🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.3

Radius: 10

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.68 AU - 0.7 AU

Year: 376 Days

Day: 8.4 Hours

Environment

Temp: -128 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,921,046 km

• M1: 124,316 km (0.104 R)
• M2: 441,912 km (0.04 R)
• M3: 787,334 km (0.104 R)
• M4: 1,124,677 km (0.072 R)
• M5: 1,449,155 km (0.079 R)
• M6: 1,801,607 km (0.102 R)
• M7: 2,123,243 km (0.074 R)
• M8: 2,934,362 km (0.108 R)
• M9: 3,275,296 km (0.068 R)
• M10: 3,689,233 km (0.058 R)
• M11: 4,175,875 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.5

Radius: 15

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.63 AU - 0.77 AU

Year: 384 Days

Day: 8.6 Hours

Environment

Temp: -128 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 35,921,046 km

• M1: 186,549 km (0.112 R)
• M2: 668,852 km (0.098 R)
• M3: 1,139,637 km (0.034 R)
• M4: 1,651,710 km (0.115 R)
• M5: 2,211,057 km (0.047 R)
• M6: 3,009,311 km (0.118 R)
• M7: 4,520,698 km (0.06 R)
• M8: 5,049,377 km (0.042 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38.9

Radius: 14.8

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.73 AU - 0.77 AU

Year: 426 Days

Day: 9 Hours

Environment

Temp: -145 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 35,921,046 km

• M1: 192,532 km (0.076 R)
• M2: 668,702 km (0.111 R)
• M3: 1,326,036 km (0.066 R)
• M4: 1,914,404 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 643.1

Radius: 9

Gravity: 7.94 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.58 AU - 0.94 AU

Year: 435 Days

Day: 11.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 35,921,046 km

• M1: 112,049 km (0.034 R)
• M2: 409,599 km (0.113 R)
• M3: 757,115 km (0.105 R)
• M4: 1,171,202 km (0.095 R)
• M5: 1,548,338 km (0.041 R)
• M6: 2,298,272 km (0.074 R)
• M7: 2,822,613 km (0.115 R)
• M8: 3,192,269 km (0.062 R)
• M9: 3,897,773 km (0.117 R)
• M10: 4,246,186 km (0.056 R)
• M11: 4,586,222 km (0.111 R)
• M12: 4,929,100 km (0.033 R)
• M13: 5,257,168 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.4

Radius: 12.7

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.81 AU - 0.89 AU

Year: 514 Days

Day: 12.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,921,046 km

• M1: 157,975 km (0.113 R)
• M2: 637,287 km (0.085 R)
• M3: 1,126,472 km (0.053 R)
• M4: 1,673,103 km (0.108 R)
• M5: 2,254,141 km (0.107 R)
• M6: 2,889,932 km (0.091 R)
• M7: 3,293,098 km (0.055 R)
• M8: 3,757,001 km (0.069 R)
• M9: 4,328,166 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567.4

Radius: 13

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.91 AU - 0.93 AU

Year: 579 Days

Day: 10.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,921,046 km

• M1: 161,715 km (0.055 R)
• M2: 614,847 km (0.102 R)
• M3: 1,049,279 km (0.039 R)
• M4: 1,457,831 km (0.109 R)
• M5: 2,086,442 km (0.092 R)
• M6: 2,544,809 km (0.119 R)
• M7: 2,968,770 km (0.086 R)
• M8: 3,440,302 km (0.03 R)
• M9: 3,893,883 km (0.11 R)
• M10: 4,299,892 km (0.062 R)
• M11: 5,018,859 km (0.087 R)
• M12: 5,587,780 km (0.107 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 587.5

Radius: 14.2

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.02 AU - 1.12 AU

Year: 726 Days

Day: 10.8 Hours

Environment

Temp: -165 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,921,046 km

• M1: 176,675 km (0.102 R)
• M2: 654,191 km (0.084 R)
• M3: 1,349,971 km (0.115 R)
• M4: 1,833,771 km (0.066 R)
• M5: 2,613,325 km (0.112 R)
• M6: 3,081,118 km (0.052 R)
• M7: 3,578,531 km (0.097 R)
• M8: 4,129,500 km (0.117 R)
• M9: 4,623,771 km (0.114 R)
• M10: 5,844,938 km (0.109 R)
• M11: 6,470,557 km (0.052 R)
• M12: 7,140,606 km (0.05 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 62.7

Radius: 11.6

Gravity: 0.47 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.1 AU - 1.32 AU

Year: 873 Days

Day: 12.4 Hours

Environment

Temp: -173 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 35,921,046 km

• M1: 144,212 km (0.068 R)
• M2: 538,852 km (0.077 R)
• M3: 1,062,893 km (0.113 R)
• M4: 1,505,254 km (0.101 R)
• M5: 2,492,749 km (0.111 R)
• M6: 2,905,340 km (0.12 R)
• M7: 3,301,027 km (0.046 R)
• M8: 4,239,304 km (0.033 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 790.9

Radius: 10.3

Gravity: 7.45 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 3.38 AU - 5.32 AU

Year: 5952 Days

Day: 5.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 35,921,046 km

• M1: 128,505 km (0.097 R)
• M2: 729,888 km (0.083 R)
• M3: 1,714,242 km (0.04 R)
• M4: 2,811,393 km (0.107 R)
• M5: 3,578,830 km (0.113 R)
• M6: 4,248,131 km (0.086 R)
• M7: 6,420,890 km (0.111 R)
• M8: 8,017,698 km (0.082 R)
• M9: 9,378,141 km (0.052 R)
• M10: 10,886,536 km (0.09 R)
• M11: 11,423,443 km (0.11 R)
• M12: 16,503,039 km (0.085 R)
• M13: 19,675,112 km (0.07 R)
• M14: 20,767,625 km (0.09 R)
• M15: 28,005,021 km (0.118 R)
• M16: 29,386,258 km (0.084 R)
• M17: 33,189,634 km (0.095 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 286.6

Radius: 4.9

Gravity: 11.94 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 5.17 AU - 7.15 AU

Year: 10030 Days

Day: 17.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,921,046 km

• M1: 84,523 km (0.109 R)
• M2: 246,537 km (0.106 R)
• M3: 713,283 km (0.108 R)
• M4: 873,652 km (0.058 R)
• M5: 1,269,338 km (0.101 R)
• M6: 3,438,806 km (0.079 R)
• M7: 3,784,078 km (0.058 R)
• M8: 4,101,674 km (0.102 R)
• M9: 7,463,288 km (0.089 R)
• M10: 7,884,406 km (0.071 R)
• M11: 9,417,485 km (0.036 R)
• M12: 10,464,521 km (0.098 R)
• M13: 21,543,889 km (0.089 R)
• M14: 22,869,924 km (0.049 R)
• M15: 24,084,360 km (0.075 R)
• M16: 24,332,393 km (0.08 R)
• M17: 25,341,131 km (0.079 R)
• M18: 27,712,557 km (0.059 R)
• M19: 29,372,944 km (0.088 R)
• M20: 33,915,632 km (0.066 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: 262 - 14,419 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit