🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1

Radius: 1

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.76 AU - 0.84 AU

Year: 265 Days

Day: 26 Hours

Environment

Temp: 120 °C

Axial Tilt: 33.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 30,156,074 km

• M1: 24,235 km (0.103 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.41

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.66 AU - 0.98 AU

Year: 275 Days

Day: 46 Hours

Environment

Temp: 98 °C

Axial Tilt: 18.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 30,156,074 km

• M1: 534,064 km (0.084 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.34

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.51 AU - 2.03 AU

Year: 873 Days

Day: 17.7 Hours

Environment

Temp: -51 °C

Axial Tilt: 17.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 30,156,074 km

• M1: 407,056 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813.9

Radius: 13.9

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 4.54 AU - 6.04 AU

Year: 4512 Days

Day: 11.8 Hours

Environment

Temp: -148 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 30,156,074 km

• M1: 175,927 km (0.102 R)
• M2: 694,733 km (0.088 R)
• M3: 1,145,920 km (0.032 R)
• M4: 1,628,672 km (0.054 R)
• M5: 2,101,850 km (0.092 R)
• M6: 2,633,970 km (0.104 R)
• M7: 4,135,035 km (0.09 R)
• M8: 4,568,569 km (0.116 R)
• M9: 5,113,106 km (0.096 R)
• M10: 5,642,981 km (0.072 R)
• M11: 6,522,766 km (0.058 R)
• M12: 8,787,529 km (0.078 R)
• M13: 9,969,950 km (0.061 R)
• M14: 11,348,644 km (0.101 R)
• M15: 12,800,342 km (0.092 R)
• M16: 13,623,728 km (0.085 R)
• M17: 14,646,828 km (0.103 R)
• M18: 15,547,707 km (0.115 R)
• M19: 16,129,343 km (0.107 R)
• M20: 20,201,996 km (0.119 R)
• M21: 21,675,535 km (0.077 R)
• M22: 26,443,967 km (0.11 R)
• M23: 27,441,485 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 765.5

Radius: 10.3

Gravity: 7.22 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 4.18 AU - 6.64 AU

Year: 4667 Days

Day: 12.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 30,156,074 km

• M1: 128,953 km (0.049 R)
• M2: 519,703 km (0.075 R)
• M3: 924,664 km (0.062 R)
• M4: 1,330,523 km (0.066 R)
• M5: 1,674,449 km (0.069 R)
• M6: 2,035,129 km (0.11 R)
• M7: 2,580,862 km (0.047 R)
• M8: 3,221,889 km (0.12 R)
• M9: 4,034,505 km (0.119 R)
• M10: 4,768,283 km (0.029 R)
• M11: 5,417,388 km (0.044 R)
• M12: 6,661,444 km (0.119 R)
• M13: 8,463,350 km (0.063 R)
• M14: 10,793,187 km (0.102 R)
• M15: 11,296,584 km (0.115 R)
• M16: 12,350,501 km (0.07 R)
• M17: 15,499,387 km (0.055 R)
• M18: 18,170,756 km (0.071 R)
• M19: 18,492,541 km (0.042 R)
• M20: 18,883,739 km (0.055 R)
• M21: 20,712,872 km (0.034 R)
• M22: 22,361,740 km (0.11 R)
• M23: 22,731,546 km (0.112 R)
• M24: 23,865,199 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994

Radius: 13.4

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 7.6 AU - 7.84 AU

Year: 7955 Days

Day: 6.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 30,156,074 km

• M1: 167,699 km (0.084 R)
• M2: 654,191 km (0.082 R)
• M3: 1,080,396 km (0.069 R)
• M4: 1,745,508 km (0.06 R)
• M5: 2,941,693 km (0.053 R)
• M6: 3,935,322 km (0.066 R)
• M7: 5,365,028 km (0.103 R)
• M8: 6,216,689 km (0.118 R)
• M9: 7,974,763 km (0.081 R)
• M10: 11,664,296 km (0.119 R)
• M11: 13,152,196 km (0.106 R)
• M12: 18,599,503 km (0.058 R)
• M13: 20,787,372 km (0.084 R)
• M14: 24,293,348 km (0.103 R)
• M15: 26,044,540 km (0.082 R)
• M16: 28,175,712 km (0.1 R)
• M17: 31,053,376 km (0.069 R)
• M18: 34,690,101 km (0.044 R)
• M19: 36,907,889 km (0.079 R)
• M20: 39,094,860 km (0.077 R)
• M21: 42,404,414 km (0.081 R)
• M22: 44,396,459 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 422.4

Radius: 11.5

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 6.41 AU - 9.03 AU

Year: 7955 Days

Day: 9.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 30,156,074 km

• M1: 143,016 km (0.099 R)
• M2: 590,014 km (0.062 R)
• M3: 984,952 km (0.077 R)
• M4: 1,600,548 km (0.053 R)
• M5: 2,244,267 km (0.095 R)
• M6: 3,764,780 km (0.091 R)
• M7: 4,348,361 km (0.107 R)
• M8: 4,716,073 km (0.103 R)
• M9: 5,190,747 km (0.081 R)
• M10: 5,666,468 km (0.078 R)
• M11: 6,468,163 km (0.057 R)
• M12: 9,856,256 km (0.075 R)
• M13: 10,401,540 km (0.052 R)
• M14: 13,326,627 km (0.088 R)
• M15: 15,275,439 km (0.112 R)
• M16: 16,760,796 km (0.099 R)
• M17: 18,070,525 km (0.062 R)
• M18: 22,798,566 km (0.106 R)
• M19: 26,257,269 km (0.109 R)
• M20: 30,909,463 km (0.063 R)
• M21: 34,093,205 km (0.105 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.4

Radius: 13.1

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 7.82 AU - 8.86 AU

Year: 8932 Days

Day: 8.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 30,156,074 km

• M1: 170,542 km (0.09 R)
• M2: 579,692 km (0.089 R)
• M3: 994,826 km (0.059 R)
• M4: 1,544,149 km (0.113 R)
• M5: 1,958,835 km (0.105 R)
• M6: 2,431,564 km (0.113 R)
• M7: 3,001,232 km (0.079 R)
• M8: 4,411,043 km (0.115 R)
• M9: 6,224,169 km (0.101 R)
• M10: 7,488,271 km (0.102 R)
• M11: 8,916,931 km (0.098 R)
• M12: 11,212,809 km (0.057 R)
• M13: 13,761,957 km (0.095 R)
• M14: 14,470,303 km (0.103 R)
• M15: 24,627,849 km (0.111 R)
• M16: 27,850,037 km (0.095 R)
• M17: 29,465,245 km (0.077 R)
• M18: 31,647,130 km (0.106 R)
• M19: 33,090,600 km (0.069 R)
• M20: 33,510,821 km (0.046 R)
• M21: 36,442,191 km (0.049 R)
• M22: 37,456,165 km (0.11 R)

Planet 9 - Gas Giant

Semi-Major Axis: 8.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 213.8

Radius: 12.8

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 6.53 AU - 10.15 AU

Year: 8932 Days

Day: 6.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 30,156,074 km

• M1: 159,322 km (0.08 R)
• M2: 573,857 km (0.103 R)
• M3: 1,070,223 km (0.056 R)
• M4: 1,535,473 km (0.092 R)
• M5: 2,594,476 km (0.091 R)
• M6: 3,194,663 km (0.077 R)
• M7: 3,623,859 km (0.05 R)
• M8: 4,352,700 km (0.057 R)
• M9: 5,743,661 km (0.097 R)
• M10: 7,001,480 km (0.113 R)
• M11: 7,876,178 km (0.109 R)
• M12: 9,800,755 km (0.059 R)
• M13: 10,316,419 km (0.091 R)
• M14: 12,167,393 km (0.075 R)
• M15: 15,174,610 km (0.104 R)
• M16: 15,807,409 km (0.105 R)
• M17: 21,736,571 km (0.062 R)
• M18: 22,467,207 km (0.088 R)
• M19: 23,063,354 km (0.088 R)
• M20: 26,285,991 km (0.067 R)
• M21: 28,913,828 km (0.097 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: 200 - 15,615 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit