🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.13

Radius: 1.35

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.52 AU - 0.78 AU

Year: 344 Days

Day: 29.8 Hours

Environment

Temp: -127 °C

Axial Tilt: 25.2 °

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: 967.7

Radius: 8.5

Gravity: 13.39 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.65 AU - 0.97 AU

Year: 478 Days

Day: 7.5 Hours

Environment

Temp: -140 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 19,299,172 km

• M1: 109,057 km (0.098 R)
• M2: 445,203 km (0.114 R)
• M3: 754,572 km (0.06 R)
• M4: 1,217,128 km (0.07 R)
• M5: 1,842,896 km (0.102 R)
• M6: 2,121,747 km (0.106 R)
• M7: 2,614,672 km (0.104 R)
• M8: 3,050,600 km (0.1 R)
• M9: 4,468,638 km (0.082 R)
• M10: 4,993,577 km (0.092 R)
• M11: 5,576,859 km (0.042 R)
• M12: 6,675,655 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 295.8

Radius: 8.2

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.72 AU - 1.88 AU

Year: 1584 Days

Day: 6.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 19,299,172 km

• M1: 102,325 km (0.064 R)
• M2: 403,017 km (0.072 R)
• M3: 847,472 km (0.111 R)
• M4: 1,151,455 km (0.075 R)
• M5: 1,666,071 km (0.088 R)
• M6: 2,215,993 km (0.092 R)
• M7: 2,545,707 km (0.109 R)
• M8: 2,804,661 km (0.1 R)
• M9: 3,925,897 km (0.109 R)
• M10: 4,935,533 km (0.052 R)
• M11: 5,480,817 km (0.074 R)
• M12: 6,485,666 km (0.061 R)
• M13: 7,019,880 km (0.092 R)
• M14: 7,310,100 km (0.11 R)
• M15: 7,966,535 km (0.084 R)
• M16: 8,443,603 km (0.061 R)
• M17: 9,367,669 km (0.047 R)
• M18: 9,839,202 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 545.4

Radius: 8.3

Gravity: 7.92 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.99 AU - 2.85 AU

Year: 2470 Days

Day: 8.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 19,299,172 km

• M1: 103,372 km (0.092 R)
• M2: 456,872 km (0.117 R)
• M3: 1,199,177 km (0.074 R)
• M4: 1,594,265 km (0.06 R)
• M5: 2,013,737 km (0.055 R)
• M6: 2,315,625 km (0.091 R)
• M7: 3,255,399 km (0.081 R)
• M8: 3,673,675 km (0.065 R)
• M9: 4,246,336 km (0.028 R)
• M10: 5,838,954 km (0.093 R)
• M11: 6,783,067 km (0.103 R)
• M12: 7,291,550 km (0.114 R)
• M13: 8,512,717 km (0.111 R)
• M14: 9,341,938 km (0.108 R)
• M15: 10,892,819 km (0.09 R)
• M16: 12,031,110 km (0.118 R)
• M17: 13,290,125 km (0.104 R)
• M18: 13,552,071 km (0.042 R)
• M19: 15,055,231 km (0.119 R)
• M20: 17,279,751 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 627.8

Radius: 9

Gravity: 7.75 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 2.92 AU - 3.32 AU

Year: 3615 Days

Day: 11.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 19,299,172 km

• M1: 113,545 km (0.116 R)
• M2: 461,958 km (0.103 R)
• M3: 861,085 km (0.09 R)
• M4: 1,528,441 km (0.036 R)
• M5: 1,955,693 km (0.088 R)
• M6: 2,371,276 km (0.109 R)
• M7: 4,241,848 km (0.064 R)
• M8: 4,536,107 km (0.062 R)
• M9: 5,371,461 km (0.029 R)
• M10: 7,770,413 km (0.08 R)
• M11: 8,962,857 km (0.067 R)
• M12: 13,221,161 km (0.067 R)
• M13: 14,758,877 km (0.108 R)
• M14: 15,122,101 km (0.068 R)
• M15: 16,302,278 km (0.089 R)
• M16: 17,027,978 km (0.119 R)
• M17: 18,304,945 km (0.093 R)
• M18: 19,582,212 km (0.115 R)
• M19: 20,659,017 km (0.107 R)
• M20: 21,376,489 km (0.045 R)
• M21: 22,110,416 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 778.8

Radius: 11.8

Gravity: 5.59 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 3.61 AU - 5.85 AU

Year: 6748 Days

Day: 11.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 19,299,172 km

• M1: 148,999 km (0.117 R)
• M2: 805,285 km (0.1 R)
• M3: 1,181,973 km (0.064 R)
• M4: 1,790,687 km (0.093 R)
• M5: 2,386,385 km (0.104 R)
• M6: 2,967,274 km (0.099 R)
• M7: 3,502,834 km (0.085 R)
• M8: 4,308,119 km (0.112 R)
• M9: 4,685,405 km (0.113 R)
• M10: 5,506,997 km (0.083 R)
• M11: 6,353,721 km (0.096 R)
• M12: 7,398,213 km (0.113 R)
• M13: 7,941,852 km (0.107 R)
• M14: 8,935,780 km (0.06 R)
• M15: 9,734,333 km (0.055 R)
• M16: 11,220,439 km (0.037 R)
• M17: 11,782,478 km (0.112 R)
• M18: 12,470,927 km (0.08 R)
• M19: 17,925,864 km (0.041 R)
• M20: 18,342,494 km (0.075 R)
• M21: 20,074,389 km (0.05 R)
• M22: 21,442,910 km (0.093 R)
• M23: 22,229,645 km (0.063 R)
• M24: 23,035,529 km (0.063 R)
• M25: 25,049,116 km (0.117 R)
• M26: 29,136,280 km (0.103 R)
• M27: 29,906,858 km (0.077 R)
• M28: 38,260,254 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56.1

Radius: 11.6

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 5.24 AU - 6.16 AU

Year: 8927 Days

Day: 15 Hours

Environment

Temp: -214 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 19,299,172 km

• M1: 144,960 km (0.114 R)
• M2: 569,220 km (0.118 R)
• M3: 1,114,504 km (0.102 R)
• M4: 1,543,252 km (0.083 R)
• M5: 3,562,524 km (0.05 R)
• M6: 5,576,410 km (0.106 R)
• M7: 12,158,717 km (0.05 R)
• M8: 14,295,273 km (0.108 R)
• M9: 17,464,654 km (0.104 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 439 - 17,445 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit