🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631.3

Radius: 12.4

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.67 AU - 0.71 AU

Year: 389 Days

Day: 5.6 Hours

Environment

Temp: -148 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 75,907,799 km

• M1: 154,385 km (0.106 R)
• M2: 564,732 km (0.061 R)
• M3: 1,019,210 km (0.071 R)
• M4: 1,435,691 km (0.108 R)
• M5: 2,210,009 km (0.099 R)
• M6: 2,602,405 km (0.11 R)
• M7: 3,721,247 km (0.092 R)
• M8: 4,472,228 km (0.078 R)
• M9: 5,092,312 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 898.9

Radius: 14.2

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.7 AU - 0.82 AU

Year: 449 Days

Day: 11.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 75,907,799 km

• M1: 176,675 km (0.094 R)
• M2: 825,780 km (0.062 R)
• M3: 1,585,139 km (0.114 R)
• M4: 2,362,749 km (0.085 R)
• M5: 2,867,791 km (0.117 R)
• M6: 3,544,722 km (0.08 R)
• M7: 4,183,804 km (0.101 R)
• M8: 5,058,054 km (0.116 R)
• M9: 5,888,920 km (0.083 R)
• M10: 6,422,386 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 332.8

Radius: 9.5

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.62 AU - 0.94 AU

Year: 467 Days

Day: 12.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 75,907,799 km

• M1: 118,332 km (0.062 R)
• M2: 456,573 km (0.064 R)
• M3: 828,323 km (0.079 R)
• M4: 1,216,979 km (0.073 R)
• M5: 1,733,391 km (0.104 R)
• M6: 2,287,351 km (0.078 R)
• M7: 3,162,798 km (0.087 R)
• M8: 3,832,548 km (0.103 R)
• M9: 4,404,760 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 853.2

Radius: 11

Gravity: 7.05 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.71 AU - 0.85 AU

Year: 467 Days

Day: 10.2 Hours

Environment

Temp: -169 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 75,907,799 km

• M1: 136,732 km (0.103 R)
• M2: 499,208 km (0.099 R)
• M3: 884,423 km (0.051 R)
• M4: 1,331,421 km (0.114 R)
• M5: 2,125,487 km (0.111 R)
• M6: 2,781,623 km (0.09 R)
• M7: 3,671,431 km (0.071 R)
• M8: 4,119,028 km (0.093 R)
• M9: 5,042,795 km (0.107 R)
• M10: 5,755,628 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.6

Radius: 11.6

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.04 AU - 2.18 AU

Year: 2079 Days

Day: 8 Hours

Environment

Temp: -196 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 75,907,799 km

• M1: 145,110 km (0.096 R)
• M2: 518,805 km (0.108 R)
• M3: 1,102,985 km (0.067 R)
• M4: 1,578,258 km (0.108 R)
• M5: 2,264,613 km (0.077 R)
• M6: 2,684,833 km (0.061 R)
• M7: 3,125,100 km (0.074 R)
• M8: 3,738,900 km (0.076 R)
• M9: 4,152,687 km (0.101 R)
• M10: 4,534,461 km (0.082 R)
• M11: 5,162,772 km (0.049 R)
• M12: 5,701,773 km (0.111 R)
• M13: 6,123,938 km (0.094 R)
• M14: 7,087,498 km (0.075 R)
• M15: 9,247,093 km (0.052 R)
• M16: 9,901,883 km (0.114 R)
• M17: 11,655,170 km (0.085 R)
• M18: 12,378,625 km (0.098 R)
• M19: 15,101,307 km (0.061 R)
• M20: 16,255,005 km (0.092 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 894.1

Radius: 3.3

Gravity: 82.1 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 5.74 AU - 5.94 AU

Year: 9572 Days

Day: 21.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 75,907,799 km

• M1: 40,990 km (0.059 R)
• M2: 174,581 km (0.119 R)
• M3: 362,924 km (0.087 R)
• M4: 472,580 km (0.095 R)
• M5: 1,052,870 km (0.089 R)
• M6: 1,541,008 km (0.102 R)
• M7: 1,952,252 km (0.049 R)
• M8: 2,258,329 km (0.106 R)
• M9: 2,472,703 km (0.076 R)
• M10: 2,874,972 km (0.107 R)
• M11: 3,270,359 km (0.071 R)
• M12: 4,581,584 km (0.119 R)
• M13: 5,386,870 km (0.043 R)
• M14: 7,652,529 km (0.078 R)
• M15: 10,588,687 km (0.053 R)
• M16: 12,752,919 km (0.087 R)
• M17: 19,016,283 km (0.087 R)
• M18: 21,920,127 km (0.106 R)
• M19: 22,269,737 km (0.11 R)
• M20: 23,250,202 km (0.065 R)
• M21: 23,705,279 km (0.119 R)
• M22: 23,888,985 km (0.087 R)
• M23: 25,488,784 km (0.118 R)
• M24: 31,593,724 km (0.045 R)
• M25: 35,639,150 km (0.098 R)
• M26: 40,016,533 km (0.056 R)
• M27: 41,065,064 km (0.052 R)
• M28: 42,266,335 km (0.099 R)
• M29: 44,598,865 km (0.106 R)
• M30: 46,296,203 km (0.1 R)
• M31: 48,477,639 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 651.9

Radius: 3.8

Gravity: 45.15 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 6.95 AU - 7.27 AU

Year: 12859 Days

Day: 24.5 Hours

Environment

Temp: -235 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 75,907,799 km

• M1: 48,619 km (0.067 R)
• M2: 271,221 km (0.103 R)
• M3: 681,717 km (0.057 R)
• M4: 826,977 km (0.119 R)
• M5: 2,539,424 km (0.104 R)
• M6: 2,667,928 km (0.07 R)
• M7: 4,028,671 km (0.083 R)
• M8: 4,384,115 km (0.057 R)
• M9: 4,792,368 km (0.103 R)
• M10: 6,762,721 km (0.12 R)
• M11: 10,309,238 km (0.094 R)
• M12: 12,139,718 km (0.057 R)
• M13: 13,581,841 km (0.117 R)
• M14: 14,176,044 km (0.104 R)
• M15: 21,275,061 km (0.092 R)
• M16: 22,528,841 km (0.114 R)
• M17: 26,482,114 km (0.099 R)
• M18: 31,326,393 km (0.068 R)
• M19: 32,129,284 km (0.105 R)
• M20: 37,109,846 km (0.116 R)
• M21: 37,365,060 km (0.095 R)
• M22: 41,610,947 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 45.9

Radius: 6.9

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 6.54 AU - 9.5 AU

Year: 15405 Days

Day: 20.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 75,907,799 km

• M1: 308,770 km (0.092 R)
• M2: 2,366,638 km (0.102 R)
• M3: 4,631,251 km (0.098 R)
• M4: 12,040,684 km (0.11 R)
• M5: 12,606,164 km (0.092 R)
• M6: 13,688,504 km (0.086 R)
• M7: 21,789,827 km (0.047 R)
• M8: 23,128,429 km (0.076 R)
• M9: 25,890,754 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 296.8

Radius: 7.6

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 9.11 AU - 9.59 AU

Year: 19391 Days

Day: 18 Hours

Environment

Temp: -233 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 75,907,799 km

• M1: 94,546 km (0.044 R)
• M2: 356,791 km (0.033 R)
• M3: 601,234 km (0.078 R)
• M4: 1,190,500 km (0.096 R)
• M5: 2,946,629 km (0.09 R)
• M6: 3,538,438 km (0.109 R)
• M7: 3,779,889 km (0.107 R)
• M8: 5,089,918 km (0.11 R)
• M9: 5,940,531 km (0.098 R)
• M10: 6,841,559 km (0.093 R)
• M11: 8,103,567 km (0.054 R)
• M12: 9,109,613 km (0.103 R)
• M13: 10,036,072 km (0.064 R)
• M14: 10,743,371 km (0.065 R)
• M15: 11,600,268 km (0.078 R)
• M16: 15,133,769 km (0.063 R)
• M17: 15,629,537 km (0.039 R)
• M18: 18,034,921 km (0.085 R)
• M19: 18,272,333 km (0.104 R)
• M20: 21,286,879 km (0.095 R)
• M21: 26,001,756 km (0.097 R)
• M22: 27,021,564 km (0.072 R)
• M23: 28,173,917 km (0.114 R)
• M24: 34,796,764 km (0.105 R)
• M25: 39,257,024 km (0.08 R)
• M26: 44,515,090 km (0.115 R)
• M27: 55,897,095 km (0.034 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 624.5

Radius: 3.2

Gravity: 60.99 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 9.73 AU - 9.91 AU

Year: 20872 Days

Day: 20.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 75,907,799 km

• M1: 44,580 km (0.069 R)
• M2: 344,823 km (0.074 R)
• M3: 489,634 km (0.098 R)
• M4: 683,961 km (0.118 R)
• M5: 836,701 km (0.105 R)
• M6: 1,155,494 km (0.115 R)
• M7: 1,516,623 km (0.115 R)
• M8: 1,814,622 km (0.112 R)
• M9: 2,366,190 km (0.097 R)
• M10: 3,264,824 km (0.066 R)
• M11: 3,851,696 km (0.097 R)
• M12: 4,235,714 km (0.106 R)
• M13: 4,751,079 km (0.11 R)
• M14: 5,423,222 km (0.096 R)
• M15: 6,114,065 km (0.064 R)
• M16: 6,725,322 km (0.073 R)
• M17: 6,861,456 km (0.118 R)
• M18: 11,207,424 km (0.085 R)
• M19: 11,722,788 km (0.044 R)
• M20: 13,009,779 km (0.074 R)
• M21: 13,434,936 km (0.101 R)
• M22: 21,555,408 km (0.102 R)
• M23: 32,691,024 km (0.073 R)
• M24: 40,209,963 km (0.099 R)
• M25: 40,359,112 km (0.061 R)
• M26: 41,718,059 km (0.098 R)
• M27: 42,640,928 km (0.101 R)
• M28: 54,796,354 km (0.054 R)
• M29: 57,400,404 km (0.11 R)
• M30: 64,065,438 km (0.113 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: 536 - 18,212 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit