🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.25

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.45 AU - 0.59 AU

Year: 246 Days

Day: 36.5 Hours

Environment

Temp: -117 °C

Axial Tilt: 36.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 186

Radius: 12.4

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.79 AU - 0.89 AU

Year: 505 Days

Day: 12.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,862,677 km

• M1: 154,235 km (0.1 R)
• M2: 575,802 km (0.097 R)
• M3: 1,068,129 km (0.096 R)
• M4: 1,580,053 km (0.063 R)
• M5: 2,019,870 km (0.119 R)
• M6: 2,432,312 km (0.078 R)
• M7: 3,025,467 km (0.076 R)
• M8: 3,942,053 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.3

Radius: 11.8

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.97 AU - 1.09 AU

Year: 686 Days

Day: 12.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 66,862,677 km

• M1: 146,756 km (0.065 R)
• M2: 618,587 km (0.073 R)
• M3: 1,084,285 km (0.07 R)
• M4: 1,520,064 km (0.069 R)
• M5: 1,971,102 km (0.076 R)
• M6: 2,888,735 km (0.058 R)
• M7: 3,264,974 km (0.114 R)
• M8: 3,702,697 km (0.119 R)
• M9: 4,352,849 km (0.096 R)
• M10: 5,077,651 km (0.078 R)
• M11: 6,365,838 km (0.115 R)
• M12: 6,920,397 km (0.027 R)
• M13: 7,300,376 km (0.111 R)
• M14: 7,670,780 km (0.078 R)
• M15: 8,424,305 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 258.7

Radius: 11.9

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.88 AU - 2.96 AU

Year: 3273 Days

Day: 13.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 66,862,677 km

• M1: 147,952 km (0.075 R)
• M2: 597,195 km (0.112 R)
• M3: 987,496 km (0.094 R)
• M4: 1,444,667 km (0.068 R)
• M5: 2,137,903 km (0.105 R)
• M6: 2,673,314 km (0.036 R)
• M7: 3,264,525 km (0.071 R)
• M8: 3,635,378 km (0.113 R)
• M9: 4,647,258 km (0.099 R)
• M10: 5,230,690 km (0.077 R)
• M11: 6,059,163 km (0.07 R)
• M12: 6,492,099 km (0.104 R)
• M13: 7,250,410 km (0.094 R)
• M14: 8,655,284 km (0.086 R)
• M15: 10,198,536 km (0.106 R)
• M16: 10,812,934 km (0.11 R)
• M17: 13,138,882 km (0.07 R)
• M18: 13,520,955 km (0.041 R)
• M19: 15,216,796 km (0.095 R)
• M20: 15,591,090 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.1

Radius: 8.1

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 2.81 AU - 3.83 AU

Year: 3968 Days

Day: 11.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,862,677 km

• M1: 126,560 km (0.102 R)
• M2: 799,900 km (0.084 R)
• M3: 1,748,500 km (0.066 R)
• M4: 2,466,719 km (0.026 R)
• M5: 2,906,986 km (0.098 R)
• M6: 3,398,564 km (0.103 R)
• M7: 5,847,781 km (0.075 R)
• M8: 6,139,646 km (0.119 R)
• M9: 8,238,205 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.8

Radius: 12

Gravity: 6.89 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 5.87 AU - 5.89 AU

Year: 9354 Days

Day: 13.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 66,862,677 km

• M1: 149,299 km (0.102 R)
• M2: 738,265 km (0.057 R)
• M3: 1,111,662 km (0.078 R)
• M4: 3,385,101 km (0.043 R)
• M5: 3,872,191 km (0.111 R)
• M6: 4,347,464 km (0.114 R)
• M7: 6,459,636 km (0.118 R)
• M8: 7,718,353 km (0.115 R)
• M9: 8,753,121 km (0.039 R)
• M10: 11,887,346 km (0.03 R)
• M11: 12,296,197 km (0.087 R)
• M12: 13,390,505 km (0.08 R)
• M13: 15,357,269 km (0.095 R)
• M14: 16,626,008 km (0.063 R)
• M15: 18,815,223 km (0.052 R)
• M16: 19,612,730 km (0.106 R)
• M17: 22,229,047 km (0.079 R)
• M18: 24,974,617 km (0.092 R)
• M19: 26,133,551 km (0.082 R)
• M20: 32,245,671 km (0.075 R)
• M21: 32,927,838 km (0.117 R)
• M22: 35,031,782 km (0.097 R)
• M23: 37,598,134 km (0.115 R)
• M24: 42,014,861 km (0.077 R)
• M25: 42,556,256 km (0.114 R)
• M26: 45,617,328 km (0.117 R)
• M27: 47,201,569 km (0.093 R)
• M28: 48,524,912 km (0.059 R)
• M29: 51,399,435 km (0.082 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 921

Radius: 5.3

Gravity: 32.79 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 7.58 AU - 7.96 AU

Year: 14208 Days

Day: 18.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 66,862,677 km

• M1: 65,973 km (0.067 R)
• M2: 324,478 km (0.092 R)
• M3: 495,767 km (0.101 R)
• M4: 1,294,919 km (0.112 R)
• M5: 1,678,189 km (0.117 R)
• M6: 2,017,626 km (0.109 R)
• M7: 2,488,261 km (0.048 R)
• M8: 2,808,850 km (0.107 R)
• M9: 3,004,075 km (0.056 R)
• M10: 3,367,747 km (0.082 R)
• M11: 3,818,635 km (0.048 R)
• M12: 3,997,853 km (0.052 R)
• M13: 4,373,045 km (0.119 R)
• M14: 4,602,528 km (0.083 R)
• M15: 4,840,090 km (0.036 R)
• M16: 8,516,158 km (0.119 R)
• M17: 10,525,706 km (0.087 R)
• M18: 12,698,466 km (0.105 R)
• M19: 15,302,217 km (0.106 R)
• M20: 15,603,357 km (0.038 R)
• M21: 16,062,623 km (0.058 R)
• M22: 16,452,175 km (0.102 R)
• M23: 23,273,090 km (0.112 R)
• M24: 24,481,841 km (0.095 R)
• M25: 31,400,144 km (0.038 R)
• M26: 35,041,207 km (0.105 R)
• M27: 45,897,076 km (0.103 R)
• M28: 49,741,142 km (0.113 R)
• M29: 53,276,140 km (0.106 R)
• M30: 56,974,798 km (0.118 R)
• M31: 58,427,842 km (0.082 R)
• M32: 64,096,255 km (0.052 R)
• M33: 65,272,393 km (0.053 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 433 - 18,219 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit