🌌 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: 0.73

Radius: 0.88

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.44 AU - 0.66 AU

Year: 259 Days

Day: 25.6 Hours

Environment

Temp: -132 °C

Axial Tilt: 36.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.2

Radius: 12.9

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.63 AU - 0.79 AU

Year: 380 Days

Day: 5 Hours

Environment

Temp: -140 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 64,645,809 km

• M1: 160,519 km (0.082 R)
• M2: 577,597 km (0.055 R)
• M3: 1,061,247 km (0.12 R)
• M4: 1,587,383 km (0.058 R)
• M5: 2,822,014 km (0.047 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 398.1

Radius: 14.2

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.07 AU - 1.23 AU

Year: 784 Days

Day: 14.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 64,645,809 km

• M1: 177,273 km (0.087 R)
• M2: 698,921 km (0.076 R)
• M3: 1,187,957 km (0.051 R)
• M4: 1,675,496 km (0.107 R)
• M5: 2,475,246 km (0.104 R)
• M6: 3,570,303 km (0.105 R)
• M7: 4,105,265 km (0.094 R)
• M8: 5,530,184 km (0.078 R)
• M9: 6,022,212 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91.2

Radius: 14.1

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.33 AU - 1.49 AU

Year: 1065 Days

Day: 6.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 64,645,809 km

• M1: 175,628 km (0.052 R)
• M2: 622,626 km (0.099 R)
• M3: 1,342,342 km (0.082 R)
• M4: 2,358,410 km (0.115 R)
• M5: 2,941,393 km (0.063 R)
• M6: 3,728,727 km (0.09 R)
• M7: 5,323,889 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 741.6

Radius: 13

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.98 AU - 2.42 AU

Year: 2075 Days

Day: 7.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 64,645,809 km

• M1: 209,587 km (0.085 R)
• M2: 726,896 km (0.07 R)
• M3: 1,482,664 km (0.064 R)
• M4: 1,890,917 km (0.087 R)
• M5: 2,550,494 km (0.042 R)
• M6: 3,635,527 km (0.096 R)
• M7: 4,557,649 km (0.12 R)
• M8: 5,750,692 km (0.114 R)
• M9: 6,303,456 km (0.087 R)
• M10: 7,781,782 km (0.097 R)
• M11: 8,943,410 km (0.106 R)
• M12: 10,217,385 km (0.094 R)
• M13: 11,259,484 km (0.072 R)
• M14: 12,370,996 km (0.116 R)
• M15: 15,327,050 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.7

Radius: 12.8

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.72 AU - 2.82 AU

Year: 2175 Days

Day: 13.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 64,645,809 km

• M1: 162,014 km (0.119 R)
• M2: 876,943 km (0.089 R)
• M3: 1,327,980 km (0.084 R)
• M4: 2,055,176 km (0.05 R)
• M5: 3,212,614 km (0.109 R)
• M6: 4,341,480 km (0.054 R)
• M7: 5,832,522 km (0.085 R)
• M8: 7,724,187 km (0.093 R)
• M9: 8,291,312 km (0.113 R)
• M10: 9,131,903 km (0.079 R)
• M11: 9,637,244 km (0.106 R)
• M12: 12,184,597 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.5

Radius: 14.9

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 2.36 AU - 3.06 AU

Year: 2837 Days

Day: 14.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 101.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 64,645,809 km

• M1: 185,651 km (0.071 R)
• M2: 984,354 km (0.116 R)
• M3: 1,522,757 km (0.106 R)
• M4: 2,336,719 km (0.054 R)
• M5: 3,793,503 km (0.112 R)
• M6: 4,382,320 km (0.083 R)
• M7: 6,113,766 km (0.119 R)
• M8: 7,009,558 km (0.117 R)
• M9: 8,997,414 km (0.11 R)
• M10: 9,771,583 km (0.102 R)
• M11: 10,959,540 km (0.102 R)
• M12: 12,403,907 km (0.073 R)
• M13: 13,193,335 km (0.069 R)
• M14: 14,780,868 km (0.06 R)
• M15: 16,004,279 km (0.092 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.5

Radius: 13.3

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 4.6 AU - 7.02 AU

Year: 8904 Days

Day: 12.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 64,645,809 km

• M1: 165,455 km (0.088 R)
• M2: 580,141 km (0.092 R)
• M3: 1,005,597 km (0.094 R)
• M4: 1,442,722 km (0.054 R)
• M5: 2,025,854 km (0.099 R)
• M6: 3,530,360 km (0.062 R)
• M7: 4,603,874 km (0.093 R)
• M8: 5,295,615 km (0.085 R)
• M9: 8,557,746 km (0.038 R)
• M10: 9,748,396 km (0.073 R)
• M11: 10,234,738 km (0.063 R)
• M12: 11,151,175 km (0.101 R)
• M13: 11,683,444 km (0.087 R)
• M14: 12,288,567 km (0.11 R)
• M15: 13,088,916 km (0.102 R)
• M16: 18,640,343 km (0.074 R)
• M17: 20,162,203 km (0.089 R)
• M18: 21,683,463 km (0.1 R)
• M19: 24,505,328 km (0.097 R)
• M20: 26,423,621 km (0.104 R)
• M21: 27,371,474 km (0.041 R)
• M22: 28,146,091 km (0.105 R)
• M23: 29,536,604 km (0.105 R)
• M24: 30,764,503 km (0.074 R)
• M25: 34,428,304 km (0.071 R)
• M26: 36,249,210 km (0.056 R)
• M27: 38,373,649 km (0.109 R)
• M28: 43,520,265 km (0.099 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 404.6

Radius: 3.4

Gravity: 35 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 5.27 AU - 8.71 AU

Year: 11750 Days

Day: 24 Hours

Environment

Temp: -224 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 64,645,809 km

• M1: 42,935 km (0.108 R)
• M2: 187,297 km (0.11 R)
• M3: 784,192 km (0.037 R)
• M4: 1,045,689 km (0.098 R)
• M5: 1,494,632 km (0.113 R)
• M6: 2,027,051 km (0.049 R)
• M7: 2,164,681 km (0.112 R)
• M8: 2,820,668 km (0.04 R)
• M9: 3,574,641 km (0.107 R)
• M10: 3,750,419 km (0.118 R)
• M11: 4,038,245 km (0.112 R)
• M12: 4,368,856 km (0.111 R)
• M13: 4,928,651 km (0.102 R)
• M14: 5,907,620 km (0.058 R)
• M15: 7,567,558 km (0.104 R)
• M16: 9,900,836 km (0.099 R)
• M17: 10,147,672 km (0.099 R)
• M18: 10,756,835 km (0.081 R)
• M19: 11,123,350 km (0.102 R)
• M20: 13,199,619 km (0.078 R)
• M21: 14,297,218 km (0.069 R)
• M22: 17,375,643 km (0.032 R)
• M23: 17,518,659 km (0.097 R)
• M24: 17,952,642 km (0.112 R)
• M25: 18,098,799 km (0.084 R)
• M26: 20,388,395 km (0.079 R)
• M27: 20,707,487 km (0.108 R)
• M28: 26,183,068 km (0.085 R)
• M29: 26,940,781 km (0.085 R)
• M30: 27,908,231 km (0.068 R)
• M31: 29,099,479 km (0.085 R)
• M32: 29,809,919 km (0.093 R)
• M33: 32,117,466 km (0.112 R)
• M34: 33,868,659 km (0.07 R)
• M35: 34,541,550 km (0.085 R)
• M36: 35,682,533 km (0.025 R)
• M37: 36,262,374 km (0.111 R)
• M38: 39,502,215 km (0.098 R)
• M39: 41,002,233 km (0.08 R)
• M40: 42,022,939 km (0.092 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 734.9

Radius: 4.9

Gravity: 30.61 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 6.47 AU - 10.07 AU

Year: 15121 Days

Day: 18.6 Hours

Environment

Temp: -234 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 64,645,809 km

• M1: 61,485 km (0.114 R)
• M2: 245,789 km (0.118 R)
• M3: 601,234 km (0.064 R)
• M4: 786,885 km (0.118 R)
• M5: 987,645 km (0.118 R)
• M6: 1,157,289 km (0.093 R)
• M7: 1,404,126 km (0.069 R)
• M8: 2,554,832 km (0.114 R)
• M9: 3,632,835 km (0.103 R)
• M10: 6,265,757 km (0.099 R)
• M11: 6,512,743 km (0.109 R)
• M12: 7,799,734 km (0.09 R)
• M13: 9,513,826 km (0.119 R)
• M14: 9,785,346 km (0.098 R)
• M15: 10,287,397 km (0.1 R)
• M16: 10,983,027 km (0.107 R)
• M17: 12,339,132 km (0.081 R)
• M18: 13,872,211 km (0.034 R)
• M19: 19,572,787 km (0.108 R)
• M20: 19,923,744 km (0.094 R)
• M21: 24,368,596 km (0.115 R)
• M22: 25,288,922 km (0.108 R)
• M23: 26,020,605 km (0.118 R)
• M24: 26,874,061 km (0.108 R)
• M25: 27,090,230 km (0.084 R)
• M26: 28,300,327 km (0.065 R)
• M27: 34,004,045 km (0.103 R)
• M28: 41,427,839 km (0.045 R)
• M29: 45,744,934 km (0.064 R)
• M30: 45,898,871 km (0.052 R)
• M31: 47,615,656 km (0.109 R)
• M32: 54,391,841 km (0.072 R)
• M33: 56,667,524 km (0.102 R)
• M34: 57,918,760 km (0.099 R)
• M35: 58,279,590 km (0.066 R)
• M36: 59,005,739 km (0.045 R)
• M37: 62,917,723 km (0.085 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: 274 - 12,700 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit