🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.27

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.41 AU - 0.63 AU

Year: 242 Days

Day: 42.4 Hours

Environment

Temp: -114 °C

Axial Tilt: 35.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.3

Radius: 10.2

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.8 AU - 0.96 AU

Year: 533 Days

Day: 8 Hours

Environment

Temp: -147 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 59,452,026 km

• M1: 126,859 km (0.09 R)
• M2: 453,431 km (0.056 R)
• M3: 815,159 km (0.116 R)
• M4: 1,259,614 km (0.105 R)
• M5: 1,904,830 km (0.036 R)
• M6: 2,412,565 km (0.079 R)
• M7: 3,245,526 km (0.1 R)
• M8: 3,734,262 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 947

Radius: 8.5

Gravity: 13.11 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.02 AU - 1.16 AU

Year: 735 Days

Day: 9.7 Hours

Environment

Temp: -162 °C

Axial Tilt: 120.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,452,026 km

• M1: 105,766 km (0.106 R)
• M2: 441,613 km (0.094 R)
• M3: 978,071 km (0.088 R)
• M4: 2,302,461 km (0.048 R)
• M5: 2,744,373 km (0.118 R)
• M6: 3,188,080 km (0.066 R)
• M7: 3,753,261 km (0.087 R)
• M8: 4,637,534 km (0.118 R)
• M9: 5,212,289 km (0.111 R)
• M10: 6,017,275 km (0.081 R)
• M11: 7,247,418 km (0.086 R)
• M12: 8,929,946 km (0.062 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 913.5

Radius: 10.3

Gravity: 8.61 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.26 AU - 1.58 AU

Year: 1093 Days

Day: 9 Hours

Environment

Temp: -173 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 59,452,026 km

• M1: 128,355 km (0.052 R)
• M2: 453,431 km (0.084 R)
• M3: 777,610 km (0.051 R)
• M4: 1,151,305 km (0.067 R)
• M5: 1,472,342 km (0.105 R)
• M6: 2,314,279 km (0.054 R)
• M7: 2,809,448 km (0.098 R)
• M8: 3,434,618 km (0.056 R)
• M9: 3,929,038 km (0.088 R)
• M10: 4,962,311 km (0.067 R)
• M11: 5,638,344 km (0.1 R)
• M12: 6,213,248 km (0.094 R)
• M13: 6,778,280 km (0.054 R)
• M14: 9,029,428 km (0.051 R)
• M15: 9,417,635 km (0.118 R)
• M16: 9,817,061 km (0.1 R)
• M17: 11,459,795 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.5

Radius: 8.1

Gravity: 11.94 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 1.25 AU - 1.61 AU

Year: 1104 Days

Day: 7 Hours

Environment

Temp: -185 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 59,452,026 km

• M1: 100,679 km (0.088 R)
• M2: 441,463 km (0.098 R)
• M3: 877,392 km (0.109 R)
• M4: 1,357,601 km (0.055 R)
• M5: 1,617,751 km (0.044 R)
• M6: 1,891,515 km (0.029 R)
• M7: 2,402,093 km (0.103 R)
• M8: 2,773,993 km (0.06 R)
• M9: 3,084,708 km (0.058 R)
• M10: 3,343,961 km (0.097 R)
• M11: 3,649,290 km (0.039 R)
• M12: 4,091,053 km (0.072 R)
• M13: 4,678,823 km (0.11 R)
• M14: 6,088,933 km (0.048 R)
• M15: 6,734,896 km (0.109 R)
• M16: 8,162,957 km (0.059 R)
• M17: 8,861,729 km (0.087 R)
• M18: 9,152,099 km (0.056 R)
• M19: 9,968,005 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161.4

Radius: 9.2

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.21 AU - 1.99 AU

Year: 1307 Days

Day: 11 Hours

Environment

Temp: -182 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 59,452,026 km

• M1: 114,442 km (0.116 R)
• M2: 417,378 km (0.099 R)
• M3: 1,277,267 km (0.063 R)
• M4: 2,444,429 km (0.059 R)
• M5: 4,613,150 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 614.3

Radius: 11.5

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 2.63 AU - 3.61 AU

Year: 3558 Days

Day: 9.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 59,452,026 km

• M1: 143,016 km (0.1 R)
• M2: 525,537 km (0.113 R)
• M3: 1,049,728 km (0.071 R)
• M4: 1,675,496 km (0.105 R)
• M5: 2,477,341 km (0.102 R)
• M6: 3,275,595 km (0.091 R)
• M7: 5,302,197 km (0.072 R)
• M8: 6,247,057 km (0.109 R)
• M9: 6,744,919 km (0.053 R)
• M10: 10,110,273 km (0.102 R)
• M11: 10,839,263 km (0.086 R)
• M12: 13,096,097 km (0.056 R)
• M13: 14,611,822 km (0.097 R)
• M14: 15,176,854 km (0.107 R)
• M15: 17,071,959 km (0.099 R)
• M16: 18,757,927 km (0.092 R)
• M17: 19,302,912 km (0.102 R)
• M18: 20,872,643 km (0.085 R)
• M19: 21,261,747 km (0.075 R)
• M20: 21,854,454 km (0.06 R)
• M21: 22,322,994 km (0.11 R)
• M22: 23,072,928 km (0.096 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 811

Radius: 6.5

Gravity: 19.2 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 6.04 AU - 9.9 AU

Year: 14528 Days

Day: 19.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 59,452,026 km

• M1: 83,176 km (0.114 R)
• M2: 341,981 km (0.077 R)
• M3: 860,936 km (0.076 R)
• M4: 1,222,663 km (0.081 R)
• M5: 1,584,690 km (0.108 R)
• M6: 1,906,026 km (0.054 R)
• M7: 2,611,680 km (0.109 R)
• M8: 3,137,067 km (0.085 R)
• M9: 4,396,382 km (0.12 R)
• M10: 5,354,856 km (0.047 R)
• M11: 8,698,368 km (0.085 R)
• M12: 9,110,211 km (0.08 R)
• M13: 10,253,588 km (0.115 R)
• M14: 12,238,751 km (0.095 R)
• M15: 12,690,687 km (0.05 R)
• M16: 14,113,063 km (0.095 R)
• M17: 14,826,346 km (0.114 R)
• M18: 18,169,709 km (0.099 R)
• M19: 20,870,100 km (0.097 R)
• M20: 24,026,615 km (0.107 R)
• M21: 24,939,760 km (0.066 R)
• M22: 27,487,412 km (0.118 R)
• M23: 29,165,002 km (0.078 R)
• M24: 29,508,479 km (0.109 R)
• M25: 35,378,251 km (0.047 R)
• M26: 35,769,000 km (0.108 R)
• M27: 38,585,180 km (0.07 R)
• M28: 42,126,461 km (0.073 R)
• M29: 46,343,027 km (0.099 R)
• M30: 46,810,819 km (0.119 R)
• M31: 48,233,196 km (0.109 R)
• M32: 50,174,228 km (0.117 R)
• M33: 55,603,584 km (0.07 R)
• M34: 58,459,407 km (0.089 R)
• M35: 60,478,679 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 620.4

Radius: 6.1

Gravity: 16.67 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 8.82 AU - 10.4 AU

Year: 19235 Days

Day: 19.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 59,452,026 km

• M1: 75,846 km (0.103 R)
• M2: 322,533 km (0.094 R)
• M3: 702,212 km (0.069 R)
• M4: 902,973 km (0.057 R)
• M5: 1,439,730 km (0.106 R)
• M6: 1,734,587 km (0.117 R)
• M7: 2,674,361 km (0.113 R)
• M8: 3,336,033 km (0.066 R)
• M9: 4,525,485 km (0.119 R)
• M10: 4,871,056 km (0.12 R)
• M11: 5,309,079 km (0.093 R)
• M12: 8,301,036 km (0.107 R)
• M13: 8,609,357 km (0.115 R)
• M14: 9,303,940 km (0.091 R)
• M15: 11,738,945 km (0.097 R)
• M16: 15,475,601 km (0.084 R)
• M17: 17,485,448 km (0.12 R)
• M18: 19,302,912 km (0.045 R)
• M19: 20,027,265 km (0.041 R)
• M20: 20,396,174 km (0.093 R)
• M21: 23,106,588 km (0.117 R)
• M22: 25,721,259 km (0.114 R)
• M23: 26,708,905 km (0.027 R)
• M24: 27,835,676 km (0.103 R)
• M25: 31,903,840 km (0.094 R)
• M26: 34,604,830 km (0.109 R)
• M27: 37,038,039 km (0.105 R)
• M28: 39,294,723 km (0.117 R)
• M29: 41,791,063 km (0.03 R)
• M30: 52,834,976 km (0.096 R)
• M31: 53,539,283 km (0.102 R)
• M32: 54,607,262 km (0.049 R)
• M33: 55,871,214 km (0.076 R)
• M34: 56,602,150 km (0.082 R)
• M35: 66,080,222 km (0.079 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 301.6

Radius: 6.6

Gravity: 6.92 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 8.16 AU - 12.1 AU

Year: 20818 Days

Day: 17.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 139.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 59,452,026 km

• M1: 82,129 km (0.086 R)
• M2: 913,145 km (0.102 R)
• M3: 1,621,791 km (0.061 R)
• M4: 2,045,751 km (0.041 R)
• M5: 3,685,792 km (0.034 R)
• M6: 4,173,930 km (0.06 R)
• M7: 4,449,340 km (0.025 R)
• M8: 11,135,018 km (0.041 R)
• M9: 11,606,102 km (0.114 R)
• M10: 13,229,239 km (0.091 R)
• M11: 27,610,980 km (0.112 R)
• M12: 28,040,026 km (0.097 R)
• M13: 29,688,595 km (0.076 R)
• M14: 29,913,141 km (0.087 R)
• M15: 33,298,092 km (0.093 R)
• M16: 35,649,322 km (0.036 R)
• M17: 42,502,849 km (0.096 R)
• M18: 43,218,675 km (0.09 R)
• M19: 43,942,430 km (0.12 R)
• M20: 45,117,222 km (0.092 R)
• M21: 52,773,192 km (0.054 R)
• M22: 54,267,376 km (0.083 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 469 - 12,672 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit