🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 205.2

Radius: 11

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.66 AU - 1.04 AU

Year: 551 Days

Day: 8.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,204,493 km

• M1: 136,882 km (0.108 R)
• M2: 482,752 km (0.096 R)
• M3: 838,496 km (0.082 R)
• M4: 1,184,965 km (0.092 R)
• M5: 1,756,578 km (0.108 R)
• M6: 2,769,805 km (0.04 R)
• M7: 3,577,633 km (0.089 R)
• M8: 4,024,931 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.2

Radius: 14.9

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.47 AU - 2.09 AU

Year: 1669 Days

Day: 13.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,204,493 km

• M1: 187,297 km (0.038 R)
• M2: 664,514 km (0.047 R)
• M3: 1,259,165 km (0.103 R)
• M4: 2,465,971 km (0.086 R)
• M5: 3,878,624 km (0.085 R)
• M6: 4,733,576 km (0.086 R)
• M7: 6,769,004 km (0.095 R)
• M8: 7,784,176 km (0.079 R)
• M9: 8,417,124 km (0.076 R)
• M10: 8,960,464 km (0.072 R)
• M11: 9,819,305 km (0.036 R)
• M12: 12,112,940 km (0.112 R)
• M13: 13,043,887 km (0.1 R)
• M14: 13,649,759 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161.8

Radius: 12.9

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1.82 AU - 2.02 AU

Year: 1870 Days

Day: 10 Hours

Environment

Temp: -206 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 57,204,493 km

• M1: 162,314 km (0.091 R)
• M2: 594,053 km (0.075 R)
• M3: 1,106,276 km (0.117 R)
• M4: 1,555,070 km (0.12 R)
• M5: 2,068,191 km (0.117 R)
• M6: 2,962,786 km (0.075 R)
• M7: 3,414,871 km (0.059 R)
• M8: 4,148,499 km (0.033 R)
• M9: 5,002,852 km (0.068 R)
• M10: 5,433,694 km (0.117 R)
• M11: 5,889,369 km (0.046 R)
• M12: 6,788,003 km (0.105 R)
• M13: 7,365,002 km (0.096 R)
• M14: 8,330,507 km (0.115 R)
• M15: 8,884,318 km (0.061 R)
• M16: 9,294,815 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.3

Radius: 10.8

Gravity: 7.42 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.69 AU - 2.35 AU

Year: 2018 Days

Day: 7.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,204,493 km

• M1: 134,339 km (0.104 R)
• M2: 494,271 km (0.107 R)
• M3: 842,086 km (0.119 R)
• M4: 1,183,768 km (0.109 R)
• M5: 2,813,338 km (0.082 R)
• M6: 3,445,538 km (0.093 R)
• M7: 3,786,621 km (0.118 R)
• M8: 4,453,828 km (0.104 R)
• M9: 5,871,118 km (0.096 R)
• M10: 6,440,039 km (0.066 R)
• M11: 7,188,178 km (0.063 R)
• M12: 8,725,745 km (0.042 R)
• M13: 11,704,986 km (0.067 R)
• M14: 12,398,223 km (0.106 R)
• M15: 12,776,107 km (0.062 R)
• M16: 14,365,734 km (0.083 R)
• M17: 15,351,733 km (0.101 R)
• M18: 15,885,798 km (0.086 R)
• M19: 16,583,672 km (0.095 R)
• M20: 17,197,771 km (0.038 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701.7

Radius: 8.5

Gravity: 9.71 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 3.18 AU - 5.3 AU

Year: 6137 Days

Day: 6.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,204,493 km

• M1: 109,356 km (0.087 R)
• M2: 437,125 km (0.083 R)
• M3: 760,406 km (0.111 R)
• M4: 1,142,030 km (0.096 R)
• M5: 3,048,954 km (0.083 R)
• M6: 3,694,619 km (0.118 R)
• M7: 4,693,334 km (0.111 R)
• M8: 5,893,707 km (0.041 R)
• M9: 7,886,201 km (0.085 R)
• M10: 8,277,101 km (0.054 R)
• M11: 9,703,815 km (0.118 R)
• M12: 10,662,887 km (0.09 R)
• M13: 11,633,778 km (0.089 R)
• M14: 12,347,808 km (0.034 R)
• M15: 14,432,903 km (0.073 R)
• M16: 15,377,165 km (0.099 R)
• M17: 21,621,679 km (0.096 R)
• M18: 33,352,546 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 27.2

Radius: 10.3

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 3.67 AU - 4.87 AU

Year: 6202 Days

Day: 5.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 57,204,493 km

• M1: 128,205 km (0.08 R)
• M2: 1,478,625 km (0.077 R)
• M3: 2,032,586 km (0.119 R)
• M4: 2,532,094 km (0.105 R)
• M5: 5,499,218 km (0.054 R)
• M6: 7,848,652 km (0.093 R)
• M7: 11,893,031 km (0.074 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 127.3

Radius: 5.6

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 6 AU - 6.52 AU

Year: 11010 Days

Day: 18.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 57,204,493 km

• M1: 70,161 km (0.083 R)
• M2: 354,846 km (0.115 R)
• M3: 1,233,434 km (0.116 R)
• M4: 1,496,128 km (0.027 R)
• M5: 2,303,209 km (0.095 R)
• M6: 2,481,081 km (0.091 R)
• M7: 2,703,234 km (0.104 R)
• M8: 3,772,410 km (0.119 R)
• M9: 4,727,891 km (0.116 R)
• M10: 5,124,625 km (0.092 R)
• M11: 5,805,445 km (0.093 R)
• M12: 6,706,173 km (0.102 R)
• M13: 9,299,004 km (0.099 R)
• M14: 9,921,480 km (0.112 R)
• M15: 10,749,355 km (0.077 R)
• M16: 13,249,285 km (0.109 R)
• M17: 16,886,907 km (0.119 R)
• M18: 20,168,785 km (0.073 R)
• M19: 21,350,758 km (0.088 R)
• M20: 21,564,084 km (0.045 R)
• M21: 22,725,712 km (0.101 R)
• M22: 24,467,779 km (0.113 R)
• M23: 28,129,935 km (0.118 R)
• M24: 28,558,084 km (0.09 R)
• M25: 28,990,571 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 850.2

Radius: 3.7

Gravity: 62.1 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 5.76 AU - 7.28 AU

Year: 11703 Days

Day: 18 Hours

Environment

Temp: -224 °C

Axial Tilt: 164.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 57,204,493 km

• M1: 81,082 km (0.105 R)
• M2: 206,295 km (0.112 R)
• M3: 1,651,860 km (0.106 R)
• M4: 2,272,840 km (0.117 R)
• M5: 4,433,782 km (0.12 R)
• M6: 6,853,378 km (0.105 R)
• M7: 13,471,737 km (0.099 R)
• M8: 17,703,113 km (0.036 R)
• M9: 18,417,891 km (0.085 R)
• M10: 19,904,595 km (0.11 R)
• M11: 20,938,915 km (0.106 R)
• M12: 22,649,118 km (0.073 R)
• M13: 25,137,229 km (0.11 R)
• M14: 25,535,459 km (0.08 R)
• M15: 26,242,608 km (0.088 R)
• M16: 27,066,444 km (0.051 R)
• M17: 30,197,976 km (0.085 R)
• M18: 40,069,939 km (0.114 R)
• M19: 42,132,595 km (0.09 R)
• M20: 45,284,323 km (0.11 R)
• M21: 47,520,960 km (0.055 R)
• M22: 47,976,935 km (0.094 R)
• M23: 49,830,153 km (0.114 R)
• M24: 57,033,141 km (0.065 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: 499 - 13,764 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit