🌌 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: 307.6

Radius: 14.3

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.49 AU - 0.59 AU

Year: 274 Days

Day: 10.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 164.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 56,989,206 km

• M1: 177,872 km (0.116 R)
• M2: 677,828 km (0.11 R)
• M3: 1,140,235 km (0.101 R)
• M4: 1,937,891 km (0.104 R)
• M5: 2,433,957 km (0.084 R)
• M6: 2,962,636 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.9

Radius: 9.8

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.63 AU - 0.71 AU

Year: 379 Days

Day: 9.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 56,989,206 km

• M1: 121,922 km (0.085 R)
• M2: 467,643 km (0.107 R)
• M3: 1,631,365 km (0.085 R)
• M4: 2,167,224 km (0.097 R)
• M5: 2,678,999 km (0.117 R)
• M6: 3,014,397 km (0.098 R)
• M7: 3,448,231 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 332.5

Radius: 12.4

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.63 AU - 0.89 AU

Year: 457 Days

Day: 11.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,989,206 km

• M1: 154,235 km (0.04 R)
• M2: 548,725 km (0.096 R)
• M3: 995,275 km (0.049 R)
• M4: 1,452,745 km (0.05 R)
• M5: 1,894,807 km (0.091 R)
• M6: 2,333,278 km (0.095 R)
• M7: 3,048,505 km (0.073 R)
• M8: 3,497,449 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 917.7

Radius: 12.6

Gravity: 5.78 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.74 AU - 1 AU

Year: 560 Days

Day: 13.3 Hours

Environment

Temp: -162 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 56,989,206 km

• M1: 157,826 km (0.111 R)
• M2: 569,220 km (0.112 R)
• M3: 1,021,305 km (0.058 R)
• M4: 2,033,783 km (0.12 R)
• M5: 2,711,910 km (0.114 R)
• M6: 3,277,989 km (0.048 R)
• M7: 4,827,523 km (0.08 R)
• M8: 5,392,255 km (0.04 R)
• M9: 6,039,116 km (0.081 R)
• M10: 6,841,111 km (0.1 R)
• M11: 7,443,840 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 575.5

Radius: 9.8

Gravity: 5.99 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.96 AU - 1.22 AU

Year: 786 Days

Day: 5.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 56,989,206 km

• M1: 122,072 km (0.038 R)
• M2: 490,681 km (0.12 R)
• M3: 808,726 km (0.11 R)
• M4: 1,318,256 km (0.117 R)
• M5: 2,088,835 km (0.105 R)
• M6: 2,624,545 km (0.082 R)
• M7: 3,474,560 km (0.096 R)
• M8: 4,198,015 km (0.034 R)
• M9: 4,530,422 km (0.064 R)
• M10: 5,320,897 km (0.087 R)
• M11: 5,884,133 km (0.093 R)
• M12: 6,220,728 km (0.037 R)
• M13: 7,286,015 km (0.085 R)
• M14: 8,101,024 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 848.6

Radius: 8.7

Gravity: 11.21 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 2.18 AU - 3.3 AU

Year: 3131 Days

Day: 10.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,989,206 km

• M1: 108,159 km (0.104 R)
• M2: 395,686 km (0.027 R)
• M3: 684,410 km (0.103 R)
• M4: 988,543 km (0.112 R)
• M5: 1,266,645 km (0.059 R)
• M6: 1,553,275 km (0.057 R)
• M7: 1,921,884 km (0.07 R)
• M8: 2,770,403 km (0.104 R)
• M9: 3,767,024 km (0.117 R)
• M10: 4,553,161 km (0.082 R)
• M11: 5,135,545 km (0.106 R)
• M12: 5,471,093 km (0.085 R)
• M13: 7,702,346 km (0.062 R)
• M14: 10,195,992 km (0.088 R)
• M15: 14,567,093 km (0.056 R)
• M16: 15,720,492 km (0.113 R)
• M17: 16,264,430 km (0.083 R)
• M18: 17,332,409 km (0.106 R)
• M19: 18,326,936 km (0.083 R)
• M20: 19,795,239 km (0.061 R)
• M21: 21,142,966 km (0.116 R)
• M22: 23,382,746 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.9

Radius: 11.9

Gravity: 5.39 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 3.12 AU - 3.48 AU

Year: 4138 Days

Day: 9.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 56,989,206 km

• M1: 148,251 km (0.084 R)
• M2: 831,465 km (0.112 R)
• M3: 1,255,874 km (0.096 R)
• M4: 2,167,524 km (0.1 R)
• M5: 3,016,491 km (0.084 R)
• M6: 3,437,609 km (0.117 R)
• M7: 3,832,847 km (0.113 R)
• M8: 4,446,946 km (0.07 R)
• M9: 5,476,928 km (0.105 R)
• M10: 6,502,870 km (0.092 R)
• M11: 7,177,407 km (0.107 R)
• M12: 8,591,256 km (0.118 R)
• M13: 10,740,379 km (0.108 R)
• M14: 12,295,000 km (0.099 R)
• M15: 14,684,078 km (0.102 R)
• M16: 15,902,553 km (0.09 R)
• M17: 17,428,002 km (0.092 R)
• M18: 17,978,223 km (0.094 R)
• M19: 18,729,653 km (0.112 R)
• M20: 20,362,664 km (0.116 R)
• M21: 22,230,692 km (0.097 R)
• M22: 23,760,630 km (0.059 R)
• M23: 24,589,402 km (0.077 R)
• M24: 25,908,257 km (0.112 R)
• M25: 26,464,761 km (0.117 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636.1

Radius: 10.9

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 3.4 AU - 3.94 AU

Year: 4853 Days

Day: 13.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 56,989,206 km

• M1: 138,976 km (0.091 R)
• M2: 532,868 km (0.118 R)
• M3: 1,432,400 km (0.049 R)
• M4: 1,893,610 km (0.116 R)
• M5: 3,314,341 km (0.069 R)
• M6: 4,463,402 km (0.12 R)
• M7: 8,249,874 km (0.118 R)
• M8: 9,133,698 km (0.084 R)
• M9: 11,134,570 km (0.064 R)
• M10: 17,478,118 km (0.104 R)
• M11: 18,038,062 km (0.107 R)
• M12: 20,467,382 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 535.5

Radius: 5.2

Gravity: 19.8 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 6.7 AU - 8.64 AU

Year: 14662 Days

Day: 18.3 Hours

Environment

Temp: -240 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 56,989,206 km

• M1: 65,075 km (0.041 R)
• M2: 354,397 km (0.083 R)
• M3: 775,515 km (0.083 R)
• M4: 1,453,044 km (0.061 R)
• M5: 1,912,609 km (0.061 R)
• M6: 4,074,747 km (0.085 R)
• M7: 5,047,133 km (0.106 R)
• M8: 5,677,987 km (0.092 R)
• M9: 7,223,034 km (0.097 R)
• M10: 7,885,453 km (0.118 R)
• M11: 9,128,163 km (0.039 R)
• M12: 9,535,518 km (0.113 R)
• M13: 17,493,975 km (0.063 R)
• M14: 20,872,045 km (0.106 R)
• M15: 22,391,809 km (0.064 R)
• M16: 24,465,984 km (0.041 R)
• M17: 32,261,678 km (0.068 R)
• M18: 35,519,322 km (0.119 R)
• M19: 46,296,801 km (0.087 R)
• M20: 52,988,164 km (0.1 R)
• M21: 54,631,646 km (0.114 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 238 - 11,971 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit