🌌 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: 1.23

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.59 AU - 0.63 AU

Year: 303 Days

Day: 43 Hours

Environment

Temp: -126 °C

Axial Tilt: 46.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.1

Radius: 10.2

Gravity: 8.31 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.73 AU - 0.81 AU

Year: 430 Days

Day: 12.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 154.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,487,778 km

• M1: 126,859 km (0.094 R)
• M2: 534,364 km (0.113 R)
• M3: 859,290 km (0.069 R)
• M4: 1,617,901 km (0.072 R)
• M5: 2,327,144 km (0.057 R)
• M6: 2,732,555 km (0.099 R)
• M7: 3,208,126 km (0.086 R)
• M8: 4,114,689 km (0.101 R)
• M9: 4,680,768 km (0.058 R)
• M10: 5,199,723 km (0.054 R)
• M11: 5,968,805 km (0.028 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590.2

Radius: 14.9

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.7 AU - 1.1 AU

Year: 543 Days

Day: 12.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,487,778 km

• M1: 185,352 km (0.116 R)
• M2: 849,267 km (0.076 R)
• M3: 1,374,505 km (0.087 R)
• M4: 2,053,829 km (0.081 R)
• M5: 2,909,080 km (0.09 R)
• M6: 3,549,658 km (0.043 R)
• M7: 4,142,814 km (0.033 R)
• M8: 4,957,823 km (0.06 R)
• M9: 5,530,484 km (0.059 R)
• M10: 6,220,728 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 408.7

Radius: 8.7

Gravity: 5.4 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.9 AU - 2.8 AU

Year: 2291 Days

Day: 9.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 27,487,778 km

• M1: 109,057 km (0.055 R)
• M2: 568,173 km (0.105 R)
• M3: 984,204 km (0.036 R)
• M4: 2,303,358 km (0.114 R)
• M5: 3,251,659 km (0.092 R)
• M6: 3,579,877 km (0.115 R)
• M7: 4,189,189 km (0.093 R)
• M8: 4,619,133 km (0.101 R)
• M9: 5,296,812 km (0.103 R)
• M10: 6,185,872 km (0.094 R)
• M11: 9,882,735 km (0.036 R)
• M12: 11,151,624 km (0.107 R)
• M13: 13,212,484 km (0.077 R)
• M14: 13,586,030 km (0.049 R)
• M15: 14,529,095 km (0.113 R)
• M16: 15,106,393 km (0.051 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 666.7

Radius: 8.7

Gravity: 8.81 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 2.5 AU - 3.64 AU

Year: 3420 Days

Day: 5.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 27,487,778 km

• M1: 108,458 km (0.081 R)
• M2: 583,880 km (0.102 R)
• M3: 901,926 km (0.088 R)
• M4: 1,644,230 km (0.091 R)
• M5: 2,132,069 km (0.12 R)
• M6: 2,539,723 km (0.066 R)
• M7: 2,862,106 km (0.063 R)
• M8: 3,303,570 km (0.11 R)
• M9: 3,629,244 km (0.074 R)
• M10: 5,127,766 km (0.101 R)
• M11: 5,780,611 km (0.092 R)
• M12: 6,255,435 km (0.089 R)
• M13: 6,908,280 km (0.051 R)
• M14: 8,595,744 km (0.059 R)
• M15: 9,103,479 km (0.053 R)
• M16: 9,746,600 km (0.091 R)
• M17: 10,582,553 km (0.106 R)
• M18: 10,913,314 km (0.067 R)
• M19: 11,379,461 km (0.11 R)
• M20: 12,080,926 km (0.079 R)
• M21: 13,618,493 km (0.113 R)
• M22: 13,960,772 km (0.096 R)
• M23: 14,459,532 km (0.079 R)
• M24: 17,247,438 km (0.093 R)
• M25: 17,590,615 km (0.119 R)
• M26: 19,746,171 km (0.055 R)
• M27: 20,121,811 km (0.118 R)
• M28: 20,566,117 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.9

Radius: 11

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 3.46 AU - 3.72 AU

Year: 4325 Days

Day: 6.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 111 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 27,487,778 km

• M1: 137,480 km (0.06 R)
• M2: 1,038,209 km (0.108 R)
• M3: 2,415,706 km (0.061 R)
• M4: 3,088,897 km (0.057 R)
• M5: 4,074,747 km (0.096 R)
• M6: 4,500,203 km (0.087 R)
• M7: 7,643,554 km (0.079 R)
• M8: 8,979,911 km (0.096 R)
• M9: 11,529,508 km (0.071 R)
• M10: 12,757,258 km (0.119 R)
• M11: 15,257,936 km (0.05 R)
• M12: 15,632,379 km (0.07 R)
• M13: 18,247,799 km (0.106 R)
• M14: 19,098,562 km (0.09 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 428.7

Radius: 9.2

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.9 AU - 4.8 AU

Year: 4803 Days

Day: 9.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 27,487,778 km

• M1: 122,221 km (0.025 R)
• M2: 559,496 km (0.117 R)
• M3: 1,282,353 km (0.106 R)
• M4: 2,118,455 km (0.073 R)
• M5: 2,441,288 km (0.103 R)
• M6: 2,865,398 km (0.117 R)
• M7: 3,281,130 km (0.063 R)
• M8: 3,613,836 km (0.115 R)
• M9: 4,122,020 km (0.047 R)
• M10: 4,581,435 km (0.1 R)
• M11: 5,602,739 km (0.057 R)
• M12: 7,676,764 km (0.114 R)
• M13: 8,960,464 km (0.088 R)
• M14: 12,882,621 km (0.062 R)
• M15: 13,765,098 km (0.045 R)
• M16: 15,110,283 km (0.086 R)
• M17: 15,432,816 km (0.103 R)
• M18: 15,980,493 km (0.087 R)
• M19: 16,484,489 km (0.069 R)
• M20: 17,761,007 km (0.082 R)
• M21: 19,861,660 km (0.029 R)
• M22: 21,575,902 km (0.109 R)
• M23: 22,889,521 km (0.076 R)
• M24: 24,476,306 km (0.093 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 614.4

Radius: 11.2

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 4.45 AU - 5.47 AU

Year: 7024 Days

Day: 14.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 27,487,778 km

• M1: 139,724 km (0.097 R)
• M2: 714,629 km (0.087 R)
• M3: 1,082,939 km (0.101 R)
• M4: 1,544,299 km (0.085 R)
• M5: 2,135,809 km (0.091 R)
• M6: 2,739,885 km (0.107 R)
• M7: 3,093,235 km (0.057 R)
• M8: 3,797,692 km (0.101 R)
• M9: 4,446,348 km (0.08 R)
• M10: 5,837,010 km (0.094 R)
• M11: 6,259,175 km (0.09 R)
• M12: 6,632,422 km (0.082 R)
• M13: 10,839,563 km (0.081 R)
• M14: 11,379,461 km (0.109 R)
• M15: 12,726,889 km (0.108 R)
• M16: 13,776,917 km (0.033 R)
• M17: 14,823,952 km (0.105 R)
• M18: 20,127,945 km (0.099 R)
• M19: 20,570,455 km (0.073 R)
• M20: 22,170,704 km (0.105 R)
• M21: 22,642,835 km (0.096 R)
• M22: 23,770,503 km (0.115 R)
• M23: 25,617,588 km (0.03 R)
• M24: 26,930,609 km (0.065 R)
• M25: 29,124,162 km (0.111 R)
• M26: 29,880,978 km (0.097 R)
• M27: 33,142,660 km (0.102 R)
• M28: 33,553,456 km (0.087 R)
• M29: 35,766,308 km (0.113 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 365.9

Radius: 13.6

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 4.74 AU - 5.24 AU

Year: 7087 Days

Day: 14.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 27,487,778 km

• M1: 169,195 km (0.088 R)
• M2: 679,025 km (0.088 R)
• M3: 1,130,212 km (0.072 R)
• M4: 1,556,416 km (0.039 R)
• M5: 2,196,546 km (0.084 R)
• M6: 2,989,713 km (0.099 R)
• M7: 3,569,405 km (0.028 R)
• M8: 4,199,960 km (0.049 R)
• M9: 5,744,109 km (0.089 R)
• M10: 7,011,652 km (0.044 R)
• M11: 7,747,973 km (0.11 R)
• M12: 8,457,964 km (0.077 R)
• M13: 10,051,631 km (0.029 R)
• M14: 12,578,039 km (0.116 R)
• M15: 13,880,438 km (0.077 R)
• M16: 15,970,470 km (0.111 R)
• M17: 17,749,638 km (0.085 R)
• M18: 18,588,732 km (0.099 R)
• M19: 19,589,542 km (0.067 R)
• M20: 20,626,106 km (0.058 R)
• M21: 23,645,739 km (0.071 R)
• M22: 25,382,121 km (0.114 R)

Asteroid Belt

Center: 6.87 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 10 - Ice Giant

Semi-Major Axis: 8.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 47.7

Radius: 5.7

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 7.91 AU - 9.59 AU

Year: 16457 Days

Day: 21.7 Hours

Environment

Temp: -238 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 27,487,778 km

• M1: 70,909 km (0.045 R)
• M2: 672,742 km (0.07 R)
• M3: 1,297,462 km (0.073 R)
• M4: 1,722,320 km (0.118 R)
• M5: 2,265,959 km (0.054 R)
• M6: 2,722,232 km (0.111 R)
• M7: 3,622,812 km (0.1 R)
• M8: 5,121,633 km (0.056 R)
• M9: 5,447,906 km (0.098 R)
• M10: 5,730,346 km (0.102 R)
• M11: 8,999,509 km (0.089 R)
• M12: 12,297,244 km (0.114 R)
• M13: 13,435,086 km (0.115 R)
• M14: 15,354,277 km (0.092 R)
• M15: 18,187,361 km (0.109 R)
• M16: 19,075,075 km (0.106 R)
• M17: 23,208,165 km (0.118 R)
• M18: 24,939,012 km (0.075 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 450 - 12,639 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit