🌌 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: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.84

Radius: 1.28

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.54 AU - 0.56 AU

Year: 268 Days

Day: 26.8 Hours

Environment

Temp: -122 °C

Axial Tilt: 45.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988.8

Radius: 13.2

Gravity: 5.67 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.82 AU - 0.92 AU

Year: 532 Days

Day: 7.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,507,076 km

• M1: 165,156 km (0.037 R)
• M2: 605,722 km (0.032 R)
• M3: 1,153,400 km (0.046 R)
• M4: 1,728,454 km (0.1 R)
• M5: 2,233,795 km (0.098 R)
• M6: 2,726,272 km (0.105 R)
• M7: 3,191,820 km (0.038 R)
• M8: 3,629,095 km (0.087 R)
• M9: 4,121,421 km (0.103 R)
• M10: 4,690,342 km (0.094 R)
• M11: 5,258,964 km (0.079 R)
• M12: 6,159,393 km (0.052 R)
• M13: 7,553,944 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 826.9

Radius: 12.9

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.93 AU - 1.01 AU

Year: 627 Days

Day: 14.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 53,507,076 km

• M1: 160,519 km (0.102 R)
• M2: 563,386 km (0.095 R)
• M3: 1,044,193 km (0.066 R)
• M4: 1,668,615 km (0.076 R)
• M5: 2,181,137 km (0.111 R)
• M6: 2,598,365 km (0.074 R)
• M7: 3,721,546 km (0.038 R)
• M8: 5,429,356 km (0.1 R)
• M9: 6,305,849 km (0.113 R)
• M10: 7,164,691 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 281.9

Radius: 11.1

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.25 AU - 1.55 AU

Year: 1087 Days

Day: 13.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 53,507,076 km

• M1: 138,677 km (0.091 R)
• M2: 604,226 km (0.09 R)
• M3: 1,793,828 km (0.118 R)
• M4: 2,748,412 km (0.116 R)
• M5: 3,398,415 km (0.117 R)
• M6: 3,838,681 km (0.042 R)
• M7: 4,817,949 km (0.116 R)
• M8: 5,898,195 km (0.055 R)
• M9: 6,373,019 km (0.069 R)
• M10: 7,444,588 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610.8

Radius: 8.8

Gravity: 7.89 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.9 AU - 2.2 AU

Year: 1925 Days

Day: 13.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 53,507,076 km

• M1: 109,506 km (0.06 R)
• M2: 434,133 km (0.099 R)
• M3: 934,388 km (0.086 R)
• M4: 2,692,462 km (0.077 R)
• M5: 3,183,143 km (0.054 R)
• M6: 3,697,162 km (0.069 R)
• M7: 4,076,093 km (0.089 R)
• M8: 4,869,859 km (0.09 R)
• M9: 5,303,693 km (0.045 R)
• M10: 5,882,188 km (0.078 R)
• M11: 6,656,956 km (0.079 R)
• M12: 7,028,557 km (0.094 R)
• M13: 7,784,176 km (0.078 R)
• M14: 8,748,783 km (0.057 R)
• M15: 11,431,072 km (0.081 R)
• M16: 12,435,173 km (0.092 R)
• M17: 13,665,466 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631.8

Radius: 13.2

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.91 AU - 2.59 AU

Year: 2214 Days

Day: 9.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 53,507,076 km

• M1: 164,258 km (0.037 R)
• M2: 616,194 km (0.031 R)
• M3: 1,034,768 km (0.091 R)
• M4: 1,746,705 km (0.08 R)
• M5: 2,227,811 km (0.073 R)
• M6: 2,768,458 km (0.074 R)
• M7: 3,296,090 km (0.063 R)
• M8: 3,927,842 km (0.039 R)
• M9: 4,576,797 km (0.12 R)
• M10: 6,582,306 km (0.12 R)
• M11: 7,128,937 km (0.094 R)
• M12: 7,915,074 km (0.085 R)
• M13: 9,660,432 km (0.04 R)
• M14: 11,109,736 km (0.043 R)
• M15: 12,046,369 km (0.051 R)
• M16: 13,077,247 km (0.104 R)
• M17: 13,592,463 km (0.1 R)
• M18: 14,527,000 km (0.101 R)
• M19: 15,314,484 km (0.068 R)
• M20: 15,838,974 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.2

Radius: 12.5

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 3.83 AU - 5.41 AU

Year: 6514 Days

Day: 14.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 53,507,076 km

• M1: 157,676 km (0.105 R)
• M2: 587,770 km (0.096 R)
• M3: 1,643,931 km (0.057 R)
• M4: 2,880,956 km (0.068 R)
• M5: 3,531,108 km (0.105 R)
• M6: 5,562,647 km (0.11 R)
• M7: 6,203,824 km (0.067 R)
• M8: 6,796,830 km (0.108 R)
• M9: 7,359,168 km (0.096 R)
• M10: 7,880,965 km (0.075 R)
• M11: 8,844,077 km (0.108 R)
• M12: 10,051,032 km (0.119 R)
• M13: 11,687,483 km (0.079 R)
• M14: 14,438,588 km (0.062 R)
• M15: 15,707,926 km (0.111 R)
• M16: 16,811,510 km (0.069 R)
• M17: 18,404,577 km (0.111 R)
• M18: 19,302,912 km (0.062 R)
• M19: 21,747,491 km (0.097 R)
• M20: 23,191,260 km (0.119 R)
• M21: 24,012,104 km (0.117 R)
• M22: 25,084,721 km (0.1 R)
• M23: 26,189,052 km (0.078 R)
• M24: 28,157,162 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 115.3

Radius: 7.8

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 4.82 AU - 7.54 AU

Year: 10078 Days

Day: 16 Hours

Environment

Temp: -214 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 53,507,076 km

• M1: 121,174 km (0.086 R)
• M2: 526,285 km (0.113 R)
• M3: 1,354,459 km (0.079 R)
• M4: 1,621,491 km (0.092 R)
• M5: 2,263,865 km (0.062 R)
• M6: 2,848,942 km (0.079 R)
• M7: 3,273,052 km (0.092 R)
• M8: 3,592,443 km (0.097 R)
• M9: 5,057,754 km (0.118 R)
• M10: 5,736,929 km (0.102 R)
• M11: 5,995,883 km (0.101 R)
• M12: 8,176,720 km (0.091 R)
• M13: 9,908,316 km (0.082 R)
• M14: 11,732,811 km (0.101 R)
• M15: 12,579,236 km (0.063 R)
• M16: 15,528,708 km (0.099 R)
• M17: 16,260,690 km (0.119 R)
• M18: 16,548,367 km (0.094 R)
• M19: 17,074,652 km (0.084 R)
• M20: 17,672,296 km (0.112 R)
• M21: 20,071,696 km (0.108 R)
• M22: 20,603,068 km (0.109 R)
• M23: 23,916,660 km (0.088 R)
• M24: 25,583,330 km (0.068 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 288.8

Radius: 5.8

Gravity: 8.59 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 5.5 AU - 8.44 AU

Year: 12071 Days

Day: 17.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 53,507,076 km

• M1: 72,106 km (0.1 R)
• M2: 387,907 km (0.052 R)
• M3: 1,367,923 km (0.082 R)
• M4: 1,876,556 km (0.093 R)
• M5: 2,115,763 km (0.08 R)
• M6: 4,214,920 km (0.117 R)
• M7: 5,404,672 km (0.118 R)
• M8: 5,758,620 km (0.092 R)
• M9: 8,008,572 km (0.115 R)
• M10: 8,554,156 km (0.088 R)
• M11: 10,635,511 km (0.063 R)
• M12: 23,753,000 km (0.061 R)
• M13: 24,527,020 km (0.111 R)
• M14: 25,229,083 km (0.059 R)
• M15: 27,135,408 km (0.088 R)
• M16: 30,623,432 km (0.102 R)
• M17: 32,369,838 km (0.108 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 472

Radius: 3.9

Gravity: 31.03 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 7.48 AU - 8.06 AU

Year: 14208 Days

Day: 24.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 53,507,076 km

• M1: 48,769 km (0.063 R)
• M2: 201,508 km (0.096 R)
• M3: 409,449 km (0.107 R)
• M4: 665,561 km (0.114 R)
• M5: 796,758 km (0.074 R)
• M6: 988,094 km (0.113 R)
• M7: 1,172,399 km (0.115 R)
• M8: 1,299,108 km (0.048 R)
• M9: 1,420,881 km (0.106 R)
• M10: 1,565,243 km (0.096 R)
• M11: 2,340,608 km (0.051 R)
• M12: 2,756,341 km (0.05 R)
• M13: 3,521,384 km (0.098 R)
• M14: 4,009,073 km (0.114 R)
• M15: 4,210,432 km (0.102 R)
• M16: 4,985,199 km (0.061 R)
• M17: 5,423,521 km (0.114 R)
• M18: 6,261,120 km (0.104 R)
• M19: 6,532,341 km (0.101 R)
• M20: 6,933,263 km (0.104 R)
• M21: 8,188,838 km (0.056 R)
• M22: 8,419,667 km (0.115 R)
• M23: 15,278,281 km (0.068 R)
• M24: 15,911,828 km (0.057 R)
• M25: 16,562,728 km (0.114 R)
• M26: 17,156,033 km (0.072 R)
• M27: 19,344,052 km (0.119 R)
• M28: 23,981,735 km (0.089 R)
• M29: 30,505,100 km (0.093 R)
• M30: 31,059,510 km (0.106 R)
• M31: 31,733,598 km (0.086 R)
• M32: 34,288,879 km (0.09 R)
• M33: 34,888,168 km (0.112 R)
• M34: 38,245,593 km (0.108 R)
• M35: 52,076,664 km (0.061 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 433 - 19,394 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit