🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.72

Radius: 0.88

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.56 AU - 0.72 AU

Year: 331 Days

Day: 21.5 Hours

Environment

Temp: -136 °C

Axial Tilt: 0.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,937,698 km

• M1: 91,404 km (0.061 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.5

Radius: 11.6

Gravity: 6.17 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.79 AU - 0.95 AU

Year: 524 Days

Day: 12.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 68,937,698 km

• M1: 144,212 km (0.059 R)
• M2: 525,986 km (0.069 R)
• M3: 974,331 km (0.07 R)
• M4: 1,389,016 km (0.084 R)
• M5: 1,831,676 km (0.062 R)
• M6: 2,468,066 km (0.094 R)
• M7: 3,126,296 km (0.085 R)
• M8: 3,523,479 km (0.075 R)
• M9: 3,982,445 km (0.069 R)
• M10: 4,589,064 km (0.12 R)
• M11: 5,137,939 km (0.03 R)
• M12: 5,498,619 km (0.063 R)
• M13: 6,329,037 km (0.115 R)
• M14: 6,825,403 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879.8

Radius: 10.5

Gravity: 7.98 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.88 AU - 2.34 AU

Year: 1979 Days

Day: 7.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 68,937,698 km

• M1: 130,599 km (0.073 R)
• M2: 472,430 km (0.095 R)
• M3: 916,287 km (0.077 R)
• M4: 1,413,251 km (0.105 R)
• M5: 1,907,822 km (0.096 R)
• M6: 2,701,139 km (0.11 R)
• M7: 3,417,563 km (0.084 R)
• M8: 4,215,967 km (0.082 R)
• M9: 4,931,643 km (0.044 R)
• M10: 5,875,307 km (0.091 R)
• M11: 6,768,406 km (0.097 R)
• M12: 8,594,248 km (0.104 R)
• M13: 10,209,456 km (0.118 R)
• M14: 10,615,016 km (0.109 R)
• M15: 11,185,283 km (0.114 R)
• M16: 11,937,012 km (0.1 R)
• M17: 12,637,879 km (0.095 R)
• M18: 13,762,406 km (0.076 R)
• M19: 14,858,509 km (0.112 R)
• M20: 15,815,636 km (0.065 R)
• M21: 16,813,305 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.4

Radius: 13.8

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 2.08 AU - 2.64 AU

Year: 2341 Days

Day: 6.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 68,937,698 km

• M1: 172,636 km (0.073 R)
• M2: 614,847 km (0.116 R)
• M3: 1,183,918 km (0.118 R)
• M4: 1,786,348 km (0.057 R)
• M5: 2,532,692 km (0.103 R)
• M6: 3,052,395 km (0.084 R)
• M7: 3,869,349 km (0.052 R)
• M8: 4,351,204 km (0.098 R)
• M9: 5,388,067 km (0.106 R)
• M10: 5,991,245 km (0.103 R)
• M11: 6,555,827 km (0.094 R)
• M12: 7,214,806 km (0.111 R)
• M13: 8,732,925 km (0.107 R)
• M14: 14,849,384 km (0.116 R)
• M15: 15,535,739 km (0.088 R)
• M16: 17,077,794 km (0.045 R)
• M17: 19,463,281 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 756.4

Radius: 12.8

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 2.35 AU - 3.91 AU

Year: 3575 Days

Day: 9 Hours

Environment

Temp: -203 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 68,937,698 km

• M1: 159,172 km (0.09 R)
• M2: 560,842 km (0.086 R)
• M3: 1,734,438 km (0.03 R)
• M4: 2,867,642 km (0.108 R)
• M5: 3,277,689 km (0.084 R)
• M6: 3,830,304 km (0.058 R)
• M7: 4,398,626 km (0.112 R)
• M8: 6,538,923 km (0.055 R)
• M9: 8,270,369 km (0.112 R)
• M10: 9,147,910 km (0.097 R)
• M11: 10,046,095 km (0.088 R)
• M12: 11,002,325 km (0.039 R)
• M13: 11,436,608 km (0.089 R)
• M14: 12,903,864 km (0.074 R)
• M15: 13,338,296 km (0.112 R)
• M16: 15,442,539 km (0.092 R)
• M17: 18,479,526 km (0.045 R)
• M18: 22,374,905 km (0.095 R)
• M19: 22,862,444 km (0.07 R)
• M20: 23,930,872 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.4

Radius: 11.2

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 3.73 AU - 4.37 AU

Year: 5263 Days

Day: 10.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,937,698 km

• M1: 619,485 km (0.037 R)
• M2: 1,859,801 km (0.098 R)
• M3: 2,287,202 km (0.075 R)
• M4: 3,693,721 km (0.117 R)
• M5: 5,479,022 km (0.098 R)
• M6: 6,037,920 km (0.108 R)
• M7: 9,422,422 km (0.07 R)
• M8: 10,593,773 km (0.12 R)
• M9: 12,757,856 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 404.6

Radius: 10

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 4.08 AU - 6.06 AU

Year: 7371 Days

Day: 5.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 68,937,698 km

• M1: 127,009 km (0.085 R)
• M2: 796,908 km (0.085 R)
• M3: 1,420,731 km (0.109 R)
• M4: 1,848,431 km (0.072 R)
• M5: 3,163,397 km (0.109 R)
• M6: 4,461,009 km (0.066 R)
• M7: 5,130,609 km (0.073 R)
• M8: 5,653,004 km (0.118 R)
• M9: 6,569,291 km (0.117 R)
• M10: 7,544,969 km (0.087 R)
• M11: 8,534,858 km (0.081 R)
• M12: 9,061,143 km (0.104 R)
• M13: 9,523,251 km (0.085 R)
• M14: 10,223,518 km (0.089 R)
• M15: 11,434,214 km (0.059 R)
• M16: 14,250,095 km (0.089 R)
• M17: 16,737,608 km (0.096 R)
• M18: 17,306,080 km (0.105 R)
• M19: 17,952,792 km (0.117 R)
• M20: 20,846,164 km (0.064 R)
• M21: 21,801,197 km (0.12 R)
• M22: 23,640,802 km (0.095 R)
• M23: 24,923,304 km (0.119 R)
• M24: 26,505,751 km (0.097 R)
• M25: 28,958,258 km (0.091 R)
• M26: 31,845,796 km (0.088 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 684.8

Radius: 9.6

Gravity: 7.43 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 5.38 AU - 5.86 AU

Year: 8602 Days

Day: 12.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 68,937,698 km

• M1: 119,379 km (0.058 R)
• M2: 470,485 km (0.053 R)
• M3: 905,815 km (0.115 R)
• M4: 1,333,964 km (0.087 R)
• M5: 2,221,678 km (0.111 R)
• M6: 2,970,116 km (0.076 R)
• M7: 5,458,826 km (0.094 R)
• M8: 6,702,433 km (0.118 R)
• M9: 7,312,194 km (0.066 R)
• M10: 7,671,080 km (0.092 R)
• M11: 8,863,674 km (0.073 R)
• M12: 9,272,076 km (0.103 R)
• M13: 10,826,847 km (0.085 R)
• M14: 12,379,673 km (0.106 R)
• M15: 13,005,889 km (0.09 R)
• M16: 15,075,426 km (0.108 R)
• M17: 17,425,908 km (0.109 R)
• M18: 17,851,963 km (0.11 R)
• M19: 20,793,506 km (0.063 R)
• M20: 22,671,857 km (0.036 R)
• M21: 24,306,812 km (0.112 R)
• M22: 26,482,413 km (0.091 R)
• M23: 31,740,779 km (0.079 R)
• M24: 37,068,557 km (0.106 R)
• M25: 37,655,729 km (0.079 R)
• M26: 38,010,874 km (0.087 R)
• M27: 39,454,344 km (0.096 R)
• M28: 43,221,966 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 381.6

Radius: 6.5

Gravity: 9.03 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 5.45 AU - 8.45 AU

Year: 11830 Days

Day: 17.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 68,937,698 km

• M1: 80,932 km (0.03 R)
• M2: 297,251 km (0.118 R)
• M3: 768,933 km (0.083 R)
• M4: 3,160,405 km (0.115 R)
• M5: 4,066,818 km (0.104 R)
• M6: 5,454,189 km (0.057 R)
• M7: 5,922,281 km (0.058 R)
• M8: 7,053,390 km (0.097 R)
• M9: 8,452,429 km (0.107 R)
• M10: 10,883,395 km (0.073 R)
• M11: 12,512,067 km (0.107 R)
• M12: 16,380,518 km (0.106 R)
• M13: 17,281,995 km (0.105 R)
• M14: 18,143,080 km (0.115 R)
• M15: 19,335,226 km (0.116 R)
• M16: 21,301,241 km (0.106 R)
• M17: 22,374,456 km (0.072 R)
• M18: 25,351,005 km (0.114 R)
• M19: 26,744,210 km (0.1 R)
• M20: 31,969,364 km (0.116 R)
• M21: 32,504,925 km (0.082 R)
• M22: 36,772,952 km (0.097 R)
• M23: 38,435,134 km (0.027 R)
• M24: 41,021,382 km (0.113 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 588.5

Radius: 3.1

Gravity: 61.24 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 7.75 AU - 11.05 AU

Year: 18608 Days

Day: 17.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 68,937,698 km

• M1: 38,596 km (0.102 R)
• M2: 137,929 km (0.076 R)
• M3: 407,804 km (0.032 R)
• M4: 658,530 km (0.105 R)
• M5: 876,793 km (0.063 R)
• M6: 1,002,904 km (0.112 R)
• M7: 1,349,971 km (0.102 R)
• M8: 1,616,704 km (0.119 R)
• M9: 1,807,292 km (0.081 R)
• M10: 1,993,392 km (0.063 R)
• M11: 2,559,919 km (0.088 R)
• M12: 3,388,990 km (0.082 R)
• M13: 3,730,373 km (0.097 R)
• M14: 3,970,327 km (0.113 R)
• M15: 4,615,543 km (0.096 R)
• M16: 5,106,823 km (0.103 R)
• M17: 5,216,478 km (0.102 R)
• M18: 5,478,424 km (0.076 R)
• M19: 7,563,369 km (0.075 R)
• M20: 7,753,957 km (0.064 R)
• M21: 8,548,022 km (0.076 R)
• M22: 9,285,989 km (0.07 R)
• M23: 10,238,029 km (0.119 R)
• M24: 13,068,720 km (0.114 R)
• M25: 13,621,185 km (0.09 R)
• M26: 15,145,139 km (0.034 R)
• M27: 20,575,841 km (0.068 R)
• M28: 23,268,154 km (0.096 R)
• M29: 23,874,175 km (0.04 R)
• M30: 26,186,060 km (0.108 R)
• M31: 28,757,947 km (0.063 R)
• M32: 29,808,573 km (0.042 R)
• M33: 30,283,695 km (0.11 R)
• M34: 30,403,224 km (0.051 R)
• M35: 40,875,374 km (0.042 R)
• M36: 41,314,444 km (0.081 R)
• M37: 41,609,002 km (0.101 R)
• M38: 44,015,284 km (0.118 R)
• M39: 46,195,523 km (0.1 R)
• M40: 49,599,324 km (0.114 R)
• M41: 52,819,418 km (0.059 R)
• M42: 55,101,234 km (0.097 R)
• M43: 60,996,138 km (0.087 R)
• M44: 64,292,228 km (0.096 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 177 - 17,136 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit