🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.11

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.43 AU - 0.69 AU

Year: 275 Days

Day: 20.7 Hours

Environment

Temp: -126 °C

Axial Tilt: 22.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 454.9

Radius: 12.4

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1 AU - 1.02 AU

Year: 666 Days

Day: 14.1 Hours

Environment

Temp: -162 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 38,534,527 km

• M1: 154,235 km (0.105 R)
• M2: 770,279 km (0.07 R)
• M3: 1,327,382 km (0.092 R)
• M4: 1,857,557 km (0.052 R)
• M5: 2,370,079 km (0.102 R)
• M6: 3,021,727 km (0.118 R)
• M7: 4,220,754 km (0.095 R)
• M8: 5,198,526 km (0.074 R)
• M9: 5,661,531 km (0.086 R)
• M10: 6,552,985 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846.8

Radius: 13.6

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 2.69 AU - 3.19 AU

Year: 3307 Days

Day: 15 Hours

Environment

Temp: -203 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 38,534,527 km

• M1: 169,494 km (0.091 R)
• M2: 671,694 km (0.067 R)
• M3: 1,437,037 km (0.077 R)
• M4: 2,208,065 km (0.112 R)
• M5: 3,259,887 km (0.095 R)
• M6: 3,806,518 km (0.113 R)
• M7: 5,060,447 km (0.069 R)
• M8: 6,817,025 km (0.083 R)
• M9: 8,265,133 km (0.091 R)
• M10: 10,978,988 km (0.033 R)
• M11: 11,807,910 km (0.077 R)
• M12: 12,631,296 km (0.076 R)
• M13: 14,910,121 km (0.058 R)
• M14: 16,480,449 km (0.077 R)
• M15: 17,104,123 km (0.085 R)
• M16: 21,582,784 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 189.2

Radius: 8.4

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 2.68 AU - 3.52 AU

Year: 3581 Days

Day: 8.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 38,534,527 km

• M1: 107,262 km (0.1 R)
• M2: 429,645 km (0.093 R)
• M3: 798,105 km (0.11 R)
• M4: 1,727,855 km (0.088 R)
• M5: 2,070,734 km (0.109 R)
• M6: 2,354,072 km (0.082 R)
• M7: 2,806,456 km (0.065 R)
• M8: 3,332,143 km (0.056 R)
• M9: 4,051,559 km (0.049 R)
• M10: 4,579,340 km (0.119 R)
• M11: 6,262,316 km (0.08 R)
• M12: 7,022,573 km (0.114 R)
• M13: 8,321,980 km (0.069 R)
• M14: 9,438,279 km (0.056 R)
• M15: 10,259,272 km (0.099 R)
• M16: 11,127,239 km (0.082 R)
• M17: 14,820,811 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 949.4

Radius: 13.5

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 3.05 AU - 3.61 AU

Year: 3986 Days

Day: 6.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 38,534,527 km

• M1: 171,738 km (0.072 R)
• M2: 1,240,166 km (0.112 R)
• M3: 2,721,036 km (0.092 R)
• M4: 3,194,064 km (0.04 R)
• M5: 3,852,295 km (0.089 R)
• M6: 5,582,245 km (0.119 R)
• M7: 6,199,485 km (0.108 R)
• M8: 7,606,603 km (0.102 R)
• M9: 8,071,404 km (0.115 R)
• M10: 17,347,519 km (0.119 R)
• M11: 18,409,215 km (0.106 R)
• M12: 19,580,117 km (0.063 R)
• M13: 20,116,276 km (0.092 R)
• M14: 22,214,386 km (0.105 R)
• M15: 26,678,237 km (0.114 R)
• M16: 27,755,043 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.6

Radius: 10.7

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 3.19 AU - 3.77 AU

Year: 4259 Days

Day: 12 Hours

Environment

Temp: -202 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 38,534,527 km

• M1: 133,292 km (0.118 R)
• M2: 539,450 km (0.119 R)
• M3: 896,091 km (0.052 R)
• M4: 1,530,985 km (0.085 R)
• M5: 2,093,173 km (0.047 R)
• M6: 2,505,914 km (0.052 R)
• M7: 4,803,139 km (0.089 R)
• M8: 5,606,330 km (0.036 R)
• M9: 6,294,330 km (0.084 R)
• M10: 6,976,198 km (0.101 R)
• M11: 7,905,200 km (0.096 R)
• M12: 11,616,574 km (0.034 R)
• M13: 12,055,344 km (0.105 R)
• M14: 13,824,788 km (0.086 R)
• M15: 17,073,306 km (0.078 R)
• M16: 17,469,441 km (0.101 R)
• M17: 19,420,347 km (0.071 R)
• M18: 20,863,069 km (0.075 R)
• M19: 22,919,142 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.1

Radius: 15

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 3 AU - 4.24 AU

Year: 4518 Days

Day: 14.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 38,534,527 km

• M1: 186,698 km (0.053 R)
• M2: 693,386 km (0.073 R)
• M3: 1,180,776 km (0.11 R)
• M4: 1,811,181 km (0.118 R)
• M5: 2,299,618 km (0.054 R)
• M6: 3,266,320 km (0.069 R)
• M7: 4,263,390 km (0.108 R)
• M8: 5,119,090 km (0.052 R)
• M9: 6,524,861 km (0.113 R)
• M10: 7,366,798 km (0.079 R)
• M11: 8,001,990 km (0.046 R)
• M12: 9,889,766 km (0.033 R)
• M13: 10,580,609 km (0.094 R)
• M14: 12,150,339 km (0.112 R)
• M15: 13,426,110 km (0.057 R)
• M16: 14,427,368 km (0.115 R)
• M17: 16,635,433 km (0.066 R)
• M18: 20,781,239 km (0.096 R)
• M19: 21,848,470 km (0.11 R)
• M20: 24,824,271 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 719

Radius: 7.1

Gravity: 14.26 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 6.11 AU - 7.93 AU

Year: 12202 Days

Day: 15.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 38,534,527 km

• M1: 88,412 km (0.053 R)
• M2: 333,304 km (0.045 R)
• M3: 640,279 km (0.101 R)
• M4: 875,297 km (0.118 R)
• M5: 1,243,308 km (0.094 R)
• M6: 1,514,080 km (0.092 R)
• M7: 1,807,591 km (0.08 R)
• M8: 2,788,804 km (0.081 R)
• M9: 3,832,398 km (0.104 R)
• M10: 4,596,843 km (0.07 R)
• M11: 5,744,409 km (0.09 R)
• M12: 6,040,014 km (0.09 R)
• M13: 6,384,837 km (0.066 R)
• M14: 6,783,216 km (0.046 R)
• M15: 7,030,202 km (0.083 R)
• M16: 8,881,775 km (0.083 R)
• M17: 11,206,526 km (0.091 R)
• M18: 11,904,849 km (0.07 R)
• M19: 16,420,012 km (0.089 R)
• M20: 21,339,089 km (0.058 R)
• M21: 22,319,853 km (0.047 R)
• M22: 22,592,420 km (0.078 R)
• M23: 24,179,205 km (0.058 R)
• M24: 25,244,790 km (0.115 R)
• M25: 28,309,452 km (0.108 R)
• M26: 31,385,633 km (0.078 R)
• M27: 34,073,458 km (0.118 R)
• M28: 36,406,587 km (0.034 R)
• M29: 41,800,039 km (0.055 R)
• M30: 43,332,669 km (0.083 R)
• M31: 44,327,345 km (0.093 R)
• M32: 45,482,540 km (0.111 R)
• M33: 46,954,732 km (0.111 R)
• M34: 49,222,038 km (0.104 R)
• M35: 54,137,225 km (0.07 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 672.7

Radius: 3

Gravity: 74.74 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 8.02 AU - 8.68 AU

Year: 15828 Days

Day: 21.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 38,534,527 km

• M1: 37,848 km (0.094 R)
• M2: 154,684 km (0.06 R)
• M3: 343,926 km (0.108 R)
• M4: 440,117 km (0.103 R)
• M5: 627,713 km (0.034 R)
• M6: 1,000,062 km (0.088 R)
• M7: 1,664,127 km (0.046 R)
• M8: 1,945,371 km (0.117 R)
• M9: 3,105,203 km (0.088 R)
• M10: 4,693,184 km (0.053 R)
• M11: 5,813,523 km (0.1 R)
• M12: 10,622,047 km (0.105 R)
• M13: 14,358,703 km (0.111 R)
• M14: 17,634,597 km (0.113 R)
• M15: 18,630,320 km (0.109 R)
• M16: 22,030,381 km (0.032 R)
• M17: 26,564,094 km (0.044 R)
• M18: 29,908,803 km (0.095 R)
• M19: 31,441,433 km (0.091 R)
• M20: 32,166,085 km (0.08 R)
• M21: 39,335,264 km (0.037 R)
• M22: 40,459,343 km (0.118 R)
• M23: 43,066,385 km (0.048 R)
• M24: 47,814,920 km (0.114 R)
• M25: 55,836,807 km (0.102 R)
• M26: 59,979,621 km (0.09 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 98

Radius: 4.3

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 8.07 AU - 10.83 AU

Year: 19057 Days

Day: 17.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 38,534,527 km

• M1: 53,706 km (0.103 R)
• M2: 676,631 km (0.119 R)
• M3: 1,302,698 km (0.115 R)
• M4: 2,115,463 km (0.104 R)
• M5: 3,513,456 km (0.087 R)
• M6: 3,774,653 km (0.11 R)
• M7: 4,256,209 km (0.099 R)
• M8: 4,720,710 km (0.055 R)
• M9: 5,009,285 km (0.094 R)
• M10: 6,561,063 km (0.112 R)
• M11: 6,994,000 km (0.089 R)
• M12: 7,757,398 km (0.071 R)
• M13: 8,323,925 km (0.044 R)
• M14: 8,702,258 km (0.119 R)
• M15: 11,268,160 km (0.095 R)
• M16: 11,888,244 km (0.12 R)
• M17: 12,530,617 km (0.114 R)
• M18: 20,808,316 km (0.065 R)
• M19: 21,115,889 km (0.077 R)
• M20: 21,426,305 km (0.069 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 481 - 19,537 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit