🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.61 AU - 0.63 AU

Year: 310 Days

Day: 37.4 Hours

Environment

Temp: -139 °C

Axial Tilt: 6.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355.4

Radius: 11.9

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.96 AU - 1.2 AU

Year: 714 Days

Day: 9.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 60,615,251 km

• M1: 149,448 km (0.109 R)
• M2: 532,269 km (0.046 R)
• M3: 992,283 km (0.119 R)
• M4: 1,412,054 km (0.063 R)
• M5: 2,122,794 km (0.053 R)
• M6: 2,546,006 km (0.05 R)
• M7: 2,991,957 km (0.116 R)
• M8: 4,154,782 km (0.087 R)
• M9: 4,730,584 km (0.045 R)
• M10: 5,546,191 km (0.086 R)
• M11: 6,415,056 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154.5

Radius: 9.7

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.73 AU - 1.77 AU

Year: 1472 Days

Day: 6.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,615,251 km

• M1: 120,725 km (0.08 R)
• M2: 427,252 km (0.035 R)
• M3: 921,224 km (0.093 R)
• M4: 2,012,091 km (0.063 R)
• M5: 2,477,191 km (0.105 R)
• M6: 3,982,146 km (0.1 R)
• M7: 4,442,758 km (0.045 R)
• M8: 6,040,612 km (0.073 R)
• M9: 6,360,602 km (0.056 R)
• M10: 6,712,905 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.1

Radius: 12.4

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 3 AU - 4.28 AU

Year: 4416 Days

Day: 7.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 60,615,251 km

• M1: 154,834 km (0.11 R)
• M2: 600,336 km (0.114 R)
• M3: 1,027,588 km (0.094 R)
• M4: 1,876,107 km (0.068 R)
• M5: 3,319,577 km (0.067 R)
• M6: 3,723,192 km (0.077 R)
• M7: 4,679,571 km (0.053 R)
• M8: 6,412,662 km (0.027 R)
• M9: 6,913,965 km (0.076 R)
• M10: 8,651,544 km (0.12 R)
• M11: 9,947,660 km (0.063 R)
• M12: 10,924,833 km (0.085 R)
• M13: 13,826,733 km (0.113 R)
• M14: 14,559,014 km (0.102 R)
• M15: 17,507,439 km (0.064 R)
• M16: 19,833,686 km (0.057 R)
• M17: 20,697,913 km (0.078 R)
• M18: 21,517,709 km (0.083 R)
• M19: 22,288,138 km (0.078 R)
• M20: 23,222,227 km (0.073 R)
• M21: 25,399,923 km (0.051 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 935.6

Radius: 14

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 3.9 AU - 4.66 AU

Year: 5630 Days

Day: 5.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 60,615,251 km

• M1: 174,431 km (0.11 R)
• M2: 737,966 km (0.118 R)
• M3: 1,542,952 km (0.078 R)
• M4: 1,987,258 km (0.112 R)
• M5: 2,790,748 km (0.083 R)
• M6: 3,640,913 km (0.068 R)
• M7: 4,342,078 km (0.054 R)
• M8: 6,047,943 km (0.115 R)
• M9: 6,648,279 km (0.111 R)
• M10: 7,106,348 km (0.114 R)
• M11: 8,284,730 km (0.058 R)
• M12: 11,371,233 km (0.118 R)
• M13: 12,028,716 km (0.069 R)
• M14: 13,144,417 km (0.114 R)
• M15: 15,642,851 km (0.083 R)
• M16: 16,393,234 km (0.097 R)
• M17: 18,581,103 km (0.048 R)
• M18: 19,069,091 km (0.083 R)
• M19: 22,024,247 km (0.048 R)
• M20: 23,610,733 km (0.12 R)
• M21: 28,273,998 km (0.094 R)
• M22: 29,106,809 km (0.118 R)
• M23: 29,576,546 km (0.03 R)
• M24: 31,113,664 km (0.049 R)
• M25: 33,007,274 km (0.058 R)
• M26: 34,555,762 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 764.9

Radius: 9.3

Gravity: 8.84 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 4.07 AU - 6.11 AU

Year: 7301 Days

Day: 9.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 60,615,251 km

• M1: 116,686 km (0.111 R)
• M2: 413,788 km (0.066 R)
• M3: 1,046,437 km (0.095 R)
• M4: 1,420,881 km (0.117 R)
• M5: 2,168,870 km (0.104 R)
• M6: 2,747,215 km (0.09 R)
• M7: 3,803,975 km (0.076 R)
• M8: 4,316,796 km (0.074 R)
• M9: 4,759,606 km (0.116 R)
• M10: 6,307,046 km (0.092 R)
• M11: 8,001,093 km (0.097 R)
• M12: 8,373,292 km (0.1 R)
• M13: 9,931,653 km (0.05 R)
• M14: 11,362,557 km (0.101 R)
• M15: 12,046,668 km (0.091 R)
• M16: 14,689,165 km (0.118 R)
• M17: 15,821,022 km (0.076 R)
• M18: 17,765,346 km (0.119 R)
• M19: 18,116,003 km (0.092 R)
• M20: 21,721,461 km (0.098 R)
• M21: 23,776,487 km (0.098 R)
• M22: 34,262,251 km (0.109 R)
• M23: 35,799,219 km (0.078 R)
• M24: 39,128,071 km (0.085 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 760.2

Radius: 7.3

Gravity: 14.27 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 5.03 AU - 7.49 AU

Year: 9959 Days

Day: 18.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 60,615,251 km

• M1: 92,302 km (0.117 R)
• M2: 989,440 km (0.067 R)
• M3: 1,770,940 km (0.111 R)
• M4: 2,434,107 km (0.028 R)
• M5: 2,887,837 km (0.095 R)
• M6: 3,323,915 km (0.086 R)
• M7: 5,252,232 km (0.11 R)
• M8: 6,798,924 km (0.06 R)
• M9: 10,548,894 km (0.117 R)
• M10: 16,177,813 km (0.091 R)
• M11: 19,071,634 km (0.068 R)
• M12: 20,270,960 km (0.107 R)
• M13: 23,442,734 km (0.057 R)
• M14: 34,680,826 km (0.065 R)
• M15: 36,102,155 km (0.075 R)
• M16: 39,314,171 km (0.099 R)
• M17: 43,115,902 km (0.077 R)
• M18: 45,454,715 km (0.094 R)
• M19: 48,458,939 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 487.3

Radius: 4.1

Gravity: 28.99 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 8.23 AU - 13.23 AU

Year: 22348 Days

Day: 20.3 Hours

Environment

Temp: -239 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 60,615,251 km

• M1: 51,761 km (0.082 R)
• M2: 333,902 km (0.078 R)
• M3: 498,909 km (0.116 R)
• M4: 727,943 km (0.112 R)
• M5: 1,248,693 km (0.12 R)
• M6: 1,690,007 km (0.103 R)
• M7: 2,606,593 km (0.111 R)
• M8: 3,753,111 km (0.069 R)
• M9: 3,936,219 km (0.046 R)
• M10: 4,763,944 km (0.073 R)
• M11: 5,014,969 km (0.102 R)
• M12: 5,984,513 km (0.088 R)
• M13: 7,495,003 km (0.116 R)
• M14: 9,408,210 km (0.062 R)
• M15: 10,092,620 km (0.04 R)
• M16: 10,566,995 km (0.114 R)
• M17: 13,515,569 km (0.07 R)
• M18: 14,834,125 km (0.113 R)
• M19: 16,397,273 km (0.061 R)
• M20: 19,846,551 km (0.064 R)
• M21: 20,778,695 km (0.093 R)
• M22: 23,338,165 km (0.102 R)
• M23: 24,061,471 km (0.078 R)
• M24: 26,879,297 km (0.082 R)
• M25: 27,217,986 km (0.051 R)
• M26: 32,135,418 km (0.094 R)
• M27: 33,810,316 km (0.107 R)
• M28: 37,895,385 km (0.086 R)
• M29: 39,182,076 km (0.083 R)
• M30: 46,216,317 km (0.109 R)
• M31: 48,014,783 km (0.077 R)
• M32: 52,274,582 km (0.097 R)
• M33: 52,802,064 km (0.12 R)
• M34: 53,689,180 km (0.097 R)
• M35: 56,964,775 km (0.069 R)
• M36: 59,602,784 km (0.035 R)
• M37: 62,914,133 km (0.101 R)
• M38: 64,111,514 km (0.032 R)
• M39: 66,964,196 km (0.11 R)
• M40: 68,212,291 km (0.087 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 242.6

Radius: 5.5

Gravity: 8.02 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 9.18 AU - 13.26 AU

Year: 23896 Days

Day: 18.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 60,615,251 km

• M1: 90,058 km (0.115 R)
• M2: 293,810 km (0.092 R)
• M3: 991,983 km (0.081 R)
• M4: 1,397,543 km (0.109 R)
• M5: 3,523,628 km (0.071 R)
• M6: 3,885,505 km (0.102 R)
• M7: 4,554,208 km (0.105 R)
• M8: 6,435,102 km (0.104 R)
• M9: 6,639,602 km (0.052 R)
• M10: 11,578,875 km (0.032 R)
• M11: 13,879,092 km (0.088 R)
• M12: 14,708,911 km (0.05 R)
• M13: 16,315,293 km (0.058 R)
• M14: 20,219,199 km (0.062 R)
• M15: 21,738,815 km (0.098 R)
• M16: 22,573,421 km (0.107 R)
• M17: 29,245,337 km (0.103 R)
• M18: 33,696,920 km (0.051 R)
• M19: 35,317,813 km (0.031 R)
• M20: 36,729,269 km (0.06 R)
• M21: 42,179,120 km (0.105 R)
• M22: 45,996,259 km (0.114 R)
• M23: 54,308,814 km (0.081 R)
• M24: 59,891,657 km (0.083 R)
• M25: 60,071,923 km (0.104 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: 338 - 18,646 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit