🌌 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: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.59

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.84 AU - 1.14 AU

Year: 377 Days

Day: 16.6 Hours

Environment

Temp: 7 °C

Axial Tilt: 9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 63,884,666 km

• M1: 94,995 km (0.118 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.67

Radius: 1.23

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.98 AU - 1.16 AU

Year: 424 Days

Day: 17.9 Hours

Environment

Temp: -1 °C

Axial Tilt: 13.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 63,884,666 km

• M1: 29,022 km (0.114 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.83

Radius: 1.52

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 1.31 AU - 2.15 AU

Year: 871 Days

Day: 46.6 Hours

Environment

Temp: -58 °C

Axial Tilt: 29.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.28

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.6 AU - 4.04 AU

Year: 2316 Days

Day: 28.9 Hours

Environment

Temp: -117 °C

Axial Tilt: 39.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.83 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.9

Radius: 12.8

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 4.14 AU - 4.54 AU

Year: 3462 Days

Day: 7.6 Hours

Environment

Temp: -138 °C

Axial Tilt: 167.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 63,884,666 km

• M1: 159,172 km (0.094 R)
• M2: 604,525 km (0.1 R)
• M3: 1,108,969 km (0.082 R)
• M4: 2,835,628 km (0.096 R)
• M5: 4,124,413 km (0.114 R)
• M6: 4,692,137 km (0.103 R)
• M7: 5,336,455 km (0.102 R)
• M8: 6,148,472 km (0.116 R)
• M9: 6,951,065 km (0.076 R)
• M10: 9,012,524 km (0.065 R)
• M11: 10,958,044 km (0.027 R)
• M12: 11,412,074 km (0.082 R)
• M13: 11,964,688 km (0.066 R)
• M14: 14,113,213 km (0.047 R)
• M15: 17,716,876 km (0.105 R)
• M16: 20,434,920 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 391.3

Radius: 10.1

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 7.73 AU - 10.05 AU

Year: 10149 Days

Day: 10.2 Hours

Environment

Temp: -174 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 63,884,666 km

• M1: 125,961 km (0.109 R)
• M2: 465,549 km (0.117 R)
• M3: 821,292 km (0.049 R)
• M4: 1,389,016 km (0.067 R)
• M5: 2,410,620 km (0.097 R)
• M6: 3,872,490 km (0.06 R)
• M7: 5,312,968 km (0.052 R)
• M8: 9,169,302 km (0.072 R)
• M9: 10,185,221 km (0.11 R)
• M10: 11,794,595 km (0.111 R)
• M11: 12,939,019 km (0.048 R)
• M12: 14,946,323 km (0.119 R)
• M13: 15,830,297 km (0.053 R)
• M14: 16,350,748 km (0.066 R)
• M15: 17,632,951 km (0.047 R)
• M16: 21,247,236 km (0.111 R)
• M17: 26,949,308 km (0.09 R)
• M18: 30,398,138 km (0.096 R)
• M19: 35,883,592 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 101.4

Radius: 12.2

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 8.94 AU - 10.96 AU

Year: 12017 Days

Day: 12 Hours

Environment

Temp: -184 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 63,884,666 km

• M1: 152,291 km (0.039 R)
• M2: 581,337 km (0.067 R)
• M3: 1,167,013 km (0.101 R)
• M4: 2,944,834 km (0.115 R)
• M5: 3,588,554 km (0.111 R)
• M6: 4,665,808 km (0.079 R)
• M7: 5,656,744 km (0.11 R)
• M8: 8,017,099 km (0.082 R)
• M9: 15,870,539 km (0.058 R)
• M10: 17,908,062 km (0.106 R)
• M11: 20,385,403 km (0.076 R)
• M12: 20,796,498 km (0.106 R)
• M13: 22,423,674 km (0.062 R)
• M14: 28,319,924 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 438.8

Radius: 6.5

Gravity: 10.39 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 10.36 AU - 16.86 AU

Year: 19225 Days

Day: 23.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 63,884,666 km

• M1: 81,082 km (0.112 R)
• M2: 332,556 km (0.08 R)
• M3: 714,928 km (0.114 R)
• M4: 1,030,729 km (0.061 R)
• M5: 1,481,468 km (0.08 R)
• M6: 2,151,965 km (0.105 R)
• M7: 2,394,613 km (0.118 R)
• M8: 3,032,947 km (0.113 R)
• M9: 3,365,354 km (0.101 R)
• M10: 3,983,343 km (0.073 R)
• M11: 4,288,073 km (0.083 R)
• M12: 5,048,180 km (0.086 R)
• M13: 7,225,577 km (0.096 R)
• M14: 8,494,765 km (0.115 R)
• M15: 10,016,475 km (0.093 R)
• M16: 11,345,951 km (0.113 R)
• M17: 15,583,311 km (0.092 R)
• M18: 17,122,224 km (0.027 R)
• M19: 17,603,032 km (0.074 R)
• M20: 20,054,492 km (0.106 R)
• M21: 22,916,898 km (0.118 R)
• M22: 23,599,064 km (0.053 R)
• M23: 30,592,615 km (0.036 R)
• M24: 33,364,813 km (0.112 R)
• M25: 34,114,598 km (0.055 R)
• M26: 34,747,845 km (0.047 R)
• M27: 35,131,714 km (0.03 R)
• M28: 37,762,691 km (0.082 R)
• M29: 39,402,882 km (0.079 R)
• M30: 40,805,362 km (0.1 R)
• M31: 44,156,953 km (0.105 R)
• M32: 45,822,875 km (0.09 R)
• M33: 47,060,498 km (0.036 R)
• M34: 49,764,180 km (0.11 R)
• M35: 53,075,230 km (0.096 R)
• M36: 54,439,862 km (0.083 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 546 - 12,566 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit