🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.37

Radius: 0.67

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.48 AU - 0.66 AU

Year: 282 Days

Day: 23 Hours

Environment

Temp: -126 °C

Axial Tilt: 41.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,271,406 km

• M1: 15,558 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 302.2

Radius: 9.1

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.89 AU - 1.07 AU

Year: 636 Days

Day: 14.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 72,271,406 km

• M1: 113,096 km (0.11 R)
• M2: 431,141 km (0.105 R)
• M3: 736,022 km (0.077 R)
• M4: 1,104,032 km (0.078 R)
• M5: 1,401,433 km (0.093 R)
• M6: 1,828,535 km (0.041 R)
• M7: 2,137,305 km (0.065 R)
• M8: 2,686,628 km (0.082 R)
• M9: 3,000,634 km (0.066 R)
• M10: 4,202,055 km (0.118 R)
• M11: 4,583,380 km (0.07 R)
• M12: 5,112,058 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 664

Radius: 14.7

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.96 AU - 1.22 AU

Year: 747 Days

Day: 6.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,271,406 km

• M1: 182,809 km (0.048 R)
• M2: 775,067 km (0.078 R)
• M3: 1,306,588 km (0.119 R)
• M4: 1,977,833 km (0.077 R)
• M5: 3,078,126 km (0.12 R)
• M6: 3,640,015 km (0.063 R)
• M7: 4,132,492 km (0.112 R)
• M8: 4,669,698 km (0.112 R)
• M9: 6,180,786 km (0.04 R)
• M10: 6,779,476 km (0.095 R)
• M11: 7,785,372 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 476.4

Radius: 13.3

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 2.47 AU - 3.25 AU

Year: 3173 Days

Day: 8.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,271,406 km

• M1: 165,455 km (0.083 R)
• M2: 648,208 km (0.093 R)
• M3: 4,127,854 km (0.064 R)
• M4: 4,925,360 km (0.105 R)
• M5: 8,071,852 km (0.075 R)
• M6: 10,120,745 km (0.116 R)
• M7: 11,407,586 km (0.105 R)
• M8: 12,977,166 km (0.086 R)
• M9: 15,771,206 km (0.106 R)
• M10: 16,961,855 km (0.106 R)
• M11: 18,323,196 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 784.2

Radius: 10.8

Gravity: 6.72 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 3.61 AU - 3.71 AU

Year: 4593 Days

Day: 13.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 72,271,406 km

• M1: 134,339 km (0.104 R)
• M2: 505,342 km (0.112 R)
• M3: 1,323,044 km (0.105 R)
• M4: 1,803,851 km (0.107 R)
• M5: 2,152,564 km (0.073 R)
• M6: 3,102,959 km (0.067 R)
• M7: 4,508,581 km (0.084 R)
• M8: 5,608,873 km (0.043 R)
• M9: 6,083,697 km (0.065 R)
• M10: 6,489,256 km (0.113 R)
• M11: 7,924,498 km (0.032 R)
• M12: 8,600,382 km (0.085 R)
• M13: 9,896,647 km (0.095 R)
• M14: 11,133,971 km (0.109 R)
• M15: 11,885,850 km (0.05 R)
• M16: 12,822,333 km (0.065 R)
• M17: 14,020,761 km (0.086 R)
• M18: 14,675,102 km (0.048 R)
• M19: 15,810,550 km (0.087 R)
• M20: 16,162,404 km (0.11 R)
• M21: 16,881,671 km (0.076 R)
• M22: 19,703,236 km (0.071 R)
• M23: 21,439,020 km (0.114 R)
• M24: 22,676,344 km (0.066 R)
• M25: 27,847,793 km (0.119 R)
• M26: 29,407,949 km (0.11 R)
• M27: 29,851,507 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.1

Radius: 9.9

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 3.03 AU - 4.71 AU

Year: 4994 Days

Day: 10.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 72,271,406 km

• M1: 123,119 km (0.074 R)
• M2: 608,714 km (0.119 R)
• M3: 1,034,469 km (0.088 R)
• M4: 1,437,935 km (0.115 R)
• M5: 2,310,838 km (0.102 R)
• M6: 2,768,757 km (0.098 R)
• M7: 3,339,922 km (0.11 R)
• M8: 3,847,956 km (0.039 R)
• M9: 4,278,200 km (0.068 R)
• M10: 4,740,308 km (0.1 R)
• M11: 5,975,687 km (0.085 R)
• M12: 8,313,453 km (0.094 R)
• M13: 14,556,621 km (0.118 R)
• M14: 15,299,524 km (0.096 R)
• M15: 16,015,649 km (0.092 R)
• M16: 19,105,144 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.7

Radius: 10.6

Gravity: 8.19 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 4.66 AU - 4.74 AU

Year: 6684 Days

Day: 12.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 72,271,406 km

• M1: 131,796 km (0.083 R)
• M2: 890,257 km (0.118 R)
• M3: 1,889,272 km (0.09 R)
• M4: 2,970,266 km (0.118 R)
• M5: 4,423,011 km (0.074 R)
• M6: 4,785,785 km (0.094 R)
• M7: 5,198,825 km (0.094 R)
• M8: 5,571,773 km (0.109 R)
• M9: 8,034,303 km (0.109 R)
• M10: 8,407,251 km (0.087 R)
• M11: 10,546,799 km (0.118 R)
• M12: 11,506,769 km (0.093 R)
• M13: 12,414,230 km (0.057 R)
• M14: 12,969,836 km (0.096 R)
• M15: 14,860,155 km (0.12 R)
• M16: 16,860,278 km (0.109 R)
• M17: 17,404,216 km (0.116 R)
• M18: 18,030,134 km (0.086 R)
• M19: 20,454,367 km (0.08 R)
• M20: 20,917,373 km (0.076 R)
• M21: 21,466,397 km (0.108 R)
• M22: 25,760,903 km (0.082 R)
• M23: 27,404,086 km (0.076 R)
• M24: 28,061,569 km (0.089 R)
• M25: 33,920,569 km (0.034 R)
• M26: 34,460,917 km (0.095 R)
• M27: 35,558,815 km (0.095 R)
• M28: 36,228,565 km (0.09 R)
• M29: 37,939,965 km (0.118 R)
• M30: 38,874,503 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 407.3

Radius: 3.5

Gravity: 33.25 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 6.26 AU - 6.84 AU

Year: 10997 Days

Day: 16.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 72,271,406 km

• M1: 45,328 km (0.108 R)
• M2: 174,282 km (0.101 R)
• M3: 452,234 km (0.095 R)
• M4: 565,480 km (0.104 R)
• M5: 738,265 km (0.103 R)
• M6: 1,026,241 km (0.091 R)
• M7: 1,571,226 km (0.117 R)
• M8: 3,021,877 km (0.094 R)
• M9: 3,454,364 km (0.112 R)
• M10: 3,823,871 km (0.107 R)
• M11: 5,059,699 km (0.12 R)
• M12: 5,278,262 km (0.095 R)
• M13: 6,006,205 km (0.045 R)
• M14: 7,180,847 km (0.11 R)
• M15: 7,863,313 km (0.102 R)
• M16: 10,119,847 km (0.049 R)
• M17: 10,617,858 km (0.109 R)
• M18: 12,773,414 km (0.108 R)
• M19: 14,632,168 km (0.083 R)
• M20: 15,011,548 km (0.079 R)
• M21: 16,055,591 km (0.113 R)
• M22: 22,255,974 km (0.115 R)
• M23: 25,288,772 km (0.084 R)
• M24: 25,560,891 km (0.081 R)
• M25: 26,482,114 km (0.065 R)
• M26: 27,425,030 km (0.061 R)
• M27: 30,082,636 km (0.052 R)
• M28: 31,005,355 km (0.078 R)
• M29: 34,772,828 km (0.098 R)
• M30: 37,056,889 km (0.108 R)
• M31: 41,166,043 km (0.092 R)
• M32: 41,291,256 km (0.112 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 716.9

Radius: 5

Gravity: 28.68 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 8.46 AU - 9.8 AU

Year: 18097 Days

Day: 17.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 72,271,406 km

• M1: 81,980 km (0.098 R)
• M2: 315,801 km (0.086 R)
• M3: 541,993 km (0.065 R)
• M4: 730,935 km (0.119 R)
• M5: 1,664,426 km (0.081 R)
• M6: 2,450,563 km (0.086 R)
• M7: 3,053,143 km (0.067 R)
• M8: 3,292,799 km (0.099 R)
• M9: 5,185,960 km (0.096 R)
• M10: 6,171,361 km (0.099 R)
• M11: 6,598,463 km (0.067 R)
• M12: 8,820,290 km (0.082 R)
• M13: 9,528,487 km (0.037 R)
• M14: 14,892,468 km (0.089 R)
• M15: 15,349,490 km (0.03 R)
• M16: 15,815,936 km (0.117 R)
• M17: 18,377,051 km (0.072 R)
• M18: 19,619,312 km (0.088 R)
• M19: 25,580,488 km (0.029 R)
• M20: 26,345,980 km (0.119 R)
• M21: 26,902,035 km (0.063 R)
• M22: 28,152,823 km (0.096 R)
• M23: 41,052,797 km (0.045 R)
• M24: 44,564,308 km (0.074 R)
• M25: 47,448,405 km (0.104 R)
• M26: 48,769,205 km (0.101 R)
• M27: 52,878,359 km (0.093 R)
• M28: 54,476,962 km (0.033 R)
• M29: 58,708,039 km (0.097 R)
• M30: 60,229,599 km (0.099 R)
• M31: 63,153,040 km (0.058 R)
• M32: 63,549,774 km (0.115 R)
• M33: 63,748,889 km (0.086 R)
• M34: 64,148,165 km (0.093 R)
• M35: 66,989,926 km (0.048 R)
• M36: 70,979,403 km (0.095 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 167 - 16,021 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit