🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.94

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.55 AU - 0.59 AU

Year: 282 Days

Day: 31 Hours

Environment

Temp: -123 °C

Axial Tilt: 32.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.3

Radius: 12

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.8 AU - 1.3 AU

Year: 706 Days

Day: 7.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 62,847,384 km

• M1: 149,448 km (0.078 R)
• M2: 583,731 km (0.111 R)
• M3: 1,023,848 km (0.08 R)
• M4: 1,447,659 km (0.061 R)
• M5: 2,755,742 km (0.079 R)
• M6: 4,316,946 km (0.07 R)
• M7: 4,972,932 km (0.119 R)
• M8: 5,434,292 km (0.089 R)
• M9: 5,963,121 km (0.116 R)
• M10: 6,525,908 km (0.088 R)
• M11: 8,161,761 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 961

Radius: 10.4

Gravity: 8.88 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.24 AU - 2 AU

Year: 1353 Days

Day: 11.3 Hours

Environment

Temp: -185 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 62,847,384 km

• M1: 130,449 km (0.066 R)
• M2: 464,053 km (0.091 R)
• M3: 833,260 km (0.096 R)
• M4: 1,380,639 km (0.091 R)
• M5: 1,727,706 km (0.086 R)
• M6: 5,122,530 km (0.058 R)
• M7: 5,692,199 km (0.062 R)
• M8: 6,701,386 km (0.052 R)
• M9: 7,741,540 km (0.107 R)
• M10: 9,515,023 km (0.076 R)
• M11: 11,362,108 km (0.051 R)
• M12: 11,952,571 km (0.094 R)
• M13: 12,955,624 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.3

Radius: 9.2

Gravity: 10.67 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 2.01 AU - 3.17 AU

Year: 2734 Days

Day: 5.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 62,847,384 km

• M1: 114,891 km (0.119 R)
• M2: 524,341 km (0.088 R)
• M3: 913,295 km (0.09 R)
• M4: 1,257,669 km (0.119 R)
• M5: 2,055,624 km (0.105 R)
• M6: 2,401,644 km (0.116 R)
• M7: 3,525,723 km (0.112 R)
• M8: 4,524,737 km (0.067 R)
• M9: 5,238,618 km (0.097 R)
• M10: 5,596,606 km (0.069 R)
• M11: 6,220,279 km (0.099 R)
• M12: 7,768,019 km (0.107 R)
• M13: 8,371,198 km (0.037 R)
• M14: 9,077,449 km (0.095 R)
• M15: 10,368,778 km (0.078 R)
• M16: 11,058,424 km (0.025 R)
• M17: 12,893,541 km (0.076 R)
• M18: 13,835,110 km (0.073 R)
• M19: 15,802,023 km (0.057 R)
• M20: 16,769,921 km (0.098 R)
• M21: 18,470,101 km (0.049 R)
• M22: 19,121,450 km (0.065 R)
• M23: 19,726,723 km (0.082 R)
• M24: 20,532,607 km (0.097 R)
• M25: 21,489,585 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 59.1

Radius: 14.1

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.49 AU - 3.17 AU

Year: 3123 Days

Day: 5.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,847,384 km

• M1: 175,329 km (0.095 R)
• M2: 652,546 km (0.093 R)
• M3: 1,194,988 km (0.083 R)
• M4: 1,725,163 km (0.073 R)
• M5: 5,358,297 km (0.083 R)
• M6: 5,911,061 km (0.117 R)
• M7: 6,677,750 km (0.116 R)
• M8: 7,485,877 km (0.094 R)
• M9: 8,805,929 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 318.2

Radius: 11.5

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 5.37 AU - 5.69 AU

Year: 8531 Days

Day: 9.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 62,847,384 km

• M1: 164,857 km (0.114 R)
• M2: 620,083 km (0.096 R)
• M3: 1,630,467 km (0.099 R)
• M4: 2,519,378 km (0.04 R)
• M5: 3,033,546 km (0.099 R)
• M6: 4,501,699 km (0.119 R)
• M7: 8,616,089 km (0.115 R)
• M8: 11,401,153 km (0.091 R)
• M9: 15,086,646 km (0.099 R)
• M10: 17,422,766 km (0.068 R)
• M11: 19,499,634 km (0.116 R)
• M12: 22,569,980 km (0.096 R)
• M13: 24,381,162 km (0.076 R)
• M14: 32,208,721 km (0.045 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 722.2

Radius: 7.1

Gravity: 14.33 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 6.11 AU - 9.73 AU

Year: 14622 Days

Day: 19.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 62,847,384 km

• M1: 88,562 km (0.058 R)
• M2: 765,642 km (0.07 R)
• M3: 1,309,879 km (0.087 R)
• M4: 1,868,926 km (0.031 R)
• M5: 2,919,851 km (0.089 R)
• M6: 4,606,418 km (0.072 R)
• M7: 6,439,141 km (0.08 R)
• M8: 7,517,143 km (0.096 R)
• M9: 8,075,293 km (0.111 R)
• M10: 12,081,674 km (0.118 R)
• M11: 13,780,208 km (0.115 R)
• M12: 14,829,487 km (0.103 R)
• M13: 16,081,771 km (0.104 R)
• M14: 16,850,555 km (0.1 R)
• M15: 17,805,288 km (0.103 R)
• M16: 24,202,841 km (0.025 R)
• M17: 25,416,828 km (0.097 R)
• M18: 31,384,885 km (0.12 R)
• M19: 31,860,756 km (0.047 R)
• M20: 35,328,435 km (0.111 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: 284 - 18,546 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit