🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.2

Radius: 11.3

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.53 AU - 0.69 AU

Year: 329 Days

Day: 9.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,118,831 km

• M1: 140,472 km (0.101 R)
• M2: 493,523 km (0.104 R)
• M3: 862,432 km (0.093 R)
• M4: 1,262,307 km (0.065 R)
• M5: 1,648,269 km (0.102 R)
• M6: 2,048,593 km (0.119 R)
• M7: 2,781,623 km (0.074 R)
• M8: 3,136,170 km (0.075 R)
• M9: 3,521,235 km (0.074 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.6

Radius: 13.2

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.77 AU - 0.99 AU

Year: 570 Days

Day: 7.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,118,831 km

• M1: 164,109 km (0.06 R)
• M2: 694,284 km (0.108 R)
• M3: 1,257,669 km (0.054 R)
• M4: 1,810,284 km (0.04 R)
• M5: 2,282,864 km (0.064 R)
• M6: 2,693,809 km (0.087 R)
• M7: 3,315,986 km (0.114 R)
• M8: 3,889,694 km (0.065 R)
• M9: 4,529,225 km (0.106 R)
• M10: 5,272,727 km (0.107 R)
• M11: 6,712,157 km (0.117 R)
• M12: 7,413,173 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.7

Radius: 9.9

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.92 AU - 1.02 AU

Year: 659 Days

Day: 8.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 57.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 57,118,831 km

• M1: 137,181 km (0.085 R)
• M2: 449,990 km (0.074 R)
• M3: 779,704 km (0.098 R)
• M4: 1,573,171 km (0.08 R)
• M5: 3,467,230 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.1

Radius: 13.6

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.93 AU - 1.13 AU

Year: 722 Days

Day: 12.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,118,831 km

• M1: 169,195 km (0.082 R)
• M2: 618,288 km (0.033 R)
• M3: 1,133,353 km (0.085 R)
• M4: 1,584,690 km (0.047 R)
• M5: 2,218,387 km (0.093 R)
• M6: 2,670,023 km (0.068 R)
• M7: 3,910,788 km (0.109 R)
• M8: 5,796,319 km (0.097 R)
• M9: 6,643,342 km (0.087 R)
• M10: 7,666,143 km (0.119 R)
• M11: 8,228,182 km (0.049 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 898.3

Radius: 13.7

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.89 AU - 1.37 AU

Year: 829 Days

Day: 6.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,118,831 km

• M1: 170,392 km (0.107 R)
• M2: 671,096 km (0.078 R)
• M3: 1,188,405 km (0.077 R)
• M4: 1,855,762 km (0.064 R)
• M5: 2,888,286 km (0.108 R)
• M6: 3,349,796 km (0.1 R)
• M7: 3,984,988 km (0.111 R)
• M8: 5,381,634 km (0.025 R)
• M9: 6,429,118 km (0.08 R)
• M10: 8,263,038 km (0.051 R)
• M11: 8,711,084 km (0.078 R)
• M12: 9,231,086 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 834.7

Radius: 8.4

Gravity: 11.83 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.53 AU - 1.83 AU

Year: 1503 Days

Day: 10.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,118,831 km

• M1: 104,569 km (0.106 R)
• M2: 374,892 km (0.073 R)
• M3: 752,776 km (0.092 R)
• M4: 1,176,587 km (0.1 R)
• M5: 2,267,904 km (0.04 R)
• M6: 2,534,338 km (0.05 R)
• M7: 2,836,076 km (0.109 R)
• M8: 3,731,569 km (0.099 R)
• M9: 4,845,325 km (0.063 R)
• M10: 5,445,213 km (0.11 R)
• M11: 5,950,704 km (0.116 R)
• M12: 6,792,940 km (0.092 R)
• M13: 7,055,185 km (0.105 R)
• M14: 7,600,021 km (0.079 R)
• M15: 8,897,483 km (0.077 R)
• M16: 10,030,537 km (0.058 R)
• M17: 11,699,301 km (0.115 R)
• M18: 12,346,163 km (0.076 R)
• M19: 12,698,166 km (0.057 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 263

Radius: 8.8

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 2.21 AU - 2.25 AU

Year: 2299 Days

Day: 9.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 57,118,831 km

• M1: 109,506 km (0.118 R)
• M2: 432,188 km (0.082 R)
• M3: 826,379 km (0.075 R)
• M4: 1,198,728 km (0.054 R)
• M5: 1,552,078 km (0.09 R)
• M6: 2,072,379 km (0.1 R)
• M7: 2,758,286 km (0.114 R)
• M8: 3,066,308 km (0.107 R)
• M9: 3,350,843 km (0.099 R)
• M10: 4,312,757 km (0.08 R)
• M11: 4,867,765 km (0.105 R)
• M12: 5,152,450 km (0.108 R)
• M13: 5,512,981 km (0.082 R)
• M14: 5,913,155 km (0.106 R)
• M15: 6,428,370 km (0.091 R)
• M16: 7,388,489 km (0.084 R)
• M17: 8,326,169 km (0.067 R)
• M18: 9,781,906 km (0.098 R)
• M19: 10,402,587 km (0.065 R)
• M20: 11,014,592 km (0.072 R)
• M21: 12,917,776 km (0.112 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 622

Radius: 13.2

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 2.87 AU - 3.85 AU

Year: 4251 Days

Day: 10.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,118,831 km

• M1: 164,109 km (0.114 R)
• M2: 941,120 km (0.097 R)
• M3: 2,370,528 km (0.096 R)
• M4: 2,889,034 km (0.081 R)
• M5: 3,937,865 km (0.09 R)
• M6: 5,520,161 km (0.118 R)
• M7: 6,470,108 km (0.091 R)
• M8: 7,000,582 km (0.069 R)
• M9: 8,364,167 km (0.088 R)
• M10: 8,843,478 km (0.087 R)
• M11: 9,498,118 km (0.043 R)
• M12: 9,938,684 km (0.108 R)
• M13: 10,603,946 km (0.075 R)
• M14: 11,477,149 km (0.033 R)
• M15: 12,163,055 km (0.118 R)
• M16: 13,317,202 km (0.099 R)
• M17: 15,676,510 km (0.027 R)
• M18: 16,809,714 km (0.106 R)
• M19: 20,871,297 km (0.101 R)
• M20: 22,523,455 km (0.045 R)
• M21: 23,965,579 km (0.117 R)
• M22: 25,315,400 km (0.097 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 689.2

Radius: 5.8

Gravity: 20.49 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 8.27 AU - 8.53 AU

Year: 16805 Days

Day: 16.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 57,118,831 km

• M1: 72,106 km (0.03 R)
• M2: 334,650 km (0.037 R)
• M3: 765,044 km (0.117 R)
• M4: 1,106,575 km (0.092 R)
• M5: 1,467,256 km (0.096 R)
• M6: 2,336,270 km (0.095 R)
• M7: 2,644,591 km (0.07 R)
• M8: 3,619,969 km (0.085 R)
• M9: 4,220,006 km (0.06 R)
• M10: 4,919,227 km (0.025 R)
• M11: 5,731,693 km (0.094 R)
• M12: 6,334,722 km (0.104 R)
• M13: 9,389,510 km (0.062 R)
• M14: 12,631,446 km (0.072 R)
• M15: 12,830,860 km (0.087 R)
• M16: 13,372,703 km (0.062 R)
• M17: 16,234,959 km (0.072 R)
• M18: 19,658,207 km (0.073 R)
• M19: 20,287,117 km (0.09 R)
• M20: 26,454,439 km (0.045 R)
• M21: 28,454,413 km (0.103 R)
• M22: 33,255,607 km (0.115 R)
• M23: 38,014,614 km (0.097 R)
• M24: 40,124,542 km (0.049 R)
• M25: 43,057,708 km (0.091 R)
• M26: 48,042,907 km (0.064 R)
• M27: 51,177,581 km (0.113 R)
• M28: 52,709,015 km (0.106 R)
• M29: 53,399,259 km (0.09 R)
• M30: 56,941,587 km (0.041 R)
• M31: 59,326,028 km (0.102 R)
• M32: 65,279,275 km (0.091 R)
• M33: 65,676,457 km (0.12 R)
• M34: 67,483,749 km (0.118 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 276.7

Radius: 6.3

Gravity: 6.97 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 7.94 AU - 11.22 AU

Year: 20467 Days

Day: 23.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 75.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 57,118,831 km

• M1: 82,578 km (0.084 R)
• M2: 344,075 km (0.034 R)
• M3: 653,144 km (0.033 R)
• M4: 896,839 km (0.064 R)
• M5: 1,572,722 km (0.093 R)
• M6: 1,947,465 km (0.116 R)
• M7: 2,784,166 km (0.036 R)
• M8: 3,062,268 km (0.043 R)
• M9: 3,333,489 km (0.09 R)
• M10: 4,805,981 km (0.043 R)
• M11: 5,558,309 km (0.084 R)
• M12: 5,962,672 km (0.12 R)
• M13: 10,149,318 km (0.08 R)
• M14: 10,865,742 km (0.068 R)
• M15: 11,674,468 km (0.092 R)
• M16: 16,477,308 km (0.112 R)
• M17: 16,928,645 km (0.117 R)
• M18: 20,150,684 km (0.044 R)
• M19: 21,546,432 km (0.061 R)
• M20: 24,432,175 km (0.07 R)
• M21: 25,916,784 km (0.096 R)
• M22: 26,119,190 km (0.1 R)
• M23: 27,460,484 km (0.064 R)
• M24: 29,392,690 km (0.058 R)
• M25: 29,723,302 km (0.092 R)
• M26: 31,070,580 km (0.056 R)
• M27: 31,991,205 km (0.115 R)
• M28: 32,224,129 km (0.111 R)
• M29: 35,108,376 km (0.1 R)
• M30: 37,510,320 km (0.087 R)
• M31: 38,685,411 km (0.093 R)
• M32: 39,215,436 km (0.095 R)
• M33: 55,424,665 km (0.083 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: 509 - 10,644 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit