🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.97

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.6 AU - 0.6 AU

Year: 296 Days

Day: 31.2 Hours

Environment

Temp: -124 °C

Axial Tilt: 23.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.53

Radius: 1.19

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.63 AU - 0.69 AU

Year: 341 Days

Day: 15.4 Hours

Environment

Temp: -135 °C

Axial Tilt: 35.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 782.2

Radius: 14.4

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.57 AU - 0.81 AU

Year: 364 Days

Day: 9.7 Hours

Environment

Temp: -130 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 37,694,042 km

• M1: 179,069 km (0.046 R)
• M2: 651,798 km (0.117 R)
• M3: 1,104,780 km (0.093 R)
• M4: 1,839,605 km (0.08 R)
• M5: 2,707,422 km (0.116 R)
• M6: 3,214,559 km (0.107 R)
• M7: 3,699,705 km (0.092 R)
• M8: 4,154,482 km (0.117 R)
• M9: 4,675,382 km (0.076 R)
• M10: 5,395,846 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 987.4

Radius: 10.5

Gravity: 8.96 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.82 AU - 1 AU

Year: 552 Days

Day: 11.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,694,042 km

• M1: 131,048 km (0.088 R)
• M2: 521,498 km (0.071 R)
• M3: 1,305,989 km (0.112 R)
• M4: 1,806,245 km (0.061 R)
• M5: 2,349,734 km (0.114 R)
• M6: 2,699,494 km (0.106 R)
• M7: 3,864,412 km (0.116 R)
• M8: 4,202,354 km (0.036 R)
• M9: 5,178,480 km (0.04 R)
• M10: 5,664,224 km (0.064 R)
• M11: 6,239,578 km (0.101 R)
• M12: 6,623,895 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569.9

Radius: 8.7

Gravity: 7.53 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.91 AU - 0.99 AU

Year: 589 Days

Day: 8.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,694,042 km

• M1: 108,159 km (0.071 R)
• M2: 379,081 km (0.109 R)
• M3: 703,858 km (0.099 R)
• M4: 1,177,186 km (0.119 R)
• M5: 1,763,310 km (0.094 R)
• M6: 2,047,396 km (0.07 R)
• M7: 2,372,024 km (0.09 R)
• M8: 2,698,746 km (0.114 R)
• M9: 3,851,098 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.6

Radius: 8.2

Gravity: 13.96 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.3 AU - 1.36 AU

Year: 975 Days

Day: 12.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,694,042 km

• M1: 102,026 km (0.059 R)
• M2: 416,032 km (0.05 R)
• M3: 720,164 km (0.069 R)
• M4: 1,385,127 km (0.115 R)
• M5: 1,710,203 km (0.099 R)
• M6: 2,328,341 km (0.12 R)
• M7: 2,614,223 km (0.09 R)
• M8: 2,977,596 km (0.118 R)
• M9: 5,529,885 km (0.029 R)
• M10: 7,162,297 km (0.062 R)
• M11: 10,398,698 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577.9

Radius: 9.3

Gravity: 6.68 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.41 AU - 1.49 AU

Year: 1110 Days

Day: 10.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 37,694,042 km

• M1: 115,639 km (0.117 R)
• M2: 480,808 km (0.109 R)
• M3: 787,782 km (0.106 R)
• M4: 1,129,314 km (0.106 R)
• M5: 1,424,471 km (0.08 R)
• M6: 2,041,861 km (0.084 R)
• M7: 2,522,220 km (0.051 R)
• M8: 3,368,794 km (0.084 R)
• M9: 4,533,115 km (0.108 R)
• M10: 4,931,643 km (0.074 R)
• M11: 5,925,272 km (0.103 R)
• M12: 6,269,796 km (0.097 R)
• M13: 6,696,449 km (0.051 R)
• M14: 7,835,488 km (0.089 R)
• M15: 9,098,842 km (0.083 R)
• M16: 9,794,023 km (0.111 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 894

Radius: 13.1

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.98 AU - 3.18 AU

Year: 2635 Days

Day: 10.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 37,694,042 km

• M1: 163,660 km (0.102 R)
• M2: 622,028 km (0.087 R)
• M3: 1,086,829 km (0.034 R)
• M4: 1,551,031 km (0.095 R)
• M5: 2,409,573 km (0.077 R)
• M6: 2,882,003 km (0.041 R)
• M7: 3,290,106 km (0.115 R)
• M8: 4,182,607 km (0.08 R)
• M9: 4,778,006 km (0.117 R)
• M10: 5,737,677 km (0.069 R)
• M11: 6,389,774 km (0.047 R)
• M12: 7,090,789 km (0.11 R)
• M13: 7,842,369 km (0.03 R)
• M14: 8,891,349 km (0.085 R)
• M15: 11,433,765 km (0.119 R)
• M16: 12,646,705 km (0.03 R)
• M17: 15,842,863 km (0.11 R)
• M18: 16,530,714 km (0.099 R)
• M19: 17,238,312 km (0.118 R)
• M20: 18,193,943 km (0.069 R)
• M21: 19,007,307 km (0.106 R)
• M22: 19,966,229 km (0.102 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 233.3

Radius: 9.1

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 2.2 AU - 3.44 AU

Year: 3011 Days

Day: 13.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 37,694,042 km

• M1: 113,246 km (0.116 R)
• M2: 447,896 km (0.11 R)
• M3: 747,541 km (0.105 R)
• M4: 1,218,923 km (0.027 R)
• M5: 1,901,539 km (0.078 R)
• M6: 2,260,424 km (0.07 R)
• M7: 3,025,168 km (0.102 R)
• M8: 3,517,495 km (0.101 R)
• M9: 3,844,964 km (0.078 R)
• M10: 4,462,654 km (0.086 R)
• M11: 4,805,832 km (0.09 R)
• M12: 5,232,186 km (0.098 R)
• M13: 5,545,593 km (0.09 R)
• M14: 6,063,351 km (0.117 R)
• M15: 6,953,309 km (0.078 R)
• M16: 7,697,259 km (0.12 R)
• M17: 8,895,987 km (0.108 R)
• M18: 11,322,764 km (0.098 R)
• M19: 11,734,607 km (0.074 R)
• M20: 14,116,953 km (0.116 R)

Planet 10 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 675.3

Radius: 13.7

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 4.72 AU - 5.2 AU

Year: 7024 Days

Day: 14.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 37,694,042 km

• M1: 172,935 km (0.036 R)
• M2: 609,312 km (0.053 R)
• M3: 1,193,641 km (0.116 R)
• M4: 1,965,267 km (0.105 R)
• M5: 2,553,935 km (0.059 R)
• M6: 3,237,747 km (0.082 R)
• M7: 3,822,824 km (0.118 R)
• M8: 4,398,477 km (0.119 R)
• M9: 5,003,002 km (0.049 R)
• M10: 6,830,938 km (0.101 R)
• M11: 8,356,836 km (0.094 R)
• M12: 9,597,751 km (0.065 R)
• M13: 11,205,329 km (0.077 R)
• M14: 12,284,080 km (0.039 R)
• M15: 13,318,698 km (0.109 R)
• M16: 14,176,044 km (0.119 R)
• M17: 19,817,978 km (0.079 R)
• M18: 20,708,684 km (0.086 R)
• M19: 23,871,332 km (0.05 R)
• M20: 25,481,005 km (0.117 R)
• M21: 26,004,149 km (0.072 R)
• M22: 26,981,622 km (0.068 R)
• M23: 28,821,675 km (0.117 R)
• M24: 33,161,809 km (0.048 R)
• M25: 33,995,219 km (0.039 R)
• M26: 34,949,503 km (0.097 R)
• M27: 36,911,479 km (0.109 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 365 - 12,685 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit