🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.51 AU - 0.83 AU

Year: 349 Days

Day: 31.9 Hours

Environment

Temp: -133 °C

Axial Tilt: 11.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.5

Radius: 13.2

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.61 AU - 1.01 AU

Year: 464 Days

Day: 10.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 51,871,569 km

• M1: 165,006 km (0.047 R)
• M2: 606,021 km (0.115 R)
• M3: 1,030,879 km (0.063 R)
• M4: 1,531,284 km (0.115 R)
• M5: 2,080,308 km (0.09 R)
• M6: 2,544,361 km (0.114 R)
• M7: 3,021,279 km (0.036 R)
• M8: 3,457,955 km (0.102 R)
• M9: 3,910,040 km (0.082 R)
• M10: 4,716,372 km (0.062 R)
• M11: 5,143,324 km (0.107 R)
• M12: 6,003,063 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.4

Radius: 9.8

Gravity: 9.93 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.83 AU - 0.99 AU

Year: 552 Days

Day: 9.7 Hours

Environment

Temp: -148 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,871,569 km

• M1: 122,072 km (0.085 R)
• M2: 578,345 km (0.1 R)
• M3: 919,728 km (0.119 R)
• M4: 1,682,228 km (0.062 R)
• M5: 2,022,264 km (0.08 R)
• M6: 2,377,709 km (0.082 R)
• M7: 3,500,590 km (0.034 R)
• M8: 5,255,074 km (0.109 R)
• M9: 5,857,355 km (0.102 R)
• M10: 6,752,100 km (0.112 R)
• M11: 7,486,476 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 995.2

Radius: 14.7

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.99 AU - 1.33 AU

Year: 794 Days

Day: 12.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 51,871,569 km

• M1: 183,257 km (0.097 R)
• M2: 999,164 km (0.051 R)
• M3: 1,466,358 km (0.116 R)
• M4: 1,978,133 km (0.105 R)
• M5: 2,838,021 km (0.062 R)
• M6: 3,446,585 km (0.101 R)
• M7: 6,382,144 km (0.059 R)
• M8: 6,940,593 km (0.109 R)
• M9: 7,977,905 km (0.12 R)
• M10: 9,283,595 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.9

Radius: 12.3

Gravity: 6.31 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.15 AU - 1.25 AU

Year: 836 Days

Day: 5.9 Hours

Environment

Temp: -172 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 51,871,569 km

• M1: 153,039 km (0.078 R)
• M2: 585,227 km (0.108 R)
• M3: 1,000,211 km (0.058 R)
• M4: 1,637,199 km (0.085 R)
• M5: 2,161,240 km (0.052 R)
• M6: 2,556,029 km (0.096 R)
• M7: 3,792,306 km (0.091 R)
• M8: 4,355,841 km (0.08 R)
• M9: 4,937,777 km (0.084 R)
• M10: 5,373,705 km (0.1 R)
• M11: 6,323,352 km (0.094 R)
• M12: 7,000,732 km (0.077 R)
• M13: 8,581,233 km (0.06 R)
• M14: 9,101,534 km (0.099 R)
• M15: 9,671,951 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.3

Radius: 13.5

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 2.62 AU - 3.6 AU

Year: 3487 Days

Day: 11.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,871,569 km

• M1: 167,998 km (0.068 R)
• M2: 718,369 km (0.082 R)
• M3: 1,251,386 km (0.114 R)
• M4: 2,161,689 km (0.115 R)
• M5: 2,941,244 km (0.112 R)
• M6: 3,530,061 km (0.073 R)
• M7: 4,176,623 km (0.049 R)
• M8: 4,811,965 km (0.105 R)
• M9: 5,683,522 km (0.054 R)
• M10: 6,250,199 km (0.057 R)
• M11: 7,258,788 km (0.1 R)
• M12: 8,536,802 km (0.056 R)
• M13: 9,177,680 km (0.116 R)
• M14: 9,996,279 km (0.079 R)
• M15: 10,785,707 km (0.104 R)
• M16: 11,943,744 km (0.096 R)
• M17: 12,446,543 km (0.11 R)
• M18: 13,316,006 km (0.096 R)
• M19: 14,365,584 km (0.097 R)
• M20: 17,469,740 km (0.116 R)
• M21: 17,954,736 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 185.5

Radius: 5.6

Gravity: 5.92 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 10.29 AU - 10.71 AU

Year: 21633 Days

Day: 15.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 51,871,569 km

• M1: 69,862 km (0.108 R)
• M2: 371,751 km (0.116 R)
• M3: 598,990 km (0.11 R)
• M4: 812,915 km (0.096 R)
• M5: 1,583,194 km (0.106 R)
• M6: 1,897,649 km (0.116 R)
• M7: 3,095,479 km (0.062 R)
• M8: 3,460,049 km (0.117 R)
• M9: 3,962,698 km (0.041 R)
• M10: 4,246,036 km (0.066 R)
• M11: 4,758,708 km (0.115 R)
• M12: 6,900,950 km (0.081 R)
• M13: 8,136,329 km (0.103 R)
• M14: 8,830,014 km (0.104 R)
• M15: 9,069,820 km (0.054 R)
• M16: 9,866,428 km (0.107 R)
• M17: 12,296,347 km (0.039 R)
• M18: 12,716,567 km (0.087 R)
• M19: 14,099,749 km (0.101 R)
• M20: 14,760,373 km (0.114 R)
• M21: 15,030,248 km (0.109 R)
• M22: 15,580,020 km (0.11 R)
• M23: 19,163,936 km (0.119 R)
• M24: 20,056,287 km (0.038 R)
• M25: 22,541,258 km (0.051 R)
• M26: 23,535,186 km (0.098 R)
• M27: 32,107,593 km (0.08 R)
• M28: 34,892,058 km (0.071 R)
• M29: 35,612,372 km (0.037 R)
• M30: 35,854,720 km (0.116 R)
• M31: 39,106,080 km (0.087 R)
• M32: 45,757,650 km (0.097 R)
• M33: 49,877,426 km (0.079 R)
• M34: 51,098,444 km (0.07 R)
• M35: 51,716,283 km (0.068 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 380 - 19,651 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit