🌌 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 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.9

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.49 AU - 0.53 AU

Year: 235 Days

Day: 46.2 Hours

Environment

Temp: -109 °C

Axial Tilt: 2.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.47 AU - 0.67 AU

Year: 278 Days

Day: 21.3 Hours

Environment

Temp: -115 °C

Axial Tilt: 109.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339.9

Radius: 13.4

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.61 AU - 0.81 AU

Year: 386 Days

Day: 8.6 Hours

Environment

Temp: -141 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 58,236,336 km

• M1: 171,439 km (0.094 R)
• M2: 1,160,431 km (0.106 R)
• M3: 1,671,607 km (0.08 R)
• M4: 2,576,823 km (0.071 R)
• M5: 3,086,354 km (0.074 R)
• M6: 3,809,809 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.5

Radius: 14.2

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.03 AU - 1.05 AU

Year: 685 Days

Day: 8.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 58,236,336 km

• M1: 176,974 km (0.117 R)
• M2: 743,352 km (0.116 R)
• M3: 1,315,115 km (0.118 R)
• M4: 1,878,052 km (0.076 R)
• M5: 2,325,499 km (0.055 R)
• M6: 2,773,993 km (0.076 R)
• M7: 3,340,969 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886.2

Radius: 14.2

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 3.16 AU - 3.9 AU

Year: 4282 Days

Day: 12.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 67.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 58,236,336 km

• M1: 176,525 km (0.059 R)
• M2: 642,972 km (0.11 R)
• M3: 1,134,101 km (0.114 R)
• M4: 1,646,624 km (0.096 R)
• M5: 2,828,746 km (0.113 R)
• M6: 3,298,035 km (0.026 R)
• M7: 4,493,770 km (0.061 R)
• M8: 5,784,202 km (0.071 R)
• M9: 6,327,541 km (0.117 R)
• M10: 7,343,460 km (0.074 R)
• M11: 7,872,738 km (0.081 R)
• M12: 8,503,592 km (0.119 R)
• M13: 10,468,410 km (0.062 R)
• M14: 11,003,671 km (0.072 R)
• M15: 11,510,359 km (0.079 R)
• M16: 12,720,307 km (0.07 R)
• M17: 15,053,435 km (0.116 R)
• M18: 17,225,896 km (0.089 R)
• M19: 17,910,306 km (0.1 R)
• M20: 19,400,001 km (0.108 R)
• M21: 20,004,826 km (0.096 R)
• M22: 24,442,198 km (0.099 R)
• M23: 25,546,230 km (0.086 R)
• M24: 26,191,894 km (0.073 R)
• M25: 28,108,991 km (0.115 R)
• M26: 29,673,336 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 985.2

Radius: 8

Gravity: 15.39 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 3.92 AU - 5.58 AU

Year: 6684 Days

Day: 8.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 58,236,336 km

• M1: 100,231 km (0.032 R)
• M2: 532,868 km (0.116 R)
• M3: 911,649 km (0.091 R)
• M4: 1,270,236 km (0.109 R)
• M5: 1,542,354 km (0.12 R)
• M6: 2,275,533 km (0.101 R)
• M7: 2,547,203 km (0.112 R)
• M8: 3,222,637 km (0.104 R)
• M9: 5,195,833 km (0.097 R)
• M10: 5,445,362 km (0.119 R)
• M11: 6,002,465 km (0.107 R)
• M12: 6,277,575 km (0.056 R)
• M13: 7,944,096 km (0.118 R)
• M14: 9,057,104 km (0.067 R)
• M15: 12,344,218 km (0.071 R)
• M16: 12,677,522 km (0.076 R)
• M17: 15,759,238 km (0.09 R)
• M18: 16,483,890 km (0.076 R)
• M19: 17,507,588 km (0.082 R)
• M20: 18,213,242 km (0.107 R)
• M21: 18,791,437 km (0.076 R)
• M22: 21,068,467 km (0.088 R)
• M23: 21,947,653 km (0.081 R)
• M24: 22,602,293 km (0.12 R)
• M25: 23,185,576 km (0.096 R)
• M26: 24,556,790 km (0.083 R)
• M27: 28,219,694 km (0.033 R)
• M28: 28,604,758 km (0.03 R)
• M29: 29,287,374 km (0.071 R)
• M30: 31,194,746 km (0.039 R)
• M31: 34,154,241 km (0.072 R)
• M32: 34,701,769 km (0.09 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 293.8

Radius: 11.7

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 4.28 AU - 5.34 AU

Year: 6811 Days

Day: 5.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 58,236,336 km

• M1: 145,559 km (0.054 R)
• M2: 596,297 km (0.108 R)
• M3: 1,040,752 km (0.111 R)
• M4: 1,488,050 km (0.069 R)
• M5: 2,648,630 km (0.096 R)
• M6: 3,341,119 km (0.066 R)
• M7: 3,948,037 km (0.058 R)
• M8: 5,086,926 km (0.064 R)
• M9: 6,068,886 km (0.095 R)
• M10: 6,526,656 km (0.095 R)
• M11: 7,511,758 km (0.057 R)
• M12: 8,040,287 km (0.027 R)
• M13: 11,983,986 km (0.057 R)
• M14: 12,462,699 km (0.085 R)
• M15: 12,854,646 km (0.119 R)
• M16: 13,975,433 km (0.063 R)
• M17: 15,550,998 km (0.065 R)
• M18: 17,606,323 km (0.098 R)
• M19: 18,859,056 km (0.087 R)
• M20: 19,376,515 km (0.073 R)
• M21: 21,681,967 km (0.05 R)
• M22: 25,084,272 km (0.039 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 137.8

Radius: 9

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 4.31 AU - 5.65 AU

Year: 7176 Days

Day: 10.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,236,336 km

• M1: 142,567 km (0.055 R)
• M2: 453,581 km (0.117 R)
• M3: 924,216 km (0.086 R)
• M4: 1,666,969 km (0.045 R)
• M5: 2,962,487 km (0.038 R)
• M6: 4,173,332 km (0.096 R)
• M7: 9,225,401 km (0.095 R)
• M8: 10,179,238 km (0.064 R)
• M9: 16,991,177 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 695.7

Radius: 6.1

Gravity: 18.7 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 6.18 AU - 8.84 AU

Year: 13288 Days

Day: 23.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 58,236,336 km

• M1: 76,445 km (0.074 R)
• M2: 346,768 km (0.075 R)
• M3: 569,669 km (0.061 R)
• M4: 840,291 km (0.101 R)
• M5: 1,394,103 km (0.107 R)
• M6: 1,584,241 km (0.093 R)
• M7: 2,382,047 km (0.104 R)
• M8: 2,927,331 km (0.106 R)
• M9: 3,714,964 km (0.041 R)
• M10: 4,764,842 km (0.088 R)
• M11: 5,064,038 km (0.06 R)
• M12: 6,670,120 km (0.103 R)
• M13: 10,235,187 km (0.072 R)
• M14: 12,451,031 km (0.059 R)
• M15: 12,701,458 km (0.055 R)
• M16: 13,147,708 km (0.057 R)
• M17: 15,108,936 km (0.116 R)
• M18: 17,179,670 km (0.086 R)
• M19: 18,444,221 km (0.104 R)
• M20: 18,851,725 km (0.046 R)
• M21: 21,068,616 km (0.104 R)
• M22: 21,513,969 km (0.115 R)
• M23: 22,056,560 km (0.054 R)
• M24: 25,006,930 km (0.104 R)
• M25: 25,405,907 km (0.041 R)
• M26: 27,464,224 km (0.095 R)
• M27: 28,425,839 km (0.115 R)
• M28: 30,190,346 km (0.096 R)
• M29: 30,529,036 km (0.097 R)
• M30: 32,378,963 km (0.114 R)
• M31: 33,693,180 km (0.075 R)
• M32: 38,772,327 km (0.112 R)
• M33: 41,772,064 km (0.091 R)
• M34: 42,052,261 km (0.112 R)
• M35: 45,069,949 km (0.074 R)
• M36: 46,256,559 km (0.099 R)
• M37: 51,693,544 km (0.067 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: 415 - 11,015 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit