🌌 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: 742.5

Radius: 9.5

Gravity: 8.23 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.4 AU - 0.66 AU

Year: 266 Days

Day: 12.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 45,028,966 km

• M1: 118,332 km (0.113 R)
• M2: 494,720 km (0.039 R)
• M3: 821,292 km (0.113 R)
• M4: 1,307,934 km (0.061 R)
• M5: 1,653,954 km (0.099 R)
• M6: 2,099,457 km (0.085 R)
• M7: 2,414,360 km (0.111 R)
• M8: 2,855,075 km (0.105 R)
• M9: 3,202,142 km (0.05 R)
• M10: 3,701,351 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.5

Radius: 12.7

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.47 AU - 0.77 AU

Year: 337 Days

Day: 6.7 Hours

Environment

Temp: -150 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,028,966 km

• M1: 157,975 km (0.106 R)
• M2: 698,772 km (0.102 R)
• M3: 1,242,560 km (0.088 R)
• M4: 1,663,828 km (0.109 R)
• M5: 2,142,690 km (0.066 R)
• M6: 2,559,470 km (0.076 R)
• M7: 3,132,280 km (0.096 R)
• M8: 3,616,828 km (0.117 R)
• M9: 4,264,587 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 617.8

Radius: 8

Gravity: 9.65 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.63 AU - 0.63 AU

Year: 345 Days

Day: 11.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 45,028,966 km

• M1: 99,632 km (0.116 R)
• M2: 365,468 km (0.103 R)
• M3: 651,648 km (0.077 R)
• M4: 939,624 km (0.11 R)
• M5: 1,207,404 km (0.076 R)
• M6: 1,501,215 km (0.088 R)
• M7: 1,756,429 km (0.088 R)
• M8: 2,009,399 km (0.105 R)
• M9: 2,543,762 km (0.102 R)
• M10: 3,095,330 km (0.046 R)
• M11: 3,399,761 km (0.105 R)
• M12: 3,980,949 km (0.095 R)
• M13: 4,341,779 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103

Radius: 11.2

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.67 AU - 0.89 AU

Year: 476 Days

Day: 8.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 45,028,966 km

• M1: 139,425 km (0.087 R)
• M2: 603,179 km (0.109 R)
• M3: 1,107,922 km (0.047 R)
• M4: 1,585,887 km (0.107 R)
• M5: 2,309,342 km (0.119 R)
• M6: 2,718,193 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.1

Radius: 13.2

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.7 AU - 1.04 AU

Year: 560 Days

Day: 10.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 45,028,966 km

• M1: 164,707 km (0.11 R)
• M2: 600,935 km (0.09 R)
• M3: 1,097,300 km (0.114 R)
• M4: 1,743,114 km (0.09 R)
• M5: 2,164,681 km (0.061 R)
• M6: 2,676,904 km (0.112 R)
• M7: 3,282,327 km (0.109 R)
• M8: 3,949,384 km (0.096 R)
• M9: 4,484,346 km (0.071 R)
• M10: 5,101,437 km (0.105 R)
• M11: 6,056,470 km (0.095 R)
• M12: 6,895,115 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636.7

Radius: 14.3

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.96 AU - 1.32 AU

Year: 840 Days

Day: 13.6 Hours

Environment

Temp: -176 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 45,028,966 km

• M1: 178,620 km (0.109 R)
• M2: 1,450,651 km (0.064 R)
• M3: 2,068,191 km (0.05 R)
• M4: 2,683,636 km (0.112 R)
• M5: 3,918,267 km (0.059 R)
• M6: 5,733,488 km (0.109 R)
• M7: 6,192,305 km (0.105 R)
• M8: 7,506,672 km (0.118 R)
• M9: 8,330,208 km (0.109 R)
• M10: 8,947,149 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.4

Radius: 14.4

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 2.26 AU - 2.72 AU

Year: 2712 Days

Day: 13.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 45,028,966 km

• M1: 179,817 km (0.116 R)
• M2: 636,988 km (0.084 R)
• M3: 1,187,358 km (0.117 R)
• M4: 1,946,119 km (0.078 R)
• M5: 2,398,203 km (0.117 R)
• M6: 3,521,085 km (0.1 R)
• M7: 4,502,896 km (0.105 R)
• M8: 5,081,092 km (0.051 R)
• M9: 6,283,709 km (0.098 R)
• M10: 7,405,095 km (0.067 R)
• M11: 9,485,552 km (0.059 R)
• M12: 10,331,079 km (0.119 R)
• M13: 12,624,116 km (0.115 R)
• M14: 13,129,158 km (0.107 R)
• M15: 13,603,982 km (0.109 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797.6

Radius: 10.3

Gravity: 7.52 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 2.79 AU - 3.29 AU

Year: 3659 Days

Day: 6.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 45,028,966 km

• M1: 128,056 km (0.079 R)
• M2: 510,278 km (0.056 R)
• M3: 877,990 km (0.096 R)
• M4: 1,266,795 km (0.106 R)
• M5: 1,722,021 km (0.109 R)
• M6: 2,626,490 km (0.097 R)
• M7: 3,394,675 km (0.116 R)
• M8: 4,306,025 km (0.057 R)
• M9: 5,616,951 km (0.081 R)
• M10: 6,040,463 km (0.118 R)
• M11: 6,731,306 km (0.104 R)
• M12: 7,473,910 km (0.092 R)
• M13: 7,882,611 km (0.037 R)
• M14: 9,160,326 km (0.097 R)
• M15: 9,708,453 km (0.063 R)
• M16: 10,999,931 km (0.111 R)
• M17: 11,484,778 km (0.103 R)
• M18: 13,467,997 km (0.072 R)
• M19: 14,593,272 km (0.068 R)
• M20: 16,397,123 km (0.094 R)
• M21: 16,913,984 km (0.073 R)
• M22: 19,598,219 km (0.107 R)
• M23: 21,927,009 km (0.101 R)
• M24: 22,413,950 km (0.094 R)
• M25: 23,050,638 km (0.074 R)
• M26: 23,918,306 km (0.076 R)
• M27: 24,583,119 km (0.068 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.9

Radius: 10.9

Gravity: 8.17 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 4.24 AU - 5.7 AU

Year: 7648 Days

Day: 13.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 45,028,966 km

• M1: 135,835 km (0.058 R)
• M2: 600,635 km (0.117 R)
• M3: 1,434,494 km (0.108 R)
• M4: 1,869,076 km (0.112 R)
• M5: 2,230,055 km (0.071 R)
• M6: 2,717,445 km (0.057 R)
• M7: 4,172,135 km (0.117 R)
• M8: 5,352,761 km (0.114 R)
• M9: 8,189,735 km (0.069 R)
• M10: 12,635,934 km (0.101 R)
• M11: 14,565,148 km (0.118 R)
• M12: 15,866,350 km (0.052 R)
• M13: 16,822,281 km (0.088 R)
• M14: 18,253,783 km (0.076 R)
• M15: 18,624,037 km (0.115 R)
• M16: 19,456,250 km (0.105 R)
• M17: 21,769,183 km (0.037 R)
• M18: 22,949,061 km (0.081 R)
• M19: 31,677,499 km (0.094 R)
• M20: 32,320,470 km (0.065 R)
• M21: 34,639,537 km (0.087 R)
• M22: 35,897,505 km (0.108 R)
• M23: 36,831,445 km (0.096 R)
• M24: 40,227,915 km (0.049 R)
• M25: 43,563,648 km (0.115 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 232 - 19,816 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit