🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.87 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.89

Radius: 1.53

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.48 AU - 2 AU

Year: 807 Days

Day: 30.8 Hours

Environment

Temp: -39 °C

Axial Tilt: 36.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 3.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.19

Radius: 1.77

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 3.16 AU - 4.62 AU

Year: 2697 Days

Day: 20.8 Hours

Environment

Temp: -120 °C

Axial Tilt: 19.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 9.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 422.8

Radius: 10.9

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 7.92 AU - 10.54 AU

Year: 9856 Days

Day: 9.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 91,240,767 km

• M1: 135,685 km (0.118 R)
• M2: 851,810 km (0.077 R)
• M3: 1,455,438 km (0.116 R)
• M4: 1,937,741 km (0.079 R)
• M5: 3,077,527 km (0.11 R)
• M6: 4,344,472 km (0.093 R)
• M7: 5,385,224 km (0.091 R)
• M8: 6,269,348 km (0.072 R)
• M9: 7,793,451 km (0.106 R)
• M10: 9,100,038 km (0.09 R)
• M11: 9,505,449 km (0.071 R)
• M12: 13,716,778 km (0.045 R)
• M13: 14,250,394 km (0.074 R)
• M14: 15,549,651 km (0.1 R)
• M15: 19,621,406 km (0.025 R)
• M16: 29,598,986 km (0.112 R)
• M17: 33,593,099 km (0.117 R)
• M18: 34,672,298 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 9.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 337.7

Radius: 12.1

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 9.7 AU - 10.26 AU

Year: 11081 Days

Day: 7.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 91,240,767 km

• M1: 151,393 km (0.073 R)
• M2: 569,070 km (0.114 R)
• M3: 954,434 km (0.076 R)
• M4: 1,437,336 km (0.113 R)
• M5: 2,473,750 km (0.063 R)
• M6: 2,874,074 km (0.05 R)
• M7: 4,961,563 km (0.087 R)
• M8: 6,336,517 km (0.026 R)
• M9: 8,919,923 km (0.078 R)
• M10: 14,608,980 km (0.056 R)
• M11: 16,125,304 km (0.101 R)
• M12: 18,737,133 km (0.078 R)
• M13: 22,099,645 km (0.109 R)
• M14: 25,134,836 km (0.063 R)
• M15: 30,492,235 km (0.114 R)
• M16: 37,477,707 km (0.106 R)
• M17: 38,405,065 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 11.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488.7

Radius: 12.5

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 10.99 AU - 12.79 AU

Year: 14410 Days

Day: 14.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 91,240,767 km

• M1: 155,731 km (0.103 R)
• M2: 767,886 km (0.083 R)
• M3: 1,377,348 km (0.111 R)
• M4: 1,991,447 km (0.096 R)
• M5: 2,552,140 km (0.031 R)
• M6: 3,642,559 km (0.051 R)
• M7: 4,338,039 km (0.083 R)
• M8: 5,493,533 km (0.111 R)
• M9: 5,921,383 km (0.111 R)
• M10: 6,644,389 km (0.095 R)
• M11: 7,684,693 km (0.116 R)
• M12: 8,975,423 km (0.099 R)
• M13: 10,298,916 km (0.085 R)
• M14: 11,983,238 km (0.082 R)
• M15: 13,266,938 km (0.088 R)
• M16: 17,745,000 km (0.056 R)
• M17: 18,604,739 km (0.085 R)
• M18: 19,410,324 km (0.099 R)
• M19: 20,492,066 km (0.096 R)
• M20: 22,234,283 km (0.071 R)
• M21: 26,713,991 km (0.112 R)
• M22: 28,578,429 km (0.118 R)
• M23: 34,449,846 km (0.091 R)
• M24: 38,955,734 km (0.107 R)
• M25: 50,036,897 km (0.117 R)
• M26: 52,225,664 km (0.03 R)
• M27: 53,022,721 km (0.085 R)

Planet 6 - Ice Giant

Semi-Major Axis: 17.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 929.1

Radius: 4.7

Gravity: 42.06 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 15.18 AU - 20 AU

Year: 25928 Days

Day: 23.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 91,240,767 km

• M1: 59,091 km (0.111 R)
• M2: 567,724 km (0.06 R)
• M3: 723,455 km (0.108 R)
• M4: 871,108 km (0.049 R)
• M5: 1,039,256 km (0.096 R)
• M6: 1,357,301 km (0.065 R)
• M7: 3,246,573 km (0.055 R)
• M8: 3,854,838 km (0.039 R)
• M9: 4,026,875 km (0.118 R)
• M10: 4,688,996 km (0.068 R)
• M11: 4,845,625 km (0.093 R)
• M12: 6,511,846 km (0.094 R)
• M13: 6,905,887 km (0.101 R)
• M14: 7,526,418 km (0.119 R)
• M15: 8,525,882 km (0.098 R)
• M16: 8,818,495 km (0.036 R)
• M17: 9,361,984 km (0.027 R)
• M18: 11,977,703 km (0.099 R)
• M19: 15,470,065 km (0.083 R)
• M20: 15,817,731 km (0.09 R)
• M21: 17,540,500 km (0.103 R)
• M22: 18,985,915 km (0.099 R)
• M23: 21,034,059 km (0.045 R)
• M24: 22,663,629 km (0.079 R)
• M25: 30,024,741 km (0.104 R)
• M26: 37,103,413 km (0.075 R)
• M27: 38,197,423 km (0.117 R)
• M28: 38,513,972 km (0.102 R)
• M29: 45,217,153 km (0.105 R)
• M30: 46,825,480 km (0.051 R)
• M31: 51,492,784 km (0.108 R)
• M32: 52,657,254 km (0.12 R)
• M33: 52,853,077 km (0.12 R)
• M34: 57,077,422 km (0.107 R)
• M35: 58,115,332 km (0.107 R)
• M36: 64,608,478 km (0.079 R)
• M37: 67,797,456 km (0.098 R)
• M38: 80,300,547 km (0.098 R)
• M39: 91,683,299 km (0.097 R)
• M40: 93,105,975 km (0.073 R)
• M41: 93,679,084 km (0.083 R)
• M42: 93,966,611 km (0.083 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 628.2

Radius: 3.4

Gravity: 54.34 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 17.82 AU - 18.7 AU

Year: 27424 Days

Day: 22.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 91,240,767 km

• M1: 122,969 km (0.113 R)
• M2: 247,285 km (0.086 R)
• M3: 761,004 km (0.079 R)
• M4: 1,626,727 km (0.046 R)
• M5: 2,243,519 km (0.077 R)
• M6: 2,892,774 km (0.104 R)
• M7: 4,226,738 km (0.118 R)
• M8: 7,497,396 km (0.058 R)
• M9: 8,919,175 km (0.101 R)
• M10: 9,035,412 km (0.101 R)
• M11: 9,878,097 km (0.082 R)
• M12: 10,837,468 km (0.091 R)
• M13: 11,927,588 km (0.06 R)
• M14: 14,085,986 km (0.102 R)
• M15: 29,227,086 km (0.085 R)
• M16: 29,483,796 km (0.116 R)
• M17: 32,959,852 km (0.069 R)
• M18: 42,658,282 km (0.071 R)
• M19: 47,794,425 km (0.115 R)
• M20: 50,880,181 km (0.091 R)
• M21: 57,847,552 km (0.068 R)
• M22: 69,448,717 km (0.101 R)

Kuiper Belt

Range: 31.2 - 56.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 220 - 15,577 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit