🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.72

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.49 AU - 0.55 AU

Year: 242 Days

Day: 47.3 Hours

Environment

Temp: -114 °C

Axial Tilt: 49.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 55,062,276 km

• M1: 40,391 km (0.091 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.78

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.43 AU - 0.67 AU

Year: 263 Days

Day: 45.8 Hours

Environment

Temp: -119 °C

Axial Tilt: 45.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 55,062,276 km

• M1: 289,173 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 364.3

Radius: 13.8

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.11 AU - 1.41 AU

Year: 913 Days

Day: 8.3 Hours

Environment

Temp: -163 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,062,276 km

• M1: 171,738 km (0.12 R)
• M2: 642,822 km (0.087 R)
• M3: 1,331,571 km (0.077 R)
• M4: 1,877,603 km (0.048 R)
• M5: 2,604,649 km (0.091 R)
• M6: 3,230,566 km (0.087 R)
• M7: 4,296,152 km (0.106 R)
• M8: 4,902,621 km (0.103 R)
• M9: 5,403,625 km (0.09 R)
• M10: 6,488,957 km (0.1 R)
• M11: 7,623,956 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 749.9

Radius: 13.7

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.65 AU - 2.17 AU

Year: 1704 Days

Day: 14.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,062,276 km

• M1: 170,392 km (0.112 R)
• M2: 792,420 km (0.08 R)
• M3: 1,251,386 km (0.117 R)
• M4: 2,150,469 km (0.089 R)
• M5: 2,587,744 km (0.071 R)
• M6: 3,130,485 km (0.083 R)
• M7: 3,749,072 km (0.073 R)
• M8: 5,039,204 km (0.05 R)
• M9: 5,751,739 km (0.052 R)
• M10: 6,581,409 km (0.099 R)
• M11: 7,715,211 km (0.114 R)
• M12: 8,756,263 km (0.109 R)
• M13: 9,687,958 km (0.117 R)
• M14: 12,404,955 km (0.084 R)
• M15: 13,166,857 km (0.099 R)
• M16: 13,959,875 km (0.065 R)
• M17: 14,740,177 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847.6

Radius: 12.2

Gravity: 5.69 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.88 AU - 2.6 AU

Year: 2165 Days

Day: 14.2 Hours

Environment

Temp: -186 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,062,276 km

• M1: 151,991 km (0.094 R)
• M2: 573,259 km (0.041 R)
• M3: 1,046,437 km (0.062 R)
• M4: 1,447,958 km (0.113 R)
• M5: 1,919,490 km (0.071 R)
• M6: 2,937,953 km (0.096 R)
• M7: 3,452,868 km (0.047 R)
• M8: 4,066,818 km (0.08 R)
• M9: 4,622,425 km (0.116 R)
• M10: 5,181,621 km (0.029 R)
• M11: 5,735,582 km (0.111 R)
• M12: 6,599,211 km (0.099 R)
• M13: 7,163,644 km (0.085 R)
• M14: 7,821,575 km (0.091 R)
• M15: 9,018,657 km (0.079 R)
• M16: 10,521,368 km (0.106 R)
• M17: 12,226,634 km (0.108 R)
• M18: 13,254,970 km (0.073 R)
• M19: 14,340,153 km (0.114 R)
• M20: 15,778,686 km (0.097 R)
• M21: 16,686,894 km (0.107 R)
• M22: 17,522,997 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32.6

Radius: 11.4

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 5.1 AU - 6.46 AU

Year: 8972 Days

Day: 7.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,062,276 km

• M1: 141,819 km (0.041 R)
• M2: 3,397,966 km (0.084 R)
• M3: 4,242,895 km (0.07 R)
• M4: 5,426,513 km (0.12 R)
• M5: 6,220,429 km (0.058 R)
• M6: 7,684,394 km (0.083 R)
• M7: 8,622,522 km (0.074 R)
• M8: 11,019,828 km (0.116 R)
• M9: 13,276,362 km (0.049 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 811.4

Radius: 3

Gravity: 90.16 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 9.15 AU - 10.19 AU

Year: 19416 Days

Day: 23.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 55,062,276 km

• M1: 37,549 km (0.071 R)
• M2: 272,867 km (0.113 R)
• M3: 460,163 km (0.106 R)
• M4: 767,886 km (0.095 R)
• M5: 1,183,319 km (0.11 R)
• M6: 1,590,225 km (0.119 R)
• M7: 2,479,884 km (0.109 R)
• M8: 3,718,255 km (0.113 R)
• M9: 9,899,041 km (0.078 R)
• M10: 10,813,532 km (0.095 R)
• M11: 11,130,530 km (0.097 R)
• M12: 11,983,388 km (0.034 R)
• M13: 12,460,306 km (0.101 R)
• M14: 12,949,790 km (0.107 R)
• M15: 14,266,850 km (0.102 R)
• M16: 15,994,705 km (0.088 R)
• M17: 17,421,570 km (0.066 R)
• M18: 18,388,869 km (0.059 R)
• M19: 24,193,416 km (0.059 R)
• M20: 25,395,435 km (0.061 R)
• M21: 28,393,975 km (0.097 R)
• M22: 30,102,233 km (0.102 R)
• M23: 41,193,419 km (0.041 R)
• M24: 50,922,068 km (0.05 R)
• M25: 54,723,350 km (0.097 R)
• M26: 56,219,777 km (0.096 R)
• M27: 57,743,282 km (0.109 R)
• M28: 61,471,411 km (0.087 R)
• M29: 67,040,640 km (0.097 R)
• M30: 78,695,212 km (0.07 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 267.9

Radius: 3.4

Gravity: 23.17 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 7.43 AU - 12.09 AU

Year: 19687 Days

Day: 16.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 55,062,276 km

• M1: 45,478 km (0.112 R)
• M2: 217,067 km (0.098 R)
• M3: 385,065 km (0.106 R)
• M4: 523,293 km (0.118 R)
• M5: 933,341 km (0.116 R)
• M6: 1,263,055 km (0.072 R)
• M7: 2,019,571 km (0.104 R)
• M8: 2,441,886 km (0.064 R)
• M9: 2,587,894 km (0.035 R)
• M10: 2,784,316 km (0.119 R)
• M11: 4,089,557 km (0.104 R)
• M12: 4,206,543 km (0.119 R)
• M13: 4,478,063 km (0.118 R)
• M14: 5,293,670 km (0.097 R)
• M15: 6,555,079 km (0.076 R)
• M16: 8,003,785 km (0.091 R)
• M17: 8,948,795 km (0.083 R)
• M18: 9,246,196 km (0.117 R)
• M19: 9,397,439 km (0.074 R)
• M20: 9,756,474 km (0.087 R)
• M21: 15,932,323 km (0.079 R)
• M22: 17,266,137 km (0.095 R)
• M23: 19,157,803 km (0.073 R)
• M24: 21,534,015 km (0.099 R)
• M25: 22,067,631 km (0.104 R)
• M26: 24,194,763 km (0.025 R)
• M27: 25,356,989 km (0.12 R)
• M28: 28,637,221 km (0.036 R)
• M29: 29,717,467 km (0.118 R)
• M30: 30,824,641 km (0.08 R)
• M31: 35,038,065 km (0.061 R)
• M32: 36,023,766 km (0.11 R)
• M33: 36,523,572 km (0.096 R)
• M34: 37,154,726 km (0.075 R)
• M35: 40,419,849 km (0.109 R)
• M36: 43,165,718 km (0.092 R)
• M37: 46,917,782 km (0.109 R)
• M38: 47,215,033 km (0.102 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: 352 - 16,649 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit