🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.4 AU - 0.66 AU

Year: 249 Days

Day: 41.4 Hours

Environment

Temp: -123 °C

Axial Tilt: 1.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719.4

Radius: 11.4

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.94 AU - 1.12 AU

Year: 675 Days

Day: 11.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 84,780,721 km

• M1: 141,819 km (0.113 R)
• M2: 605,273 km (0.117 R)
• M3: 992,133 km (0.094 R)
• M4: 1,384,379 km (0.102 R)
• M5: 2,097,661 km (0.084 R)
• M6: 2,692,313 km (0.09 R)
• M7: 3,422,799 km (0.091 R)
• M8: 4,343,125 km (0.081 R)
• M9: 4,861,781 km (0.098 R)
• M10: 5,623,384 km (0.052 R)
• M11: 6,902,147 km (0.057 R)
• M12: 7,272,401 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.2

Radius: 11.2

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.2 AU - 1.86 AU

Year: 1222 Days

Day: 14.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 82.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 84,780,721 km

• M1: 140,024 km (0.095 R)
• M2: 488,287 km (0.057 R)
• M3: 990,039 km (0.068 R)
• M4: 1,368,970 km (0.087 R)
• M5: 2,662,992 km (0.118 R)
• M6: 3,322,718 km (0.094 R)
• M7: 3,705,988 km (0.113 R)
• M8: 4,384,414 km (0.101 R)
• M9: 5,378,941 km (0.061 R)
• M10: 6,434,504 km (0.113 R)
• M11: 7,099,915 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518.9

Radius: 9.5

Gravity: 5.75 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 2.03 AU - 2.81 AU

Year: 2431 Days

Day: 12.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 84,780,721 km

• M1: 118,182 km (0.119 R)
• M2: 725,550 km (0.116 R)
• M3: 1,266,047 km (0.116 R)
• M4: 1,975,589 km (0.033 R)
• M5: 2,333,727 km (0.055 R)
• M6: 3,038,632 km (0.076 R)
• M7: 3,589,152 km (0.118 R)
• M8: 4,569,317 km (0.12 R)
• M9: 5,088,272 km (0.072 R)
• M10: 6,347,737 km (0.116 R)
• M11: 7,248,017 km (0.077 R)
• M12: 7,595,682 km (0.117 R)
• M13: 8,169,241 km (0.058 R)
• M14: 10,533,784 km (0.096 R)
• M15: 10,830,287 km (0.04 R)
• M16: 11,401,303 km (0.055 R)
• M17: 12,645,059 km (0.109 R)
• M18: 13,976,929 km (0.091 R)
• M19: 14,335,366 km (0.119 R)
• M20: 15,305,358 km (0.118 R)
• M21: 15,830,746 km (0.083 R)
• M22: 16,566,319 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 835

Radius: 14.2

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 5 AU - 5.3 AU

Year: 7546 Days

Day: 10.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 84,780,721 km

• M1: 176,675 km (0.096 R)
• M2: 677,529 km (0.104 R)
• M3: 1,155,045 km (0.092 R)
• M4: 1,852,470 km (0.063 R)
• M5: 3,026,066 km (0.073 R)
• M6: 3,560,429 km (0.032 R)
• M7: 6,648,578 km (0.08 R)
• M8: 7,401,803 km (0.112 R)
• M9: 8,044,925 km (0.098 R)
• M10: 9,912,056 km (0.096 R)
• M11: 10,594,372 km (0.091 R)
• M12: 11,360,014 km (0.105 R)
• M13: 11,837,081 km (0.086 R)
• M14: 13,290,724 km (0.075 R)
• M15: 15,303,413 km (0.07 R)
• M16: 17,026,781 km (0.086 R)
• M17: 17,582,238 km (0.039 R)
• M18: 18,583,496 km (0.085 R)
• M19: 20,002,582 km (0.092 R)
• M20: 20,777,947 km (0.106 R)
• M21: 26,315,761 km (0.107 R)
• M22: 30,782,155 km (0.111 R)
• M23: 31,296,323 km (0.112 R)
• M24: 32,766,272 km (0.044 R)
• M25: 33,518,301 km (0.085 R)
• M26: 35,280,563 km (0.086 R)
• M27: 37,336,038 km (0.115 R)
• M28: 42,314,057 km (0.106 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 131.7

Radius: 3.5

Gravity: 10.75 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 7.28 AU - 9.16 AU

Year: 15217 Days

Day: 20.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 84,780,721 km

• M1: 43,533 km (0.052 R)
• M2: 201,808 km (0.066 R)
• M3: 561,590 km (0.025 R)
• M4: 889,808 km (0.06 R)
• M5: 1,219,073 km (0.111 R)
• M6: 1,880,296 km (0.112 R)
• M7: 4,162,710 km (0.113 R)
• M8: 4,531,320 km (0.114 R)
• M9: 4,723,702 km (0.073 R)
• M10: 7,102,608 km (0.106 R)
• M11: 7,324,761 km (0.078 R)
• M12: 7,666,592 km (0.081 R)
• M13: 8,968,392 km (0.087 R)
• M14: 10,649,124 km (0.107 R)
• M15: 11,742,086 km (0.12 R)
• M16: 12,962,356 km (0.109 R)
• M17: 14,440,682 km (0.083 R)
• M18: 26,251,434 km (0.099 R)
• M19: 29,733,474 km (0.051 R)
• M20: 30,020,702 km (0.063 R)
• M21: 35,621,796 km (0.091 R)
• M22: 36,271,949 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 841.8

Radius: 7.4

Gravity: 15.37 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 8.49 AU - 12.03 AU

Year: 21220 Days

Day: 22.2 Hours

Environment

Temp: -238 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 84,780,721 km

• M1: 92,003 km (0.052 R)
• M2: 538,104 km (0.09 R)
• M3: 876,344 km (0.115 R)
• M4: 1,219,372 km (0.106 R)
• M5: 1,512,883 km (0.107 R)
• M6: 2,178,893 km (0.094 R)
• M7: 2,764,269 km (0.079 R)
• M8: 3,275,894 km (0.091 R)
• M9: 3,630,441 km (0.104 R)
• M10: 4,312,607 km (0.117 R)
• M11: 5,115,649 km (0.104 R)
• M12: 5,431,151 km (0.114 R)
• M13: 6,547,450 km (0.084 R)
• M14: 8,772,868 km (0.105 R)
• M15: 9,341,340 km (0.119 R)
• M16: 10,178,041 km (0.037 R)
• M17: 10,426,074 km (0.079 R)
• M18: 11,999,993 km (0.083 R)
• M19: 19,220,334 km (0.116 R)
• M20: 21,776,364 km (0.108 R)
• M21: 24,439,655 km (0.045 R)
• M22: 28,277,438 km (0.117 R)
• M23: 28,645,150 km (0.099 R)
• M24: 32,498,791 km (0.083 R)
• M25: 34,409,904 km (0.111 R)
• M26: 44,766,564 km (0.06 R)
• M27: 46,616,043 km (0.072 R)
• M28: 51,735,282 km (0.101 R)
• M29: 55,476,126 km (0.106 R)
• M30: 59,794,867 km (0.081 R)
• M31: 64,968,710 km (0.04 R)
• M32: 72,472,988 km (0.083 R)
• M33: 73,392,117 km (0.083 R)
• M34: 76,670,106 km (0.084 R)
• M35: 76,907,966 km (0.077 R)
• M36: 83,516,751 km (0.093 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 287 - 14,185 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit