🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.9

Radius: 14.3

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.78 AU - 1.2 AU

Year: 692 Days

Day: 5.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 77,565,110 km

• M1: 178,021 km (0.116 R)
• M2: 635,342 km (0.12 R)
• M3: 1,082,789 km (0.088 R)
• M4: 1,821,653 km (0.109 R)
• M5: 2,281,068 km (0.069 R)
• M6: 2,767,561 km (0.116 R)
• M7: 3,277,689 km (0.111 R)
• M8: 3,837,784 km (0.108 R)
• M9: 4,461,756 km (0.107 R)
• M10: 5,121,184 km (0.05 R)
• M11: 5,574,316 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.8

Radius: 8.4

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.18 AU - 1.3 AU

Year: 971 Days

Day: 14.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 77,565,110 km

• M1: 104,569 km (0.093 R)
• M2: 391,348 km (0.105 R)
• M3: 660,026 km (0.106 R)
• M4: 1,064,389 km (0.039 R)
• M5: 1,432,400 km (0.06 R)
• M6: 1,733,989 km (0.1 R)
• M7: 2,257,581 km (0.072 R)
• M8: 2,536,881 km (0.067 R)
• M9: 2,926,882 km (0.104 R)
• M10: 3,593,191 km (0.072 R)
• M11: 4,504,093 km (0.107 R)
• M12: 5,822,798 km (0.118 R)
• M13: 6,258,726 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350.8

Radius: 14

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.11 AU - 2.29 AU

Year: 2294 Days

Day: 8.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 77,565,110 km

• M1: 174,282 km (0.105 R)
• M2: 684,261 km (0.029 R)
• M3: 1,666,819 km (0.078 R)
• M4: 3,590,199 km (0.06 R)
• M5: 4,677,177 km (0.085 R)
• M6: 5,148,261 km (0.11 R)
• M7: 5,673,798 km (0.111 R)
• M8: 7,524,324 km (0.115 R)
• M9: 8,001,242 km (0.054 R)
• M10: 8,984,699 km (0.061 R)
• M11: 10,013,932 km (0.072 R)
• M12: 11,013,246 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.9

Radius: 9.4

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 3.07 AU - 3.83 AU

Year: 4504 Days

Day: 14.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 47.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 77,565,110 km

• M1: 117,135 km (0.077 R)
• M2: 430,393 km (0.104 R)
• M3: 768,783 km (0.115 R)
• M4: 1,165,667 km (0.09 R)
• M5: 1,797,119 km (0.086 R)
• M6: 2,309,193 km (0.035 R)
• M7: 2,708,320 km (0.084 R)
• M8: 3,209,772 km (0.043 R)
• M9: 3,584,515 km (0.066 R)
• M10: 4,077,140 km (0.077 R)
• M11: 4,737,316 km (0.056 R)
• M12: 5,198,227 km (0.082 R)
• M13: 6,003,512 km (0.065 R)
• M14: 7,314,139 km (0.088 R)
• M15: 8,251,819 km (0.039 R)
• M16: 8,958,369 km (0.109 R)
• M17: 11,231,359 km (0.065 R)
• M18: 13,108,813 km (0.11 R)
• M19: 14,647,876 km (0.083 R)
• M20: 15,906,891 km (0.074 R)
• M21: 20,848,707 km (0.05 R)
• M22: 23,519,179 km (0.11 R)
• M23: 24,708,781 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 86.9

Radius: 14.4

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 4.26 AU - 4.34 AU

Year: 6268 Days

Day: 13.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 77,565,110 km

• M1: 179,069 km (0.082 R)
• M2: 1,759,570 km (0.043 R)
• M3: 2,852,831 km (0.085 R)
• M4: 5,548,884 km (0.107 R)
• M5: 6,193,651 km (0.046 R)
• M6: 9,700,824 km (0.108 R)
• M7: 13,293,416 km (0.116 R)
• M8: 15,626,844 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 744

Radius: 10.2

Gravity: 7.15 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 4.16 AU - 6.64 AU

Year: 8821 Days

Day: 10 Hours

Environment

Temp: -223 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 77,565,110 km

• M1: 126,859 km (0.059 R)
• M2: 472,280 km (0.119 R)
• M3: 876,195 km (0.119 R)
• M4: 1,871,769 km (0.051 R)
• M5: 2,288,399 km (0.064 R)
• M6: 2,933,165 km (0.084 R)
• M7: 3,287,264 km (0.048 R)
• M8: 4,439,915 km (0.045 R)
• M9: 4,818,547 km (0.065 R)
• M10: 5,981,372 km (0.104 R)
• M11: 6,665,932 km (0.104 R)
• M12: 7,563,668 km (0.083 R)
• M13: 10,384,187 km (0.093 R)
• M14: 11,752,409 km (0.11 R)
• M15: 12,252,963 km (0.104 R)
• M16: 16,714,420 km (0.115 R)
• M17: 17,924,218 km (0.059 R)
• M18: 19,039,321 km (0.105 R)
• M19: 19,886,045 km (0.1 R)
• M20: 20,677,268 km (0.093 R)
• M21: 21,489,435 km (0.047 R)
• M22: 23,525,462 km (0.096 R)
• M23: 27,392,268 km (0.109 R)
• M24: 29,273,162 km (0.071 R)
• M25: 31,556,773 km (0.07 R)
• M26: 32,415,914 km (0.098 R)
• M27: 32,960,749 km (0.105 R)
• M28: 33,400,866 km (0.105 R)
• M29: 34,068,671 km (0.095 R)
• M30: 34,745,153 km (0.098 R)
• M31: 35,430,610 km (0.088 R)
• M32: 40,989,069 km (0.077 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 344.8

Radius: 7.2

Gravity: 6.65 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 5.02 AU - 5.94 AU

Year: 9017 Days

Day: 23.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 77,565,110 km

• M1: 89,609 km (0.092 R)
• M2: 325,375 km (0.107 R)
• M3: 631,004 km (0.091 R)
• M4: 885,619 km (0.038 R)
• M5: 1,274,723 km (0.076 R)
• M6: 2,099,606 km (0.093 R)
• M7: 3,217,701 km (0.098 R)
• M8: 3,477,702 km (0.092 R)
• M9: 4,607,315 km (0.114 R)
• M10: 5,080,942 km (0.078 R)
• M11: 5,804,547 km (0.106 R)
• M12: 6,257,230 km (0.069 R)
• M13: 6,980,087 km (0.062 R)
• M14: 8,673,385 km (0.037 R)
• M15: 9,526,841 km (0.109 R)
• M16: 10,065,244 km (0.08 R)
• M17: 11,153,419 km (0.046 R)
• M18: 11,853,088 km (0.108 R)
• M19: 13,956,135 km (0.047 R)
• M20: 15,125,691 km (0.111 R)
• M21: 15,796,189 km (0.1 R)
• M22: 16,935,676 km (0.046 R)
• M23: 19,236,042 km (0.067 R)
• M24: 20,022,927 km (0.091 R)
• M25: 22,433,547 km (0.078 R)
• M26: 24,034,693 km (0.05 R)
• M27: 24,446,536 km (0.119 R)
• M28: 25,624,918 km (0.084 R)
• M29: 26,054,713 km (0.074 R)
• M30: 27,822,511 km (0.09 R)
• M31: 29,574,601 km (0.119 R)
• M32: 32,388,537 km (0.049 R)
• M33: 33,093,592 km (0.038 R)
• M34: 34,953,542 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 81.2

Radius: 6.6

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 6.62 AU - 10.14 AU

Year: 17052 Days

Day: 22.8 Hours

Environment

Temp: -238 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 77,565,110 km

• M1: 82,129 km (0.061 R)
• M2: 383,719 km (0.062 R)
• M3: 749,336 km (0.047 R)
• M4: 1,243,607 km (0.099 R)
• M5: 1,794,127 km (0.1 R)
• M6: 2,478,238 km (0.101 R)
• M7: 3,585,113 km (0.085 R)
• M8: 5,449,551 km (0.066 R)
• M9: 7,251,458 km (0.098 R)
• M10: 8,306,422 km (0.119 R)
• M11: 10,716,892 km (0.116 R)
• M12: 12,030,661 km (0.095 R)
• M13: 13,944,616 km (0.114 R)
• M14: 14,225,710 km (0.072 R)
• M15: 14,510,395 km (0.088 R)
• M16: 16,299,586 km (0.108 R)
• M17: 17,965,059 km (0.04 R)
• M18: 22,387,920 km (0.116 R)
• M19: 24,036,638 km (0.099 R)
• M20: 26,018,211 km (0.11 R)
• M21: 27,573,880 km (0.081 R)
• M22: 33,607,610 km (0.066 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 953.2

Radius: 3

Gravity: 105.91 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 7.84 AU - 9.18 AU

Year: 17450 Days

Day: 18.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 77,565,110 km

• M1: 37,250 km (0.052 R)
• M2: 134,937 km (0.071 R)
• M3: 512,373 km (0.117 R)
• M4: 724,951 km (0.09 R)
• M5: 829,520 km (0.103 R)
• M6: 1,368,671 km (0.069 R)
• M7: 1,632,113 km (0.063 R)
• M8: 1,908,570 km (0.116 R)
• M9: 2,215,395 km (0.037 R)
• M10: 2,874,373 km (0.077 R)
• M11: 3,807,266 km (0.114 R)
• M12: 4,999,112 km (0.074 R)
• M13: 6,507,208 km (0.11 R)
• M14: 7,149,282 km (0.105 R)
• M15: 7,583,565 km (0.077 R)
• M16: 9,497,520 km (0.06 R)
• M17: 10,200,929 km (0.114 R)
• M18: 11,320,071 km (0.075 R)
• M19: 15,242,228 km (0.063 R)
• M20: 17,120,429 km (0.053 R)
• M21: 18,514,382 km (0.1 R)
• M22: 19,330,738 km (0.081 R)
• M23: 22,326,285 km (0.105 R)
• M24: 22,631,615 km (0.045 R)
• M25: 26,629,319 km (0.084 R)
• M26: 27,902,845 km (0.109 R)
• M27: 29,459,411 km (0.104 R)
• M28: 30,196,929 km (0.111 R)
• M29: 31,965,624 km (0.096 R)
• M30: 36,686,933 km (0.116 R)
• M31: 42,161,168 km (0.103 R)
• M32: 42,940,274 km (0.104 R)
• M33: 45,497,799 km (0.103 R)
• M34: 45,988,330 km (0.114 R)
• M35: 46,152,589 km (0.103 R)
• M36: 46,980,015 km (0.113 R)
• M37: 54,691,934 km (0.082 R)
• M38: 58,652,837 km (0.118 R)
• M39: 59,818,653 km (0.075 R)
• M40: 61,795,739 km (0.094 R)
• M41: 64,225,358 km (0.044 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 292 - 11,941 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit