🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.3

Radius: 11.4

Gravity: 6.27 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.76 AU - 1.22 AU

Year: 646 Days

Day: 8.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 50,084,055 km

• M1: 141,819 km (0.113 R)
• M2: 600,486 km (0.085 R)
• M3: 1,047,484 km (0.088 R)
• M4: 1,464,563 km (0.073 R)
• M5: 1,904,231 km (0.072 R)
• M6: 2,258,778 km (0.04 R)
• M7: 2,658,055 km (0.074 R)
• M8: 3,243,132 km (0.066 R)
• M9: 3,768,670 km (0.066 R)
• M10: 4,622,574 km (0.117 R)
• M11: 5,416,640 km (0.039 R)
• M12: 6,040,762 km (0.103 R)
• M13: 6,462,478 km (0.092 R)
• M14: 7,142,850 km (0.073 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448.3

Radius: 8.8

Gravity: 5.79 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.22 AU - 1.56 AU

Year: 1075 Days

Day: 10.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,084,055 km

• M1: 109,506 km (0.086 R)
• M2: 521,947 km (0.032 R)
• M3: 890,855 km (0.114 R)
• M4: 1,639,892 km (0.064 R)
• M5: 2,379,803 km (0.042 R)
• M6: 2,734,799 km (0.103 R)
• M7: 3,111,636 km (0.048 R)
• M8: 3,667,990 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.5

Radius: 9.7

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.81 AU - 2.81 AU

Year: 2303 Days

Day: 6.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 50,084,055 km

• M1: 120,725 km (0.089 R)
• M2: 473,776 km (0.105 R)
• M3: 834,457 km (0.028 R)
• M4: 2,177,696 km (0.103 R)
• M5: 4,041,386 km (0.076 R)
• M6: 4,455,773 km (0.097 R)
• M7: 5,507,595 km (0.093 R)
• M8: 8,121,220 km (0.115 R)
• M9: 8,919,923 km (0.072 R)
• M10: 9,946,314 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610.8

Radius: 8

Gravity: 9.54 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 3.63 AU - 4.11 AU

Year: 4994 Days

Day: 6 Hours

Environment

Temp: -207 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 50,084,055 km

• M1: 99,483 km (0.045 R)
• M2: 371,302 km (0.09 R)
• M3: 1,168,210 km (0.1 R)
• M4: 1,662,631 km (0.096 R)
• M5: 2,022,114 km (0.117 R)
• M6: 2,701,887 km (0.077 R)
• M7: 2,972,061 km (0.075 R)
• M8: 3,320,325 km (0.105 R)
• M9: 3,938,613 km (0.075 R)
• M10: 5,020,505 km (0.105 R)
• M11: 5,487,549 km (0.069 R)
• M12: 6,636,610 km (0.075 R)
• M13: 9,402,077 km (0.034 R)
• M14: 11,266,216 km (0.119 R)
• M15: 11,732,662 km (0.09 R)
• M16: 12,309,362 km (0.062 R)
• M17: 13,519,459 km (0.118 R)
• M18: 15,709,422 km (0.075 R)
• M19: 17,009,727 km (0.1 R)
• M20: 21,409,998 km (0.092 R)
• M21: 22,343,639 km (0.077 R)
• M22: 25,946,404 km (0.111 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 45.2

Radius: 5

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 6.66 AU - 7.64 AU

Year: 12542 Days

Day: 20.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 50,084,055 km

• M1: 62,233 km (0.104 R)
• M2: 279,299 km (0.101 R)
• M3: 1,364,183 km (0.109 R)
• M4: 2,028,398 km (0.091 R)
• M5: 2,515,638 km (0.107 R)
• M6: 4,113,941 km (0.1 R)
• M7: 4,355,243 km (0.104 R)
• M8: 4,914,440 km (0.091 R)
• M9: 8,552,211 km (0.098 R)
• M10: 9,884,679 km (0.117 R)
• M11: 12,312,802 km (0.053 R)
• M12: 16,329,804 km (0.082 R)
• M13: 16,823,777 km (0.109 R)
• M14: 21,400,275 km (0.081 R)
• M15: 21,793,418 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 289.5

Radius: 4.9

Gravity: 12.06 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 6.9 AU - 10.22 AU

Year: 16429 Days

Day: 24.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 50,084,055 km

• M1: 62,831 km (0.079 R)
• M2: 343,028 km (0.101 R)
• M3: 615,745 km (0.096 R)
• M4: 805,585 km (0.119 R)
• M5: 1,013,077 km (0.044 R)
• M6: 1,522,458 km (0.09 R)
• M7: 1,715,439 km (0.115 R)
• M8: 1,958,535 km (0.055 R)
• M9: 2,169,169 km (0.119 R)
• M10: 3,408,587 km (0.099 R)
• M11: 3,714,366 km (0.092 R)
• M12: 4,528,776 km (0.111 R)
• M13: 4,741,953 km (0.067 R)
• M14: 5,558,608 km (0.11 R)
• M15: 9,227,645 km (0.118 R)
• M16: 11,028,804 km (0.107 R)
• M17: 12,509,673 km (0.071 R)
• M18: 13,235,821 km (0.094 R)
• M19: 15,582,563 km (0.074 R)
• M20: 17,663,918 km (0.044 R)
• M21: 20,167,588 km (0.094 R)
• M22: 22,898,198 km (0.117 R)
• M23: 23,799,525 km (0.064 R)
• M24: 34,034,264 km (0.093 R)
• M25: 37,385,256 km (0.073 R)
• M26: 37,756,857 km (0.085 R)
• M27: 39,651,963 km (0.12 R)
• M28: 40,949,874 km (0.091 R)
• M29: 42,008,428 km (0.091 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: 325 - 16,090 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit