🌌 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: 2.41

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.48 AU - 0.62 AU

Year: 268 Days

Day: 26.5 Hours

Environment

Temp: -128 °C

Axial Tilt: 11.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 62,993,467 km

• M1: 34,856 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 426.6

Radius: 12.4

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.88 AU - 1.04 AU

Year: 617 Days

Day: 5.6 Hours

Environment

Temp: -157 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 62,993,467 km

• M1: 154,385 km (0.116 R)
• M2: 593,604 km (0.118 R)
• M3: 981,661 km (0.118 R)
• M4: 1,377,497 km (0.076 R)
• M5: 1,898,995 km (0.062 R)
• M6: 2,881,554 km (0.102 R)
• M7: 3,555,792 km (0.086 R)
• M8: 3,957,911 km (0.049 R)
• M9: 5,334,959 km (0.093 R)
• M10: 5,935,595 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 968

Radius: 12.1

Gravity: 6.61 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 2.61 AU - 2.85 AU

Year: 2959 Days

Day: 6.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 62,993,467 km

• M1: 150,495 km (0.117 R)
• M2: 567,574 km (0.092 R)
• M3: 1,194,539 km (0.095 R)
• M4: 1,580,202 km (0.029 R)
• M5: 1,998,328 km (0.118 R)
• M6: 2,401,046 km (0.095 R)
• M7: 2,977,147 km (0.085 R)
• M8: 3,354,882 km (0.1 R)
• M9: 3,764,630 km (0.082 R)
• M10: 4,975,775 km (0.103 R)
• M11: 5,406,467 km (0.102 R)
• M12: 6,227,759 km (0.085 R)
• M13: 7,289,007 km (0.041 R)
• M14: 7,947,536 km (0.116 R)
• M15: 8,826,125 km (0.1 R)
• M16: 9,383,676 km (0.108 R)
• M17: 9,846,532 km (0.028 R)
• M18: 11,028,505 km (0.117 R)
• M19: 12,394,034 km (0.104 R)
• M20: 12,857,787 km (0.064 R)
• M21: 13,381,230 km (0.081 R)
• M22: 16,105,557 km (0.118 R)
• M23: 17,223,502 km (0.047 R)
• M24: 17,743,205 km (0.051 R)
• M25: 18,512,288 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 433.7

Radius: 12.6

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 2.5 AU - 3.22 AU

Year: 3173 Days

Day: 10.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 62,993,467 km

• M1: 156,779 km (0.045 R)
• M2: 1,118,693 km (0.059 R)
• M3: 1,523,804 km (0.105 R)
• M4: 2,418,399 km (0.118 R)
• M5: 2,936,157 km (0.05 R)
• M6: 3,900,465 km (0.112 R)
• M7: 4,905,165 km (0.117 R)
• M8: 5,396,145 km (0.094 R)
• M9: 6,233,893 km (0.078 R)
• M10: 7,758,894 km (0.108 R)
• M11: 8,658,725 km (0.032 R)
• M12: 9,770,835 km (0.075 R)
• M13: 10,512,990 km (0.059 R)
• M14: 11,252,453 km (0.025 R)
• M15: 12,405,104 km (0.093 R)
• M16: 13,098,191 km (0.1 R)
• M17: 14,046,941 km (0.081 R)
• M18: 15,980,344 km (0.108 R)
• M19: 18,807,444 km (0.039 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.2

Radius: 10.4

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 3.59 AU - 4.13 AU

Year: 4975 Days

Day: 8.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 62,993,467 km

• M1: 129,701 km (0.082 R)
• M2: 468,989 km (0.071 R)
• M3: 830,119 km (0.091 R)
• M4: 1,439,132 km (0.118 R)
• M5: 2,001,320 km (0.096 R)
• M6: 3,300,129 km (0.118 R)
• M7: 4,306,324 km (0.11 R)
• M8: 4,803,139 km (0.067 R)
• M9: 6,882,400 km (0.12 R)
• M10: 7,423,346 km (0.058 R)
• M11: 8,861,131 km (0.08 R)
• M12: 9,501,709 km (0.096 R)
• M13: 10,432,656 km (0.099 R)
• M14: 13,177,927 km (0.101 R)
• M15: 13,959,576 km (0.081 R)
• M16: 14,937,946 km (0.069 R)
• M17: 17,583,584 km (0.058 R)
• M18: 20,734,265 km (0.114 R)
• M19: 21,934,937 km (0.105 R)
• M20: 26,299,455 km (0.049 R)
• M21: 27,370,426 km (0.067 R)
• M22: 28,128,588 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 457.5

Radius: 12.5

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 3.86 AU - 4.24 AU

Year: 5347 Days

Day: 11 Hours

Environment

Temp: -213 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 62,993,467 km

• M1: 155,582 km (0.065 R)
• M2: 632,350 km (0.114 R)
• M3: 2,174,405 km (0.056 R)
• M4: 3,325,411 km (0.075 R)
• M5: 3,860,822 km (0.051 R)
• M6: 4,358,235 km (0.108 R)
• M7: 5,482,762 km (0.11 R)
• M8: 6,054,076 km (0.053 R)
• M9: 6,508,405 km (0.052 R)
• M10: 8,977,069 km (0.102 R)
• M11: 9,650,259 km (0.109 R)
• M12: 10,399,595 km (0.062 R)
• M13: 10,964,477 km (0.064 R)
• M14: 12,539,443 km (0.081 R)
• M15: 13,030,124 km (0.097 R)
• M16: 15,905,395 km (0.075 R)
• M17: 16,951,234 km (0.059 R)
• M18: 17,370,108 km (0.112 R)
• M19: 18,104,185 km (0.031 R)
• M20: 19,373,672 km (0.055 R)
• M21: 21,388,008 km (0.099 R)
• M22: 22,517,771 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 846.2

Radius: 7.1

Gravity: 16.79 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 6.66 AU - 8.4 AU

Year: 13555 Days

Day: 15.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 62,993,467 km

• M1: 97,687 km (0.064 R)
• M2: 979,866 km (0.106 R)
• M3: 1,855,612 km (0.111 R)
• M4: 2,227,811 km (0.119 R)
• M5: 2,453,255 km (0.095 R)
• M6: 2,831,888 km (0.09 R)
• M7: 3,122,108 km (0.069 R)
• M8: 4,455,623 km (0.118 R)
• M9: 5,124,625 km (0.064 R)
• M10: 8,831,660 km (0.118 R)
• M11: 11,313,937 km (0.115 R)
• M12: 12,682,010 km (0.089 R)
• M13: 15,299,075 km (0.064 R)
• M14: 16,271,312 km (0.106 R)
• M15: 16,733,569 km (0.097 R)
• M16: 18,173,299 km (0.082 R)
• M17: 23,081,755 km (0.101 R)
• M18: 23,665,486 km (0.081 R)
• M19: 24,963,995 km (0.081 R)
• M20: 27,920,797 km (0.072 R)
• M21: 28,250,810 km (0.086 R)
• M22: 30,985,309 km (0.081 R)
• M23: 31,934,807 km (0.101 R)
• M24: 35,026,546 km (0.091 R)
• M25: 38,583,684 km (0.12 R)
• M26: 39,821,008 km (0.032 R)
• M27: 40,379,308 km (0.11 R)
• M28: 50,198,463 km (0.104 R)
• M29: 51,672,152 km (0.077 R)
• M30: 52,336,366 km (0.092 R)
• M31: 53,512,355 km (0.054 R)
• M32: 57,500,186 km (0.077 R)
• M33: 57,856,079 km (0.117 R)
• M34: 58,752,021 km (0.076 R)
• M35: 62,241,690 km (0.101 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 371 - 13,097 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit