🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.59 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836.4

Radius: 11.9

Gravity: 5.91 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.04 AU - 1.32 AU

Year: 855 Days

Day: 10.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 54,078,875 km

• M1: 148,102 km (0.064 R)
• M2: 564,283 km (0.084 R)
• M3: 943,065 km (0.042 R)
• M4: 1,386,922 km (0.086 R)
• M5: 1,849,478 km (0.072 R)
• M6: 2,231,701 km (0.053 R)
• M7: 2,862,406 km (0.09 R)
• M8: 3,421,453 km (0.093 R)
• M9: 3,818,635 km (0.088 R)
• M10: 4,263,091 km (0.067 R)
• M11: 4,994,774 km (0.096 R)
• M12: 5,430,104 km (0.081 R)
• M13: 6,442,432 km (0.071 R)
• M14: 8,050,759 km (0.076 R)
• M15: 8,704,651 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 787.4

Radius: 15

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.13 AU - 1.35 AU

Year: 921 Days

Day: 5.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 54,078,875 km

• M1: 189,391 km (0.073 R)
• M2: 980,165 km (0.081 R)
• M3: 2,336,120 km (0.096 R)
• M4: 2,909,080 km (0.118 R)
• M5: 3,891,789 km (0.058 R)
• M6: 4,669,249 km (0.067 R)
• M7: 6,425,378 km (0.109 R)
• M8: 6,943,735 km (0.071 R)
• M9: 9,107,818 km (0.082 R)
• M10: 10,148,420 km (0.047 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 434.7

Radius: 14.4

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.23 AU - 1.47 AU

Year: 1046 Days

Day: 14.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 54,078,875 km

• M1: 179,069 km (0.097 R)
• M2: 644,318 km (0.115 R)
• M3: 1,152,053 km (0.103 R)
• M4: 1,745,059 km (0.095 R)
• M5: 2,410,171 km (0.116 R)
• M6: 2,887,538 km (0.081 R)
• M7: 3,483,686 km (0.074 R)
• M8: 4,022,088 km (0.088 R)
• M9: 5,305,339 km (0.077 R)
• M10: 6,042,108 km (0.072 R)
• M11: 6,520,672 km (0.111 R)
• M12: 8,086,214 km (0.113 R)
• M13: 9,010,579 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319.9

Radius: 13.2

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.19 AU - 1.93 AU

Year: 1299 Days

Day: 5.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 54,078,875 km

• M1: 164,109 km (0.09 R)
• M2: 590,762 km (0.065 R)
• M3: 1,070,822 km (0.069 R)
• M4: 1,505,403 km (0.078 R)
• M5: 2,070,285 km (0.069 R)
• M6: 2,519,827 km (0.088 R)
• M7: 3,138,414 km (0.073 R)
• M8: 4,361,676 km (0.084 R)
• M9: 4,857,443 km (0.082 R)
• M10: 5,544,546 km (0.081 R)
• M11: 5,962,822 km (0.111 R)
• M12: 6,818,521 km (0.067 R)
• M13: 7,465,083 km (0.106 R)
• M14: 8,001,541 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 828.8

Radius: 12.6

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.77 AU - 1.83 AU

Year: 1610 Days

Day: 9.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 54,078,875 km

• M1: 156,779 km (0.08 R)
• M2: 724,203 km (0.074 R)
• M3: 1,195,437 km (0.111 R)
• M4: 1,680,582 km (0.088 R)
• M5: 2,164,831 km (0.071 R)
• M6: 2,673,314 km (0.11 R)
• M7: 3,182,994 km (0.103 R)
• M8: 3,757,151 km (0.032 R)
• M9: 5,007,938 km (0.046 R)
• M10: 5,625,628 km (0.089 R)
• M11: 6,073,374 km (0.088 R)
• M12: 6,494,044 km (0.099 R)
• M13: 8,497,159 km (0.106 R)
• M14: 9,120,085 km (0.111 R)
• M15: 10,318,064 km (0.097 R)
• M16: 11,027,607 km (0.104 R)
• M17: 12,903,864 km (0.087 R)
• M18: 14,195,641 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501.5

Radius: 9.8

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.86 AU - 2.46 AU

Year: 2117 Days

Day: 6.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 54,078,875 km

• M1: 123,568 km (0.117 R)
• M2: 639,680 km (0.035 R)
• M3: 1,004,251 km (0.062 R)
• M4: 2,824,109 km (0.068 R)
• M5: 3,344,709 km (0.049 R)
• M6: 5,686,365 km (0.094 R)
• M7: 7,570,550 km (0.07 R)
• M8: 8,272,164 km (0.117 R)
• M9: 9,176,932 km (0.077 R)
• M10: 9,536,864 km (0.096 R)
• M11: 11,821,972 km (0.084 R)
• M12: 12,846,867 km (0.106 R)
• M13: 13,297,904 km (0.114 R)
• M14: 14,892,917 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.9

Radius: 12.2

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 3.7 AU - 3.76 AU

Year: 4804 Days

Day: 7.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 54,078,875 km

• M1: 151,842 km (0.047 R)
• M2: 711,338 km (0.108 R)
• M3: 1,247,197 km (0.069 R)
• M4: 1,924,427 km (0.079 R)
• M5: 2,310,240 km (0.039 R)
• M6: 3,033,845 km (0.043 R)
• M7: 3,479,946 km (0.12 R)
• M8: 3,992,318 km (0.109 R)
• M9: 4,505,888 km (0.119 R)
• M10: 4,984,601 km (0.041 R)
• M11: 6,409,072 km (0.089 R)
• M12: 6,852,929 km (0.1 R)
• M13: 7,453,714 km (0.075 R)
• M14: 9,920,583 km (0.077 R)
• M15: 10,559,366 km (0.076 R)
• M16: 12,061,328 km (0.089 R)
• M17: 13,443,613 km (0.117 R)
• M18: 15,261,227 km (0.063 R)
• M19: 17,973,735 km (0.112 R)
• M20: 18,603,393 km (0.057 R)
• M21: 20,513,010 km (0.078 R)
• M22: 23,505,715 km (0.082 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 932.7

Radius: 6.2

Gravity: 24.26 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 4.93 AU - 7.45 AU

Year: 10270 Days

Day: 21.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 54,078,875 km

• M1: 120,576 km (0.109 R)
• M2: 386,860 km (0.035 R)
• M3: 636,539 km (0.111 R)
• M4: 962,064 km (0.031 R)
• M5: 1,200,224 km (0.117 R)
• M6: 1,685,818 km (0.099 R)
• M7: 2,053,231 km (0.078 R)
• M8: 2,790,299 km (0.091 R)
• M9: 3,040,278 km (0.118 R)
• M10: 4,106,611 km (0.095 R)
• M11: 4,583,679 km (0.099 R)
• M12: 6,908,579 km (0.106 R)
• M13: 7,367,695 km (0.075 R)
• M14: 7,582,966 km (0.11 R)
• M15: 8,533,212 km (0.104 R)
• M16: 9,713,839 km (0.101 R)
• M17: 10,236,533 km (0.083 R)
• M18: 13,072,161 km (0.041 R)
• M19: 14,101,095 km (0.073 R)
• M20: 17,207,196 km (0.111 R)
• M21: 17,510,431 km (0.08 R)
• M22: 18,049,581 km (0.06 R)
• M23: 20,233,112 km (0.102 R)
• M24: 20,998,455 km (0.094 R)
• M25: 23,133,516 km (0.083 R)
• M26: 23,970,216 km (0.096 R)
• M27: 31,742,424 km (0.049 R)
• M28: 32,659,160 km (0.085 R)
• M29: 39,313,273 km (0.033 R)
• M30: 41,175,019 km (0.043 R)
• M31: 41,990,626 km (0.097 R)
• M32: 50,903,069 km (0.075 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 465 - 14,068 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit