🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 582.6

Radius: 11.1

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.53 AU - 0.57 AU

Year: 287 Days

Day: 7.9 Hours

Environment

Temp: -147 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 39,869,742 km

• M1: 138,228 km (0.108 R)
• M2: 757,863 km (0.079 R)
• M3: 1,232,387 km (0.105 R)
• M4: 1,580,352 km (0.03 R)
• M5: 1,944,922 km (0.084 R)
• M6: 2,432,611 km (0.08 R)
• M7: 3,148,736 km (0.1 R)
• M8: 3,779,889 km (0.077 R)
• M9: 4,217,314 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723.5

Radius: 11.5

Gravity: 5.47 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.5 AU - 0.78 AU

Year: 360 Days

Day: 7 Hours

Environment

Temp: -154 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 39,869,742 km

• M1: 143,016 km (0.065 R)
• M2: 554,709 km (0.089 R)
• M3: 931,546 km (0.066 R)
• M4: 1,749,697 km (0.037 R)
• M5: 3,082,464 km (0.072 R)
• M6: 4,335,047 km (0.077 R)
• M7: 4,912,944 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 805.2

Radius: 13.8

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.25 AU - 1.39 AU

Year: 1066 Days

Day: 10.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,869,742 km

• M1: 171,589 km (0.049 R)
• M2: 825,930 km (0.115 R)
• M3: 1,473,389 km (0.101 R)
• M4: 2,224,371 km (0.073 R)
• M5: 2,906,387 km (0.08 R)
• M6: 4,859,537 km (0.073 R)
• M7: 5,631,761 km (0.071 R)
• M8: 6,080,705 km (0.111 R)
• M9: 7,296,487 km (0.098 R)
• M10: 7,805,269 km (0.099 R)
• M11: 8,337,538 km (0.102 R)
• M12: 9,805,991 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.4

Radius: 9

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.95 AU - 2.59 AU

Year: 2404 Days

Day: 14.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 39,869,742 km

• M1: 111,899 km (0.098 R)
• M2: 470,784 km (0.102 R)
• M3: 847,322 km (0.106 R)
• M4: 1,165,068 km (0.108 R)
• M5: 1,625,082 km (0.078 R)
• M6: 3,543,226 km (0.111 R)
• M7: 4,757,811 km (0.117 R)
• M8: 5,955,940 km (0.068 R)
• M9: 6,553,135 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 987.1

Radius: 8.3

Gravity: 14.33 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 2.31 AU - 2.41 AU

Year: 2548 Days

Day: 11.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 39,869,742 km

• M1: 103,223 km (0.053 R)
• M2: 402,568 km (0.106 R)
• M3: 860,487 km (0.082 R)
• M4: 1,254,528 km (0.112 R)
• M5: 1,606,980 km (0.086 R)
• M6: 1,923,230 km (0.111 R)
• M7: 2,184,129 km (0.076 R)
• M8: 3,382,857 km (0.058 R)
• M9: 4,329,213 km (0.041 R)
• M10: 4,665,658 km (0.086 R)
• M11: 5,942,177 km (0.057 R)
• M12: 7,500,538 km (0.108 R)
• M13: 8,086,812 km (0.074 R)
• M14: 8,598,437 km (0.04 R)
• M15: 8,915,734 km (0.071 R)
• M16: 11,027,308 km (0.088 R)
• M17: 12,667,648 km (0.054 R)
• M18: 13,879,690 km (0.085 R)
• M19: 14,662,985 km (0.042 R)
• M20: 16,914,134 km (0.077 R)
• M21: 17,412,893 km (0.105 R)
• M22: 18,150,560 km (0.102 R)
• M23: 19,871,085 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56.9

Radius: 11.4

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 2.33 AU - 2.39 AU

Year: 2548 Days

Day: 14.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 39,869,742 km

• M1: 142,118 km (0.109 R)
• M2: 595,250 km (0.094 R)
• M3: 1,310,627 km (0.101 R)
• M4: 1,847,833 km (0.069 R)
• M5: 3,252,407 km (0.058 R)
• M6: 3,684,596 km (0.072 R)
• M7: 5,716,733 km (0.1 R)
• M8: 6,349,532 km (0.082 R)
• M9: 7,028,407 km (0.119 R)
• M10: 7,755,154 km (0.086 R)
• M11: 8,258,850 km (0.088 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 365.2

Radius: 12.7

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 2.84 AU - 4.42 AU

Year: 4861 Days

Day: 10.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 39,869,742 km

• M1: 158,125 km (0.093 R)
• M2: 612,304 km (0.099 R)
• M3: 1,047,484 km (0.093 R)
• M4: 1,457,532 km (0.077 R)
• M5: 2,096,016 km (0.071 R)
• M6: 2,949,322 km (0.113 R)
• M7: 3,592,593 km (0.05 R)
• M8: 4,065,023 km (0.106 R)
• M9: 5,011,080 km (0.041 R)
• M10: 7,305,762 km (0.092 R)
• M11: 8,276,203 km (0.119 R)
• M12: 9,521,156 km (0.092 R)
• M13: 10,596,017 km (0.055 R)
• M14: 11,530,256 km (0.08 R)
• M15: 12,017,496 km (0.09 R)
• M16: 15,026,508 km (0.109 R)
• M17: 15,554,887 km (0.097 R)
• M18: 18,686,569 km (0.103 R)
• M19: 20,176,414 km (0.06 R)
• M20: 22,695,194 km (0.108 R)
• M21: 23,674,013 km (0.105 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270

Radius: 10.4

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 4.19 AU - 4.89 AU

Year: 6800 Days

Day: 6.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 39,869,742 km

• M1: 132,394 km (0.066 R)
• M2: 498,610 km (0.062 R)
• M3: 1,183,020 km (0.11 R)
• M4: 1,625,231 km (0.112 R)
• M5: 2,594,027 km (0.113 R)
• M6: 3,370,141 km (0.05 R)
• M7: 3,738,301 km (0.111 R)
• M8: 4,753,024 km (0.117 R)
• M9: 5,571,922 km (0.082 R)
• M10: 6,029,991 km (0.115 R)
• M11: 6,389,923 km (0.092 R)
• M12: 6,956,899 km (0.114 R)
• M13: 7,940,505 km (0.081 R)
• M14: 9,248,290 km (0.112 R)
• M15: 10,393,611 km (0.111 R)
• M16: 11,815,689 km (0.101 R)
• M17: 14,449,958 km (0.115 R)
• M18: 15,875,476 km (0.067 R)
• M19: 18,001,112 km (0.109 R)
• M20: 20,310,005 km (0.086 R)
• M21: 21,190,239 km (0.028 R)
• M22: 21,605,074 km (0.073 R)
• M23: 22,665,723 km (0.111 R)
• M24: 26,055,910 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 191.4

Radius: 5.1

Gravity: 7.36 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 6.56 AU - 8.38 AU

Year: 14351 Days

Day: 16.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 39,869,742 km

• M1: 137,480 km (0.102 R)
• M2: 401,371 km (0.108 R)
• M3: 763,099 km (0.098 R)
• M4: 1,999,076 km (0.08 R)
• M5: 2,196,396 km (0.078 R)
• M6: 2,649,378 km (0.093 R)
• M7: 3,295,043 km (0.088 R)
• M8: 5,790,634 km (0.03 R)
• M9: 9,504,551 km (0.058 R)
• M10: 11,045,708 km (0.105 R)
• M11: 16,589,506 km (0.1 R)
• M12: 18,236,280 km (0.068 R)
• M13: 30,258,563 km (0.08 R)
• M14: 31,060,108 km (0.08 R)
• M15: 32,392,726 km (0.069 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 361 - 18,198 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit