🌌 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 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.5 AU - 0.7 AU

Year: 300 Days

Day: 41.5 Hours

Environment

Temp: -129 °C

Axial Tilt: 47.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,510,764 km

• M1: 220,806 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 782.4

Radius: 10.9

Gravity: 6.59 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.68 AU - 0.83 AU

Year: 419 Days

Day: 12.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 51,510,764 km

• M1: 135,536 km (0.11 R)
• M2: 489,035 km (0.096 R)
• M3: 906,114 km (0.081 R)
• M4: 1,259,614 km (0.055 R)
• M5: 2,094,819 km (0.104 R)
• M6: 2,464,176 km (0.112 R)
• M7: 2,984,777 km (0.101 R)
• M8: 3,896,277 km (0.091 R)
• M9: 4,860,734 km (0.1 R)
• M10: 5,204,809 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 697.9

Radius: 9.8

Gravity: 7.27 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.99 AU - 1.15 AU

Year: 715 Days

Day: 10.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 51,510,764 km

• M1: 121,922 km (0.043 R)
• M2: 681,867 km (0.109 R)
• M3: 999,015 km (0.077 R)
• M4: 1,505,852 km (0.081 R)
• M5: 1,934,151 km (0.07 R)
• M6: 2,318,019 km (0.106 R)
• M7: 2,953,212 km (0.063 R)
• M8: 3,771,512 km (0.114 R)
• M9: 4,391,296 km (0.063 R)
• M10: 4,869,411 km (0.089 R)
• M11: 5,642,383 km (0.088 R)
• M12: 6,208,312 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24.3

Radius: 8.1

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.16 AU - 1.42 AU

Year: 946 Days

Day: 6.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 51,510,764 km

• M1: 100,979 km (0.084 R)
• M2: 356,193 km (0.096 R)
• M3: 613,800 km (0.096 R)
• M4: 885,619 km (0.109 R)
• M5: 1,741,618 km (0.085 R)
• M6: 2,350,033 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994.4

Radius: 10

Gravity: 9.94 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.77 AU - 1.79 AU

Year: 1533 Days

Day: 8.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 51,510,764 km

• M1: 124,316 km (0.086 R)
• M2: 448,644 km (0.07 R)
• M3: 924,814 km (0.118 R)
• M4: 1,465,311 km (0.026 R)
• M5: 1,808,937 km (0.108 R)
• M6: 2,343,600 km (0.113 R)
• M7: 3,196,458 km (0.088 R)
• M8: 3,642,559 km (0.091 R)
• M9: 4,889,158 km (0.086 R)
• M10: 5,414,845 km (0.092 R)
• M11: 6,100,003 km (0.091 R)
• M12: 6,425,378 km (0.049 R)
• M13: 7,303,966 km (0.081 R)
• M14: 8,785,285 km (0.114 R)
• M15: 9,496,772 km (0.116 R)
• M16: 11,632,880 km (0.052 R)
• M17: 14,999,879 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 762.1

Radius: 9.7

Gravity: 8.1 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 2.3 AU - 2.98 AU

Year: 2770 Days

Day: 5.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 51,510,764 km

• M1: 120,725 km (0.11 R)
• M2: 493,673 km (0.098 R)
• M3: 801,845 km (0.098 R)
• M4: 1,192,145 km (0.12 R)
• M5: 1,653,056 km (0.08 R)
• M6: 1,957,189 km (0.09 R)
• M7: 3,226,826 km (0.08 R)
• M8: 3,536,045 km (0.118 R)
• M9: 3,885,057 km (0.101 R)
• M10: 4,235,864 km (0.062 R)
• M11: 4,836,649 km (0.093 R)
• M12: 6,459,786 km (0.104 R)
• M13: 6,894,517 km (0.093 R)
• M14: 7,535,843 km (0.107 R)
• M15: 8,623,420 km (0.036 R)
• M16: 9,588,476 km (0.105 R)
• M17: 11,025,812 km (0.115 R)
• M18: 13,097,892 km (0.115 R)
• M19: 14,177,540 km (0.096 R)
• M20: 15,984,832 km (0.098 R)
• M21: 18,339,053 km (0.119 R)
• M22: 19,035,132 km (0.114 R)
• M23: 19,688,725 km (0.112 R)
• M24: 20,852,746 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.6

Radius: 9.5

Gravity: 7.93 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 2.66 AU - 3.46 AU

Year: 3456 Days

Day: 10.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 51,510,764 km

• M1: 120,277 km (0.108 R)
• M2: 913,893 km (0.089 R)
• M3: 1,277,117 km (0.057 R)
• M4: 1,973,794 km (0.099 R)
• M5: 3,206,032 km (0.08 R)
• M6: 4,192,780 km (0.11 R)
• M7: 4,602,229 km (0.082 R)
• M8: 5,215,131 km (0.1 R)
• M9: 6,021,314 km (0.062 R)
• M10: 8,469,932 km (0.104 R)
• M11: 10,173,403 km (0.056 R)
• M12: 10,788,849 km (0.094 R)
• M13: 11,385,595 km (0.087 R)
• M14: 12,505,484 km (0.085 R)
• M15: 14,601,201 km (0.107 R)
• M16: 14,963,228 km (0.071 R)
• M17: 17,784,943 km (0.116 R)
• M18: 18,557,167 km (0.106 R)
• M19: 19,538,230 km (0.117 R)
• M20: 19,851,787 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 727.5

Radius: 5.9

Gravity: 20.9 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 6.71 AU - 8.35 AU

Year: 13342 Days

Day: 20.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 51,510,764 km

• M1: 73,752 km (0.066 R)
• M2: 454,329 km (0.111 R)
• M3: 756,666 km (0.064 R)
• M4: 2,181,436 km (0.065 R)
• M5: 2,744,074 km (0.096 R)
• M6: 3,693,871 km (0.081 R)
• M7: 4,183,056 km (0.048 R)
• M8: 4,845,774 km (0.101 R)
• M9: 5,723,166 km (0.089 R)
• M10: 6,180,038 km (0.117 R)
• M11: 6,579,015 km (0.108 R)
• M12: 6,910,374 km (0.12 R)
• M13: 7,166,187 km (0.105 R)
• M14: 8,786,631 km (0.106 R)
• M15: 9,550,627 km (0.081 R)
• M16: 10,192,851 km (0.102 R)
• M17: 11,326,803 km (0.101 R)
• M18: 13,181,667 km (0.103 R)
• M19: 17,481,259 km (0.099 R)
• M20: 23,481,630 km (0.087 R)
• M21: 24,157,812 km (0.066 R)
• M22: 25,246,436 km (0.067 R)
• M23: 27,414,707 km (0.106 R)
• M24: 27,627,436 km (0.076 R)
• M25: 28,489,568 km (0.1 R)
• M26: 30,267,389 km (0.095 R)
• M27: 31,882,597 km (0.113 R)
• M28: 33,191,280 km (0.107 R)
• M29: 35,158,192 km (0.075 R)
• M30: 38,918,933 km (0.104 R)
• M31: 39,322,548 km (0.106 R)
• M32: 41,104,259 km (0.082 R)
• M33: 43,082,541 km (0.113 R)
• M34: 51,793,027 km (0.084 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 147.9

Radius: 6.4

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 10.83 AU - 11.43 AU

Year: 23975 Days

Day: 18.8 Hours

Environment

Temp: -241 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 51,510,764 km

• M1: 79,586 km (0.115 R)
• M2: 394,789 km (0.108 R)
• M3: 681,119 km (0.057 R)
• M4: 1,114,504 km (0.107 R)
• M5: 1,440,627 km (0.055 R)
• M6: 1,764,956 km (0.105 R)
• M7: 2,136,856 km (0.091 R)
• M8: 3,130,485 km (0.038 R)
• M9: 3,755,505 km (0.104 R)
• M10: 5,118,342 km (0.079 R)
• M11: 5,910,911 km (0.105 R)
• M12: 7,437,109 km (0.114 R)
• M13: 8,405,156 km (0.063 R)
• M14: 8,967,345 km (0.097 R)
• M15: 9,857,153 km (0.051 R)
• M16: 10,642,542 km (0.101 R)
• M17: 14,865,840 km (0.119 R)
• M18: 18,254,979 km (0.111 R)
• M19: 23,927,431 km (0.073 R)
• M20: 28,333,538 km (0.076 R)
• M21: 29,064,174 km (0.066 R)
• M22: 30,129,610 km (0.118 R)
• M23: 32,225,476 km (0.095 R)
• M24: 35,368,078 km (0.117 R)
• M25: 43,897,550 km (0.114 R)
• M26: 46,729,737 km (0.113 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 369 - 18,441 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit