🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.2

Radius: 15

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.39 AU - 0.63 AU

Year: 251 Days

Day: 8.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 67,760,546 km

• M1: 186,549 km (0.085 R)
• M2: 723,306 km (0.079 R)
• M3: 1,199,177 km (0.037 R)
• M4: 1,715,738 km (0.096 R)
• M5: 2,351,978 km (0.042 R)
• M6: 3,086,802 km (0.089 R)
• M7: 3,556,540 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 560.9

Radius: 8.4

Gravity: 7.95 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.51 AU - 0.61 AU

Year: 289 Days

Day: 8.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 67,760,546 km

• M1: 104,569 km (0.095 R)
• M2: 368,160 km (0.055 R)
• M3: 632,051 km (0.046 R)
• M4: 1,021,604 km (0.112 R)
• M5: 2,762,474 km (0.092 R)
• M6: 3,240,888 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 986.5

Radius: 14

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.69 AU - 0.87 AU

Year: 476 Days

Day: 7.1 Hours

Environment

Temp: -159 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,760,546 km

• M1: 174,132 km (0.118 R)
• M2: 752,477 km (0.099 R)
• M3: 1,352,514 km (0.09 R)
• M4: 2,411,518 km (0.111 R)
• M5: 2,903,545 km (0.09 R)
• M6: 3,513,755 km (0.079 R)
• M7: 3,981,398 km (0.054 R)
• M8: 4,505,888 km (0.119 R)
• M9: 4,994,325 km (0.058 R)
• M10: 5,748,747 km (0.113 R)
• M11: 6,344,147 km (0.111 R)
• M12: 6,898,706 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 334.6

Radius: 13.5

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.9 AU - 1.2 AU

Year: 743 Days

Day: 8.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 67,760,546 km

• M1: 168,148 km (0.066 R)
• M2: 625,917 km (0.045 R)
• M3: 1,208,900 km (0.108 R)
• M4: 1,687,614 km (0.088 R)
• M5: 2,407,628 km (0.03 R)
• M6: 3,171,026 km (0.049 R)
• M7: 3,739,648 km (0.12 R)
• M8: 4,464,150 km (0.043 R)
• M9: 5,866,480 km (0.086 R)
• M10: 6,572,732 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.3

Radius: 10.8

Gravity: 8.56 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.12 AU - 1.8 AU

Year: 1218 Days

Day: 12.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 67,760,546 km

• M1: 134,638 km (0.117 R)
• M2: 480,508 km (0.074 R)
• M3: 980,165 km (0.055 R)
• M4: 1,354,758 km (0.106 R)
• M5: 1,717,982 km (0.098 R)
• M6: 2,102,000 km (0.085 R)
• M7: 2,505,465 km (0.036 R)
• M8: 3,502,535 km (0.089 R)
• M9: 4,163,010 km (0.058 R)
• M10: 6,191,706 km (0.11 R)
• M11: 6,926,681 km (0.089 R)
• M12: 7,636,971 km (0.095 R)
• M13: 8,193,924 km (0.117 R)
• M14: 9,641,433 km (0.066 R)
• M15: 12,346,761 km (0.03 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 217.1

Radius: 10.2

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 2.48 AU - 2.58 AU

Year: 2778 Days

Day: 10.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 67,760,546 km

• M1: 126,859 km (0.081 R)
• M2: 617,839 km (0.101 R)
• M3: 1,585,737 km (0.106 R)
• M4: 2,483,624 km (0.108 R)
• M5: 3,030,853 km (0.115 R)
• M6: 3,606,954 km (0.12 R)
• M7: 3,983,193 km (0.107 R)
• M8: 4,998,813 km (0.07 R)
• M9: 5,445,961 km (0.103 R)
• M10: 6,371,673 km (0.098 R)
• M11: 7,617,374 km (0.073 R)
• M12: 8,683,109 km (0.072 R)
• M13: 11,215,801 km (0.111 R)
• M14: 13,543,993 km (0.089 R)
• M15: 13,871,612 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.2

Radius: 11.1

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 2.45 AU - 3.59 AU

Year: 3623 Days

Day: 6.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 67,760,546 km

• M1: 138,079 km (0.111 R)
• M2: 777,460 km (0.106 R)
• M3: 1,190,799 km (0.094 R)
• M4: 1,752,389 km (0.083 R)
• M5: 3,302,373 km (0.077 R)
• M6: 3,650,188 km (0.092 R)
• M7: 4,110,800 km (0.034 R)
• M8: 5,402,129 km (0.103 R)
• M9: 5,864,985 km (0.097 R)
• M10: 6,646,035 km (0.099 R)
• M11: 7,575,636 km (0.117 R)
• M12: 8,043,878 km (0.098 R)
• M13: 9,221,961 km (0.108 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.3

Radius: 8.1

Gravity: 10.4 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 3.81 AU - 4.59 AU

Year: 5941 Days

Day: 10.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 67,760,546 km

• M1: 100,829 km (0.053 R)
• M2: 1,674,449 km (0.108 R)
• M3: 2,391,621 km (0.06 R)
• M4: 6,750,305 km (0.1 R)
• M5: 11,571,395 km (0.079 R)
• M6: 12,071,501 km (0.079 R)
• M7: 14,160,785 km (0.116 R)
• M8: 14,732,997 km (0.097 R)
• M9: 16,046,167 km (0.111 R)
• M10: 16,355,086 km (0.12 R)
• M11: 17,048,921 km (0.06 R)
• M12: 17,370,706 km (0.099 R)
• M13: 18,766,754 km (0.083 R)
• M14: 21,183,208 km (0.09 R)
• M15: 23,481,181 km (0.065 R)
• M16: 23,879,710 km (0.044 R)
• M17: 25,602,928 km (0.088 R)
• M18: 26,796,868 km (0.088 R)
• M19: 27,144,683 km (0.106 R)
• M20: 29,479,457 km (0.094 R)
• M21: 33,227,781 km (0.1 R)
• M22: 33,528,623 km (0.065 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 852.6

Radius: 6.9

Gravity: 17.91 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 7.65 AU - 7.97 AU

Year: 15066 Days

Day: 20.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 67,760,546 km

• M1: 123,119 km (0.077 R)
• M2: 473,926 km (0.108 R)
• M3: 1,289,085 km (0.086 R)
• M4: 1,685,669 km (0.083 R)
• M5: 1,987,109 km (0.118 R)
• M6: 3,376,574 km (0.044 R)
• M7: 3,597,829 km (0.055 R)
• M8: 7,112,032 km (0.027 R)
• M9: 8,905,412 km (0.046 R)
• M10: 13,153,842 km (0.119 R)
• M11: 14,126,677 km (0.097 R)
• M12: 17,826,381 km (0.087 R)
• M13: 18,585,291 km (0.118 R)
• M14: 19,897,863 km (0.033 R)
• M15: 22,608,876 km (0.069 R)
• M16: 25,556,403 km (0.027 R)
• M17: 26,629,468 km (0.061 R)
• M18: 31,465,519 km (0.114 R)
• M19: 38,086,271 km (0.053 R)
• M20: 41,353,938 km (0.039 R)
• M21: 58,475,713 km (0.049 R)
• M22: 66,149,336 km (0.06 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 169 - 12,640 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit