🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.32

Radius: 1.8

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.68 AU - 0.78 AU

Year: 235 Days

Day: 20.1 Hours

Environment

Temp: 99 °C

Axial Tilt: 35.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.91 AU - 0.95 AU

Year: 338 Days

Day: 20.6 Hours

Environment

Temp: 36 °C

Axial Tilt: 31.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.7

Radius: 0.87

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 2.52 AU - 2.92 AU

Year: 1690 Days

Day: 38.1 Hours

Environment

Temp: -96 °C

Axial Tilt: 39.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,562,205 km

• M1: 727,046 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 229.4

Radius: 11.7

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 3.54 AU - 5.38 AU

Year: 3548 Days

Day: 13.2 Hours

Environment

Temp: -146 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 81,562,205 km

• M1: 146,157 km (0.091 R)
• M2: 677,379 km (0.114 R)
• M3: 1,344,735 km (0.096 R)
• M4: 1,765,704 km (0.08 R)
• M5: 2,212,702 km (0.117 R)
• M6: 2,764,120 km (0.068 R)
• M7: 4,603,874 km (0.098 R)
• M8: 5,075,108 km (0.105 R)
• M9: 6,500,027 km (0.115 R)
• M10: 6,928,925 km (0.111 R)
• M11: 7,813,946 km (0.101 R)
• M12: 8,423,856 km (0.103 R)
• M13: 8,967,046 km (0.106 R)
• M14: 10,701,334 km (0.1 R)
• M15: 11,339,070 km (0.1 R)
• M16: 12,649,248 km (0.078 R)
• M17: 13,277,110 km (0.1 R)
• M18: 15,332,884 km (0.084 R)
• M19: 15,854,233 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247.2

Radius: 13.7

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 7.78 AU - 9.44 AU

Year: 9518 Days

Day: 5.9 Hours

Environment

Temp: -164 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 81,562,205 km

• M1: 170,542 km (0.06 R)
• M2: 613,202 km (0.112 R)
• M3: 1,075,160 km (0.049 R)
• M4: 1,944,623 km (0.037 R)
• M5: 2,639,056 km (0.072 R)
• M6: 3,223,984 km (0.103 R)
• M7: 4,350,904 km (0.105 R)
• M8: 5,060,896 km (0.119 R)
• M9: 5,635,651 km (0.086 R)
• M10: 6,951,364 km (0.064 R)
• M11: 8,502,096 km (0.033 R)
• M12: 9,233,330 km (0.089 R)
• M13: 10,050,284 km (0.079 R)
• M14: 11,779,187 km (0.12 R)
• M15: 16,675,824 km (0.046 R)
• M16: 17,563,239 km (0.069 R)
• M17: 18,216,234 km (0.068 R)
• M18: 19,021,220 km (0.05 R)
• M19: 19,919,854 km (0.116 R)
• M20: 22,252,384 km (0.12 R)
• M21: 23,641,849 km (0.116 R)
• M22: 24,599,724 km (0.043 R)
• M23: 29,781,795 km (0.086 R)
• M24: 30,243,902 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 183.7

Radius: 12.5

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 8.63 AU - 11.39 AU

Year: 11931 Days

Day: 12 Hours

Environment

Temp: -186 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 81,562,205 km

• M1: 156,629 km (0.079 R)
• M2: 715,975 km (0.089 R)
• M3: 1,995,486 km (0.075 R)
• M4: 3,568,956 km (0.077 R)
• M5: 5,338,250 km (0.048 R)
• M6: 9,838,454 km (0.106 R)
• M7: 11,330,543 km (0.09 R)
• M8: 12,079,729 km (0.099 R)
• M9: 13,566,433 km (0.053 R)
• M10: 14,994,045 km (0.055 R)
• M11: 18,551,931 km (0.069 R)
• M12: 28,723,988 km (0.11 R)
• M13: 30,400,382 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 543.5

Radius: 4.3

Gravity: 29.39 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 14.24 AU - 15.9 AU

Year: 22039 Days

Day: 17 Hours

Environment

Temp: -203 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 81,562,205 km

• M1: 55,052 km (0.119 R)
• M2: 301,889 km (0.098 R)
• M3: 585,077 km (0.107 R)
• M4: 789,428 km (0.102 R)
• M5: 2,752,302 km (0.054 R)
• M6: 3,110,439 km (0.118 R)
• M7: 3,499,094 km (0.064 R)
• M8: 4,339,086 km (0.111 R)
• M9: 4,646,659 km (0.104 R)
• M10: 5,079,297 km (0.11 R)
• M11: 5,267,191 km (0.077 R)
• M12: 6,107,931 km (0.066 R)
• M13: 6,494,343 km (0.041 R)
• M14: 7,363,207 km (0.072 R)
• M15: 9,384,424 km (0.104 R)
• M16: 12,076,737 km (0.094 R)
• M17: 12,547,821 km (0.116 R)
• M18: 13,171,195 km (0.086 R)
• M19: 13,526,340 km (0.034 R)
• M20: 13,887,918 km (0.054 R)
• M21: 14,934,355 km (0.118 R)
• M22: 16,519,046 km (0.065 R)
• M23: 16,848,909 km (0.052 R)
• M24: 19,555,882 km (0.113 R)
• M25: 23,149,373 km (0.095 R)
• M26: 23,355,369 km (0.096 R)
• M27: 28,435,264 km (0.107 R)
• M28: 29,028,120 km (0.112 R)
• M29: 31,230,949 km (0.086 R)
• M30: 32,116,868 km (0.07 R)
• M31: 33,280,290 km (0.099 R)
• M32: 34,471,688 km (0.083 R)
• M33: 34,875,004 km (0.083 R)
• M34: 36,519,832 km (0.105 R)
• M35: 36,659,257 km (0.108 R)
• M36: 37,220,249 km (0.095 R)
• M37: 46,826,826 km (0.085 R)
• M38: 47,986,359 km (0.09 R)
• M39: 48,489,158 km (0.061 R)
• M40: 55,165,262 km (0.058 R)
• M41: 56,458,386 km (0.06 R)
• M42: 61,438,050 km (0.059 R)
• M43: 67,119,628 km (0.096 R)
• M44: 70,734,511 km (0.119 R)
• M45: 72,699,778 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 708.5

Radius: 3.7

Gravity: 51.75 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 13.07 AU - 18.55 AU

Year: 23682 Days

Day: 22.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 81,562,205 km

• M1: 46,226 km (0.099 R)
• M2: 183,856 km (0.099 R)
• M3: 360,381 km (0.06 R)
• M4: 734,675 km (0.034 R)
• M5: 1,163,123 km (0.044 R)
• M6: 1,558,959 km (0.087 R)
• M7: 4,231,825 km (0.104 R)
• M8: 4,549,122 km (0.1 R)
• M9: 6,423,433 km (0.108 R)
• M10: 6,700,788 km (0.096 R)
• M11: 7,734,210 km (0.067 R)
• M12: 7,942,450 km (0.114 R)
• M13: 8,261,842 km (0.119 R)
• M14: 13,006,936 km (0.034 R)
• M15: 14,367,529 km (0.115 R)
• M16: 14,603,146 km (0.095 R)
• M17: 19,874,227 km (0.117 R)
• M18: 20,462,146 km (0.046 R)
• M19: 25,935,633 km (0.099 R)
• M20: 26,284,944 km (0.055 R)
• M21: 29,445,050 km (0.118 R)
• M22: 34,085,875 km (0.049 R)
• M23: 34,927,512 km (0.082 R)
• M24: 37,535,452 km (0.093 R)
• M25: 39,805,301 km (0.111 R)
• M26: 41,845,217 km (0.104 R)
• M27: 42,486,693 km (0.09 R)
• M28: 50,521,146 km (0.1 R)
• M29: 52,723,376 km (0.072 R)
• M30: 52,909,625 km (0.113 R)
• M31: 58,109,049 km (0.119 R)
• M32: 58,507,129 km (0.072 R)
• M33: 60,117,849 km (0.047 R)
• M34: 67,513,369 km (0.078 R)
• M35: 74,550,004 km (0.086 R)
• M36: 80,568,476 km (0.074 R)
• M37: 84,585,478 km (0.083 R)
• M38: 86,125,738 km (0.067 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 411.3

Radius: 6.2

Gravity: 10.7 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 17.02 AU - 20.52 AU

Year: 30635 Days

Day: 22.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 81,562,205 km

• M1: 77,193 km (0.103 R)
• M2: 400,623 km (0.106 R)
• M3: 877,691 km (0.1 R)
• M4: 1,717,533 km (0.109 R)
• M5: 4,535,359 km (0.102 R)
• M6: 7,287,211 km (0.065 R)
• M7: 7,842,818 km (0.078 R)
• M8: 14,178,437 km (0.03 R)
• M9: 15,204,080 km (0.109 R)
• M10: 18,119,145 km (0.117 R)
• M11: 22,522,109 km (0.042 R)
• M12: 26,637,546 km (0.12 R)
• M13: 31,753,195 km (0.106 R)
• M14: 40,830,644 km (0.108 R)
• M15: 42,414,138 km (0.09 R)
• M16: 45,703,197 km (0.096 R)
• M17: 69,290,443 km (0.032 R)
• M18: 72,224,206 km (0.069 R)
• M19: 76,897,494 km (0.115 R)

Planet 10 - Ice Giant

Semi-Major Axis: 18.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 355.6

Radius: 4.1

Gravity: 21.15 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 14.21 AU - 23.47 AU

Year: 30807 Days

Day: 18.9 Hours

Environment

Temp: -196 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 81,562,205 km

• M1: 53,406 km (0.05 R)
• M2: 284,386 km (0.105 R)
• M3: 444,455 km (0.04 R)
• M4: 4,281,042 km (0.054 R)
• M5: 5,710,001 km (0.076 R)
• M6: 12,049,211 km (0.098 R)
• M7: 14,597,012 km (0.081 R)
• M8: 16,706,641 km (0.101 R)
• M9: 24,347,652 km (0.077 R)
• M10: 24,566,514 km (0.081 R)
• M11: 25,231,027 km (0.099 R)
• M12: 34,027,532 km (0.052 R)
• M13: 35,550,737 km (0.098 R)
• M14: 45,323,368 km (0.071 R)
• M15: 53,541,527 km (0.105 R)
• M16: 58,880,376 km (0.077 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 173 - 14,279 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit