🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.15

Radius: 0.47

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.93 AU - 1.08 AU

Year: 383 Days

Day: 33.3 Hours

Environment

Temp: 2 °C

Axial Tilt: 49.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 35,911,306 km

• M1: 266,135 km (0.086 R)

Asteroid Belt

Center: 2.66 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 4.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.8

Radius: 14.2

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 3.97 AU - 4.67 AU

Year: 3438 Days

Day: 5.7 Hours

Environment

Temp: -134 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 35,911,306 km

• M1: 176,525 km (0.114 R)
• M2: 733,927 km (0.117 R)
• M3: 1,216,231 km (0.072 R)
• M4: 1,960,330 km (0.116 R)
• M5: 2,880,956 km (0.109 R)
• M6: 3,561,776 km (0.055 R)
• M7: 4,236,911 km (0.076 R)
• M8: 5,355,155 km (0.119 R)
• M9: 6,172,558 km (0.108 R)
• M10: 6,661,892 km (0.088 R)
• M11: 7,417,511 km (0.117 R)
• M12: 10,954,902 km (0.048 R)
• M13: 11,971,570 km (0.078 R)
• M14: 13,050,170 km (0.066 R)
• M15: 13,859,495 km (0.035 R)

Planet 3 - Gas Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 828.5

Radius: 11.8

Gravity: 5.95 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 5.11 AU - 7.51 AU

Year: 6069 Days

Day: 10.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 35,911,306 km

• M1: 147,055 km (0.106 R)
• M2: 650,751 km (0.099 R)
• M3: 1,696,589 km (0.065 R)
• M4: 2,293,036 km (0.119 R)
• M5: 3,860,223 km (0.106 R)
• M6: 4,704,404 km (0.112 R)
• M7: 5,244,004 km (0.111 R)
• M8: 7,904,901 km (0.11 R)
• M9: 9,482,560 km (0.114 R)
• M10: 11,460,244 km (0.119 R)
• M11: 13,031,919 km (0.083 R)
• M12: 13,926,664 km (0.054 R)
• M13: 15,345,002 km (0.12 R)
• M14: 15,776,292 km (0.081 R)
• M15: 17,250,579 km (0.027 R)
• M16: 22,223,960 km (0.061 R)
• M17: 23,663,242 km (0.102 R)
• M18: 24,572,946 km (0.11 R)
• M19: 28,353,883 km (0.071 R)
• M20: 32,708,677 km (0.114 R)
• M21: 36,063,858 km (0.106 R)
• M22: 36,498,739 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 774.7

Radius: 13.3

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 5.34 AU - 7.32 AU

Year: 6098 Days

Day: 12.6 Hours

Environment

Temp: -154 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 35,911,306 km

• M1: 165,455 km (0.096 R)
• M2: 589,116 km (0.047 R)
• M3: 1,219,971 km (0.056 R)
• M4: 1,764,656 km (0.06 R)
• M5: 2,351,679 km (0.106 R)
• M6: 3,996,358 km (0.063 R)
• M7: 5,048,031 km (0.074 R)
• M8: 5,700,876 km (0.115 R)
• M9: 6,715,897 km (0.077 R)
• M10: 7,432,471 km (0.118 R)
• M11: 8,199,459 km (0.11 R)
• M12: 8,684,605 km (0.084 R)
• M13: 9,274,918 km (0.067 R)
• M14: 10,210,354 km (0.037 R)
• M15: 10,677,548 km (0.063 R)
• M16: 13,674,891 km (0.096 R)
• M17: 14,946,174 km (0.069 R)
• M18: 15,549,352 km (0.094 R)
• M19: 19,374,121 km (0.099 R)
• M20: 20,826,866 km (0.109 R)
• M21: 24,112,334 km (0.047 R)
• M22: 24,608,401 km (0.099 R)
• M23: 26,137,441 km (0.116 R)
• M24: 28,273,549 km (0.072 R)
• M25: 29,760,701 km (0.03 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: 240 - 17,469 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit