.8

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.77 AU - 2.15 AU

Year: 1830 Days

Day: 8.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 25,438,485 km

• M1: 146,905 km (0.07 R)
• M2: 539,450 km (0.1 R)
• M3: 946,356 km (0.097 R)
• M4: 1,548,787 km (0.082 R)
• M5: 2,953,810 km (0.077 R)
• M6: 3,767,473 km (0.113 R)
• M7: 4,143,562 km (0.104 R)
• M8: 4,564,680 km (0.083 R)
• M9: 5,337,802 km (0.106 R)
• M10: 7,752,461 km (0.112 R)
• M11: 8,394,984 km (0.114 R)
• M12: 8,790,969 km (0.119 R)
• M13: 9,295,712 km (0.113 R)
• M14: 9,919,984 km (0.081 R)
• M15: 11,886,000 km (0.084 R)
• M16: 12,621,872 km (0.108 R)
• M17: 14,056,814 km (0.044 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.2

Radius: 14.1

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 3.12 AU - 3.3 AU

Year: 3835 Days

Day: 12.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 25,438,485 km

• M1: 176,376 km (0.06 R)
• M2: 621,878 km (0.112 R)
• M3: 1,185,114 km (0.081 R)
• M4: 1,878,949 km (0.118 R)
• M5: 2,738,539 km (0.086 R)
• M6: 4,595,497 km (0.088 R)
• M7: 5,619,345 km (0.064 R)
• M8: 6,130,222 km (0.112 R)
• M9: 7,308,155 km (0.073 R)
• M10: 8,151,588 km (0.118 R)
• M11: 9,351,512 km (0.106 R)
• M12: 9,916,992 km (0.097 R)
• M13: 12,411,238 km (0.089 R)
• M14: 13,517,215 km (0.03 R)
• M15: 17,231,431 km (0.101 R)
• M16: 19,686,781 km (0.109 R)
• M17: 22,234,283 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 602

Radius: 11.6

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 2.74 AU - 4.34 AU

Year: 4442 Days

Day: 12.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 25,438,485 km

• M1: 144,362 km (0.11 R)
• M2: 511,774 km (0.067 R)
• M3: 876,494 km (0.095 R)
• M4: 1,384,528 km (0.062 R)
• M5: 1,976,337 km (0.116 R)
• M6: 2,471,058 km (0.105 R)
• M7: 3,427,437 km (0.078 R)
• M8: 4,447,545 km (0.081 R)
• M9: 5,015,717 km (0.113 R)
• M10: 5,972,845 km (0.038 R)
• M11: 6,791,295 km (0.087 R)
• M12: 8,319,886 km (0.047 R)
• M13: 10,786,006 km (0.117 R)
• M14: 12,807,971 km (0.092 R)
• M15: 13,754,926 km (0.117 R)
• M16: 15,787,961 km (0.04 R)
• M17: 16,759,449 km (0.059 R)
• M18: 17,289,774 km (0.051 R)
• M19: 19,848,197 km (0.094 R)
• M20: 21,734,327 km (0.109 R)
• M21: 24,481,243 km (0.086 R)
• M22: 25,317,644 km (0.1 R)
• M23: 26,016,266 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 681.4

Radius: 7.3

Gravity: 12.79 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 5.1 AU - 7.06 AU

Year: 9997 Days

Day: 21.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 25,438,485 km

• M1: 91,105 km (0.09 R)
• M2: 496,216 km (0.091 R)
• M3: 734,526 km (0.033 R)
• M4: 1,127,818 km (0.044 R)
• M5: 1,791,135 km (0.1 R)
• M6: 2,034,531 km (0.111 R)
• M7: 2,451,012 km (0.087 R)
• M8: 2,690,219 km (0.114 R)
• M9: 3,011,256 km (0.101 R)
• M10: 4,384,265 km (0.077 R)
• M11: 5,240,563 km (0.092 R)
• M12: 5,538,263 km (0.101 R)
• M13: 5,777,470 km (0.077 R)
• M14: 7,361,711 km (0.035 R)
• M15: 8,386,905 km (0.066 R)
• M16: 9,121,132 km (0.08 R)
• M17: 10,875,765 km (0.04 R)
• M18: 11,415,814 km (0.05 R)
• M19: 14,069,680 km (0.104 R)
• M20: 15,708,824 km (0.045 R)
• M21: 16,965,147 km (0.113 R)
• M22: 19,914,469 km (0.111 R)
• M23: 21,468,042 km (0.104 R)
• M24: 21,975,030 km (0.109 R)
• M25: 24,814,547 km (0.108 R)
• M26: 25,749,833 km (0.119 R)
• M27: 30,995,033 km (0.082 R)
• M28: 31,642,493 km (0.061 R)
• M29: 32,741,738 km (0.101 R)
• M30: 33,752,720 km (0.053 R)
• M31: 40,643,348 km (0.117 R)
• M32: 41,549,313 km (0.112 R)
• M33: 43,535,823 km (0.07 R)
• M34: 47,411,904 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 76.9

Radius: 4

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 5.53 AU - 7.85 AU

Year: 11539 Days

Day: 21.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 25,438,485 km

• M1: 62,233 km (0.085 R)
• M2: 221,106 km (0.063 R)
• M3: 423,063 km (0.108 R)
• M4: 656,286 km (0.1 R)
• M5: 1,119,740 km (0.1 R)
• M6: 2,139,549 km (0.097 R)
• M7: 3,786,920 km (0.087 R)
• M8: 4,484,645 km (0.116 R)
• M9: 6,042,258 km (0.086 R)
• M10: 6,957,947 km (0.116 R)
• M11: 7,415,417 km (0.057 R)
• M12: 8,068,112 km (0.029 R)
• M13: 8,572,856 km (0.09 R)
• M14: 9,526,093 km (0.113 R)
• M15: 11,238,839 km (0.041 R)
• M16: 13,000,055 km (0.078 R)
• M17: 14,462,075 km (0.071 R)
• M18: 17,000,003 km (0.087 R)
• M19: 20,405,598 km (0.08 R)
• M20: 24,984,191 km (0.077 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 453 - 13,079 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit