🌌 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 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.21

Radius: 1.08

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.53 AU - 0.69 AU

Year: 313 Days

Day: 17.7 Hours

Environment

Temp: -130 °C

Axial Tilt: 12.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 417.5

Radius: 14

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.97 AU - 0.97 AU

Year: 627 Days

Day: 7.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 62,709,524 km

• M1: 174,132 km (0.094 R)
• M2: 738,714 km (0.067 R)
• M3: 1,269,637 km (0.074 R)
• M4: 1,824,795 km (0.08 R)
• M5: 2,826,801 km (0.116 R)
• M6: 3,513,904 km (0.081 R)
• M7: 4,338,787 km (0.053 R)
• M8: 4,874,946 km (0.095 R)
• M9: 5,658,689 km (0.116 R)
• M10: 6,208,461 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 286.6

Radius: 8.6

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.85 AU - 1.15 AU

Year: 656 Days

Day: 5.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 62,709,524 km

• M1: 107,112 km (0.088 R)
• M2: 376,239 km (0.076 R)
• M3: 853,007 km (0.09 R)
• M4: 1,167,013 km (0.105 R)
• M5: 1,551,928 km (0.118 R)
• M6: 1,963,023 km (0.104 R)
• M7: 2,907,883 km (0.088 R)
• M8: 3,194,363 km (0.112 R)
• M9: 3,499,842 km (0.117 R)
• M10: 3,837,634 km (0.074 R)
• M11: 4,115,288 km (0.106 R)
• M12: 4,463,552 km (0.077 R)
• M13: 4,937,777 km (0.072 R)
• M14: 5,695,041 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832.5

Radius: 8.2

Gravity: 12.38 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.44 AU - 1.48 AU

Year: 1157 Days

Day: 10.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 62,709,524 km

• M1: 102,325 km (0.113 R)
• M2: 474,973 km (0.096 R)
• M3: 850,015 km (0.081 R)
• M4: 1,545,346 km (0.098 R)
• M5: 1,988,156 km (0.1 R)
• M6: 2,251,598 km (0.099 R)
• M7: 2,525,960 km (0.069 R)
• M8: 3,289,358 km (0.082 R)
• M9: 3,580,775 km (0.068 R)
• M10: 4,215,967 km (0.118 R)
• M11: 5,644,178 km (0.076 R)
• M12: 7,898,020 km (0.063 R)
• M13: 8,338,735 km (0.116 R)
• M14: 8,824,778 km (0.115 R)
• M15: 9,542,998 km (0.076 R)
• M16: 10,659,596 km (0.116 R)
• M17: 11,095,674 km (0.116 R)
• M18: 11,860,867 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.4

Radius: 12.3

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.83 AU - 1.91 AU

Year: 1678 Days

Day: 13.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 62,709,524 km

• M1: 153,039 km (0.097 R)
• M2: 641,476 km (0.103 R)
• M3: 1,035,816 km (0.107 R)
• M4: 1,618,799 km (0.108 R)
• M5: 2,530,598 km (0.087 R)
• M6: 3,263,926 km (0.104 R)
• M7: 4,265,334 km (0.076 R)
• M8: 4,735,670 km (0.114 R)
• M9: 5,132,404 km (0.077 R)
• M10: 5,711,497 km (0.096 R)
• M11: 6,113,467 km (0.103 R)
• M12: 7,242,781 km (0.047 R)
• M13: 8,658,874 km (0.062 R)
• M14: 9,514,275 km (0.1 R)
• M15: 11,209,368 km (0.09 R)
• M16: 12,616,785 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 930.9

Radius: 13.7

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 2.28 AU - 3.16 AU

Year: 2943 Days

Day: 5.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 62,709,524 km

• M1: 170,392 km (0.113 R)
• M2: 619,186 km (0.096 R)
• M3: 1,054,964 km (0.106 R)
• M4: 1,618,499 km (0.112 R)
• M5: 2,309,492 km (0.099 R)
• M6: 2,913,867 km (0.115 R)
• M7: 4,265,634 km (0.06 R)
• M8: 4,815,107 km (0.065 R)
• M9: 5,359,942 km (0.081 R)
• M10: 6,283,410 km (0.051 R)
• M11: 6,874,621 km (0.091 R)
• M12: 8,730,083 km (0.094 R)
• M13: 9,890,663 km (0.1 R)
• M14: 11,279,231 km (0.064 R)
• M15: 11,976,058 km (0.091 R)
• M16: 12,934,082 km (0.071 R)
• M17: 14,290,187 km (0.047 R)
• M18: 15,368,040 km (0.101 R)
• M19: 16,007,870 km (0.093 R)
• M20: 16,721,003 km (0.093 R)
• M21: 17,512,525 km (0.109 R)
• M22: 19,170,668 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161.4

Radius: 9.5

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 2.33 AU - 3.53 AU

Year: 3290 Days

Day: 12.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 62,709,524 km

• M1: 118,182 km (0.079 R)
• M2: 692,638 km (0.093 R)
• M3: 1,898,696 km (0.111 R)
• M4: 2,358,261 km (0.117 R)
• M5: 3,566,862 km (0.082 R)
• M6: 7,016,439 km (0.089 R)
• M7: 7,581,321 km (0.111 R)
• M8: 8,031,760 km (0.094 R)
• M9: 9,110,959 km (0.096 R)
• M10: 10,216,188 km (0.082 R)
• M11: 10,626,834 km (0.071 R)
• M12: 12,151,835 km (0.059 R)
• M13: 12,730,330 km (0.048 R)
• M14: 13,942,222 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 408

Radius: 14.5

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 2.85 AU - 3.33 AU

Year: 3563 Days

Day: 13.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 62,709,524 km

• M1: 180,265 km (0.08 R)
• M2: 820,245 km (0.097 R)
• M3: 1,437,336 km (0.119 R)
• M4: 2,035,578 km (0.093 R)
• M5: 2,691,565 km (0.115 R)
• M6: 3,361,315 km (0.054 R)
• M7: 4,673,288 km (0.077 R)
• M8: 5,179,826 km (0.1 R)
• M9: 6,008,748 km (0.116 R)
• M10: 6,953,608 km (0.074 R)
• M11: 9,531,778 km (0.101 R)
• M12: 16,080,425 km (0.096 R)
• M13: 19,555,434 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 892

Radius: 6.5

Gravity: 21.11 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 6.63 AU - 6.93 AU

Year: 11581 Days

Day: 20.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 62,709,524 km

• M1: 80,783 km (0.04 R)
• M2: 287,228 km (0.111 R)
• M3: 521,498 km (0.117 R)
• M4: 1,178,083 km (0.064 R)
• M5: 1,401,283 km (0.086 R)
• M6: 1,781,561 km (0.102 R)
• M7: 2,267,455 km (0.052 R)
• M8: 3,553,099 km (0.098 R)
• M9: 4,141,617 km (0.099 R)
• M10: 4,537,154 km (0.071 R)
• M11: 6,180,935 km (0.053 R)
• M12: 6,738,786 km (0.101 R)
• M13: 7,286,314 km (0.055 R)
• M14: 8,809,220 km (0.1 R)
• M15: 9,723,712 km (0.081 R)
• M16: 10,204,071 km (0.084 R)
• M17: 11,327,850 km (0.028 R)
• M18: 11,799,682 km (0.088 R)
• M19: 13,100,585 km (0.111 R)
• M20: 13,885,525 km (0.054 R)
• M21: 19,515,641 km (0.115 R)
• M22: 19,768,012 km (0.078 R)
• M23: 20,022,628 km (0.084 R)
• M24: 22,047,585 km (0.107 R)
• M25: 23,820,319 km (0.097 R)
• M26: 24,108,594 km (0.103 R)
• M27: 29,483,945 km (0.116 R)
• M28: 31,980,135 km (0.087 R)
• M29: 36,617,669 km (0.108 R)
• M30: 39,363,389 km (0.095 R)
• M31: 46,446,997 km (0.076 R)
• M32: 55,001,752 km (0.103 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 564.3

Radius: 5.3

Gravity: 20.09 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 6.94 AU - 10.22 AU

Year: 16487 Days

Day: 24.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 62,709,524 km

• M1: 66,721 km (0.049 R)
• M2: 234,121 km (0.117 R)
• M3: 544,835 km (0.058 R)
• M4: 1,192,594 km (0.072 R)
• M5: 1,455,886 km (0.094 R)
• M6: 1,950,307 km (0.069 R)
• M7: 2,463,428 km (0.072 R)
• M8: 2,821,416 km (0.113 R)
• M9: 3,369,393 km (0.119 R)
• M10: 3,612,938 km (0.091 R)
• M11: 4,840,987 km (0.108 R)
• M12: 5,512,083 km (0.104 R)
• M13: 6,907,532 km (0.096 R)
• M14: 7,212,562 km (0.108 R)
• M15: 7,943,497 km (0.112 R)
• M16: 8,925,009 km (0.086 R)
• M17: 9,712,492 km (0.054 R)
• M18: 10,206,614 km (0.113 R)
• M19: 12,225,288 km (0.1 R)
• M20: 14,566,345 km (0.107 R)
• M21: 14,995,691 km (0.077 R)
• M22: 16,953,777 km (0.088 R)
• M23: 19,075,972 km (0.111 R)
• M24: 19,417,504 km (0.089 R)
• M25: 34,227,843 km (0.068 R)
• M26: 44,376,712 km (0.091 R)
• M27: 49,164,592 km (0.077 R)
• M28: 49,484,732 km (0.091 R)
• M29: 50,453,677 km (0.069 R)
• M30: 52,096,710 km (0.083 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 162 - 11,586 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit