🌌 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 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.25

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.52 AU - 0.54 AU

Year: 253 Days

Day: 16 Hours

Environment

Temp: -117 °C

Axial Tilt: 41 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349.4

Radius: 10.3

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.74 AU - 0.78 AU

Year: 435 Days

Day: 11.3 Hours

Environment

Temp: -133 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 83,990,198 km

• M1: 130,001 km (0.096 R)
• M2: 523,144 km (0.092 R)
• M3: 1,133,054 km (0.115 R)
• M4: 1,634,806 km (0.119 R)
• M5: 1,957,039 km (0.096 R)
• M6: 2,297,225 km (0.101 R)
• M7: 2,686,479 km (0.08 R)
• M8: 3,610,694 km (0.073 R)
• M9: 3,990,822 km (0.049 R)
• M10: 4,371,250 km (0.092 R)

Asteroid Belt

Center: 1.17 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 654.4

Radius: 13.7

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.46 AU - 1.68 AU

Year: 1291 Days

Day: 7.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 83,990,198 km

• M1: 170,392 km (0.079 R)
• M2: 605,273 km (0.096 R)
• M3: 2,000,572 km (0.079 R)
• M4: 2,453,555 km (0.103 R)
• M5: 3,449,428 km (0.108 R)
• M6: 4,125,909 km (0.102 R)
• M7: 4,680,917 km (0.055 R)
• M8: 7,366,798 km (0.088 R)
• M9: 8,269,920 km (0.062 R)
• M10: 9,067,875 km (0.099 R)
• M11: 9,607,474 km (0.118 R)
• M12: 11,390,980 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.7

Radius: 8.4

Gravity: 12.17 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 3.98 AU - 4.32 AU

Year: 5546 Days

Day: 8.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 83,990,198 km

• M1: 105,915 km (0.116 R)
• M2: 374,443 km (0.091 R)
• M3: 859,889 km (0.069 R)
• M4: 1,181,374 km (0.116 R)
• M5: 1,520,363 km (0.099 R)
• M6: 2,231,851 km (0.111 R)
• M7: 2,572,635 km (0.117 R)
• M8: 3,128,391 km (0.106 R)
• M9: 3,601,718 km (0.116 R)
• M10: 3,951,179 km (0.085 R)
• M11: 4,400,421 km (0.072 R)
• M12: 4,995,223 km (0.111 R)
• M13: 5,430,852 km (0.114 R)
• M14: 6,648,279 km (0.076 R)
• M15: 7,357,672 km (0.075 R)
• M16: 8,234,914 km (0.099 R)
• M17: 8,637,332 km (0.069 R)
• M18: 13,033,266 km (0.075 R)
• M19: 14,545,102 km (0.101 R)
• M20: 17,449,993 km (0.12 R)
• M21: 19,282,717 km (0.074 R)
• M22: 19,564,858 km (0.11 R)
• M23: 21,165,556 km (0.088 R)
• M24: 21,768,734 km (0.099 R)
• M25: 27,366,686 km (0.101 R)
• M26: 29,832,658 km (0.103 R)
• M27: 32,046,856 km (0.118 R)
• M28: 32,442,841 km (0.1 R)
• M29: 33,650,395 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 581.8

Radius: 10.5

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 4.36 AU - 5.96 AU

Year: 7689 Days

Day: 12.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 83,990,198 km

• M1: 130,599 km (0.102 R)
• M2: 467,344 km (0.106 R)
• M3: 972,985 km (0.108 R)
• M4: 1,398,142 km (0.088 R)
• M5: 2,197,593 km (0.061 R)
• M6: 3,826,265 km (0.076 R)
• M7: 5,049,527 km (0.112 R)
• M8: 6,310,786 km (0.106 R)
• M9: 8,168,941 km (0.065 R)
• M10: 8,876,539 km (0.083 R)
• M11: 9,715,185 km (0.105 R)
• M12: 10,366,384 km (0.072 R)
• M13: 13,153,842 km (0.05 R)
• M14: 15,330,042 km (0.118 R)
• M15: 18,218,178 km (0.079 R)
• M16: 19,497,689 km (0.118 R)
• M17: 22,235,330 km (0.068 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 37.7

Radius: 6

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 6.62 AU - 10.66 AU

Year: 16660 Days

Day: 22.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 83,990,198 km

• M1: 297,999 km (0.05 R)
• M2: 2,035,877 km (0.106 R)
• M3: 2,710,265 km (0.115 R)
• M4: 3,986,933 km (0.062 R)
• M5: 7,254,150 km (0.089 R)
• M6: 13,602,037 km (0.103 R)
• M7: 16,268,469 km (0.092 R)
• M8: 18,514,083 km (0.078 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 874.6

Radius: 6.2

Gravity: 22.75 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 9.9 AU - 9.96 AU

Year: 20527 Days

Day: 15.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 83,990,198 km

• M1: 81,082 km (0.092 R)
• M2: 395,686 km (0.097 R)
• M3: 2,904,891 km (0.089 R)
• M4: 3,404,399 km (0.119 R)
• M5: 3,959,556 km (0.083 R)
• M6: 5,131,656 km (0.114 R)
• M7: 6,294,031 km (0.047 R)
• M8: 6,518,727 km (0.109 R)
• M9: 7,031,998 km (0.092 R)
• M10: 7,471,666 km (0.112 R)
• M11: 7,877,674 km (0.119 R)
• M12: 9,829,029 km (0.049 R)
• M13: 10,193,150 km (0.118 R)
• M14: 10,629,228 km (0.108 R)
• M15: 11,672,972 km (0.104 R)
• M16: 13,217,121 km (0.061 R)
• M17: 15,131,675 km (0.061 R)
• M18: 16,962,903 km (0.062 R)
• M19: 21,766,490 km (0.074 R)
• M20: 24,421,703 km (0.084 R)
• M21: 28,982,792 km (0.12 R)
• M22: 29,605,718 km (0.107 R)
• M23: 33,805,678 km (0.076 R)
• M24: 34,774,623 km (0.096 R)
• M25: 36,334,331 km (0.088 R)
• M26: 42,719,168 km (0.103 R)
• M27: 44,014,536 km (0.049 R)
• M28: 49,105,651 km (0.067 R)
• M29: 50,526,681 km (0.116 R)
• M30: 52,157,746 km (0.11 R)
• M31: 58,044,871 km (0.045 R)
• M32: 64,782,161 km (0.102 R)
• M33: 68,009,586 km (0.09 R)
• M34: 71,568,669 km (0.086 R)
• M35: 78,813,843 km (0.112 R)
• M36: 82,987,324 km (0.053 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: 255 - 18,076 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit