🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

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: 0.67

Radius: 0.85

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.47 AU - 0.75 AU

Year: 313 Days

Day: 14.8 Hours

Environment

Temp: -122 °C

Axial Tilt: 17.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 68,326,559 km

• M1: 49,367 km (0.077 R)
• M2: 163,959 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.4

Radius: 11.7

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.73 AU - 0.77 AU

Year: 426 Days

Day: 9.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,326,559 km

• M1: 145,559 km (0.101 R)
• M2: 510,578 km (0.079 R)
• M3: 942,915 km (0.091 R)
• M4: 1,313,918 km (0.115 R)
• M5: 1,704,668 km (0.115 R)
• M6: 2,436,052 km (0.054 R)
• M7: 2,986,721 km (0.095 R)
• M8: 3,453,018 km (0.115 R)
• M9: 3,825,517 km (0.032 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 773.9

Radius: 12.2

Gravity: 5.2 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.74 AU - 0.82 AU

Year: 452 Days

Day: 9.2 Hours

Environment

Temp: -154 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 68,326,559 km

• M1: 151,692 km (0.058 R)
• M2: 571,613 km (0.091 R)
• M3: 957,426 km (0.104 R)
• M4: 1,408,464 km (0.104 R)
• M5: 1,841,699 km (0.115 R)
• M6: 2,318,019 km (0.053 R)
• M7: 2,697,698 km (0.107 R)
• M8: 3,789,763 km (0.105 R)
• M9: 5,452,094 km (0.058 R)
• M10: 6,113,915 km (0.028 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 224.9

Radius: 13.1

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.12 AU - 1.14 AU

Year: 788 Days

Day: 9.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,326,559 km

• M1: 163,810 km (0.114 R)
• M2: 643,121 km (0.079 R)
• M3: 1,359,246 km (0.108 R)
• M4: 1,878,949 km (0.072 R)
• M5: 2,980,738 km (0.118 R)
• M6: 3,436,113 km (0.042 R)
• M7: 4,290,766 km (0.116 R)
• M8: 4,768,881 km (0.035 R)
• M9: 5,544,695 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.4

Radius: 8.9

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.81 AU - 2.31 AU

Year: 1940 Days

Day: 10.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 68,326,559 km

• M1: 115,190 km (0.112 R)
• M2: 644,916 km (0.088 R)
• M3: 927,507 km (0.1 R)
• M4: 1,348,625 km (0.065 R)
• M5: 1,674,150 km (0.044 R)
• M6: 2,227,512 km (0.096 R)
• M7: 2,533,290 km (0.085 R)
• M8: 2,887,837 km (0.088 R)
• M9: 3,377,471 km (0.113 R)
• M10: 3,685,044 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975

Radius: 10

Gravity: 9.75 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 2.01 AU - 3.09 AU

Year: 2671 Days

Day: 12.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 68,326,559 km

• M1: 124,316 km (0.091 R)
• M2: 484,548 km (0.091 R)
• M3: 839,543 km (0.073 R)
• M4: 1,335,161 km (0.118 R)
• M5: 1,807,591 km (0.103 R)
• M6: 2,123,991 km (0.116 R)
• M7: 2,492,749 km (0.084 R)
• M8: 2,821,715 km (0.082 R)
• M9: 3,269,461 km (0.114 R)
• M10: 3,885,356 km (0.052 R)
• M11: 4,264,736 km (0.109 R)
• M12: 4,976,373 km (0.12 R)
• M13: 6,460,234 km (0.101 R)
• M14: 7,462,091 km (0.102 R)
• M15: 8,954,929 km (0.093 R)
• M16: 9,695,588 km (0.109 R)
• M17: 10,516,730 km (0.115 R)
• M18: 11,682,696 km (0.089 R)
• M19: 16,068,457 km (0.031 R)
• M20: 16,554,201 km (0.06 R)
• M21: 17,498,762 km (0.108 R)
• M22: 18,655,303 km (0.07 R)
• M23: 19,312,786 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 539.3

Radius: 11.7

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 2.95 AU - 3.27 AU

Year: 3598 Days

Day: 9.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 68,326,559 km

• M1: 145,559 km (0.09 R)
• M2: 514,317 km (0.119 R)
• M3: 1,058,854 km (0.119 R)
• M4: 1,444,816 km (0.098 R)
• M5: 2,053,231 km (0.119 R)
• M6: 2,778,631 km (0.112 R)
• M7: 3,746,379 km (0.106 R)
• M8: 4,200,259 km (0.078 R)
• M9: 4,783,990 km (0.045 R)
• M10: 5,194,487 km (0.109 R)
• M11: 6,059,013 km (0.119 R)
• M12: 6,598,912 km (0.098 R)
• M13: 7,873,785 km (0.072 R)
• M14: 8,276,353 km (0.111 R)
• M15: 9,567,382 km (0.031 R)
• M16: 12,545,277 km (0.05 R)
• M17: 15,047,302 km (0.099 R)
• M18: 15,616,372 km (0.052 R)
• M19: 16,092,692 km (0.106 R)
• M20: 16,687,942 km (0.093 R)
• M21: 19,764,272 km (0.085 R)
• M22: 20,259,292 km (0.12 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.9

Radius: 12.7

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 4.23 AU - 5.01 AU

Year: 6514 Days

Day: 12.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 68,326,559 km

• M1: 157,975 km (0.099 R)
• M2: 594,951 km (0.112 R)
• M3: 1,160,431 km (0.095 R)
• M4: 1,601,146 km (0.086 R)
• M5: 2,092,725 km (0.052 R)
• M6: 2,854,477 km (0.101 R)
• M7: 3,408,587 km (0.113 R)
• M8: 4,034,056 km (0.032 R)
• M9: 4,985,947 km (0.114 R)
• M10: 5,576,410 km (0.119 R)
• M11: 6,549,694 km (0.093 R)
• M12: 7,149,581 km (0.098 R)
• M13: 9,043,640 km (0.115 R)
• M14: 9,565,437 km (0.045 R)
• M15: 12,323,573 km (0.083 R)
• M16: 13,074,704 km (0.12 R)
• M17: 14,374,859 km (0.068 R)
• M18: 15,821,770 km (0.083 R)
• M19: 18,034,622 km (0.034 R)
• M20: 20,225,632 km (0.09 R)
• M21: 20,968,834 km (0.038 R)
• M22: 21,730,138 km (0.109 R)
• M23: 24,708,033 km (0.097 R)
• M24: 25,215,469 km (0.086 R)
• M25: 27,494,742 km (0.096 R)
• M26: 28,222,835 km (0.045 R)
• M27: 28,870,444 km (0.104 R)
• M28: 30,581,395 km (0.113 R)
• M29: 32,966,434 km (0.094 R)
• M30: 36,119,059 km (0.084 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 652

Radius: 3.1

Gravity: 67.85 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 5.7 AU - 6.42 AU

Year: 9786 Days

Day: 22.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 68,326,559 km

• M1: 38,596 km (0.116 R)
• M2: 145,409 km (0.043 R)
• M3: 247,136 km (0.087 R)
• M4: 382,821 km (0.074 R)
• M5: 519,703 km (0.117 R)
• M6: 1,014,872 km (0.03 R)
• M7: 1,171,052 km (0.091 R)
• M8: 1,574,518 km (0.111 R)
• M9: 1,707,360 km (0.073 R)
• M10: 3,628,646 km (0.079 R)
• M11: 5,206,305 km (0.081 R)
• M12: 5,336,306 km (0.079 R)
• M13: 6,090,429 km (0.103 R)
• M14: 8,020,241 km (0.089 R)
• M15: 8,912,892 km (0.082 R)
• M16: 17,299,199 km (0.117 R)
• M17: 20,828,661 km (0.108 R)
• M18: 24,626,203 km (0.107 R)
• M19: 25,642,870 km (0.102 R)
• M20: 25,830,616 km (0.096 R)
• M21: 35,496,134 km (0.025 R)
• M22: 36,911,180 km (0.084 R)
• M23: 37,030,709 km (0.092 R)
• M24: 37,996,812 km (0.11 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 617.9

Radius: 6.4

Gravity: 15.09 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 8.37 AU - 9.77 AU

Year: 17919 Days

Day: 19.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 68,326,559 km

• M1: 79,586 km (0.1 R)
• M2: 328,816 km (0.092 R)
• M3: 748,438 km (0.088 R)
• M4: 953,986 km (0.079 R)
• M5: 1,292,974 km (0.118 R)
• M6: 1,545,944 km (0.094 R)
• M7: 2,253,542 km (0.062 R)
• M8: 3,883,860 km (0.104 R)
• M9: 5,467,952 km (0.05 R)
• M10: 6,298,669 km (0.114 R)
• M11: 7,301,722 km (0.12 R)
• M12: 9,132,651 km (0.057 R)
• M13: 9,510,535 km (0.102 R)
• M14: 12,785,083 km (0.037 R)
• M15: 15,877,121 km (0.104 R)
• M16: 16,502,740 km (0.058 R)
• M17: 18,995,489 km (0.048 R)
• M18: 21,444,107 km (0.066 R)
• M19: 22,208,103 km (0.116 R)
• M20: 22,596,908 km (0.087 R)
• M21: 26,302,896 km (0.095 R)
• M22: 28,641,560 km (0.108 R)
• M23: 29,218,110 km (0.09 R)
• M24: 32,466,328 km (0.07 R)
• M25: 35,814,179 km (0.085 R)
• M26: 36,214,653 km (0.092 R)
• M27: 37,434,174 km (0.064 R)
• M28: 38,680,773 km (0.062 R)
• M29: 41,844,020 km (0.116 R)
• M30: 46,271,669 km (0.104 R)
• M31: 53,396,118 km (0.041 R)
• M32: 60,271,636 km (0.12 R)
• M33: 63,724,953 km (0.106 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 282 - 16,754 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit