🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.81

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.51 AU - 0.83 AU

Year: 360 Days

Day: 28.7 Hours

Environment

Temp: -129 °C

Axial Tilt: 32.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 562.1

Radius: 9.3

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.55 AU - 0.91 AU

Year: 409 Days

Day: 8.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 42,244,978 km

• M1: 130,300 km (0.093 R)
• M2: 464,501 km (0.076 R)
• M3: 771,177 km (0.087 R)
• M4: 1,153,998 km (0.101 R)
• M5: 1,835,566 km (0.098 R)
• M6: 2,359,158 km (0.068 R)
• M7: 3,064,064 km (0.107 R)
• M8: 3,385,250 km (0.08 R)
• M9: 3,979,453 km (0.081 R)
• M10: 4,742,103 km (0.091 R)
• M11: 5,204,360 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.2

Radius: 13.1

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.63 AU - 1.05 AU

Year: 505 Days

Day: 13.1 Hours

Environment

Temp: -139 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,244,978 km

• M1: 163,062 km (0.117 R)
• M2: 583,132 km (0.108 R)
• M3: 1,299,856 km (0.118 R)
• M4: 1,780,813 km (0.107 R)
• M5: 2,348,238 km (0.101 R)
• M6: 3,144,846 km (0.055 R)
• M7: 4,030,017 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.1

Radius: 8.4

Gravity: 6.65 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.93 AU - 1.49 AU

Year: 873 Days

Day: 12.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 42,244,978 km

• M1: 104,569 km (0.109 R)
• M2: 394,190 km (0.094 R)
• M3: 682,914 km (0.11 R)
• M4: 962,363 km (0.096 R)
• M5: 1,463,067 km (0.047 R)
• M6: 1,922,781 km (0.103 R)
• M7: 2,585,051 km (0.105 R)
• M8: 2,860,910 km (0.095 R)
• M9: 3,311,798 km (0.066 R)
• M10: 5,381,933 km (0.102 R)
• M11: 5,912,407 km (0.03 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489.7

Radius: 9.8

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.58 AU - 1.7 AU

Year: 1378 Days

Day: 6.9 Hours

Environment

Temp: -174 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,244,978 km

• M1: 123,119 km (0.089 R)
• M2: 455,526 km (0.097 R)
• M3: 777,460 km (0.107 R)
• M4: 1,613,563 km (0.074 R)
• M5: 2,097,661 km (0.065 R)
• M6: 2,540,770 km (0.073 R)
• M7: 3,031,750 km (0.083 R)
• M8: 4,136,232 km (0.078 R)
• M9: 5,468,999 km (0.099 R)
• M10: 6,088,633 km (0.066 R)
• M11: 10,349,779 km (0.116 R)
• M12: 10,735,293 km (0.078 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 461.6

Radius: 11.1

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 2.84 AU - 3.16 AU

Year: 3409 Days

Day: 14.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 42,244,978 km

• M1: 138,677 km (0.03 R)
• M2: 1,026,391 km (0.077 R)
• M3: 1,625,680 km (0.116 R)
• M4: 3,239,542 km (0.047 R)
• M5: 4,030,466 km (0.081 R)
• M6: 4,406,854 km (0.089 R)
• M7: 4,806,879 km (0.099 R)
• M8: 5,477,376 km (0.118 R)
• M9: 5,914,352 km (0.116 R)
• M10: 6,402,190 km (0.114 R)
• M11: 8,628,207 km (0.091 R)
• M12: 9,803,747 km (0.104 R)
• M13: 12,296,795 km (0.077 R)
• M14: 13,596,801 km (0.064 R)
• M15: 16,574,247 km (0.103 R)
• M16: 17,491,133 km (0.072 R)
• M17: 19,308,448 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 495.9

Radius: 10.9

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 2.69 AU - 3.32 AU

Year: 3409 Days

Day: 7.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 42,244,978 km

• M1: 135,835 km (0.074 R)
• M2: 751,131 km (0.072 R)
• M3: 1,192,445 km (0.087 R)
• M4: 1,648,569 km (0.045 R)
• M5: 2,037,074 km (0.116 R)
• M6: 3,207,079 km (0.089 R)
• M7: 3,588,255 km (0.051 R)
• M8: 4,313,056 km (0.111 R)
• M9: 5,657,043 km (0.106 R)
• M10: 6,080,256 km (0.104 R)
• M11: 7,354,231 km (0.066 R)
• M12: 7,699,054 km (0.096 R)
• M13: 9,440,822 km (0.085 R)
• M14: 9,811,077 km (0.104 R)
• M15: 13,223,554 km (0.102 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.2

Radius: 14

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 4.94 AU - 5.22 AU

Year: 7511 Days

Day: 13.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 42,244,978 km

• M1: 174,132 km (0.039 R)
• M2: 734,226 km (0.081 R)
• M3: 1,403,378 km (0.107 R)
• M4: 2,428,422 km (0.111 R)
• M5: 3,589,601 km (0.107 R)
• M6: 5,154,095 km (0.102 R)
• M7: 6,508,704 km (0.107 R)
• M8: 7,483,484 km (0.097 R)
• M9: 8,006,478 km (0.047 R)
• M10: 8,947,000 km (0.09 R)
• M11: 9,490,489 km (0.091 R)
• M12: 10,494,739 km (0.081 R)
• M13: 11,515,894 km (0.073 R)
• M14: 12,490,525 km (0.063 R)
• M15: 18,280,112 km (0.044 R)
• M16: 22,449,554 km (0.07 R)
• M17: 24,579,080 km (0.095 R)
• M18: 26,654,451 km (0.084 R)
• M19: 27,592,280 km (0.101 R)
• M20: 30,538,161 km (0.063 R)
• M21: 32,827,458 km (0.074 R)
• M22: 36,017,333 km (0.095 R)
• M23: 38,689,899 km (0.099 R)
• M24: 40,502,576 km (0.056 R)
• M25: 41,492,166 km (0.091 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 466 - 13,010 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit