🌌 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: 2.14

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.43 AU - 0.69 AU

Year: 271 Days

Day: 38.5 Hours

Environment

Temp: -130 °C

Axial Tilt: 35.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.6

Radius: 8.6

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.56 AU - 0.88 AU

Year: 394 Days

Day: 5.9 Hours

Environment

Temp: -137 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,305,211 km

• M1: 106,962 km (0.1 R)
• M2: 472,280 km (0.115 R)
• M3: 751,580 km (0.115 R)
• M4: 1,022,651 km (0.093 R)
• M5: 1,843,345 km (0.091 R)
• M6: 2,150,170 km (0.054 R)
• M7: 2,483,474 km (0.028 R)
• M8: 3,273,949 km (0.051 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 128.3

Radius: 13.2

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.69 AU - 1.01 AU

Year: 506 Days

Day: 7.2 Hours

Environment

Temp: -148 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 66,305,211 km

• M1: 164,258 km (0.091 R)
• M2: 807,829 km (0.103 R)
• M3: 1,248,095 km (0.108 R)
• M4: 1,659,639 km (0.108 R)
• M5: 2,283,013 km (0.053 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.7

Radius: 8.2

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.04 AU - 1.5 AU

Year: 924 Days

Day: 6.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 66,305,211 km

• M1: 102,624 km (0.104 R)
• M2: 2,575,178 km (0.1 R)
• M3: 3,853,342 km (0.047 R)
• M4: 5,349,470 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 675.1

Radius: 9.1

Gravity: 8.15 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 3.84 AU - 6.08 AU

Year: 7132 Days

Day: 9.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 66,305,211 km

• M1: 113,395 km (0.089 R)
• M2: 685,308 km (0.097 R)
• M3: 1,255,126 km (0.076 R)
• M4: 1,553,275 km (0.119 R)
• M5: 2,005,210 km (0.092 R)
• M6: 2,435,304 km (0.085 R)
• M7: 2,826,652 km (0.098 R)
• M8: 3,413,823 km (0.066 R)
• M9: 4,311,859 km (0.066 R)
• M10: 5,002,702 km (0.104 R)
• M11: 5,829,679 km (0.09 R)
• M12: 6,429,716 km (0.076 R)
• M13: 6,744,919 km (0.069 R)
• M14: 7,990,172 km (0.12 R)
• M15: 10,019,018 km (0.065 R)
• M16: 11,328,598 km (0.104 R)
• M17: 13,247,340 km (0.111 R)
• M18: 16,845,019 km (0.07 R)
• M19: 17,649,108 km (0.119 R)
• M20: 19,844,606 km (0.113 R)
• M21: 21,122,920 km (0.041 R)
• M22: 21,431,541 km (0.096 R)
• M23: 26,162,573 km (0.092 R)
• M24: 26,518,616 km (0.043 R)
• M25: 27,882,500 km (0.064 R)
• M26: 34,124,471 km (0.034 R)
• M27: 34,978,226 km (0.111 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 543.2

Radius: 3.8

Gravity: 37.62 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 5.7 AU - 6.46 AU

Year: 9680 Days

Day: 22.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 66,305,211 km

• M1: 48,171 km (0.064 R)
• M2: 275,709 km (0.117 R)
• M3: 399,426 km (0.052 R)
• M4: 631,901 km (0.071 R)
• M5: 791,971 km (0.039 R)
• M6: 1,253,630 km (0.11 R)
• M7: 1,987,408 km (0.063 R)
• M8: 2,121,597 km (0.086 R)
• M9: 3,036,238 km (0.062 R)
• M10: 3,376,424 km (0.1 R)
• M11: 3,666,494 km (0.093 R)
• M12: 4,578,592 km (0.117 R)
• M13: 6,876,117 km (0.06 R)
• M14: 7,301,872 km (0.081 R)
• M15: 7,541,528 km (0.06 R)
• M16: 8,685,054 km (0.033 R)
• M17: 9,274,769 km (0.044 R)
• M18: 9,508,590 km (0.109 R)
• M19: 20,706,589 km (0.069 R)
• M20: 27,727,666 km (0.114 R)
• M21: 29,199,859 km (0.062 R)
• M22: 32,512,704 km (0.105 R)
• M23: 34,259,408 km (0.03 R)
• M24: 35,382,140 km (0.067 R)
• M25: 42,254,367 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 372.5

Radius: 3.5

Gravity: 30.41 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 6.62 AU - 7.44 AU

Year: 12035 Days

Day: 17.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 66,305,211 km

• M1: 43,533 km (0.092 R)
• M2: 175,628 km (0.073 R)
• M3: 305,778 km (0.085 R)
• M4: 685,906 km (0.118 R)
• M5: 933,491 km (0.086 R)
• M6: 1,691,204 km (0.119 R)
• M7: 1,923,380 km (0.111 R)
• M8: 2,176,350 km (0.073 R)
• M9: 2,394,314 km (0.099 R)
• M10: 2,567,249 km (0.094 R)
• M11: 2,873,775 km (0.102 R)
• M12: 3,025,019 km (0.068 R)
• M13: 3,158,759 km (0.116 R)
• M14: 3,390,636 km (0.08 R)
• M15: 3,759,544 km (0.086 R)
• M16: 4,348,062 km (0.041 R)
• M17: 4,576,498 km (0.115 R)
• M18: 6,442,731 km (0.098 R)
• M19: 8,147,399 km (0.057 R)
• M20: 10,583,152 km (0.058 R)
• M21: 11,910,234 km (0.073 R)
• M22: 12,020,937 km (0.038 R)
• M23: 12,300,835 km (0.104 R)
• M24: 14,445,320 km (0.053 R)
• M25: 17,674,839 km (0.118 R)
• M26: 20,469,776 km (0.071 R)
• M27: 25,421,316 km (0.104 R)
• M28: 26,442,471 km (0.119 R)
• M29: 33,368,852 km (0.113 R)
• M30: 34,255,519 km (0.097 R)
• M31: 43,869,875 km (0.072 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 195.9

Radius: 6.6

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 5.99 AU - 8.99 AU

Year: 13235 Days

Day: 15.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,305,211 km

• M1: 107,112 km (0.109 R)
• M2: 1,326,784 km (0.074 R)
• M3: 2,662,094 km (0.099 R)
• M4: 3,081,267 km (0.115 R)
• M5: 3,317,931 km (0.067 R)
• M6: 5,423,372 km (0.091 R)
• M7: 7,765,476 km (0.068 R)
• M8: 8,043,578 km (0.092 R)
• M9: 8,328,413 km (0.1 R)
• M10: 9,267,588 km (0.082 R)
• M11: 10,904,189 km (0.08 R)
• M12: 12,238,452 km (0.073 R)
• M13: 13,793,223 km (0.082 R)
• M14: 17,155,585 km (0.092 R)
• M15: 26,057,556 km (0.094 R)
• M16: 28,052,443 km (0.05 R)
• M17: 28,332,191 km (0.113 R)
• M18: 30,933,848 km (0.118 R)
• M19: 35,182,577 km (0.088 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 649.2

Radius: 7.8

Gravity: 10.67 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 6.83 AU - 10.67 AU

Year: 16712 Days

Day: 15.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 66,305,211 km

• M1: 97,239 km (0.111 R)
• M2: 343,626 km (0.067 R)
• M3: 801,994 km (0.041 R)
• M4: 1,082,640 km (0.119 R)
• M5: 1,762,413 km (0.093 R)
• M6: 2,984,627 km (0.109 R)
• M7: 3,701,351 km (0.115 R)
• M8: 4,334,299 km (0.102 R)
• M9: 4,727,293 km (0.087 R)
• M10: 5,179,527 km (0.115 R)
• M11: 8,623,868 km (0.11 R)
• M12: 9,787,441 km (0.089 R)
• M13: 11,600,118 km (0.109 R)
• M14: 11,975,160 km (0.115 R)
• M15: 12,815,601 km (0.106 R)
• M16: 14,184,571 km (0.104 R)
• M17: 14,613,618 km (0.088 R)
• M18: 16,889,749 km (0.045 R)
• M19: 17,290,821 km (0.075 R)
• M20: 19,832,190 km (0.111 R)
• M21: 21,564,533 km (0.099 R)
• M22: 24,297,836 km (0.105 R)
• M23: 26,171,998 km (0.086 R)
• M24: 26,817,513 km (0.083 R)
• M25: 29,971,335 km (0.092 R)
• M26: 36,468,670 km (0.081 R)
• M27: 38,366,020 km (0.078 R)
• M28: 39,338,854 km (0.075 R)
• M29: 43,245,902 km (0.077 R)
• M30: 45,989,527 km (0.114 R)
• M31: 46,614,547 km (0.118 R)
• M32: 49,009,160 km (0.031 R)
• M33: 50,982,954 km (0.073 R)
• M34: 51,989,449 km (0.115 R)
• M35: 53,180,397 km (0.102 R)
• M36: 61,274,091 km (0.088 R)
• M37: 62,411,633 km (0.108 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 403 - 14,489 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit