🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.6

Radius: 11.3

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.49 AU - 0.73 AU

Year: 318 Days

Day: 8.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 51,575,460 km

• M1: 140,772 km (0.077 R)
• M2: 500,854 km (0.053 R)
• M3: 923,468 km (0.038 R)
• M4: 1,520,662 km (0.115 R)
• M5: 2,161,839 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 834.2

Radius: 11.3

Gravity: 6.53 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.66 AU - 0.94 AU

Year: 477 Days

Day: 7.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 51,575,460 km

• M1: 140,622 km (0.074 R)
• M2: 565,630 km (0.105 R)
• M3: 1,089,222 km (0.11 R)
• M4: 1,481,019 km (0.06 R)
• M5: 1,852,770 km (0.078 R)
• M6: 2,269,101 km (0.069 R)
• M7: 2,622,002 km (0.118 R)
• M8: 3,416,067 km (0.092 R)
• M9: 4,319,639 km (0.108 R)
• M10: 4,851,609 km (0.053 R)
• M11: 5,392,854 km (0.078 R)
• M12: 5,793,626 km (0.099 R)
• M13: 6,655,160 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 768.3

Radius: 9.4

Gravity: 8.7 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.72 AU - 0.9 AU

Year: 486 Days

Day: 10.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 51,575,460 km

• M1: 116,836 km (0.103 R)
• M2: 463,305 km (0.074 R)
• M3: 869,612 km (0.098 R)
• M4: 1,362,238 km (0.102 R)
• M5: 1,785,451 km (0.102 R)
• M6: 2,469,113 km (0.045 R)
• M7: 2,811,542 km (0.074 R)
• M8: 3,391,234 km (0.114 R)
• M9: 3,870,097 km (0.116 R)
• M10: 4,393,390 km (0.105 R)
• M11: 4,820,193 km (0.089 R)
• M12: 5,125,522 km (0.111 R)
• M13: 5,918,541 km (0.038 R)
• M14: 6,614,171 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.5

Radius: 11.8

Gravity: 5.86 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.85 AU - 1.11 AU

Year: 647 Days

Day: 14.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,575,460 km

• M1: 146,756 km (0.086 R)
• M2: 605,572 km (0.084 R)
• M3: 1,238,521 km (0.095 R)
• M4: 1,715,439 km (0.061 R)
• M5: 2,324,302 km (0.092 R)
• M6: 2,869,287 km (0.111 R)
• M7: 3,431,326 km (0.084 R)
• M8: 4,563,633 km (0.109 R)
• M9: 5,441,323 km (0.058 R)
• M10: 5,891,613 km (0.082 R)
• M11: 7,530,308 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 776.2

Radius: 10.6

Gravity: 6.91 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.74 AU - 2 AU

Year: 1705 Days

Day: 5.8 Hours

Environment

Temp: -196 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 51,575,460 km

• M1: 131,796 km (0.108 R)
• M2: 462,706 km (0.108 R)
• M3: 807,679 km (0.112 R)
• M4: 1,403,228 km (0.072 R)
• M5: 1,785,301 km (0.069 R)
• M6: 2,212,852 km (0.064 R)
• M7: 2,778,780 km (0.078 R)
• M8: 3,780,338 km (0.111 R)
• M9: 4,413,137 km (0.083 R)
• M10: 4,943,462 km (0.089 R)
• M11: 7,333,886 km (0.075 R)
• M12: 8,686,550 km (0.091 R)
• M13: 10,373,266 km (0.096 R)
• M14: 10,908,378 km (0.116 R)
• M15: 11,499,439 km (0.12 R)
• M16: 11,918,014 km (0.086 R)
• M17: 13,610,863 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339.6

Radius: 12.8

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 2 AU - 2.44 AU

Year: 2206 Days

Day: 10.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 51,575,460 km

• M1: 163,660 km (0.068 R)
• M2: 603,627 km (0.077 R)
• M3: 1,166,265 km (0.045 R)
• M4: 1,711,400 km (0.076 R)
• M5: 2,563,360 km (0.112 R)
• M6: 3,901,512 km (0.025 R)
• M7: 4,482,850 km (0.104 R)
• M8: 5,247,744 km (0.055 R)
• M9: 6,098,058 km (0.096 R)
• M10: 6,581,259 km (0.111 R)
• M11: 7,874,533 km (0.102 R)
• M12: 8,478,011 km (0.036 R)
• M13: 11,421,498 km (0.102 R)
• M14: 11,859,820 km (0.113 R)
• M15: 12,347,359 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 710

Radius: 12.1

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 2.21 AU - 2.39 AU

Year: 2326 Days

Day: 13.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 51,575,460 km

• M1: 150,495 km (0.112 R)
• M2: 562,937 km (0.084 R)
• M3: 964,607 km (0.108 R)
• M4: 1,921,734 km (0.104 R)
• M5: 2,411,518 km (0.071 R)
• M6: 5,147,812 km (0.086 R)
• M7: 5,672,602 km (0.067 R)
• M8: 6,746,266 km (0.057 R)
• M9: 9,156,287 km (0.058 R)
• M10: 11,012,946 km (0.065 R)
• M11: 12,009,567 km (0.088 R)
• M12: 12,508,776 km (0.086 R)
• M13: 13,999,070 km (0.107 R)
• M14: 16,350,598 km (0.074 R)
• M15: 18,183,920 km (0.085 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 86.4

Radius: 9.4

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.36 AU - 3.02 AU

Year: 2942 Days

Day: 10.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 51,575,460 km

• M1: 116,836 km (0.089 R)
• M2: 409,449 km (0.083 R)
• M3: 947,254 km (0.065 R)
• M4: 1,301,950 km (0.071 R)
• M5: 1,638,695 km (0.112 R)
• M6: 2,126,683 km (0.076 R)
• M7: 2,759,183 km (0.117 R)
• M8: 3,294,145 km (0.086 R)
• M9: 3,739,648 km (0.111 R)
• M10: 4,157,774 km (0.111 R)
• M11: 4,806,729 km (0.104 R)
• M12: 5,461,220 km (0.107 R)
• M13: 6,713,204 km (0.095 R)
• M14: 7,042,170 km (0.094 R)
• M15: 7,732,564 km (0.112 R)
• M16: 8,413,384 km (0.108 R)
• M17: 8,740,854 km (0.06 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 973.4

Radius: 3.2

Gravity: 95.06 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 5.58 AU - 6.06 AU

Year: 9363 Days

Day: 22.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 51,575,460 km

• M1: 43,683 km (0.066 R)
• M2: 284,086 km (0.111 R)
• M3: 666,758 km (0.095 R)
• M4: 806,931 km (0.115 R)
• M5: 988,094 km (0.09 R)
• M6: 1,283,699 km (0.048 R)
• M7: 1,620,145 km (0.117 R)
• M8: 1,744,461 km (0.108 R)
• M9: 2,444,280 km (0.12 R)
• M10: 2,629,183 km (0.095 R)
• M11: 4,023,884 km (0.11 R)
• M12: 5,221,414 km (0.105 R)
• M13: 6,876,117 km (0.102 R)
• M14: 8,336,491 km (0.102 R)
• M15: 10,895,512 km (0.107 R)
• M16: 11,395,618 km (0.118 R)
• M17: 13,486,398 km (0.111 R)
• M18: 14,923,584 km (0.063 R)
• M19: 15,819,077 km (0.108 R)
• M20: 16,822,879 km (0.084 R)
• M21: 21,955,731 km (0.119 R)
• M22: 23,843,657 km (0.113 R)
• M23: 25,739,510 km (0.08 R)
• M24: 26,525,198 km (0.111 R)
• M25: 28,558,982 km (0.055 R)
• M26: 33,048,563 km (0.082 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 175 - 14,445 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit