🌌 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: 2.8

Radius: 1.51

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.61 AU - 0.67 AU

Year: 331 Days

Day: 29.8 Hours

Environment

Temp: -129 °C

Axial Tilt: 21.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 78,305,824 km

• M1: 35,155 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 640.5

Radius: 13.3

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.82 AU - 1.04 AU

Year: 579 Days

Day: 7.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 78,305,824 km

• M1: 165,455 km (0.106 R)
• M2: 662,120 km (0.088 R)
• M3: 1,095,655 km (0.087 R)
• M4: 1,579,454 km (0.098 R)
• M5: 2,037,972 km (0.115 R)
• M6: 2,474,947 km (0.066 R)
• M7: 3,066,906 km (0.044 R)
• M8: 4,462,056 km (0.06 R)
• M9: 5,226,202 km (0.114 R)
• M10: 6,001,567 km (0.087 R)
• M11: 6,731,904 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 377.8

Radius: 12.3

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1 AU - 1.54 AU

Year: 924 Days

Day: 11.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 78,305,824 km

• M1: 153,039 km (0.056 R)
• M2: 536,159 km (0.074 R)
• M3: 920,177 km (0.05 R)
• M4: 1,471,445 km (0.109 R)
• M5: 1,959,583 km (0.098 R)
• M6: 2,902,947 km (0.087 R)
• M7: 4,388,304 km (0.045 R)
• M8: 4,824,531 km (0.112 R)
• M9: 5,397,042 km (0.101 R)
• M10: 6,171,062 km (0.074 R)
• M11: 6,554,332 km (0.045 R)
• M12: 7,235,750 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 305.9

Radius: 12.3

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.7 AU - 2.36 AU

Year: 1867 Days

Day: 5.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 78,305,824 km

• M1: 153,487 km (0.106 R)
• M2: 621,579 km (0.118 R)
• M3: 1,159,533 km (0.099 R)
• M4: 1,595,012 km (0.117 R)
• M5: 2,003,415 km (0.103 R)
• M6: 2,387,881 km (0.059 R)
• M7: 2,835,328 km (0.112 R)
• M8: 3,294,594 km (0.078 R)
• M9: 4,276,106 km (0.094 R)
• M10: 5,000,010 km (0.026 R)
• M11: 5,760,864 km (0.099 R)
• M12: 7,032,745 km (0.104 R)
• M13: 7,801,230 km (0.109 R)
• M14: 9,936,889 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 434.6

Radius: 14

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 3.41 AU - 5.11 AU

Year: 5677 Days

Day: 11.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 78,305,824 km

• M1: 174,132 km (0.098 R)
• M2: 633,996 km (0.063 R)
• M3: 1,164,470 km (0.044 R)
• M4: 1,983,817 km (0.029 R)
• M5: 2,581,162 km (0.066 R)
• M6: 3,297,287 km (0.103 R)
• M7: 3,831,650 km (0.091 R)
• M8: 5,023,945 km (0.113 R)
• M9: 6,115,711 km (0.118 R)
• M10: 6,638,854 km (0.12 R)
• M11: 7,531,206 km (0.063 R)
• M12: 8,169,540 km (0.038 R)
• M13: 8,767,183 km (0.109 R)
• M14: 9,274,021 km (0.076 R)
• M15: 10,134,209 km (0.112 R)
• M16: 11,409,082 km (0.095 R)
• M17: 12,837,592 km (0.087 R)
• M18: 13,339,343 km (0.1 R)
• M19: 14,011,337 km (0.094 R)
• M20: 15,255,392 km (0.045 R)
• M21: 19,364,996 km (0.107 R)
• M22: 23,484,622 km (0.117 R)
• M23: 25,315,999 km (0.047 R)
• M24: 26,588,778 km (0.098 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 468.6

Radius: 4.9

Gravity: 19.52 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 7.14 AU - 7.98 AU

Year: 13421 Days

Day: 16.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 78,305,824 km

• M1: 60,886 km (0.118 R)
• M2: 227,389 km (0.106 R)
• M3: 862,881 km (0.103 R)
• M4: 1,140,085 km (0.091 R)
• M5: 1,488,798 km (0.042 R)
• M6: 1,680,582 km (0.053 R)
• M7: 2,025,406 km (0.094 R)
• M8: 2,475,695 km (0.114 R)
• M9: 2,746,019 km (0.12 R)
• M10: 3,345,906 km (0.102 R)
• M11: 4,523,241 km (0.111 R)
• M12: 5,356,053 km (0.065 R)
• M13: 6,099,554 km (0.064 R)
• M14: 6,324,250 km (0.052 R)
• M15: 7,702,495 km (0.094 R)
• M16: 8,554,156 km (0.103 R)
• M17: 8,930,843 km (0.069 R)
• M18: 10,179,537 km (0.068 R)
• M19: 12,532,113 km (0.088 R)
• M20: 13,642,727 km (0.089 R)
• M21: 14,884,689 km (0.095 R)
• M22: 15,292,044 km (0.115 R)
• M23: 15,637,166 km (0.118 R)
• M24: 16,486,583 km (0.086 R)
• M25: 20,028,462 km (0.081 R)
• M26: 22,063,292 km (0.111 R)
• M27: 23,953,312 km (0.087 R)
• M28: 26,538,513 km (0.078 R)
• M29: 27,237,883 km (0.088 R)
• M30: 29,515,809 km (0.086 R)
• M31: 32,708,378 km (0.12 R)
• M32: 35,278,469 km (0.091 R)
• M33: 37,230,123 km (0.047 R)
• M34: 37,854,395 km (0.092 R)
• M35: 40,029,398 km (0.043 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 452.1

Radius: 7.3

Gravity: 8.48 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 8.41 AU - 8.77 AU

Year: 16256 Days

Day: 23.5 Hours

Environment

Temp: -237 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 78,305,824 km

• M1: 90,806 km (0.105 R)
• M2: 473,627 km (0.093 R)
• M3: 800,797 km (0.092 R)
• M4: 1,199,625 km (0.111 R)
• M5: 1,438,384 km (0.076 R)
• M6: 1,741,319 km (0.092 R)
• M7: 2,104,992 km (0.074 R)
• M8: 2,800,921 km (0.053 R)
• M9: 3,378,219 km (0.098 R)
• M10: 4,237,958 km (0.117 R)
• M11: 4,898,133 km (0.025 R)
• M12: 6,541,466 km (0.104 R)
• M13: 8,190,633 km (0.087 R)
• M14: 11,042,268 km (0.112 R)
• M15: 11,505,722 km (0.101 R)
• M16: 11,921,903 km (0.09 R)
• M17: 12,225,138 km (0.082 R)
• M18: 12,974,324 km (0.109 R)
• M19: 14,701,731 km (0.088 R)
• M20: 17,261,799 km (0.111 R)
• M21: 17,650,305 km (0.072 R)
• M22: 21,324,428 km (0.025 R)
• M23: 23,910,527 km (0.111 R)
• M24: 24,199,400 km (0.084 R)
• M25: 32,085,901 km (0.111 R)
• M26: 33,748,681 km (0.092 R)
• M27: 34,601,240 km (0.043 R)
• M28: 39,615,910 km (0.061 R)
• M29: 44,947,877 km (0.069 R)
• M30: 48,397,006 km (0.096 R)
• M31: 54,143,209 km (0.076 R)
• M32: 54,641,669 km (0.065 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 879.3

Radius: 4.2

Gravity: 49.85 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 7.51 AU - 9.77 AU

Year: 16398 Days

Day: 23 Hours

Environment

Temp: -225 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 78,305,824 km

• M1: 52,359 km (0.067 R)
• M2: 365,767 km (0.096 R)
• M3: 771,626 km (0.117 R)
• M4: 1,065,436 km (0.105 R)
• M5: 3,050,600 km (0.093 R)
• M6: 3,838,981 km (0.083 R)
• M7: 5,004,797 km (0.035 R)
• M8: 6,260,521 km (0.08 R)
• M9: 6,781,271 km (0.108 R)
• M10: 7,859,124 km (0.115 R)
• M11: 8,107,756 km (0.056 R)
• M12: 8,778,702 km (0.066 R)
• M13: 9,100,637 km (0.053 R)
• M14: 10,171,758 km (0.071 R)
• M15: 14,843,550 km (0.091 R)
• M16: 16,321,576 km (0.07 R)
• M17: 22,913,607 km (0.05 R)
• M18: 27,183,279 km (0.094 R)
• M19: 27,637,309 km (0.093 R)
• M20: 28,912,032 km (0.09 R)
• M21: 30,835,412 km (0.111 R)
• M22: 34,668,409 km (0.081 R)
• M23: 42,956,131 km (0.116 R)
• M24: 49,213,810 km (0.105 R)
• M25: 52,121,693 km (0.098 R)
• M26: 53,706,683 km (0.036 R)
• M27: 55,142,074 km (0.04 R)
• M28: 61,140,051 km (0.087 R)
• M29: 64,496,579 km (0.12 R)
• M30: 65,101,403 km (0.109 R)
• M31: 66,322,271 km (0.113 R)
• M32: 66,732,618 km (0.088 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 657.5

Radius: 7.7

Gravity: 11.09 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 9.81 AU - 10.77 AU

Year: 21313 Days

Day: 25 Hours

Environment

Temp: -232 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 78,305,824 km

• M1: 96,491 km (0.031 R)
• M2: 344,225 km (0.064 R)
• M3: 1,022,801 km (0.117 R)
• M4: 1,758,074 km (0.044 R)
• M5: 2,083,300 km (0.106 R)
• M6: 2,448,319 km (0.076 R)
• M7: 3,391,833 km (0.11 R)
• M8: 4,089,557 km (0.119 R)
• M9: 5,848,828 km (0.097 R)
• M10: 9,353,607 km (0.075 R)
• M11: 10,470,355 km (0.091 R)
• M12: 10,840,909 km (0.073 R)
• M13: 12,139,418 km (0.113 R)
• M14: 12,617,384 km (0.106 R)
• M15: 14,579,659 km (0.106 R)
• M16: 14,964,275 km (0.094 R)
• M17: 16,076,984 km (0.065 R)
• M18: 16,737,010 km (0.084 R)
• M19: 18,376,902 km (0.118 R)
• M20: 19,745,273 km (0.055 R)
• M21: 21,574,257 km (0.106 R)
• M22: 22,888,923 km (0.115 R)
• M23: 25,454,826 km (0.095 R)
• M24: 27,152,462 km (0.112 R)
• M25: 29,409,296 km (0.101 R)
• M26: 31,277,175 km (0.052 R)
• M27: 32,045,958 km (0.088 R)
• M28: 34,563,840 km (0.115 R)
• M29: 34,836,258 km (0.118 R)
• M30: 36,501,282 km (0.085 R)
• M31: 42,590,364 km (0.101 R)
• M32: 44,492,800 km (0.08 R)
• M33: 45,792,058 km (0.093 R)
• M34: 47,116,597 km (0.054 R)
• M35: 49,495,503 km (0.065 R)
• M36: 59,617,444 km (0.088 R)
• M37: 62,397,721 km (0.106 R)
• M38: 76,443,764 km (0.112 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 347 - 14,732 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit