🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

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: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.41 AU - 0.61 AU

Year: 239 Days

Day: 18.6 Hours

Environment

Temp: -114 °C

Axial Tilt: 10.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 0.83 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322.9

Radius: 14.6

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.09 AU - 1.19 AU

Year: 798 Days

Day: 11.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,141,066 km

• M1: 182,210 km (0.041 R)
• M2: 898,934 km (0.04 R)
• M3: 1,390,063 km (0.093 R)
• M4: 2,005,808 km (0.087 R)
• M5: 2,769,655 km (0.067 R)
• M6: 3,415,020 km (0.089 R)
• M7: 3,922,606 km (0.033 R)
• M8: 4,556,153 km (0.06 R)
• M9: 5,409,459 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904

Radius: 12.7

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 2.85 AU - 3.09 AU

Year: 3358 Days

Day: 9.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 69.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 45,141,066 km

• M1: 158,125 km (0.104 R)
• M2: 591,360 km (0.057 R)
• M3: 1,089,970 km (0.052 R)
• M4: 1,910,365 km (0.113 R)
• M5: 2,322,806 km (0.078 R)
• M6: 3,164,145 km (0.107 R)
• M7: 5,263,302 km (0.06 R)
• M8: 5,972,246 km (0.037 R)
• M9: 6,712,905 km (0.088 R)
• M10: 8,741,752 km (0.045 R)
• M11: 9,816,762 km (0.084 R)
• M12: 10,386,281 km (0.108 R)
• M13: 11,064,259 km (0.065 R)
• M14: 13,081,586 km (0.112 R)
• M15: 16,608,056 km (0.076 R)
• M16: 19,431,118 km (0.108 R)
• M17: 22,004,949 km (0.11 R)
• M18: 24,133,727 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.2

Radius: 12

Gravity: 5.83 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 2.74 AU - 4.14 AU

Year: 4185 Days

Day: 13.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 45,141,066 km

• M1: 149,299 km (0.069 R)
• M2: 698,921 km (0.117 R)
• M3: 1,405,472 km (0.102 R)
• M4: 2,175,901 km (0.109 R)
• M5: 2,717,296 km (0.054 R)
• M6: 3,229,519 km (0.118 R)
• M7: 3,676,667 km (0.045 R)
• M8: 4,449,489 km (0.108 R)
• M9: 5,808,586 km (0.071 R)
• M10: 6,195,745 km (0.117 R)
• M11: 6,695,851 km (0.071 R)
• M12: 7,222,884 km (0.09 R)
• M13: 8,065,270 km (0.103 R)
• M14: 10,457,938 km (0.071 R)
• M15: 11,351,337 km (0.067 R)
• M16: 15,610,239 km (0.115 R)
• M17: 16,012,058 km (0.092 R)
• M18: 17,442,513 km (0.053 R)
• M19: 18,634,060 km (0.051 R)
• M20: 23,871,183 km (0.034 R)
• M21: 26,865,833 km (0.08 R)
• M22: 27,277,825 km (0.038 R)
• M23: 28,029,704 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 108.5

Radius: 14.5

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 3.22 AU - 3.72 AU

Year: 4240 Days

Day: 13 Hours

Environment

Temp: -214 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 45,141,066 km

• M1: 180,415 km (0.1 R)
• M2: 699,819 km (0.11 R)
• M3: 2,801,819 km (0.12 R)
• M4: 6,015,181 km (0.108 R)
• M5: 7,582,667 km (0.104 R)
• M6: 8,239,701 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712.4

Radius: 10.2

Gravity: 6.85 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 4.65 AU - 5.49 AU

Year: 7489 Days

Day: 5.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 45,141,066 km

• M1: 126,859 km (0.111 R)
• M2: 593,754 km (0.086 R)
• M3: 921,373 km (0.081 R)
• M4: 1,304,643 km (0.088 R)
• M5: 2,283,013 km (0.111 R)
• M6: 3,278,886 km (0.039 R)
• M7: 3,597,679 km (0.057 R)
• M8: 4,114,989 km (0.086 R)
• M9: 5,936,791 km (0.073 R)
• M10: 6,951,663 km (0.071 R)
• M11: 7,756,051 km (0.099 R)
• M12: 9,099,590 km (0.091 R)
• M13: 10,300,561 km (0.117 R)
• M14: 11,141,152 km (0.058 R)
• M15: 11,814,342 km (0.081 R)
• M16: 12,134,033 km (0.046 R)
• M17: 16,901,717 km (0.03 R)
• M18: 18,281,757 km (0.118 R)
• M19: 19,218,090 km (0.058 R)
• M20: 20,337,980 km (0.095 R)
• M21: 22,789,291 km (0.092 R)
• M22: 26,597,454 km (0.1 R)
• M23: 29,522,093 km (0.118 R)
• M24: 32,759,241 km (0.118 R)
• M25: 34,789,284 km (0.046 R)
• M26: 36,225,723 km (0.112 R)
• M27: 36,562,767 km (0.116 R)
• M28: 37,586,465 km (0.037 R)
• M29: 38,512,177 km (0.093 R)
• M30: 39,098,600 km (0.067 R)
• M31: 39,453,147 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.7

Radius: 10.4

Gravity: 7.26 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 4.64 AU - 5.84 AU

Year: 7869 Days

Day: 9.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 45,141,066 km

• M1: 129,402 km (0.045 R)
• M2: 648,058 km (0.096 R)
• M3: 1,180,028 km (0.113 R)
• M4: 1,957,339 km (0.073 R)
• M5: 2,432,162 km (0.025 R)
• M6: 2,858,067 km (0.1 R)
• M7: 4,388,603 km (0.111 R)
• M8: 4,815,107 km (0.112 R)
• M9: 5,176,236 km (0.053 R)
• M10: 7,069,247 km (0.116 R)
• M11: 8,025,178 km (0.081 R)
• M12: 8,448,091 km (0.103 R)
• M13: 9,110,361 km (0.115 R)
• M14: 9,477,624 km (0.078 R)
• M15: 11,463,984 km (0.07 R)
• M16: 12,667,798 km (0.104 R)
• M17: 14,319,209 km (0.079 R)
• M18: 14,753,492 km (0.031 R)
• M19: 15,648,685 km (0.117 R)
• M20: 16,109,596 km (0.047 R)
• M21: 17,336,598 km (0.091 R)
• M22: 18,919,493 km (0.089 R)
• M23: 19,518,333 km (0.082 R)
• M24: 23,125,288 km (0.084 R)
• M25: 25,762,698 km (0.104 R)
• M26: 26,498,570 km (0.061 R)
• M27: 27,059,562 km (0.073 R)
• M28: 27,437,895 km (0.119 R)
• M29: 28,986,981 km (0.119 R)
• M30: 30,901,235 km (0.065 R)
• M31: 34,868,421 km (0.088 R)
• M32: 37,148,143 km (0.056 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 948

Radius: 3.4

Gravity: 82.01 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 9.23 AU - 10.13 AU

Year: 19757 Days

Day: 23.2 Hours

Environment

Temp: -237 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 45,141,066 km

• M1: 42,336 km (0.086 R)
• M2: 170,093 km (0.113 R)
• M3: 349,311 km (0.114 R)
• M4: 524,341 km (0.116 R)
• M5: 637,287 km (0.102 R)
• M6: 809,773 km (0.076 R)
• M7: 949,647 km (0.094 R)
• M8: 1,065,137 km (0.047 R)
• M9: 1,340,098 km (0.104 R)
• M10: 2,092,425 km (0.083 R)
• M11: 2,669,724 km (0.08 R)
• M12: 3,615,631 km (0.079 R)
• M13: 3,835,091 km (0.059 R)
• M14: 4,030,017 km (0.116 R)
• M15: 4,546,578 km (0.029 R)
• M16: 4,990,585 km (0.088 R)
• M17: 5,262,554 km (0.07 R)
• M18: 8,994,572 km (0.069 R)
• M19: 9,632,457 km (0.095 R)
• M20: 10,997,687 km (0.047 R)
• M21: 13,279,055 km (0.095 R)
• M22: 23,556,728 km (0.089 R)
• M23: 24,319,976 km (0.032 R)
• M24: 24,652,084 km (0.094 R)
• M25: 32,476,052 km (0.091 R)
• M26: 32,878,620 km (0.115 R)
• M27: 39,781,066 km (0.082 R)
• M28: 39,934,404 km (0.116 R)
• M29: 45,716,660 km (0.052 R)
• M30: 48,456,396 km (0.073 R)
• M31: 50,581,733 km (0.082 R)
• M32: 52,583,652 km (0.113 R)
• M33: 53,138,660 km (0.116 R)
• M34: 60,510,394 km (0.062 R)
• M35: 61,733,357 km (0.098 R)
• M36: 63,389,405 km (0.11 R)
• M37: 63,598,393 km (0.109 R)
• M38: 65,714,455 km (0.066 R)
• M39: 72,571,573 km (0.083 R)
• M40: 73,029,641 km (0.095 R)
• M41: 75,114,886 km (0.097 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 103.8

Radius: 7.8

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 10.83 AU - 10.89 AU

Year: 23478 Days

Day: 18.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 45,141,066 km

• M1: 96,939 km (0.066 R)
• M2: 373,097 km (0.117 R)
• M3: 735,423 km (0.116 R)
• M4: 1,195,586 km (0.063 R)
• M5: 1,657,544 km (0.105 R)
• M6: 2,078,363 km (0.117 R)
• M7: 2,728,067 km (0.112 R)
• M8: 3,530,510 km (0.108 R)
• M9: 5,235,776 km (0.071 R)
• M10: 5,494,281 km (0.088 R)
• M11: 10,728,710 km (0.042 R)
• M12: 13,705,409 km (0.115 R)
• M13: 14,575,021 km (0.056 R)
• M14: 16,700,358 km (0.075 R)
• M15: 19,636,964 km (0.05 R)
• M16: 20,184,194 km (0.096 R)
• M17: 20,501,341 km (0.107 R)
• M18: 24,481,243 km (0.098 R)
• M19: 24,932,879 km (0.114 R)
• M20: 26,132,953 km (0.063 R)
• M21: 27,081,852 km (0.092 R)
• M22: 29,250,124 km (0.069 R)
• M23: 33,929,096 km (0.1 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: 194 - 19,458 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit