🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.66 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.39

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.17 AU - 1.47 AU

Year: 692 Days

Day: 13.5 Hours

Environment

Temp: -102 °C

Axial Tilt: 36.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,315,658 km

• M1: 81,830 km (0.1 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.3

Radius: 0.62

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 1.29 AU - 1.91 AU

Year: 924 Days

Day: 42.9 Hours

Environment

Temp: -107 °C

Axial Tilt: 20.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.01

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.68 AU - 2.02 AU

Year: 1149 Days

Day: 16.1 Hours

Environment

Temp: -119 °C

Axial Tilt: 10.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 77.7

Radius: 12

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 2.43 AU - 3.01 AU

Year: 2048 Days

Day: 10.1 Hours

Environment

Temp: -146 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 60,315,658 km

• M1: 150,795 km (0.093 R)
• M2: 563,236 km (0.116 R)
• M3: 1,108,969 km (0.094 R)
• M4: 3,487,426 km (0.108 R)
• M5: 4,080,282 km (0.111 R)
• M6: 4,576,199 km (0.118 R)
• M7: 5,008,686 km (0.048 R)
• M8: 6,411,914 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.5

Radius: 11.8

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 4.82 AU - 5.16 AU

Year: 5089 Days

Day: 8.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,315,658 km

• M1: 147,204 km (0.12 R)
• M2: 665,262 km (0.087 R)
• M3: 1,840,353 km (0.102 R)
• M4: 2,265,660 km (0.064 R)
• M5: 2,637,410 km (0.042 R)
• M6: 5,072,864 km (0.038 R)
• M7: 6,413,859 km (0.11 R)
• M8: 10,851,530 km (0.032 R)
• M9: 11,701,845 km (0.105 R)
• M10: 13,138,283 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907.9

Radius: 13.5

Gravity: 4.98 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 6.64 AU - 8.82 AU

Year: 9812 Days

Day: 9.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 60,315,658 km

• M1: 167,849 km (0.104 R)
• M2: 758,162 km (0.113 R)
• M3: 1,996,533 km (0.096 R)
• M4: 3,925,747 km (0.113 R)
• M5: 4,703,955 km (0.07 R)
• M6: 5,827,735 km (0.055 R)
• M7: 7,246,521 km (0.08 R)
• M8: 8,148,147 km (0.111 R)
• M9: 9,123,376 km (0.104 R)
• M10: 9,815,715 km (0.088 R)
• M11: 10,596,316 km (0.112 R)
• M12: 11,250,209 km (0.04 R)
• M13: 12,340,328 km (0.08 R)
• M14: 13,562,842 km (0.114 R)
• M15: 16,106,006 km (0.104 R)
• M16: 18,404,278 km (0.095 R)
• M17: 19,110,679 km (0.036 R)
• M18: 19,672,419 km (0.079 R)
• M19: 20,829,260 km (0.065 R)
• M20: 21,253,070 km (0.104 R)
• M21: 21,769,482 km (0.114 R)
• M22: 23,278,177 km (0.1 R)
• M23: 24,290,805 km (0.092 R)
• M24: 24,950,382 km (0.095 R)
• M25: 27,302,808 km (0.08 R)
• M26: 28,118,865 km (0.079 R)
• M27: 35,123,934 km (0.116 R)
• M28: 36,948,430 km (0.068 R)
• M29: 37,946,996 km (0.1 R)
• M30: 40,390,528 km (0.076 R)
• M31: 42,528,131 km (0.095 R)
• M32: 44,881,007 km (0.065 R)
• M33: 49,092,935 km (0.045 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 497.9

Radius: 3.6

Gravity: 38.42 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 9.41 AU - 9.61 AU

Year: 13390 Days

Day: 18.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 60,315,658 km

• M1: 44,730 km (0.11 R)
• M2: 204,201 km (0.059 R)
• M3: 360,082 km (0.112 R)
• M4: 475,871 km (0.06 R)
• M5: 1,097,450 km (0.111 R)
• M6: 1,347,129 km (0.105 R)
• M7: 1,648,868 km (0.115 R)
• M8: 2,100,803 km (0.082 R)
• M9: 2,444,878 km (0.104 R)
• M10: 2,630,529 km (0.117 R)
• M11: 3,571,500 km (0.114 R)
• M12: 3,837,933 km (0.101 R)
• M13: 3,976,012 km (0.119 R)
• M14: 4,972,334 km (0.055 R)
• M15: 5,406,766 km (0.117 R)
• M16: 6,049,588 km (0.09 R)
• M17: 6,236,885 km (0.043 R)
• M18: 7,788,664 km (0.089 R)
• M19: 8,891,200 km (0.114 R)
• M20: 9,330,270 km (0.049 R)
• M21: 14,947,670 km (0.11 R)
• M22: 16,858,483 km (0.115 R)
• M23: 17,304,285 km (0.096 R)
• M24: 20,985,739 km (0.09 R)
• M25: 23,008,003 km (0.092 R)
• M26: 25,252,869 km (0.086 R)
• M27: 27,130,471 km (0.094 R)
• M28: 29,418,272 km (0.115 R)
• M29: 34,849,273 km (0.112 R)
• M30: 35,089,078 km (0.105 R)
• M31: 39,594,966 km (0.091 R)
• M32: 41,715,665 km (0.107 R)
• M33: 43,216,730 km (0.11 R)
• M34: 46,761,452 km (0.119 R)
• M35: 48,678,998 km (0.027 R)
• M36: 48,828,745 km (0.075 R)
• M37: 50,648,453 km (0.114 R)
• M38: 51,575,063 km (0.116 R)
• M39: 51,886,376 km (0.072 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 433.9

Radius: 3.6

Gravity: 33.48 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 10.14 AU - 12.8 AU

Year: 17736 Days

Day: 15 Hours

Environment

Temp: -218 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,315,658 km

• M1: 45,478 km (0.025 R)
• M2: 240,105 km (0.112 R)
• M3: 451,636 km (0.045 R)
• M4: 1,104,032 km (0.114 R)
• M5: 1,425,369 km (0.098 R)
• M6: 1,623,735 km (0.086 R)
• M7: 1,946,567 km (0.107 R)
• M8: 2,310,689 km (0.034 R)
• M9: 3,565,216 km (0.091 R)
• M10: 4,803,438 km (0.062 R)
• M11: 5,500,415 km (0.098 R)
• M12: 6,751,950 km (0.095 R)
• M13: 8,421,911 km (0.102 R)
• M14: 9,222,410 km (0.097 R)
• M15: 11,622,857 km (0.107 R)
• M16: 14,478,680 km (0.053 R)
• M17: 16,596,687 km (0.054 R)
• M18: 17,769,235 km (0.104 R)
• M19: 25,573,457 km (0.049 R)
• M20: 41,680,360 km (0.085 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 500 - 18,856 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit