🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89.1

Radius: 10.3

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.85 AU - 0.87 AU

Year: 507 Days

Day: 6.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 85,854,075 km

• M1: 128,205 km (0.105 R)
• M2: 609,761 km (0.106 R)
• M3: 955,033 km (0.087 R)
• M4: 1,307,336 km (0.095 R)
• M5: 2,127,581 km (0.114 R)
• M6: 2,460,287 km (0.034 R)
• M7: 2,896,963 km (0.083 R)
• M8: 3,289,059 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 456

Radius: 14.6

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.97 AU - 1.19 AU

Year: 714 Days

Day: 6.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 85,854,075 km

• M1: 181,612 km (0.087 R)
• M2: 716,574 km (0.111 R)
• M3: 1,286,841 km (0.087 R)
• M4: 1,790,537 km (0.085 R)
• M5: 2,245,763 km (0.112 R)
• M6: 2,845,352 km (0.112 R)
• M7: 3,299,381 km (0.108 R)
• M8: 4,630,503 km (0.09 R)
• M9: 5,315,512 km (0.106 R)
• M10: 6,086,240 km (0.107 R)
• M11: 7,012,849 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448

Radius: 9.8

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.98 AU - 1.52 AU

Year: 889 Days

Day: 9.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 85,854,075 km

• M1: 121,922 km (0.115 R)
• M2: 496,366 km (0.102 R)
• M3: 826,827 km (0.077 R)
• M4: 1,249,890 km (0.027 R)
• M5: 1,920,687 km (0.083 R)
• M6: 2,447,421 km (0.115 R)
• M7: 2,850,438 km (0.087 R)
• M8: 5,780,163 km (0.056 R)
• M9: 6,132,466 km (0.051 R)
• M10: 6,837,371 km (0.104 R)
• M11: 7,804,970 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491.5

Radius: 10.6

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.41 AU - 1.87 AU

Year: 1335 Days

Day: 13.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 85,854,075 km

• M1: 132,095 km (0.053 R)
• M2: 657,333 km (0.105 R)
• M3: 1,224,309 km (0.108 R)
• M4: 1,985,164 km (0.113 R)
• M5: 2,622,002 km (0.082 R)
• M6: 3,049,852 km (0.065 R)
• M7: 3,677,265 km (0.096 R)
• M8: 4,566,924 km (0.099 R)
• M9: 5,150,505 km (0.092 R)
• M10: 5,698,632 km (0.075 R)
• M11: 6,581,858 km (0.119 R)
• M12: 8,021,587 km (0.062 R)
• M13: 8,508,379 km (0.064 R)
• M14: 9,072,213 km (0.098 R)
• M15: 9,781,606 km (0.08 R)
• M16: 10,947,273 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 587.2

Radius: 13.4

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.41 AU - 2.27 AU

Year: 1587 Days

Day: 13.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 85,854,075 km

• M1: 166,652 km (0.101 R)
• M2: 606,619 km (0.106 R)
• M3: 1,075,010 km (0.116 R)
• M4: 1,814,173 km (0.101 R)
• M5: 2,371,425 km (0.116 R)
• M6: 4,077,739 km (0.069 R)
• M7: 4,572,160 km (0.119 R)
• M8: 5,004,498 km (0.086 R)
• M9: 5,529,137 km (0.093 R)
• M10: 6,230,751 km (0.067 R)
• M11: 6,889,580 km (0.085 R)
• M12: 8,006,478 km (0.077 R)
• M13: 9,903,529 km (0.08 R)
• M14: 10,699,838 km (0.093 R)
• M15: 12,270,167 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 943.8

Radius: 10.7

Gravity: 8.24 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.47 AU - 2.45 AU

Year: 1745 Days

Day: 6.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 85,854,075 km

• M1: 133,142 km (0.085 R)
• M2: 583,581 km (0.103 R)
• M3: 1,075,908 km (0.078 R)
• M4: 1,530,835 km (0.108 R)
• M5: 2,350,482 km (0.119 R)
• M6: 2,836,974 km (0.109 R)
• M7: 3,389,888 km (0.086 R)
• M8: 3,994,712 km (0.106 R)
• M9: 5,679,034 km (0.119 R)
• M10: 6,746,565 km (0.117 R)
• M11: 7,214,806 km (0.117 R)
• M12: 7,616,626 km (0.034 R)
• M13: 8,880,279 km (0.103 R)
• M14: 9,579,350 km (0.027 R)
• M15: 9,924,921 km (0.083 R)
• M16: 11,314,835 km (0.037 R)
• M17: 12,459,707 km (0.098 R)
• M18: 13,593,659 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 935.8

Radius: 8.9

Gravity: 11.81 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.79 AU - 2.81 AU

Year: 2218 Days

Day: 6.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 85,854,075 km

• M1: 126,709 km (0.114 R)
• M2: 413,489 km (0.077 R)
• M3: 745,596 km (0.117 R)
• M4: 1,132,456 km (0.099 R)
• M5: 1,640,490 km (0.027 R)
• M6: 2,253,542 km (0.064 R)
• M7: 2,591,334 km (0.116 R)
• M8: 2,898,459 km (0.091 R)
• M9: 3,891,190 km (0.099 R)
• M10: 5,334,361 km (0.089 R)
• M11: 6,069,784 km (0.105 R)
• M12: 8,252,417 km (0.096 R)
• M13: 8,683,857 km (0.064 R)
• M14: 8,991,131 km (0.088 R)
• M15: 12,564,576 km (0.115 R)
• M16: 13,405,465 km (0.068 R)
• M17: 14,001,912 km (0.103 R)
• M18: 14,472,846 km (0.09 R)
• M19: 16,153,129 km (0.059 R)
• M20: 17,361,132 km (0.093 R)
• M21: 18,347,580 km (0.102 R)
• M22: 18,911,564 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 810.6

Radius: 7.1

Gravity: 16.08 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 10.52 AU - 10.74 AU

Year: 22036 Days

Day: 21.5 Hours

Environment

Temp: -240 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 85,854,075 km

• M1: 94,247 km (0.066 R)
• M2: 413,937 km (0.082 R)
• M3: 640,129 km (0.09 R)
• M4: 1,510,340 km (0.102 R)
• M5: 4,757,362 km (0.072 R)
• M6: 6,397,254 km (0.086 R)
• M7: 12,498,902 km (0.094 R)
• M8: 13,148,157 km (0.084 R)
• M9: 15,475,152 km (0.096 R)
• M10: 20,528,717 km (0.12 R)
• M11: 22,888,923 km (0.084 R)
• M12: 23,859,813 km (0.077 R)
• M13: 31,306,496 km (0.108 R)
• M14: 35,551,934 km (0.119 R)
• M15: 49,305,513 km (0.111 R)
• M16: 52,945,379 km (0.11 R)
• M17: 84,065,626 km (0.08 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 320 - 11,540 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit