🌌 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: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.9

Radius: 0.96

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.52 AU - 0.56 AU

Year: 256 Days

Day: 20.3 Hours

Environment

Temp: -122 °C

Axial Tilt: 5.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 41,486,468 km

• M1: 95,743 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.1

Radius: 11

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.86 AU - 1.02 AU

Year: 588 Days

Day: 8.1 Hours

Environment

Temp: -145 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,486,468 km

• M1: 139,575 km (0.117 R)
• M2: 527,931 km (0.1 R)
• M3: 1,002,904 km (0.1 R)
• M4: 1,442,273 km (0.088 R)
• M5: 1,828,385 km (0.1 R)
• M6: 2,647,583 km (0.066 R)
• M7: 2,989,863 km (0.063 R)
• M8: 3,351,291 km (0.113 R)
• M9: 4,003,089 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 607.3

Radius: 10

Gravity: 6.07 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.85 AU - 2.43 AU

Year: 2021 Days

Day: 11.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 41,486,468 km

• M1: 124,316 km (0.055 R)
• M2: 455,226 km (0.119 R)
• M3: 870,809 km (0.069 R)
• M4: 1,216,829 km (0.111 R)
• M5: 1,529,788 km (0.078 R)
• M6: 2,324,153 km (0.108 R)
• M7: 2,728,067 km (0.105 R)
• M8: 3,084,708 km (0.03 R)
• M9: 3,874,585 km (0.099 R)
• M10: 4,793,714 km (0.107 R)
• M11: 5,475,432 km (0.114 R)
• M12: 5,900,140 km (0.054 R)
• M13: 6,578,566 km (0.111 R)
• M14: 7,113,977 km (0.052 R)
• M15: 8,211,128 km (0.112 R)
• M16: 9,384,274 km (0.075 R)
• M17: 9,959,329 km (0.066 R)
• M18: 13,277,409 km (0.063 R)
• M19: 15,624,899 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.7

Radius: 14.2

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 2.8 AU - 3.62 AU

Year: 3713 Days

Day: 12.9 Hours

Environment

Temp: -199 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 41,486,468 km

• M1: 176,825 km (0.102 R)
• M2: 701,016 km (0.072 R)
• M3: 1,452,595 km (0.1 R)
• M4: 3,038,034 km (0.088 R)
• M5: 4,111,099 km (0.043 R)
• M6: 4,619,881 km (0.096 R)
• M7: 8,614,444 km (0.117 R)
• M8: 9,155,090 km (0.057 R)
• M9: 9,642,032 km (0.044 R)
• M10: 11,250,059 km (0.098 R)
• M11: 12,162,756 km (0.084 R)
• M12: 12,890,699 km (0.058 R)
• M13: 14,534,630 km (0.081 R)
• M14: 15,198,695 km (0.055 R)
• M15: 15,829,699 km (0.052 R)
• M16: 17,144,066 km (0.085 R)
• M17: 19,008,354 km (0.107 R)
• M18: 19,803,168 km (0.109 R)
• M19: 20,811,607 km (0.086 R)
• M20: 21,854,005 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 860.9

Radius: 9.7

Gravity: 9.15 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 4.21 AU - 4.25 AU

Year: 5617 Days

Day: 12 Hours

Environment

Temp: -219 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 41,486,468 km

• M1: 124,017 km (0.116 R)
• M2: 464,501 km (0.068 R)
• M3: 899,382 km (0.072 R)
• M4: 1,238,521 km (0.067 R)
• M5: 1,651,261 km (0.099 R)
• M6: 2,300,067 km (0.081 R)
• M7: 2,891,577 km (0.095 R)
• M8: 3,255,100 km (0.093 R)
• M9: 5,927,816 km (0.097 R)
• M10: 6,484,170 km (0.118 R)
• M11: 7,039,178 km (0.113 R)
• M12: 8,404,109 km (0.091 R)
• M13: 9,892,758 km (0.091 R)
• M14: 10,210,354 km (0.078 R)
• M15: 10,581,656 km (0.093 R)
• M16: 11,400,854 km (0.054 R)
• M17: 11,851,443 km (0.105 R)
• M18: 13,219,814 km (0.047 R)
• M19: 16,080,425 km (0.037 R)
• M20: 16,393,683 km (0.12 R)
• M21: 19,827,103 km (0.119 R)
• M22: 20,552,503 km (0.065 R)
• M23: 20,921,711 km (0.091 R)
• M24: 22,756,080 km (0.118 R)
• M25: 23,230,904 km (0.112 R)
• M26: 25,028,771 km (0.058 R)
• M27: 29,550,067 km (0.102 R)
• M28: 35,110,620 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 228.8

Radius: 13.1

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 3.43 AU - 5.41 AU

Year: 6000 Days

Day: 10.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 41,486,468 km

• M1: 162,912 km (0.091 R)
• M2: 635,791 km (0.081 R)
• M3: 1,078,301 km (0.096 R)
• M4: 1,644,230 km (0.096 R)
• M5: 2,435,005 km (0.099 R)
• M6: 3,680,706 km (0.108 R)
• M7: 4,723,553 km (0.049 R)
• M8: 6,795,782 km (0.09 R)
• M9: 8,084,568 km (0.079 R)
• M10: 8,572,257 km (0.113 R)
• M11: 9,190,844 km (0.116 R)
• M12: 10,436,247 km (0.109 R)
• M13: 11,057,527 km (0.039 R)
• M14: 13,452,289 km (0.095 R)
• M15: 15,264,368 km (0.095 R)
• M16: 16,615,237 km (0.087 R)
• M17: 17,120,429 km (0.08 R)
• M18: 18,940,138 km (0.092 R)
• M19: 20,498,947 km (0.108 R)
• M20: 21,739,712 km (0.102 R)
• M21: 22,960,730 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933.8

Radius: 14.9

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 4.26 AU - 5.44 AU

Year: 6896 Days

Day: 13.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 41,486,468 km

• M1: 185,501 km (0.114 R)
• M2: 936,632 km (0.114 R)
• M3: 1,415,645 km (0.109 R)
• M4: 2,328,640 km (0.095 R)
• M5: 2,808,850 km (0.097 R)
• M6: 3,632,087 km (0.117 R)
• M7: 5,472,889 km (0.096 R)
• M8: 6,026,101 km (0.049 R)
• M9: 6,834,379 km (0.096 R)
• M10: 7,594,934 km (0.071 R)
• M11: 8,797,701 km (0.042 R)
• M12: 9,331,167 km (0.107 R)
• M13: 10,076,165 km (0.112 R)
• M14: 13,460,218 km (0.075 R)
• M15: 13,990,393 km (0.089 R)
• M16: 16,786,227 km (0.112 R)
• M17: 19,559,622 km (0.049 R)
• M18: 20,859,329 km (0.114 R)
• M19: 21,730,437 km (0.097 R)
• M20: 22,708,358 km (0.068 R)
• M21: 23,376,612 km (0.096 R)
• M22: 30,495,077 km (0.057 R)
• M23: 32,241,333 km (0.095 R)
• M24: 32,767,319 km (0.05 R)
• M25: 36,271,051 km (0.114 R)
• M26: 39,296,069 km (0.061 R)
• M27: 39,896,555 km (0.072 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: 456 - 15,722 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit