🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822.9

Radius: 8.9

Gravity: 10.39 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.43 AU - 0.63 AU

Year: 257 Days

Day: 6.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 83.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,962,469 km

• M1: 111,002 km (0.048 R)
• M2: 394,041 km (0.112 R)
• M3: 688,449 km (0.058 R)
• M4: 1,132,755 km (0.116 R)
• M5: 1,533,229 km (0.1 R)
• M6: 1,901,239 km (0.065 R)
• M7: 2,221,528 km (0.05 R)
• M8: 2,695,604 km (0.105 R)
• M9: 3,163,397 km (0.051 R)
• M10: 3,560,280 km (0.1 R)
• M11: 3,965,840 km (0.075 R)
• M12: 4,312,458 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 995.5

Radius: 9.9

Gravity: 10.16 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.51 AU - 0.67 AU

Year: 302 Days

Day: 12.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,962,469 km

• M1: 123,119 km (0.109 R)
• M2: 457,321 km (0.11 R)
• M3: 924,216 km (0.094 R)
• M4: 1,535,921 km (0.047 R)
• M5: 1,995,785 km (0.083 R)
• M6: 2,408,376 km (0.078 R)
• M7: 2,767,112 km (0.06 R)
• M8: 3,161,452 km (0.114 R)
• M9: 4,064,125 km (0.096 R)
• M10: 4,847,569 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 276.7

Radius: 11.4

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.62 AU - 0.66 AU

Year: 341 Days

Day: 10.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,962,469 km

• M1: 141,819 km (0.087 R)
• M2: 546,032 km (0.035 R)
• M3: 956,080 km (0.084 R)
• M4: 1,475,185 km (0.072 R)
• M5: 1,903,783 km (0.1 R)
• M6: 2,383,992 km (0.114 R)
• M7: 3,315,687 km (0.055 R)
• M8: 3,707,634 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.6

Radius: 12.1

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.58 AU - 0.96 AU

Year: 451 Days

Day: 10.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,962,469 km

• M1: 150,495 km (0.095 R)
• M2: 565,480 km (0.075 R)
• M3: 1,225,805 km (0.042 R)
• M4: 1,609,224 km (0.114 R)
• M5: 2,116,511 km (0.082 R)
• M6: 2,580,563 km (0.057 R)
• M7: 3,013,200 km (0.07 R)
• M8: 3,543,076 km (0.101 R)
• M9: 4,107,359 km (0.036 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283.4

Radius: 8.8

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.85 AU - 1.27 AU

Year: 728 Days

Day: 8.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,962,469 km

• M1: 109,506 km (0.109 R)
• M2: 421,716 km (0.086 R)
• M3: 696,976 km (0.105 R)
• M4: 1,177,784 km (0.077 R)
• M5: 1,574,218 km (0.098 R)
• M6: 2,032,586 km (0.084 R)
• M7: 2,669,125 km (0.1 R)
• M8: 3,125,100 km (0.086 R)
• M9: 3,865,609 km (0.069 R)
• M10: 4,465,048 km (0.12 R)
• M11: 4,825,728 km (0.098 R)
• M12: 5,386,720 km (0.087 R)
• M13: 5,954,743 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.4

Radius: 9.5

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.31 AU - 1.33 AU

Year: 1011 Days

Day: 13.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,962,469 km

• M1: 119,379 km (0.087 R)
• M2: 1,624,782 km (0.102 R)
• M3: 1,948,213 km (0.09 R)
• M4: 2,306,051 km (0.085 R)
• M5: 3,177,908 km (0.117 R)
• M6: 4,408,948 km (0.097 R)
• M7: 5,061,943 km (0.108 R)
• M8: 5,777,919 km (0.065 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282

Radius: 8.3

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 2.12 AU - 3.48 AU

Year: 3124 Days

Day: 14 Hours

Environment

Temp: -219 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 66,962,469 km

• M1: 103,223 km (0.079 R)
• M2: 393,293 km (0.045 R)
• M3: 684,261 km (0.083 R)
• M4: 1,070,971 km (0.12 R)
• M5: 1,409,511 km (0.106 R)
• M6: 1,670,709 km (0.028 R)
• M7: 2,204,474 km (0.107 R)
• M8: 2,643,843 km (0.075 R)
• M9: 3,539,934 km (0.085 R)
• M10: 3,916,771 km (0.112 R)
• M11: 4,687,948 km (0.096 R)
• M12: 5,165,614 km (0.104 R)
• M13: 5,486,203 km (0.091 R)
• M14: 5,771,635 km (0.093 R)
• M15: 6,192,753 km (0.057 R)
• M16: 6,714,551 km (0.109 R)
• M17: 7,756,650 km (0.114 R)
• M18: 9,198,025 km (0.088 R)
• M19: 9,738,821 km (0.083 R)
• M20: 10,408,421 km (0.09 R)
• M21: 10,921,093 km (0.086 R)
• M22: 13,697,630 km (0.117 R)
• M23: 15,085,898 km (0.082 R)
• M24: 15,505,969 km (0.105 R)
• M25: 15,790,354 km (0.108 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 625.3

Radius: 11

Gravity: 5.17 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 3.62 AU - 3.8 AU

Year: 4765 Days

Day: 12.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,962,469 km

• M1: 136,882 km (0.09 R)
• M2: 522,246 km (0.05 R)
• M3: 1,443,021 km (0.056 R)
• M4: 1,970,802 km (0.05 R)
• M5: 2,397,007 km (0.062 R)
• M6: 3,162,349 km (0.059 R)
• M7: 3,519,589 km (0.101 R)
• M8: 4,833,806 km (0.076 R)
• M9: 6,023,708 km (0.096 R)
• M10: 6,576,322 km (0.06 R)
• M11: 8,106,409 km (0.076 R)
• M12: 10,326,591 km (0.087 R)
• M13: 11,763,180 km (0.112 R)
• M14: 12,875,141 km (0.088 R)
• M15: 13,431,046 km (0.106 R)
• M16: 14,108,725 km (0.114 R)
• M17: 15,195,553 km (0.081 R)
• M18: 16,869,404 km (0.032 R)
• M19: 18,535,326 km (0.03 R)
• M20: 21,270,872 km (0.039 R)
• M21: 21,905,616 km (0.111 R)
• M22: 23,885,694 km (0.105 R)
• M23: 25,585,125 km (0.115 R)
• M24: 26,383,679 km (0.066 R)

Asteroid Belt

Center: 6.25 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 8.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 620.5

Radius: 4

Gravity: 38.78 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 7.78 AU - 9.78 AU

Year: 17349 Days

Day: 21.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,962,469 km

• M1: 51,312 km (0.07 R)
• M2: 237,262 km (0.109 R)
• M3: 576,999 km (0.029 R)
• M4: 1,021,753 km (0.063 R)
• M5: 1,518,568 km (0.11 R)
• M6: 1,648,120 km (0.065 R)
• M7: 2,304,555 km (0.103 R)
• M8: 3,330,348 km (0.097 R)
• M9: 3,635,079 km (0.082 R)
• M10: 4,936,730 km (0.052 R)
• M11: 6,908,579 km (0.109 R)
• M12: 8,116,283 km (0.086 R)
• M13: 8,718,564 km (0.071 R)
• M14: 11,800,729 km (0.106 R)
• M15: 14,215,687 km (0.116 R)
• M16: 14,720,730 km (0.047 R)
• M17: 16,229,574 km (0.097 R)
• M18: 43,960,232 km (0.091 R)
• M19: 55,803,895 km (0.073 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: 526 - 15,749 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit