🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.47 AU - 0.61 AU

Year: 260 Days

Day: 16.1 Hours

Environment

Temp: -111 °C

Axial Tilt: 16.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.47 AU - 0.63 AU

Year: 268 Days

Day: 35 Hours

Environment

Temp: -129 °C

Axial Tilt: 20.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 978.5

Radius: 8.9

Gravity: 12.35 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.74 AU - 0.9 AU

Year: 487 Days

Day: 14.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,638,954 km

• M1: 110,702 km (0.043 R)
• M2: 406,906 km (0.079 R)
• M3: 731,234 km (0.115 R)
• M4: 1,107,473 km (0.084 R)
• M5: 1,649,616 km (0.117 R)
• M6: 2,057,569 km (0.083 R)
• M7: 2,419,446 km (0.109 R)
• M8: 2,801,220 km (0.11 R)
• M9: 4,403,413 km (0.109 R)
• M10: 5,125,373 km (0.099 R)
• M11: 6,246,758 km (0.117 R)
• M12: 6,722,180 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.1

Radius: 12.8

Gravity: 5.82 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1 AU - 1.58 AU

Year: 961 Days

Day: 15 Hours

Environment

Temp: -165 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,638,954 km

• M1: 159,322 km (0.109 R)
• M2: 560,693 km (0.076 R)
• M3: 1,027,289 km (0.098 R)
• M4: 1,543,252 km (0.102 R)
• M5: 2,849,540 km (0.079 R)
• M6: 3,313,742 km (0.116 R)
• M7: 4,811,965 km (0.118 R)
• M8: 6,840,063 km (0.079 R)
• M9: 8,150,990 km (0.108 R)
• M10: 8,922,915 km (0.115 R)
• M11: 9,356,300 km (0.117 R)
• M12: 10,741,277 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 618.2

Radius: 13.5

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.33 AU - 2.03 AU

Year: 1428 Days

Day: 9.5 Hours

Environment

Temp: -186 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 41,638,954 km

• M1: 167,849 km (0.105 R)
• M2: 645,964 km (0.102 R)
• M3: 1,153,998 km (0.095 R)
• M4: 1,575,266 km (0.068 R)
• M5: 2,212,104 km (0.046 R)
• M6: 2,961,290 km (0.069 R)
• M7: 3,381,061 km (0.069 R)
• M8: 3,941,306 km (0.081 R)
• M9: 4,676,130 km (0.066 R)
• M10: 5,147,513 km (0.057 R)
• M11: 6,279,371 km (0.097 R)
• M12: 6,830,190 km (0.087 R)
• M13: 7,335,382 km (0.091 R)
• M14: 7,974,464 km (0.097 R)
• M15: 9,273,123 km (0.11 R)
• M16: 10,021,113 km (0.027 R)
• M17: 11,391,878 km (0.054 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.8

Radius: 12.5

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 3.35 AU - 5.43 AU

Year: 6034 Days

Day: 5.5 Hours

Environment

Temp: -209 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 41,638,954 km

• M1: 167,550 km (0.091 R)
• M2: 675,135 km (0.094 R)
• M3: 1,574,218 km (0.091 R)
• M4: 2,031,988 km (0.053 R)
• M5: 3,562,075 km (0.12 R)
• M6: 4,594,749 km (0.082 R)
• M7: 5,941,579 km (0.086 R)
• M8: 8,374,190 km (0.107 R)
• M9: 11,801,327 km (0.052 R)
• M10: 21,196,223 km (0.116 R)
• M11: 21,792,371 km (0.084 R)
• M12: 22,707,610 km (0.088 R)
• M13: 23,568,845 km (0.106 R)
• M14: 25,775,264 km (0.106 R)
• M15: 26,798,813 km (0.115 R)
• M16: 29,384,014 km (0.085 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.4

Radius: 14

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 4.7 AU - 5.76 AU

Year: 7846 Days

Day: 7 Hours

Environment

Temp: -209 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 41,638,954 km

• M1: 178,919 km (0.054 R)
• M2: 691,890 km (0.109 R)
• M3: 1,271,432 km (0.04 R)
• M4: 1,732,942 km (0.04 R)
• M5: 2,867,791 km (0.108 R)
• M6: 3,587,207 km (0.105 R)
• M7: 4,054,252 km (0.111 R)
• M8: 5,419,632 km (0.11 R)
• M9: 5,937,390 km (0.066 R)
• M10: 7,262,677 km (0.069 R)
• M11: 9,085,827 km (0.108 R)
• M12: 10,542,312 km (0.069 R)
• M13: 11,933,273 km (0.12 R)
• M14: 13,560,149 km (0.049 R)
• M15: 14,457,587 km (0.09 R)
• M16: 17,319,544 km (0.109 R)
• M17: 18,957,042 km (0.088 R)
• M18: 20,385,851 km (0.112 R)
• M19: 21,324,578 km (0.091 R)
• M20: 24,227,674 km (0.104 R)
• M21: 25,280,843 km (0.065 R)
• M22: 30,806,839 km (0.064 R)
• M23: 32,567,756 km (0.114 R)
• M24: 38,488,091 km (0.057 R)
• M25: 41,514,756 km (0.05 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 177 - 13,159 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit