🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.91

Radius: 1.3

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.41 AU - 0.65 AU

Year: 253 Days

Day: 41.4 Hours

Environment

Temp: -110 °C

Axial Tilt: 46.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.29

Radius: 1.39

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.48 AU - 0.78 AU

Year: 328 Days

Day: 42.8 Hours

Environment

Temp: -125 °C

Axial Tilt: 28.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 0.94 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381.4

Radius: 14.6

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.98 AU - 1.52 AU

Year: 917 Days

Day: 14 Hours

Environment

Temp: -178 °C

Axial Tilt: 88.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,159,173 km

• M1: 184,305 km (0.08 R)
• M2: 679,324 km (0.071 R)
• M3: 1,149,360 km (0.081 R)
• M4: 1,891,216 km (0.079 R)
• M5: 2,414,061 km (0.119 R)
• M6: 2,974,305 km (0.062 R)
• M7: 3,553,997 km (0.063 R)
• M8: 4,345,968 km (0.098 R)
• M9: 5,131,057 km (0.06 R)
• M10: 6,204,123 km (0.071 R)
• M11: 7,947,387 km (0.042 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.7

Radius: 9

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.25 AU - 1.71 AU

Year: 1181 Days

Day: 13.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,159,173 km

• M1: 111,899 km (0.079 R)
• M2: 488,287 km (0.114 R)
• M3: 1,348,625 km (0.062 R)
• M4: 1,784,104 km (0.112 R)
• M5: 2,183,531 km (0.043 R)
• M6: 2,582,658 km (0.064 R)
• M7: 3,676,517 km (0.101 R)
• M8: 4,178,418 km (0.108 R)
• M9: 4,601,631 km (0.104 R)
• M10: 5,299,654 km (0.099 R)
• M11: 5,634,005 km (0.108 R)
• M12: 6,345,343 km (0.051 R)
• M13: 9,143,123 km (0.115 R)
• M14: 9,712,193 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.7

Radius: 10

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.85 AU - 2.85 AU

Year: 2363 Days

Day: 14.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,159,173 km

• M1: 126,111 km (0.045 R)
• M2: 496,665 km (0.096 R)
• M3: 1,004,849 km (0.091 R)
• M4: 1,414,448 km (0.117 R)
• M5: 1,781,112 km (0.088 R)
• M6: 2,165,429 km (0.074 R)
• M7: 2,515,039 km (0.096 R)
• M8: 2,846,548 km (0.086 R)
• M9: 3,298,633 km (0.099 R)
• M10: 3,697,611 km (0.108 R)
• M11: 4,057,543 km (0.114 R)
• M12: 5,238,319 km (0.108 R)
• M13: 6,222,673 km (0.118 R)
• M14: 7,512,955 km (0.07 R)
• M15: 7,924,349 km (0.116 R)
• M16: 8,350,703 km (0.082 R)
• M17: 8,912,742 km (0.053 R)
• M18: 10,785,707 km (0.112 R)
• M19: 11,560,325 km (0.114 R)
• M20: 12,985,095 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 229.4

Radius: 15

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 3.54 AU - 4.32 AU

Year: 5111 Days

Day: 5.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,159,173 km

• M1: 189,840 km (0.108 R)
• M2: 690,394 km (0.066 R)
• M3: 2,007,753 km (0.067 R)
• M4: 3,544,722 km (0.115 R)
• M5: 5,335,857 km (0.058 R)
• M6: 6,059,462 km (0.096 R)
• M7: 6,587,093 km (0.036 R)
• M8: 10,234,140 km (0.088 R)
• M9: 10,784,211 km (0.1 R)
• M10: 11,943,894 km (0.089 R)
• M11: 15,256,888 km (0.112 R)
• M12: 19,855,976 km (0.116 R)
• M13: 20,589,753 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 737.7

Radius: 7.4

Gravity: 13.47 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 5.4 AU - 6.92 AU

Year: 10030 Days

Day: 19 Hours

Environment

Temp: -226 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 57,159,173 km

• M1: 92,003 km (0.072 R)
• M2: 608,115 km (0.081 R)
• M3: 897,288 km (0.043 R)
• M4: 1,159,084 km (0.091 R)
• M5: 2,461,783 km (0.052 R)
• M6: 2,809,598 km (0.098 R)
• M7: 3,453,916 km (0.079 R)
• M8: 3,784,677 km (0.093 R)
• M9: 4,081,030 km (0.114 R)
• M10: 6,571,834 km (0.084 R)
• M11: 7,283,771 km (0.089 R)
• M12: 7,872,289 km (0.118 R)
• M13: 8,860,682 km (0.083 R)
• M14: 9,828,730 km (0.11 R)
• M15: 10,865,443 km (0.102 R)
• M16: 15,610,388 km (0.116 R)
• M17: 16,093,889 km (0.095 R)
• M18: 16,873,742 km (0.103 R)
• M19: 18,585,441 km (0.114 R)
• M20: 19,922,696 km (0.101 R)
• M21: 21,747,042 km (0.109 R)
• M22: 22,699,682 km (0.073 R)
• M23: 23,409,823 km (0.109 R)
• M24: 23,952,115 km (0.105 R)
• M25: 24,967,885 km (0.032 R)
• M26: 25,820,293 km (0.059 R)
• M27: 27,984,974 km (0.1 R)
• M28: 29,633,393 km (0.051 R)
• M29: 32,225,925 km (0.107 R)
• M30: 33,691,385 km (0.076 R)
• M31: 38,478,966 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 415.6

Radius: 3.3

Gravity: 38.16 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 8.26 AU - 9.06 AU

Year: 16718 Days

Day: 17.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 57,159,173 km

• M1: 41,887 km (0.1 R)
• M2: 144,811 km (0.119 R)
• M3: 593,006 km (0.106 R)
• M4: 745,147 km (0.12 R)
• M5: 965,953 km (0.054 R)
• M6: 2,469,113 km (0.106 R)
• M7: 3,200,048 km (0.066 R)
• M8: 3,377,322 km (0.119 R)
• M9: 3,534,549 km (0.099 R)
• M10: 3,669,187 km (0.048 R)
• M11: 4,939,871 km (0.103 R)
• M12: 5,528,539 km (0.083 R)
• M13: 5,783,902 km (0.049 R)
• M14: 6,123,938 km (0.115 R)
• M15: 7,934,073 km (0.086 R)
• M16: 8,544,582 km (0.052 R)
• M17: 8,985,147 km (0.12 R)
• M18: 9,544,045 km (0.072 R)
• M19: 10,452,702 km (0.051 R)
• M20: 11,243,178 km (0.1 R)
• M21: 12,316,991 km (0.077 R)
• M22: 15,225,772 km (0.092 R)
• M23: 15,945,338 km (0.08 R)
• M24: 19,632,626 km (0.087 R)
• M25: 19,970,269 km (0.092 R)
• M26: 20,311,950 km (0.116 R)
• M27: 20,919,168 km (0.091 R)
• M28: 22,078,851 km (0.106 R)
• M29: 22,999,476 km (0.086 R)
• M30: 25,412,639 km (0.103 R)
• M31: 26,938,537 km (0.109 R)
• M32: 30,395,894 km (0.06 R)
• M33: 31,881,101 km (0.076 R)
• M34: 34,503,402 km (0.101 R)
• M35: 36,752,906 km (0.064 R)
• M36: 38,700,670 km (0.116 R)
• M37: 53,308,004 km (0.104 R)
• M38: 54,627,158 km (0.115 R)
• M39: 56,476,487 km (0.06 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 352 - 14,646 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit