🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.79

Radius: 0.91

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.51 AU - 0.61 AU

Year: 266 Days

Day: 17.4 Hours

Environment

Temp: -122 °C

Axial Tilt: 36.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.14

Radius: 1.05

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.45 AU - 0.73 AU

Year: 288 Days

Day: 35.7 Hours

Environment

Temp: -132 °C

Axial Tilt: 15.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972.1

Radius: 12.7

Gravity: 6.03 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.65 AU - 1.71 AU

Year: 1385 Days

Day: 14.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 80,013,360 km

• M1: 157,975 km (0.077 R)
• M2: 620,831 km (0.076 R)
• M3: 1,331,571 km (0.089 R)
• M4: 1,825,094 km (0.105 R)
• M5: 2,504,268 km (0.108 R)
• M6: 3,206,930 km (0.114 R)
• M7: 3,791,408 km (0.063 R)
• M8: 4,582,033 km (0.106 R)
• M9: 5,027,386 km (0.074 R)
• M10: 5,613,810 km (0.093 R)
• M11: 6,318,416 km (0.115 R)
• M12: 7,294,991 km (0.049 R)
• M13: 8,669,197 km (0.059 R)
• M14: 9,226,748 km (0.112 R)
• M15: 10,141,688 km (0.065 R)
• M16: 11,589,347 km (0.074 R)
• M17: 12,038,141 km (0.078 R)
• M18: 12,930,642 km (0.113 R)
• M19: 14,330,429 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879.5

Radius: 12.9

Gravity: 5.29 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 2.8 AU - 3.26 AU

Year: 3353 Days

Day: 11.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 80,013,360 km

• M1: 160,967 km (0.09 R)
• M2: 674,387 km (0.116 R)
• M3: 1,250,189 km (0.108 R)
• M4: 1,771,538 km (0.107 R)
• M5: 2,362,300 km (0.085 R)
• M6: 3,172,672 km (0.11 R)
• M7: 3,633,283 km (0.119 R)
• M8: 4,294,805 km (0.111 R)
• M9: 6,990,708 km (0.107 R)
• M10: 7,574,888 km (0.034 R)
• M11: 8,730,681 km (0.116 R)
• M12: 11,478,794 km (0.047 R)
• M13: 12,432,929 km (0.046 R)
• M14: 14,241,717 km (0.045 R)
• M15: 14,864,344 km (0.084 R)
• M16: 17,014,215 km (0.06 R)
• M17: 20,064,366 km (0.113 R)
• M18: 21,515,465 km (0.076 R)
• M19: 22,753,687 km (0.099 R)
• M20: 23,821,516 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.5

Radius: 9.9

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 4.01 AU - 4.99 AU

Year: 6069 Days

Day: 7.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 80,013,360 km

• M1: 123,269 km (0.07 R)
• M2: 810,521 km (0.078 R)
• M3: 2,935,260 km (0.12 R)
• M4: 3,319,128 km (0.073 R)
• M5: 4,651,447 km (0.114 R)
• M6: 5,121,334 km (0.074 R)
• M7: 7,020,179 km (0.058 R)
• M8: 9,347,623 km (0.077 R)
• M9: 11,250,657 km (0.102 R)
• M10: 11,669,681 km (0.117 R)
• M11: 12,002,836 km (0.11 R)
• M12: 13,554,764 km (0.042 R)
• M13: 14,297,816 km (0.08 R)
• M14: 18,619,549 km (0.065 R)
• M15: 21,820,794 km (0.074 R)
• M16: 24,976,711 km (0.093 R)
• M17: 26,581,447 km (0.11 R)
• M18: 27,998,588 km (0.065 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 302.4

Radius: 3.5

Gravity: 24.69 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 6.1 AU - 8.54 AU

Year: 12592 Days

Day: 16.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 80,013,360 km

• M1: 47,423 km (0.047 R)
• M2: 211,232 km (0.086 R)
• M3: 404,513 km (0.072 R)
• M4: 540,796 km (0.116 R)
• M5: 1,310,178 km (0.072 R)
• M6: 1,462,918 km (0.038 R)
• M7: 2,973,706 km (0.113 R)
• M8: 3,216,055 km (0.047 R)
• M9: 4,154,931 km (0.068 R)
• M10: 5,231,438 km (0.077 R)
• M11: 10,373,715 km (0.038 R)
• M12: 14,378,001 km (0.103 R)
• M13: 23,830,193 km (0.05 R)
• M14: 24,265,822 km (0.108 R)
• M15: 26,524,002 km (0.08 R)
• M16: 33,583,974 km (0.088 R)
• M17: 42,559,547 km (0.057 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 735.9

Radius: 7.2

Gravity: 14.2 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 7.47 AU - 7.63 AU

Year: 13190 Days

Day: 22.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 80,013,360 km

• M1: 89,609 km (0.095 R)
• M2: 359,184 km (0.063 R)
• M3: 659,278 km (0.109 R)
• M4: 914,791 km (0.094 R)
• M5: 1,174,343 km (0.114 R)
• M6: 1,425,817 km (0.111 R)
• M7: 1,713,344 km (0.098 R)
• M8: 2,386,385 km (0.115 R)
• M9: 2,840,116 km (0.033 R)
• M10: 3,173,719 km (0.106 R)
• M11: 3,722,893 km (0.113 R)
• M12: 4,551,665 km (0.1 R)
• M13: 6,488,060 km (0.046 R)
• M14: 8,189,287 km (0.044 R)
• M15: 8,426,998 km (0.09 R)
• M16: 9,066,828 km (0.113 R)
• M17: 16,056,938 km (0.116 R)
• M18: 16,505,283 km (0.115 R)
• M19: 18,545,199 km (0.109 R)
• M20: 19,710,417 km (0.087 R)
• M21: 21,458,767 km (0.093 R)
• M22: 25,160,567 km (0.105 R)
• M23: 25,461,857 km (0.067 R)
• M24: 28,066,655 km (0.081 R)
• M25: 31,189,062 km (0.099 R)
• M26: 34,535,566 km (0.058 R)
• M27: 37,850,356 km (0.115 R)
• M28: 38,511,279 km (0.057 R)
• M29: 39,992,298 km (0.085 R)
• M30: 43,933,005 km (0.11 R)
• M31: 53,233,206 km (0.089 R)
• M32: 56,602,748 km (0.047 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 281.9

Radius: 7

Gravity: 5.75 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 6.26 AU - 10.04 AU

Year: 14793 Days

Day: 20.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 80,013,360 km

• M1: 917,933 km (0.057 R)
• M2: 1,717,384 km (0.081 R)
• M3: 2,446,374 km (0.115 R)
• M4: 3,201,993 km (0.097 R)
• M5: 4,382,021 km (0.081 R)
• M6: 7,043,666 km (0.06 R)
• M7: 7,566,212 km (0.1 R)
• M8: 8,464,547 km (0.026 R)
• M9: 12,255,506 km (0.104 R)
• M10: 13,612,957 km (0.095 R)
• M11: 17,693,688 km (0.105 R)
• M12: 19,734,951 km (0.058 R)
• M13: 21,262,196 km (0.117 R)
• M14: 22,012,429 km (0.098 R)
• M15: 25,936,232 km (0.105 R)
• M16: 42,647,062 km (0.105 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 837.4

Radius: 5.1

Gravity: 32.2 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 8.48 AU - 11.12 AU

Year: 19506 Days

Day: 22.2 Hours

Environment

Temp: -240 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 80,013,360 km

• M1: 63,579 km (0.089 R)
• M2: 255,812 km (0.053 R)
• M3: 638,185 km (0.089 R)
• M4: 903,122 km (0.105 R)
• M5: 1,358,199 km (0.075 R)
• M6: 1,726,060 km (0.071 R)
• M7: 1,914,254 km (0.118 R)
• M8: 2,586,248 km (0.055 R)
• M9: 2,962,786 km (0.104 R)
• M10: 3,824,769 km (0.091 R)
• M11: 4,179,166 km (0.081 R)
• M12: 8,258,550 km (0.038 R)
• M13: 9,527,140 km (0.051 R)
• M14: 11,435,261 km (0.083 R)
• M15: 13,657,388 km (0.075 R)
• M16: 14,714,297 km (0.079 R)
• M17: 19,117,710 km (0.11 R)
• M18: 20,825,968 km (0.105 R)
• M19: 21,218,962 km (0.054 R)
• M20: 22,736,632 km (0.08 R)
• M21: 26,100,041 km (0.083 R)
• M22: 29,410,044 km (0.087 R)
• M23: 30,910,361 km (0.101 R)
• M24: 34,062,837 km (0.073 R)
• M25: 35,437,342 km (0.062 R)
• M26: 35,856,814 km (0.036 R)
• M27: 37,567,765 km (0.053 R)
• M28: 48,472,702 km (0.111 R)
• M29: 50,385,760 km (0.078 R)
• M30: 50,738,811 km (0.081 R)
• M31: 51,093,657 km (0.11 R)
• M32: 60,909,222 km (0.117 R)
• M33: 67,319,939 km (0.119 R)
• M34: 69,917,557 km (0.106 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: 163 - 18,617 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit