🌌 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: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 731.5

Radius: 11.9

Gravity: 5.17 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.46 AU - 0.6 AU

Year: 266 Days

Day: 13.1 Hours

Environment

Temp: -136 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 30,432,671 km

• M1: 149,149 km (0.09 R)
• M2: 532,718 km (0.077 R)
• M3: 1,073,514 km (0.114 R)
• M4: 1,528,741 km (0.039 R)
• M5: 1,914,703 km (0.1 R)
• M6: 2,870,634 km (0.114 R)
• M7: 3,587,507 km (0.095 R)
• M8: 4,231,675 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 276

Radius: 12

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.5 AU - 0.72 AU

Year: 329 Days

Day: 14.4 Hours

Environment

Temp: -155 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 30,432,671 km

• M1: 149,299 km (0.059 R)
• M2: 554,260 km (0.053 R)
• M3: 1,008,140 km (0.109 R)
• M4: 1,516,025 km (0.04 R)
• M5: 1,946,867 km (0.077 R)
• M6: 2,499,780 km (0.094 R)
• M7: 2,961,290 km (0.032 R)
• M8: 3,499,842 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21.4

Radius: 12.9

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.75 AU - 1.05 AU

Year: 589 Days

Day: 12.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 30,432,671 km

• M1: 160,519 km (0.099 R)
• M2: 603,777 km (0.109 R)
• M3: 1,097,300 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.9

Radius: 14.9

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.72 AU - 2.06 AU

Year: 1794 Days

Day: 10.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 30,432,671 km

• M1: 185,352 km (0.086 R)
• M2: 1,029,533 km (0.094 R)
• M3: 2,518,929 km (0.059 R)
• M4: 2,999,886 km (0.071 R)
• M5: 3,511,810 km (0.095 R)
• M6: 3,980,201 km (0.107 R)
• M7: 5,084,832 km (0.102 R)
• M8: 5,666,319 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 618.4

Radius: 12.7

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 3.2 AU - 4.54 AU

Year: 5255 Days

Day: 13.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 172.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 30,432,671 km

• M1: 157,975 km (0.093 R)
• M2: 638,185 km (0.091 R)
• M3: 1,051,972 km (0.059 R)
• M4: 2,064,151 km (0.076 R)
• M5: 3,374,180 km (0.1 R)
• M6: 3,819,832 km (0.107 R)
• M7: 4,475,669 km (0.037 R)
• M8: 5,803,799 km (0.076 R)
• M9: 6,511,247 km (0.115 R)
• M10: 7,104,552 km (0.075 R)
• M11: 16,523,534 km (0.093 R)
• M12: 17,070,314 km (0.102 R)
• M13: 21,528,630 km (0.099 R)
• M14: 23,222,825 km (0.071 R)
• M15: 24,296,639 km (0.103 R)
• M16: 25,323,180 km (0.108 R)
• M17: 29,898,630 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619.6

Radius: 11.3

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 3.15 AU - 4.87 AU

Year: 5543 Days

Day: 10.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 30,432,671 km

• M1: 141,669 km (0.051 R)
• M2: 948,151 km (0.056 R)
• M3: 2,030,641 km (0.118 R)
• M4: 2,686,030 km (0.097 R)
• M5: 3,093,086 km (0.081 R)
• M6: 3,670,982 km (0.12 R)
• M7: 4,595,198 km (0.037 R)
• M8: 4,962,461 km (0.068 R)
• M9: 5,349,620 km (0.112 R)
• M10: 5,968,207 km (0.114 R)
• M11: 6,342,651 km (0.103 R)
• M12: 7,490,216 km (0.099 R)
• M13: 8,113,590 km (0.102 R)
• M14: 9,133,548 km (0.095 R)
• M15: 9,931,653 km (0.112 R)
• M16: 11,005,317 km (0.103 R)
• M17: 13,016,212 km (0.051 R)
• M18: 14,523,260 km (0.119 R)
• M19: 16,143,555 km (0.077 R)
• M20: 18,074,415 km (0.119 R)
• M21: 18,662,634 km (0.091 R)
• M22: 20,716,313 km (0.095 R)
• M23: 22,992,445 km (0.102 R)
• M24: 24,467,181 km (0.054 R)
• M25: 27,176,847 km (0.081 R)
• M26: 27,690,267 km (0.088 R)
• M27: 28,122,904 km (0.079 R)
• M28: 29,989,885 km (0.117 R)
• M29: 30,630,014 km (0.037 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 593.9

Radius: 4.1

Gravity: 35.33 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 5.38 AU - 5.86 AU

Year: 9196 Days

Day: 19.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 30,432,671 km

• M1: 51,162 km (0.102 R)
• M2: 456,573 km (0.099 R)
• M3: 809,773 km (0.081 R)
• M4: 1,029,533 km (0.118 R)
• M5: 1,732,942 km (0.111 R)
• M6: 2,255,637 km (0.115 R)
• M7: 2,401,345 km (0.084 R)
• M8: 2,793,291 km (0.061 R)
• M9: 4,825,429 km (0.06 R)
• M10: 5,710,749 km (0.076 R)
• M11: 6,156,401 km (0.095 R)
• M12: 7,078,223 km (0.055 R)
• M13: 8,518,103 km (0.07 R)
• M14: 9,611,364 km (0.109 R)
• M15: 10,044,300 km (0.115 R)
• M16: 11,315,433 km (0.05 R)
• M17: 14,049,334 km (0.108 R)
• M18: 16,845,767 km (0.067 R)
• M19: 17,830,720 km (0.083 R)
• M20: 18,779,021 km (0.116 R)
• M21: 20,617,429 km (0.084 R)
• M22: 22,321,349 km (0.117 R)
• M23: 24,204,935 km (0.045 R)
• M24: 30,588,875 km (0.081 R)
• M25: 34,330,767 km (0.118 R)
• M26: 35,227,007 km (0.107 R)
• M27: 43,223,313 km (0.075 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 32.9

Radius: 7.5

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 9.14 AU - 11.62 AU

Year: 23084 Days

Day: 16.4 Hours

Environment

Temp: -235 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 30,432,671 km

• M1: 193,580 km (0.075 R)
• M2: 434,283 km (0.08 R)
• M3: 2,839,517 km (0.066 R)
• M4: 5,113,554 km (0.08 R)
• M5: 6,581,259 km (0.068 R)
• M6: 7,254,300 km (0.109 R)
• M7: 7,752,012 km (0.091 R)
• M8: 8,658,126 km (0.098 R)
• M9: 9,259,211 km (0.1 R)
• M10: 21,698,573 km (0.061 R)
• M11: 22,210,646 km (0.083 R)
• M12: 25,453,928 km (0.033 R)
• M13: 27,019,619 km (0.082 R)
• M14: 27,357,262 km (0.111 R)
• M15: 29,620,827 km (0.041 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 389 - 11,635 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit