🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 5

Radius: 1.9

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.51 AU - 0.77 AU

Year: 336 Days

Day: 38.3 Hours

Environment

Temp: -124 °C

Axial Tilt: 18.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 47,440,746 km

• M1: 65,075 km (0.118 R)
• M2: 334,650 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 516.1

Radius: 14.5

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.74 AU - 0.78 AU

Year: 435 Days

Day: 13.7 Hours

Environment

Temp: -135 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 47,440,746 km

• M1: 180,415 km (0.113 R)
• M2: 674,537 km (0.094 R)
• M3: 1,311,674 km (0.043 R)
• M4: 1,892,413 km (0.119 R)
• M5: 2,568,895 km (0.111 R)
• M6: 3,085,456 km (0.081 R)
• M7: 3,966,887 km (0.097 R)
• M8: 4,690,940 km (0.1 R)
• M9: 5,314,016 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.2

Radius: 11.4

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.76 AU - 0.98 AU

Year: 532 Days

Day: 11.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 47,440,746 km

• M1: 141,819 km (0.043 R)
• M2: 546,631 km (0.066 R)
• M3: 905,666 km (0.105 R)
• M4: 1,326,185 km (0.12 R)
• M5: 1,798,615 km (0.116 R)
• M6: 2,905,639 km (0.063 R)
• M7: 3,314,341 km (0.08 R)
• M8: 3,737,553 km (0.042 R)
• M9: 4,196,819 km (0.119 R)
• M10: 4,596,694 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 539.9

Radius: 9.6

Gravity: 5.86 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.41 AU - 2.13 AU

Year: 1545 Days

Day: 5.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 47,440,746 km

• M1: 119,379 km (0.082 R)
• M2: 417,976 km (0.104 R)
• M3: 891,753 km (0.105 R)
• M4: 1,316,760 km (0.051 R)
• M5: 1,669,662 km (0.103 R)
• M6: 2,197,593 km (0.082 R)
• M7: 2,686,628 km (0.112 R)
• M8: 3,187,631 km (0.099 R)
• M9: 3,507,920 km (0.076 R)
• M10: 3,849,752 km (0.101 R)
• M11: 4,931,643 km (0.055 R)
• M12: 5,952,050 km (0.031 R)
• M13: 6,731,455 km (0.053 R)
• M14: 7,133,126 km (0.117 R)
• M15: 7,630,838 km (0.043 R)
• M16: 7,984,487 km (0.095 R)
• M17: 9,233,480 km (0.065 R)
• M18: 9,541,651 km (0.066 R)
• M19: 11,326,803 km (0.077 R)
• M20: 11,823,767 km (0.114 R)
• M21: 12,409,443 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.2

Radius: 14.7

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.69 AU - 2.29 AU

Year: 1842 Days

Day: 14.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 47,440,746 km

• M1: 182,809 km (0.108 R)
• M2: 1,013,226 km (0.064 R)
• M3: 1,877,752 km (0.106 R)
• M4: 2,459,688 km (0.034 R)
• M5: 3,457,955 km (0.117 R)
• M6: 4,479,110 km (0.073 R)
• M7: 5,102,634 km (0.114 R)
• M8: 5,802,004 km (0.088 R)
• M9: 7,307,557 km (0.063 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 177.9

Radius: 12.6

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.84 AU - 2.3 AU

Year: 1954 Days

Day: 14.4 Hours

Environment

Temp: -182 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 47,440,746 km

• M1: 170,542 km (0.059 R)
• M2: 717,471 km (0.096 R)
• M3: 1,236,576 km (0.06 R)
• M4: 2,413,313 km (0.097 R)
• M5: 2,839,816 km (0.114 R)
• M6: 4,931,793 km (0.104 R)
• M7: 5,645,973 km (0.117 R)
• M8: 6,296,574 km (0.104 R)
• M9: 6,996,543 km (0.106 R)
• M10: 7,672,725 km (0.045 R)
• M11: 9,497,520 km (0.088 R)
• M12: 9,995,681 km (0.078 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56.9

Radius: 14.8

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 3.25 AU - 4.11 AU

Year: 4631 Days

Day: 9 Hours

Environment

Temp: -202 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 47,440,746 km

• M1: 191,336 km (0.073 R)
• M2: 1,249,142 km (0.079 R)
• M3: 3,877,278 km (0.1 R)
• M4: 4,524,588 km (0.057 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.2

Radius: 8.1

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 4 AU - 5.1 AU

Year: 6367 Days

Day: 5.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 47,440,746 km

• M1: 100,829 km (0.093 R)
• M2: 412,292 km (0.098 R)
• M3: 749,186 km (0.1 R)
• M4: 1,003,353 km (0.092 R)
• M5: 1,345,334 km (0.07 R)
• M6: 1,649,167 km (0.116 R)
• M7: 2,639,505 km (0.069 R)
• M8: 3,050,899 km (0.117 R)
• M9: 3,373,133 km (0.028 R)
• M10: 3,717,956 km (0.05 R)
• M11: 4,546,578 km (0.08 R)
• M12: 6,305,849 km (0.116 R)
• M13: 8,202,750 km (0.098 R)
• M14: 9,448,153 km (0.096 R)
• M15: 9,787,740 km (0.097 R)
• M16: 10,332,276 km (0.063 R)
• M17: 11,354,778 km (0.111 R)
• M18: 11,652,777 km (0.058 R)
• M19: 12,087,508 km (0.062 R)
• M20: 15,388,385 km (0.11 R)
• M21: 15,964,786 km (0.066 R)
• M22: 16,555,697 km (0.047 R)
• M23: 19,125,340 km (0.077 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.1

Radius: 12.6

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 4.28 AU - 6.44 AU

Year: 8141 Days

Day: 8.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 47,440,746 km

• M1: 156,779 km (0.118 R)
• M2: 556,055 km (0.111 R)
• M3: 991,983 km (0.091 R)
• M4: 1,652,159 km (0.101 R)
• M5: 2,244,566 km (0.037 R)
• M6: 3,885,805 km (0.088 R)
• M7: 5,034,118 km (0.045 R)
• M8: 8,726,343 km (0.104 R)
• M9: 12,400,616 km (0.091 R)
• M10: 14,421,085 km (0.098 R)
• M11: 15,444,035 km (0.091 R)
• M12: 18,213,242 km (0.077 R)
• M13: 19,792,247 km (0.06 R)
• M14: 34,042,491 km (0.066 R)
• M15: 42,568,672 km (0.117 R)
• M16: 44,535,884 km (0.086 R)

Planet 10 - Gas Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.3

Radius: 11.7

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 5.56 AU - 5.84 AU

Year: 8927 Days

Day: 10.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 47,440,746 km

• M1: 145,559 km (0.038 R)
• M2: 558,898 km (0.095 R)
• M3: 1,076,357 km (0.079 R)
• M4: 1,513,930 km (0.057 R)
• M5: 1,907,672 km (0.047 R)
• M6: 2,352,127 km (0.115 R)
• M7: 3,827,611 km (0.111 R)
• M8: 4,484,047 km (0.054 R)
• M9: 5,375,949 km (0.096 R)
• M10: 7,146,889 km (0.106 R)
• M11: 7,634,279 km (0.109 R)
• M12: 8,904,215 km (0.104 R)
• M13: 9,809,581 km (0.076 R)
• M14: 18,393,357 km (0.041 R)
• M15: 19,859,716 km (0.049 R)
• M16: 22,849,579 km (0.098 R)
• M17: 29,602,726 km (0.073 R)
• M18: 33,262,937 km (0.086 R)
• M19: 40,951,968 km (0.118 R)
• M20: 41,989,280 km (0.076 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: 407 - 12,673 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit