🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.68 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.35 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.87

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.16 AU - 1.54 AU

Year: 576 Days

Day: 25.6 Hours

Environment

Temp: -20 °C

Axial Tilt: 6.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.56

Radius: 1.46

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 2.42 AU - 2.78 AU

Year: 1539 Days

Day: 22.7 Hours

Environment

Temp: -93 °C

Axial Tilt: 38 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.29

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 2.61 AU - 2.73 AU

Year: 1602 Days

Day: 36.8 Hours

Environment

Temp: -97 °C

Axial Tilt: 47.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.92 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Ice Giant

Semi-Major Axis: 13.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 909.7

Radius: 4.2

Gravity: 51.57 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 10.09 AU - 16.25 AU

Year: 17545 Days

Day: 15.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 80,167,970 km

• M1: 52,210 km (0.11 R)
• M2: 205,398 km (0.061 R)
• M3: 476,918 km (0.112 R)
• M4: 781,948 km (0.036 R)
• M5: 924,664 km (0.114 R)
• M6: 2,079,111 km (0.112 R)
• M7: 2,754,845 km (0.04 R)
• M8: 3,142,902 km (0.098 R)
• M9: 3,655,424 km (0.03 R)
• M10: 3,869,199 km (0.046 R)
• M11: 4,188,890 km (0.057 R)
• M12: 4,701,113 km (0.095 R)
• M13: 5,140,183 km (0.102 R)
• M14: 6,227,011 km (0.102 R)
• M15: 6,847,095 km (0.077 R)
• M16: 7,852,841 km (0.09 R)
• M17: 9,626,025 km (0.102 R)
• M18: 19,478,391 km (0.078 R)
• M19: 20,795,899 km (0.074 R)
• M20: 25,432,236 km (0.096 R)
• M21: 27,813,685 km (0.112 R)
• M22: 30,216,077 km (0.108 R)
• M23: 30,962,870 km (0.061 R)
• M24: 39,119,694 km (0.049 R)
• M25: 46,757,114 km (0.109 R)
• M26: 48,259,974 km (0.025 R)
• M27: 59,886,870 km (0.087 R)
• M28: 69,307,646 km (0.076 R)
• M29: 72,138,487 km (0.108 R)

Planet 5 - Ice Giant

Semi-Major Axis: 13.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 49.1

Radius: 5.3

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 10.62 AU - 16.12 AU

Year: 17946 Days

Day: 19 Hours

Environment

Temp: -183 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 80,167,970 km

• M1: 116,537 km (0.101 R)
• M2: 386,860 km (0.047 R)
• M3: 709,991 km (0.07 R)
• M4: 906,563 km (0.061 R)
• M5: 1,564,046 km (0.111 R)
• M6: 2,811,243 km (0.054 R)
• M7: 3,310,451 km (0.065 R)
• M8: 4,583,679 km (0.079 R)
• M9: 5,357,399 km (0.098 R)
• M10: 5,672,602 km (0.106 R)
• M11: 6,890,328 km (0.06 R)
• M12: 8,462,303 km (0.105 R)
• M13: 9,331,616 km (0.112 R)
• M14: 12,393,585 km (0.033 R)
• M15: 13,355,799 km (0.076 R)
• M16: 20,401,858 km (0.057 R)
• M17: 20,888,351 km (0.11 R)

Planet 6 - Ice Giant

Semi-Major Axis: 14.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 852

Radius: 3.8

Gravity: 59 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 11.56 AU - 16.6 AU

Year: 19394 Days

Day: 18.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 80,167,970 km

• M1: 47,273 km (0.074 R)
• M2: 317,596 km (0.107 R)
• M3: 923,916 km (0.103 R)
• M4: 1,538,315 km (0.075 R)
• M5: 1,750,145 km (0.092 R)
• M6: 2,320,562 km (0.094 R)
• M7: 2,952,763 km (0.115 R)
• M8: 3,571,500 km (0.119 R)
• M9: 5,291,277 km (0.078 R)
• M10: 6,596,817 km (0.076 R)
• M11: 7,446,084 km (0.063 R)
• M12: 7,744,682 km (0.086 R)
• M13: 8,472,326 km (0.095 R)
• M14: 10,002,413 km (0.109 R)
• M15: 10,550,839 km (0.116 R)
• M16: 13,818,355 km (0.102 R)
• M17: 13,967,504 km (0.11 R)
• M18: 14,345,089 km (0.101 R)
• M19: 15,041,767 km (0.089 R)
• M20: 16,005,476 km (0.069 R)
• M21: 16,502,440 km (0.074 R)
• M22: 16,670,289 km (0.083 R)
• M23: 17,353,353 km (0.116 R)
• M24: 18,775,131 km (0.086 R)
• M25: 20,659,017 km (0.042 R)
• M26: 27,883,547 km (0.091 R)
• M27: 30,076,951 km (0.053 R)
• M28: 38,952,892 km (0.057 R)
• M29: 44,223,225 km (0.119 R)
• M30: 45,200,099 km (0.027 R)
• M31: 49,599,473 km (0.056 R)
• M32: 51,008,536 km (0.094 R)
• M33: 52,263,063 km (0.089 R)
• M34: 54,461,404 km (0.073 R)
• M35: 55,395,194 km (0.102 R)
• M36: 59,434,187 km (0.103 R)
• M37: 62,436,317 km (0.118 R)
• M38: 67,661,771 km (0.083 R)
• M39: 74,079,669 km (0.113 R)
• M40: 74,536,690 km (0.098 R)
• M41: 76,150,851 km (0.108 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: 434 - 20,179 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit