🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.12

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.6 AU - 0.88 AU

Year: 244 Days

Day: 21.7 Hours

Environment

Temp: 137 °C

Axial Tilt: 13 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.04

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.94 AU - 1.04 AU

Year: 377 Days

Day: 40.8 Hours

Environment

Temp: 8 °C

Axial Tilt: 14.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 85,474,883 km

• M1: 163,211 km (0.105 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.91 AU - 1.13 AU

Year: 394 Days

Day: 45.3 Hours

Environment

Temp: 5 °C

Axial Tilt: 32.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.07

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.11 AU - 1.35 AU

Year: 522 Days

Day: 27.6 Hours

Environment

Temp: -35 °C

Axial Tilt: 39.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.1

Radius: 1.35

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 2.45 AU - 2.75 AU

Year: 1605 Days

Day: 20.2 Hours

Environment

Temp: -98 °C

Axial Tilt: 42.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.39

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 3.6 AU - 4.52 AU

Year: 3132 Days

Day: 16.6 Hours

Environment

Temp: -126 °C

Axial Tilt: 29.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.43 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 4.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 793.7

Radius: 12.9

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 4.68 AU - 4.92 AU

Year: 4027 Days

Day: 7.8 Hours

Environment

Temp: -142 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 85,474,883 km

• M1: 170,542 km (0.093 R)
• M2: 674,088 km (0.109 R)
• M3: 1,214,286 km (0.105 R)
• M4: 1,804,450 km (0.067 R)
• M5: 2,406,880 km (0.077 R)
• M6: 3,470,521 km (0.086 R)
• M7: 4,876,741 km (0.079 R)
• M8: 7,214,657 km (0.107 R)
• M9: 7,620,815 km (0.083 R)
• M10: 8,553,857 km (0.117 R)
• M11: 9,521,456 km (0.085 R)
• M12: 11,628,093 km (0.117 R)
• M13: 12,668,546 km (0.083 R)
• M14: 16,685,399 km (0.032 R)
• M15: 18,132,160 km (0.057 R)
• M16: 19,595,526 km (0.084 R)
• M17: 21,830,668 km (0.077 R)
• M18: 25,300,740 km (0.044 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 476.9

Radius: 4.2

Gravity: 27.04 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 10 AU - 15.12 AU

Year: 17043 Days

Day: 15.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 85,474,883 km

• M1: 62,831 km (0.104 R)
• M2: 382,372 km (0.102 R)
• M3: 574,007 km (0.12 R)
• M4: 723,904 km (0.09 R)
• M5: 921,224 km (0.032 R)
• M6: 1,703,770 km (0.039 R)
• M7: 2,288,548 km (0.111 R)
• M8: 2,716,249 km (0.111 R)
• M9: 2,925,237 km (0.105 R)
• M10: 3,756,403 km (0.083 R)
• M11: 4,016,104 km (0.087 R)
• M12: 4,475,370 km (0.094 R)
• M13: 4,901,125 km (0.117 R)
• M14: 6,024,456 km (0.113 R)
• M15: 6,260,072 km (0.067 R)
• M16: 6,583,952 km (0.037 R)
• M17: 7,221,089 km (0.109 R)
• M18: 7,759,642 km (0.046 R)
• M19: 8,324,523 km (0.059 R)
• M20: 10,405,729 km (0.118 R)
• M21: 10,917,653 km (0.104 R)
• M22: 11,625,999 km (0.091 R)
• M23: 13,133,795 km (0.099 R)
• M24: 15,559,226 km (0.071 R)
• M25: 15,780,032 km (0.103 R)
• M26: 16,077,732 km (0.109 R)
• M27: 18,513,185 km (0.117 R)
• M28: 18,927,571 km (0.101 R)
• M29: 20,383,308 km (0.074 R)
• M30: 22,004,351 km (0.117 R)
• M31: 23,131,421 km (0.102 R)
• M32: 24,198,054 km (0.093 R)
• M33: 29,125,359 km (0.08 R)
• M34: 29,460,907 km (0.103 R)
• M35: 32,118,812 km (0.047 R)
• M36: 38,038,699 km (0.096 R)
• M37: 41,465,089 km (0.12 R)
• M38: 42,174,183 km (0.076 R)
• M39: 43,470,897 km (0.114 R)
• M40: 48,923,740 km (0.115 R)
• M41: 49,239,391 km (0.038 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 783.4

Radius: 3.1

Gravity: 81.52 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 12.41 AU - 15.51 AU

Year: 19971 Days

Day: 15.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 85,474,883 km

• M1: 38,596 km (0.112 R)
• M2: 201,359 km (0.115 R)
• M3: 363,972 km (0.083 R)
• M4: 1,030,729 km (0.081 R)
• M5: 1,484,011 km (0.066 R)
• M6: 1,690,905 km (0.09 R)
• M7: 2,642,048 km (0.092 R)
• M8: 3,272,902 km (0.103 R)
• M9: 4,432,884 km (0.117 R)
• M10: 5,047,731 km (0.117 R)
• M11: 6,623,895 km (0.059 R)
• M12: 7,473,610 km (0.088 R)
• M13: 7,873,635 km (0.041 R)
• M14: 10,332,276 km (0.113 R)
• M15: 11,535,941 km (0.056 R)
• M16: 12,411,238 km (0.095 R)
• M17: 15,621,458 km (0.106 R)
• M18: 17,633,400 km (0.098 R)
• M19: 18,974,844 km (0.086 R)
• M20: 21,161,367 km (0.12 R)
• M21: 22,571,327 km (0.114 R)
• M22: 25,242,696 km (0.085 R)
• M23: 26,596,706 km (0.097 R)
• M24: 34,917,190 km (0.047 R)
• M25: 39,064,193 km (0.063 R)
• M26: 42,577,499 km (0.089 R)
• M27: 42,734,876 km (0.05 R)
• M28: 49,178,804 km (0.117 R)
• M29: 50,224,344 km (0.079 R)
• M30: 51,284,544 km (0.119 R)
• M31: 51,462,715 km (0.109 R)
• M32: 62,313,198 km (0.091 R)
• M33: 64,154,748 km (0.109 R)
• M34: 69,459,787 km (0.034 R)

Planet 10 - Ice Giant

Semi-Major Axis: 14.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 817.3

Radius: 4.1

Gravity: 48.62 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 12.59 AU - 17.01 AU

Year: 21800 Days

Day: 18.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 85,474,883 km

• M1: 56,099 km (0.051 R)
• M2: 275,559 km (0.106 R)
• M3: 2,243,968 km (0.11 R)
• M4: 2,645,489 km (0.088 R)
• M5: 2,929,575 km (0.097 R)
• M6: 4,136,980 km (0.068 R)
• M7: 7,179,950 km (0.082 R)
• M8: 7,680,654 km (0.064 R)
• M9: 8,976,620 km (0.103 R)
• M10: 9,322,191 km (0.09 R)
• M11: 12,985,843 km (0.103 R)
• M12: 14,813,032 km (0.07 R)
• M13: 17,595,253 km (0.089 R)
• M14: 18,410,412 km (0.075 R)
• M15: 21,208,191 km (0.111 R)
• M16: 30,754,480 km (0.089 R)
• M17: 31,144,781 km (0.097 R)
• M18: 33,282,385 km (0.117 R)
• M19: 33,831,558 km (0.106 R)
• M20: 40,745,224 km (0.085 R)
• M21: 47,843,643 km (0.078 R)
• M22: 49,962,248 km (0.054 R)
• M23: 76,339,345 km (0.091 R)
• M24: 83,693,576 km (0.105 R)
• M25: 84,453,832 km (0.102 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: 321 - 18,687 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit