🌌 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: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.8

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.53 AU - 0.73 AU

Year: 328 Days

Day: 35.6 Hours

Environment

Temp: -131 °C

Axial Tilt: 23 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.1

Radius: 14.4

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.58 AU - 0.9 AU

Year: 418 Days

Day: 8.2 Hours

Environment

Temp: -141 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 57,143,665 km

• M1: 179,069 km (0.081 R)
• M2: 663,167 km (0.117 R)
• M3: 1,115,851 km (0.112 R)
• M4: 2,572,335 km (0.073 R)
• M5: 3,190,773 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 641.9

Radius: 9.8

Gravity: 6.68 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.85 AU - 1.29 AU

Year: 726 Days

Day: 13.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,143,665 km

• M1: 121,922 km (0.118 R)
• M2: 552,764 km (0.099 R)
• M3: 1,511,537 km (0.059 R)
• M4: 1,850,226 km (0.097 R)
• M5: 2,289,745 km (0.109 R)
• M6: 2,809,897 km (0.056 R)
• M7: 3,850,649 km (0.106 R)
• M8: 6,262,167 km (0.052 R)
• M9: 6,716,346 km (0.104 R)
• M10: 7,416,015 km (0.11 R)
• M11: 8,115,385 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577.7

Radius: 11

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.96 AU - 2.88 AU

Year: 2470 Days

Day: 8.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,143,665 km

• M1: 136,882 km (0.077 R)
• M2: 581,786 km (0.09 R)
• M3: 1,130,661 km (0.059 R)
• M4: 1,582,895 km (0.028 R)
• M5: 2,020,618 km (0.082 R)
• M6: 3,226,676 km (0.045 R)
• M7: 3,844,216 km (0.112 R)
• M8: 4,455,473 km (0.057 R)
• M9: 4,817,650 km (0.109 R)
• M10: 5,199,424 km (0.1 R)
• M11: 5,625,628 km (0.089 R)
• M12: 6,024,007 km (0.104 R)
• M13: 6,657,105 km (0.076 R)
• M14: 8,792,316 km (0.068 R)
• M15: 10,584,049 km (0.093 R)
• M16: 11,545,964 km (0.114 R)
• M17: 11,906,195 km (0.041 R)
• M18: 14,319,508 km (0.076 R)
• M19: 17,720,317 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 633

Radius: 12.5

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 3.11 AU - 3.81 AU

Year: 4222 Days

Day: 8.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,143,665 km

• M1: 156,031 km (0.117 R)
• M2: 681,119 km (0.077 R)
• M3: 1,802,206 km (0.034 R)
• M4: 2,441,736 km (0.082 R)
• M5: 3,209,622 km (0.09 R)
• M6: 3,764,930 km (0.075 R)
• M7: 4,767,235 km (0.094 R)
• M8: 6,811,939 km (0.11 R)
• M9: 10,869,183 km (0.099 R)
• M10: 13,579,148 km (0.069 R)
• M11: 17,774,172 km (0.114 R)
• M12: 20,165,045 km (0.119 R)
• M13: 21,437,674 km (0.093 R)
• M14: 24,365,155 km (0.109 R)
• M15: 26,041,249 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 860.1

Radius: 14.2

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 3.4 AU - 5.1 AU

Year: 5748 Days

Day: 11.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,143,665 km

• M1: 188,344 km (0.111 R)
• M2: 693,386 km (0.058 R)
• M3: 1,490,144 km (0.091 R)
• M4: 3,084,409 km (0.055 R)
• M5: 5,178,181 km (0.081 R)
• M6: 6,290,590 km (0.097 R)
• M7: 7,783,428 km (0.109 R)
• M8: 9,589,074 km (0.095 R)
• M9: 10,356,661 km (0.067 R)
• M10: 10,827,295 km (0.105 R)
• M11: 11,460,244 km (0.111 R)
• M12: 12,587,913 km (0.07 R)
• M13: 20,368,947 km (0.083 R)
• M14: 22,098,897 km (0.116 R)
• M15: 22,880,845 km (0.099 R)
• M16: 25,763,745 km (0.115 R)
• M17: 28,880,916 km (0.114 R)
• M18: 34,900,734 km (0.052 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822.3

Radius: 14.7

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 4.15 AU - 6.37 AU

Year: 7914 Days

Day: 10.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 83.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 57,143,665 km

• M1: 183,108 km (0.112 R)
• M2: 844,779 km (0.057 R)
• M3: 1,354,609 km (0.063 R)
• M4: 2,157,650 km (0.106 R)
• M5: 3,307,459 km (0.115 R)
• M6: 4,717,868 km (0.102 R)
• M7: 5,257,916 km (0.069 R)
• M8: 7,482,885 km (0.09 R)
• M9: 9,051,569 km (0.115 R)
• M10: 10,881,151 km (0.078 R)
• M11: 12,379,373 km (0.049 R)
• M12: 13,412,795 km (0.088 R)
• M13: 17,276,011 km (0.088 R)
• M14: 18,493,139 km (0.096 R)
• M15: 19,920,303 km (0.069 R)
• M16: 23,938,801 km (0.118 R)
• M17: 30,986,805 km (0.06 R)
• M18: 32,460,195 km (0.115 R)
• M19: 34,090,064 km (0.064 R)
• M20: 36,002,523 km (0.074 R)
• M21: 36,926,888 km (0.089 R)
• M22: 38,223,602 km (0.116 R)
• M23: 40,658,756 km (0.105 R)
• M24: 41,283,328 km (0.078 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339.2

Radius: 9.8

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 4.96 AU - 5.62 AU

Year: 7982 Days

Day: 10.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 57,143,665 km

• M1: 121,922 km (0.116 R)
• M2: 527,781 km (0.066 R)
• M3: 835,504 km (0.094 R)
• M4: 1,755,232 km (0.099 R)
• M5: 2,249,503 km (0.096 R)
• M6: 3,411,579 km (0.035 R)
• M7: 3,946,392 km (0.106 R)
• M8: 4,879,883 km (0.112 R)
• M9: 5,953,995 km (0.061 R)
• M10: 6,563,607 km (0.112 R)
• M11: 6,900,800 km (0.058 R)
• M12: 8,643,615 km (0.113 R)
• M13: 9,132,052 km (0.07 R)
• M14: 11,082,061 km (0.111 R)
• M15: 12,004,481 km (0.096 R)
• M16: 12,872,298 km (0.081 R)
• M17: 13,294,912 km (0.12 R)
• M18: 15,430,272 km (0.089 R)
• M19: 16,149,689 km (0.069 R)
• M20: 16,579,483 km (0.105 R)
• M21: 17,655,242 km (0.1 R)
• M22: 18,045,842 km (0.06 R)
• M23: 18,844,245 km (0.106 R)
• M24: 23,584,104 km (0.095 R)
• M25: 25,025,031 km (0.07 R)
• M26: 28,972,919 km (0.064 R)
• M27: 29,334,796 km (0.119 R)
• M28: 32,532,600 km (0.098 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 229.1

Radius: 10.5

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 5.06 AU - 6.16 AU

Year: 8717 Days

Day: 10.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,143,665 km

• M1: 136,134 km (0.079 R)
• M2: 718,967 km (0.107 R)
• M3: 1,737,579 km (0.113 R)
• M4: 2,434,855 km (0.088 R)
• M5: 3,687,139 km (0.041 R)
• M6: 4,117,083 km (0.042 R)
• M7: 4,785,785 km (0.095 R)
• M8: 5,496,525 km (0.088 R)
• M9: 7,981,196 km (0.081 R)
• M10: 8,742,948 km (0.054 R)
• M11: 12,580,283 km (0.077 R)
• M12: 13,505,995 km (0.07 R)
• M13: 14,810,040 km (0.114 R)
• M14: 15,841,816 km (0.1 R)
• M15: 16,982,201 km (0.064 R)
• M16: 18,827,042 km (0.114 R)
• M17: 24,761,589 km (0.101 R)
• M18: 29,463,001 km (0.063 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 684.8

Radius: 6.4

Gravity: 16.72 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 6.48 AU - 8.18 AU

Year: 13019 Days

Day: 16 Hours

Environment

Temp: -228 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 57,143,665 km

• M1: 79,586 km (0.12 R)
• M2: 313,258 km (0.12 R)
• M3: 608,115 km (0.109 R)
• M4: 1,048,232 km (0.106 R)
• M5: 1,485,806 km (0.044 R)
• M6: 2,923,442 km (0.063 R)
• M7: 3,650,188 km (0.098 R)
• M8: 5,210,494 km (0.111 R)
• M9: 8,289,816 km (0.114 R)
• M10: 8,817,897 km (0.111 R)
• M11: 9,419,131 km (0.119 R)
• M12: 10,703,129 km (0.079 R)
• M13: 11,799,382 km (0.12 R)
• M14: 12,716,118 km (0.081 R)
• M15: 13,877,895 km (0.098 R)
• M16: 16,560,035 km (0.079 R)
• M17: 16,861,026 km (0.081 R)
• M18: 18,663,082 km (0.082 R)
• M19: 20,331,398 km (0.047 R)
• M20: 21,025,682 km (0.114 R)
• M21: 22,187,309 km (0.105 R)
• M22: 23,391,273 km (0.087 R)
• M23: 25,228,335 km (0.114 R)
• M24: 26,232,884 km (0.1 R)
• M25: 27,055,373 km (0.034 R)
• M26: 31,084,642 km (0.055 R)
• M27: 33,660,718 km (0.119 R)
• M28: 35,000,516 km (0.073 R)
• M29: 37,786,178 km (0.075 R)
• M30: 38,834,710 km (0.115 R)
• M31: 42,376,439 km (0.103 R)
• M32: 43,651,013 km (0.09 R)
• M33: 48,236,487 km (0.099 R)
• M34: 49,314,489 km (0.111 R)
• M35: 54,282,635 km (0.099 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 244 - 12,726 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit