🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 213.1

Radius: 14.6

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.83 AU - 1.15 AU

Year: 626 Days

Day: 5.4 Hours

Environment

Temp: -151 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 46,501,432 km

• M1: 181,911 km (0.036 R)
• M2: 647,011 km (0.093 R)
• M3: 1,116,000 km (0.036 R)
• M4: 1,890,767 km (0.104 R)
• M5: 2,797,480 km (0.097 R)
• M6: 3,941,605 km (0.041 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43

Radius: 12

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.15 AU - 1.43 AU

Year: 932 Days

Day: 7.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 46,501,432 km

• M1: 153,338 km (0.072 R)
• M2: 552,764 km (0.099 R)
• M3: 926,460 km (0.091 R)
• M4: 1,370,167 km (0.098 R)
• M5: 2,286,753 km (0.112 R)
• M6: 2,741,680 km (0.084 R)
• M7: 3,408,438 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17.5

Radius: 12

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.12 AU - 1.48 AU

Year: 942 Days

Day: 12.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 46,501,432 km

• M1: 149,299 km (0.059 R)
• M2: 548,426 km (0.066 R)
• M3: 979,866 km (0.091 R)
• M4: 1,415,794 km (0.117 R)
• M5: 2,104,992 km (0.045 R)
• M6: 2,543,014 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308

Radius: 11.5

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.49 AU - 1.89 AU

Year: 1397 Days

Day: 12.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 46,501,432 km

• M1: 143,016 km (0.102 R)
• M2: 729,888 km (0.114 R)
• M3: 1,435,392 km (0.118 R)
• M4: 2,420,494 km (0.095 R)
• M5: 3,139,461 km (0.108 R)
• M6: 4,369,604 km (0.086 R)
• M7: 5,263,601 km (0.077 R)
• M8: 5,917,793 km (0.047 R)
• M9: 6,492,847 km (0.099 R)
• M10: 7,104,702 km (0.117 R)
• M11: 9,596,853 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.3

Radius: 15

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.56 AU - 1.86 AU

Year: 1422 Days

Day: 13.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 46,501,432 km

• M1: 186,549 km (0.087 R)
• M2: 678,127 km (0.101 R)
• M3: 1,158,336 km (0.086 R)
• M4: 1,720,525 km (0.063 R)
• M5: 2,385,039 km (0.112 R)
• M6: 3,218,149 km (0.103 R)
• M7: 3,774,803 km (0.054 R)
• M8: 4,575,301 km (0.1 R)
• M9: 5,845,088 km (0.095 R)
• M10: 6,775,138 km (0.098 R)
• M11: 7,288,558 km (0.111 R)
• M12: 8,449,587 km (0.115 R)
• M13: 9,250,534 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.2

Radius: 13.5

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.82 AU - 2.3 AU

Year: 1880 Days

Day: 6 Hours

Environment

Temp: -185 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 46,501,432 km

• M1: 167,849 km (0.079 R)
• M2: 775,366 km (0.106 R)
• M3: 1,415,046 km (0.119 R)
• M4: 1,955,244 km (0.105 R)
• M5: 3,557,886 km (0.097 R)
• M6: 4,275,956 km (0.106 R)
• M7: 4,926,557 km (0.114 R)
• M8: 6,072,028 km (0.055 R)
• M9: 8,976,770 km (0.106 R)
• M10: 9,691,548 km (0.083 R)
• M11: 11,991,616 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.8

Radius: 14.9

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 4.04 AU - 4.32 AU

Year: 5434 Days

Day: 14.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 46,501,432 km

• M1: 185,352 km (0.104 R)
• M2: 666,159 km (0.066 R)
• M3: 1,256,173 km (0.101 R)
• M4: 1,814,622 km (0.115 R)
• M5: 2,589,090 km (0.112 R)
• M6: 4,726,694 km (0.058 R)
• M7: 9,630,064 km (0.092 R)
• M8: 12,567,867 km (0.053 R)
• M9: 14,702,628 km (0.115 R)
• M10: 15,201,836 km (0.092 R)
• M11: 22,475,285 km (0.029 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 394

Radius: 5.3

Gravity: 14.03 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 6.52 AU - 10.08 AU

Year: 15204 Days

Day: 20.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 46,501,432 km

• M1: 73,752 km (0.1 R)
• M2: 432,637 km (0.077 R)
• M3: 784,491 km (0.073 R)
• M4: 1,349,822 km (0.111 R)
• M5: 1,711,250 km (0.12 R)
• M6: 1,889,720 km (0.104 R)
• M7: 2,208,813 km (0.104 R)
• M8: 2,461,035 km (0.085 R)
• M9: 3,093,385 km (0.089 R)
• M10: 3,285,618 km (0.045 R)
• M11: 3,747,277 km (0.068 R)
• M12: 4,991,931 km (0.115 R)
• M13: 8,355,041 km (0.099 R)
• M14: 10,230,998 km (0.111 R)
• M15: 11,723,088 km (0.088 R)
• M16: 12,191,628 km (0.092 R)
• M17: 13,736,525 km (0.117 R)
• M18: 21,224,946 km (0.097 R)
• M19: 25,336,195 km (0.117 R)
• M20: 25,725,448 km (0.113 R)
• M21: 26,020,006 km (0.075 R)
• M22: 29,732,427 km (0.091 R)
• M23: 30,933,399 km (0.082 R)
• M24: 34,254,322 km (0.113 R)
• M25: 35,817,171 km (0.057 R)
• M26: 39,213,940 km (0.11 R)
• M27: 42,681,918 km (0.087 R)
• M28: 45,628,099 km (0.117 R)
• M29: 46,204,200 km (0.112 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 262.9

Radius: 5.3

Gravity: 9.36 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 8.35 AU - 8.41 AU

Year: 15424 Days

Day: 17.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 46,501,432 km

• M1: 66,870 km (0.073 R)
• M2: 364,720 km (0.09 R)
• M3: 707,897 km (0.089 R)
• M4: 901,028 km (0.117 R)
• M5: 1,630,766 km (0.12 R)
• M6: 2,143,438 km (0.109 R)
• M7: 4,102,871 km (0.101 R)
• M8: 4,734,773 km (0.104 R)
• M9: 5,697,884 km (0.094 R)
• M10: 6,117,506 km (0.106 R)
• M11: 6,482,824 km (0.05 R)
• M12: 9,946,314 km (0.04 R)
• M13: 15,320,468 km (0.056 R)
• M14: 17,615,448 km (0.099 R)
• M15: 18,503,910 km (0.042 R)
• M16: 19,189,517 km (0.114 R)
• M17: 20,692,377 km (0.069 R)
• M18: 23,047,497 km (0.086 R)
• M19: 23,663,092 km (0.095 R)
• M20: 25,018,897 km (0.071 R)
• M21: 26,045,438 km (0.042 R)
• M22: 26,906,075 km (0.058 R)
• M23: 29,191,332 km (0.111 R)
• M24: 31,495,139 km (0.068 R)
• M25: 34,943,071 km (0.072 R)
• M26: 36,579,522 km (0.114 R)
• M27: 37,900,621 km (0.116 R)
• M28: 40,383,646 km (0.05 R)
• M29: 40,892,877 km (0.106 R)
• M30: 41,664,802 km (0.07 R)
• M31: 42,054,355 km (0.07 R)
• M32: 42,315,403 km (0.075 R)
• M33: 45,258,891 km (0.107 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 465 - 14,690 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit