🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168

Radius: 11.1

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.5 AU - 0.7 AU

Year: 310 Days

Day: 14 Hours

Environment

Temp: -150 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 67,034,744 km

• M1: 138,079 km (0.103 R)
• M2: 534,812 km (0.119 R)
• M3: 1,131,259 km (0.052 R)
• M4: 1,757,625 km (0.095 R)
• M5: 2,293,036 km (0.033 R)
• M6: 2,697,998 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.4

Radius: 9.4

Gravity: 10.44 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.49 AU - 0.77 AU

Year: 333 Days

Day: 9.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 67,034,744 km

• M1: 116,986 km (0.109 R)
• M2: 432,787 km (0.096 R)
• M3: 812,167 km (0.048 R)
• M4: 1,287,738 km (0.117 R)
• M5: 1,774,829 km (0.112 R)
• M6: 2,491,403 km (0.086 R)
• M7: 3,163,397 km (0.069 R)
• M8: 3,799,188 km (0.118 R)
• M9: 4,108,107 km (0.115 R)
• M10: 4,405,956 km (0.034 R)
• M11: 4,703,656 km (0.041 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.4

Radius: 14.6

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.83 AU - 1.29 AU

Year: 728 Days

Day: 12.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 67,034,744 km

• M1: 181,612 km (0.074 R)
• M2: 647,460 km (0.071 R)
• M3: 1,106,426 km (0.092 R)
• M4: 1,654,403 km (0.026 R)
• M5: 2,228,709 km (0.11 R)
• M6: 2,743,027 km (0.115 R)
• M7: 3,296,389 km (0.116 R)
• M8: 4,219,707 km (0.066 R)
• M9: 5,143,025 km (0.05 R)
• M10: 5,653,304 km (0.07 R)
• M11: 6,218,335 km (0.111 R)
• M12: 7,068,051 km (0.11 R)
• M13: 7,944,694 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.1

Radius: 8.5

Gravity: 10.56 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.54 AU - 2.16 AU

Year: 1678 Days

Day: 10.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 67,034,744 km

• M1: 105,766 km (0.074 R)
• M2: 385,065 km (0.035 R)
• M3: 794,514 km (0.094 R)
• M4: 1,132,755 km (0.074 R)
• M5: 1,674,150 km (0.053 R)
• M6: 1,982,022 km (0.106 R)
• M7: 2,353,175 km (0.06 R)
• M8: 2,699,793 km (0.09 R)
• M9: 3,157,413 km (0.096 R)
• M10: 3,631,488 km (0.105 R)
• M11: 4,539,996 km (0.11 R)
• M12: 4,804,784 km (0.1 R)
• M13: 5,166,662 km (0.113 R)
• M14: 5,685,168 km (0.104 R)
• M15: 6,387,979 km (0.119 R)
• M16: 6,985,473 km (0.098 R)
• M17: 7,619,618 km (0.114 R)
• M18: 8,939,370 km (0.096 R)
• M19: 10,230,998 km (0.091 R)
• M20: 10,510,597 km (0.086 R)
• M21: 11,158,505 km (0.112 R)
• M22: 12,773,564 km (0.04 R)
• M23: 13,180,021 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561.3

Radius: 13.8

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 2.94 AU - 4.6 AU

Year: 4881 Days

Day: 11.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 67,034,744 km

• M1: 173,534 km (0.044 R)
• M2: 603,478 km (0.117 R)
• M3: 1,120,338 km (0.096 R)
• M4: 1,712,148 km (0.09 R)
• M5: 2,219,135 km (0.099 R)
• M6: 2,673,164 km (0.099 R)
• M7: 3,403,052 km (0.093 R)
• M8: 3,837,485 km (0.109 R)
• M9: 4,547,476 km (0.111 R)
• M10: 5,704,316 km (0.07 R)
• M11: 6,444,377 km (0.117 R)
• M12: 7,081,963 km (0.079 R)
• M13: 7,621,862 km (0.076 R)
• M14: 8,116,881 km (0.068 R)
• M15: 8,822,983 km (0.078 R)
• M16: 10,529,745 km (0.061 R)
• M17: 11,923,997 km (0.051 R)
• M18: 13,952,993 km (0.076 R)
• M19: 14,588,186 km (0.078 R)
• M20: 15,298,028 km (0.051 R)
• M21: 15,859,469 km (0.09 R)
• M22: 18,120,042 km (0.117 R)
• M23: 20,050,752 km (0.086 R)
• M24: 24,091,091 km (0.096 R)
• M25: 24,852,096 km (0.114 R)
• M26: 26,341,941 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.1

Radius: 8.1

Gravity: 11.97 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 3.88 AU - 5.96 AU

Year: 7277 Days

Day: 12.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 67,034,744 km

• M1: 109,506 km (0.098 R)
• M2: 531,820 km (0.053 R)
• M3: 906,413 km (0.099 R)
• M4: 1,193,791 km (0.1 R)
• M5: 1,555,668 km (0.074 R)
• M6: 2,118,306 km (0.045 R)
• M7: 2,483,773 km (0.116 R)
• M8: 2,850,288 km (0.114 R)
• M9: 3,456,160 km (0.06 R)
• M10: 4,466,992 km (0.118 R)
• M11: 6,690,316 km (0.038 R)
• M12: 7,958,906 km (0.108 R)
• M13: 8,373,142 km (0.066 R)
• M14: 8,845,273 km (0.094 R)
• M15: 9,937,188 km (0.12 R)
• M16: 11,218,644 km (0.111 R)
• M17: 11,529,358 km (0.069 R)
• M18: 13,516,018 km (0.105 R)
• M19: 15,085,748 km (0.112 R)
• M20: 15,785,119 km (0.083 R)
• M21: 16,175,569 km (0.112 R)
• M22: 18,367,776 km (0.047 R)
• M23: 18,799,964 km (0.053 R)
• M24: 19,759,336 km (0.094 R)
• M25: 24,010,159 km (0.088 R)
• M26: 24,526,870 km (0.091 R)
• M27: 26,759,618 km (0.049 R)
• M28: 29,417,224 km (0.106 R)
• M29: 34,482,908 km (0.087 R)
• M30: 36,821,272 km (0.084 R)
• M31: 38,437,677 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 109.6

Radius: 5.3

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 5.62 AU - 5.92 AU

Year: 9243 Days

Day: 17.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 67,034,744 km

• M1: 83,924 km (0.116 R)
• M2: 265,835 km (0.097 R)
• M3: 503,696 km (0.107 R)
• M4: 792,420 km (0.11 R)
• M5: 1,085,931 km (0.087 R)
• M6: 1,689,708 km (0.107 R)
• M7: 2,339,860 km (0.084 R)
• M8: 2,875,271 km (0.079 R)
• M9: 3,528,415 km (0.079 R)
• M10: 4,698,720 km (0.106 R)
• M11: 5,021,253 km (0.108 R)
• M12: 5,573,269 km (0.103 R)
• M13: 7,572,046 km (0.045 R)
• M14: 12,863,921 km (0.105 R)
• M15: 15,511,205 km (0.106 R)
• M16: 16,393,533 km (0.081 R)
• M17: 17,720,017 km (0.089 R)
• M18: 18,017,418 km (0.107 R)
• M19: 18,992,048 km (0.087 R)
• M20: 20,129,740 km (0.068 R)
• M21: 21,245,441 km (0.096 R)
• M22: 21,920,576 km (0.084 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 957

Radius: 7.2

Gravity: 18.46 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 5.29 AU - 8.72 AU

Year: 12350 Days

Day: 15.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 67,034,744 km

• M1: 89,609 km (0.086 R)
• M2: 612,454 km (0.115 R)
• M3: 848,818 km (0.115 R)
• M4: 1,159,683 km (0.066 R)
• M5: 1,703,172 km (0.084 R)
• M6: 1,978,282 km (0.104 R)
• M7: 2,343,451 km (0.114 R)
• M8: 2,753,050 km (0.034 R)
• M9: 3,743,088 km (0.111 R)
• M10: 4,031,513 km (0.084 R)
• M11: 4,587,867 km (0.086 R)
• M12: 5,702,222 km (0.103 R)
• M13: 21,671,645 km (0.119 R)
• M14: 24,846,411 km (0.087 R)
• M15: 26,177,982 km (0.119 R)
• M16: 31,981,033 km (0.086 R)
• M17: 45,290,456 km (0.085 R)
• M18: 45,591,746 km (0.071 R)
• M19: 48,995,397 km (0.075 R)
• M20: 53,735,555 km (0.084 R)
• M21: 54,073,347 km (0.091 R)
• M22: 55,956,336 km (0.077 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 331.7

Radius: 4.3

Gravity: 17.94 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 10.43 AU - 11.23 AU

Year: 23767 Days

Day: 18.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 67,034,744 km

• M1: 53,406 km (0.111 R)
• M2: 190,737 km (0.081 R)
• M3: 394,340 km (0.111 R)
• M4: 700,716 km (0.041 R)
• M5: 922,720 km (0.066 R)
• M6: 1,620,444 km (0.114 R)
• M7: 1,935,348 km (0.102 R)
• M8: 2,876,318 km (0.107 R)
• M9: 3,529,463 km (0.059 R)
• M10: 4,806,280 km (0.114 R)
• M11: 6,362,846 km (0.039 R)
• M12: 6,788,153 km (0.097 R)
• M13: 6,963,332 km (0.095 R)
• M14: 8,128,251 km (0.103 R)
• M15: 8,326,019 km (0.052 R)
• M16: 11,879,567 km (0.11 R)
• M17: 12,134,332 km (0.09 R)
• M18: 12,457,912 km (0.113 R)
• M19: 13,326,178 km (0.113 R)
• M20: 13,740,265 km (0.095 R)
• M21: 19,135,812 km (0.077 R)
• M22: 19,485,871 km (0.09 R)
• M23: 21,114,543 km (0.091 R)
• M24: 22,733,940 km (0.058 R)
• M25: 25,367,909 km (0.11 R)
• M26: 26,432,897 km (0.12 R)
• M27: 27,195,846 km (0.099 R)
• M28: 32,207,674 km (0.039 R)
• M29: 32,827,607 km (0.117 R)
• M30: 38,076,248 km (0.11 R)
• M31: 41,188,333 km (0.098 R)
• M32: 48,882,750 km (0.06 R)
• M33: 51,029,479 km (0.113 R)
• M34: 54,453,475 km (0.105 R)
• M35: 55,687,059 km (0.047 R)
• M36: 64,848,583 km (0.076 R)
• M37: 66,234,158 km (0.107 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 290 - 14,018 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit